Team GPR

[mr bucketracer]

What's the timetable for this boys?
and also how many starters?! I know I'll be there for abit of back track action....
Ok that sounds wrongi was told friday by brent and sunday from my mate so no idea when it is:shit:

[Bert]

What's the timetable for this boys?
and also how many starters?! I know I'll be there for abit of back track action....
Ok that sounds wrong

Yea, better post something up.

SUNDAY.....

Start time 10am, but I think we are aiming to get there a little earlier to setup.

Entry to the back track is off Kawakawa Rd at the Manawatu Remote control car club entry (by Higgins corner).

https://maps.google.co.nz/maps?oe=UTF-8&hl=en&client=safari&q=map+kawakawa+road+feilding&um=1&ie=UTF-8&sa=X&ei=S7hZVNSFHIv38QXn5YGQBg&ved=0CAgQ_AUoAQ&output=classic&dg=brw

Bring cash.

If things change I'll update everyone.

QUOTE=mr bucketracer;1130788648]i was told friday by brent and sunday from my mate so no idea when it is:shit:[/QUOTE]

What are you on about??

[mr bucketracer]

Originally Posted by Bert



Anyway.
Anyone keen for Manfield back track test 7th Nov.
Contact one of your friendly GPR team members.
Price TBA based on numbers...


7th ??? lol:nya:

[TALLIS]

Originally Posted by Bert



Anyway.
Anyone keen for Manfield back track test 7th Nov.
Contact one of your friendly GPR team members.
Price TBA based on numbers...


7th ??? lol:nya:

I think berts let it slip, he's got a big budget this summer, private testing on Friday

[Bert]

Originally Posted by Bert



Anyway.
Anyone keen for Manfield back track test 7th Nov.
Contact one of your friendly GPR team members.
Price TBA based on numbers...


7th ??? lol:nya:

O.k. I got it wrong originally...
How's my motor, got more horsepower yet??

[mr bucketracer]

O.k. I got it wrong originally...
How's my motor, got more horsepower yet??hopfully have it done by tomorrow

[Bert]

hopfully have it done by tomorrow

Choice... Man is hard at work!!

Weekend turning session then??

[mr bucketracer]

I think berts let it slip, he's got a big budget this summer, private testing on Fridaysneaky bugger he is . hope he has a push bike;)

[Bert]

I think berts let it slip, he's got a big budget this summer, private testing on Friday


sneaky bugger he is . hope he has a push bike;)

Yip.... Getting race fit,so you c#nts don't lap me four times in the GP!
Need all the practice I can get boys.
But no, I just got confused..

[seymour14]

Word is that there might be 2 new GPR bikes fresh out of the stable on the weekend?:yes:

Hope they aren't like the two in the Melbourne cup...!:brick:

One also has my new go fast gear change and brake levers on them. I really need to start selling this stuff...

[steamroller]

305117305118

[Bert]

305117305118

Shit, did you make that?
A home built bike, custom built frame, converted forks, homemade carbon body work...

How about a photo of the NC30? Just to prove your a real man...:killingme

[steamroller]

Shit, did you make that?
A home built bike, custom built frame, converted forks, homemade carbon body work...

How about a photo of the NC30? Just to prove your a real man...:killingme

A bit of a comparison on the two sizes of the V4 v GPR150, just to prove I'm a real girl :girlfight:

[Bert]

A bit of a comparison on the two sizes of the V4 v GPR150, just to prove I'm a real girl :girlfight:

:niceone:

Sh!t another completely home built bike (but not a bucket)... My god maybe you aren't a girl blouse...

Look even seen on track...
305122


Shhh don't tell anyone!!
305124


Something for later
http://youtu.be/Oxj_OAb5bqk

[Grumph]

Very nice...where do you get the inline fuel taps ?

thanks

[husaberg]

Very nice...where do you get the inline fuel taps ?

thanks

I used to get ones exactly like that from the lawnmower shop......... big bore they were too....

[mr bucketracer]

Very nice...where do you get the inline fuel taps ?

thanksif its the one i think your looking at it was robbed off my bucket sidecar 20 years ago

[mr bucketracer]

I used to get ones exactly like that from the lawnmower shop......... big bore they were too....thanks you are right there is one on my dads victa lawn mower

[F5 Dave]

305117305118
Hmm why does that front guard paint look familiar?

[chrisc]

Pitbike forks? Interested to see how they go for you. You have loads of faith in China.

Looking good guys!

[Bert]

Pitbike forks? Interested to see how they go for you. You have loads of faith in China.

Looking good guys!

No choice... Run out of RS125 forks (even the TZ125) forks seem hard to find...

Faith wise.... That's why our test rider will be trying them out....


Fastace now make something very similar to the old polini pre-GP forks.
http://www.fastace.es/product_info.php?products_id=130&language=en
(Husa found them).
But they don't seem that interested in shipping to NZ....

[chrisc]

No choice... Run out of RS125 forks (even the TZ125) forks seem hard to find...

Faith wise.... That's why our test rider will be trying them out....


Fastace now make something very similar to the old polini pre-GP forks.
http://www.fastace.es/product_info.php?products_id=130&language=en
(Husa found them).
But they don't seem that interested in shipping to NZ....

NSF100 application huh, interesting.
I think I can get my hands on some NX4 forks and rear shocks but as you say, they're not exactly cheap

[Bert]

NSF100 application huh, interesting.
I think I can get my hands on some NX4 forks and rear shocks but as you say, they're not exactly cheap

Let us know. We have imported a few sets (Japan, USA etc.). But price has slowly gone up. Gone are the days of a set of forks for 300-500... More like 800+ Now. Which makes things like the fastace option quite appealing...

But we did set some goals this year to reduce the amount of RS running gear on our buckets,mainly to free up bits for larger projects.

[chrisc]

Let us know. We have imported a few sets (Japan, USA etc.). But price has slowly gone up. Gone are the days of a set of forks for 300-500... More like 800+ Now. Which makes things like the fastace option quite appealing...

But we did set some goals this year to reduce the amount of RS running gear on our buckets,mainly to free up bits for larger projects.

Yeah you'd be looking between $850 and $1000 in my experience which I really don't think is that bad considering they're GP bike forks.

I do agree it's a good idea to be reducing the amount of RS parts used though. This fits more within the homebuilt angle it seems you boys are taking (which I think is great). On the other hand, I'm a firm believer that there will be a strong resurgence in GP125 bike racing around the world soon enough. If you had loads of RS parts, you'd be in a pretty good position. Lets not get into the GP bike parts debate here though :rolleyes:

On another angle, I've been very interested in road bike forks lately and have noticed some sport bikes have pretty solid but short forks, like the Ducati Monster. Whilst they'd obviously require re-springing and re-valving (most forks usually do anyway), I wonder how good the base fork construction is for a racing application. Any experience here?

[mr bucketracer]

wonder if some of us wanted a set of forks say 5 sets and see if fast ace would supply them , like cris said the ones we are running maybe worth money one day when honda rs have a come back in new old class's

[husaberg]

wonder if some of us wanted a set of forks say 5 sets and see if fast ace would supply them , like cris said the ones we are running maybe worth money one day when honda rs have a come back in new old class's
try these guys
http://www.nzmotorfactory.co.nz/index.php?option=com_virtuemart&page=shop.browse&category_id=51&Itemid=1
I tried to find the catalogue but can't place it at the moment......

[Bert]

Great day at GPR headquarters today.
Bikes wheeled outside in the sun and prepped up for tomorrow's test day at manfield.

Both of the new project bikes will be making their first outing.
And I'm looking forward to seeing the KTM on track.

We will try and get some photos to post...

[mr bucketracer]

will just about have a spear bike each lol

[Bert]

will just about have a spear bike each lol

Yea, just need to get the two strokers going and we will be sorted...

[Pumba]

Yea, just need to get the two strokers going and we will be sorted...

:killingme:killingme:killingme:killingme:killingme :killingme:killingme:killingme:killingme:killingme (well your 2smoke anyway)

[Bert]

:killingme:killingme:killingme:killingme:killingme :killingme:killingme:killingme:killingme:killingme (well your 2smoke anyway)

Your a hard master....:Playnice::finger:

[mr bucketracer]

great day of bucket fun at the back track of manfeild

[Bert]

305182305183
great day of bucket fun at the back track of manfeild

Can't wait for the footage and feedback around the GPR013 forks....

Great day sorting out a few issues and I'm sure everyone enjoyed themselves.

[mr bucketracer]

gpr13 pitbike forks worked very well , i think i may of gone faster on that than my own bike...well its my bike but someone may say diffient lol .. ktm first time out needs a sort out with some miner stuff ..one been water pump seal lecking water in engine but did fell power wise very good

[TALLIS]

Absolutely fantastic days racing! great track, weather was mint and the motard boys we're more than happy to have us out there. thought :facepalm:afew of the Wellington boys would of made the trip up, but there was 9 of us at 1 stage flying the flag. There we're even afew "real bikes" out there, but some how a race never eventuated

[seymour14]

great day of bucket fun at the back track of manfeild

Mint weather, lots of fun on a track with a bit of extra width, it's all good.

Even had time mid week to make a bit more bling, the North Island series must be getting close!

[steamroller]

Absolutely fantastic days racing! great track, weather was mint and the motard boys we're more than happy to have us out there. thought :facepalm:afew of the Wellington boys would of made the trip up, but there was 9 of us at 1 stage flying the flag. There we're even afew "real bikes" out there, but some how a race never eventuated

OMG real bikes you say. Some one must have bean at church on his knees all day hope his lips are not to sore at lest he was doing the one thing he is good at.

[chrisc]

pitbike forks worked very well
Nice one Scott. Any more comments on this?
Did they have a tonne of travel/dive under heavy braking?
Did they bounce around at all? The pitbikes look like they do when being ridden on kart tracks, maybe due to rear shock and tiny wheels though.

[Pumba]

Your a hard master....:Playnice::finger:

No just a grumpy man (I am not old yet dam it!) who has no time or money to race so spends far too much time online and feels the need to take the piss whenever he can to make-up for, well, refer to the reasons above :weep:

[mr bucketracer]

Nice one Scott. Any more comments on this?
Did they have a tonne of travel/dive under heavy braking?
Did they bounce around at all? The pitbikes look like they do when being ridden on kart tracks, maybe due to rear shock and tiny wheels though.we run more oil in them so ended up around the same travel as the rs fork . realy just felt the same as honda rs forks . think just some lighter oil would be the go if i was to say anything

[mr bucketracer]

next test is a kart track to see if they work as good

[Rick 52]

OMG real bikes you say. Some one must have bean at church on his knees all day hope his lips are not to sore at lest he was doing the one thing he is good at.

Nice one fellas, looks like he all talk and no trousers !

[F5 Dave]

I would have been keen if the 100 was going, the 50 would have been a bit lost with you fast guys. Next time if its a sunday I'm keen.

[koba]

305117305118

How'd she go?

[koba]

I had the new head all finished ready to go, was installing engine late Saturday to find two of my engine mounts had snapped.
Bugger!

[Bert]

How'd she go?

Well Regan was smiling straight away.


I had the new head all finished ready to go, was installing engine late Saturday to find two of my engine mounts had snapped.
Bugger!

Ass, your ears were probably burning on Sunday (as we were surprised you didn't make it up): you should have come up anyway, I only did half as many laps as my bike did...

The good thing was the interest shown and the potential increase in local numbers, which is what we need to get things going up here.

A few of us are thinking of coming down this weekend... See how the week pans out.

[koba]

Well Regan was smiling straight away.



Ass, your ears were probably burning on Sunday (as we were surprised you didn't make it up): you should have come up anyway, I only did half as many laps as my bike did...

The good thing was the interest shown and the potential increase in local numbers, which is what we need to get things going up here.

A few of us are thinking of coming down this weekend... See how the week pans out.

Spent the time getting the mounts ALMOST fixed.

[steamroller]

How'd she go?

Went really good aye, the front end seems' to stick just as good as the rs125 front end. All it needs is some better brakes and she is good to race. Roll on the north island series so I can smash Mr Bucket Racer. Not like the video you will see soon, I gave him those ones lol :2thumbsup

[mr bucketracer]

Went really good aye, the front end seems' to stick just as good as the rs125 front end. All it needs is some better brakes and she is good to race. Roll on the north island series so I can smash Mr Bucket Racer. Not like the video you will see soon, I gave him those ones lol :2thumbsupi like playing with you on the track now its like giving you lollies to the slaughter house ha ha... ha ha ha ha:devil2:

[steamroller]

i like playing with you on the track now its like giving you lollies to the slaughter house ha ha... ha ha ha ha:devil2:

I just seen your video i dont like it looks like you could kill me every where:crybaby: Need to get back on my game fast.

[koba]

I think I might need to sort some horsepower.

[mr bucketracer]

I think I might need to sort some horsepower.my bike was slow to steamys bike , there is a promblem i need to sort before the big race;s

[Bert]

my bike was slow to steamys bike , there is a promblem i need to sort before the big race;s

Phase2.....:msn-wink:

305295

[mr bucketracer]

Phase2.....:msn-wink:

305295sweat ......

[Bert]

sweat ......

I'll see you tonight.
Have other preezies for you as well.

Do me a fav though, grab that 250motor from the workshop...

[mr bucketracer]

I'll see you tonight.
Have other preezies for you as well.

Do me a fav though, grab that 250motor from the workshop...baby sitting today so don't know if i will make it around to grab it

[Bert]

baby sitting today so don't know if i will make it around to grab it

Babysitting my baby... See ya shortly.

[seymour14]

Some video from the Manfeild back track.


http://youtu.be/j3udLM7gMgo

[mr bucketracer]

the times going off my camrea are around 57secs at my best

[F5 Dave]

I'm pretty sure I did 56.5 last time I was there.














:lol:

[mr bucketracer]

I'm pretty sure I did 56.5 last time I was there.














:lol:lol going of my camrea at the bob track around 58-59sec's hard riding and 60secs playing , you faster guys i guess around 57sec

[F5 Dave]

On an average I'm still going. :shutup:

[mr bucketracer]

On an average I'm still blowing. :shutup:fixed it for you:laugh:

[F5 Dave]

Well that's enough homo erotica for the night.

[mr bucketracer]

my good old suzuki engine bucket has been losing power , 21hp now . i have just removed the top of the engine and found one side of the piston has been hitting .3 to .4 and pinshed the ring , one was thinking the top of the piston machined wrong , or gudgen machined on the piss or a bent rod . so will have to get to the bottom of this as time is ticking

[TALLIS]

my good old suzuki engine bucket has been losing power , 21hp now . i have just removed the top of the engine and found one side of the piston has been hitting .3 to .4 and pinshed the ring , one was thinking the top of the piston machined wrong , or gudgen machined on the piss or a bent rod . so will have to get to the bottom of this as time is ticking


Don't worry Scott, I've got an engine hear you can borrow, mite not have as much power as you want, but it's all the power that you need! Lol

[mr bucketracer]

thanks but no thanks lol , its not the rod thank goodness as its just had a new one put in it . so has to be the piston

[koba]

ONLY 21!
Sheesh, I must try and race on a bike with more than 20 some day!

[mr bucketracer]

ONLY 21!
Sheesh, I must try and race on a bike with more than 20 some day!you dont weigh 105 kg's (-;

[koba]

you dont weigh 105 kg's (-;

True.......

[Pumba]

you dont weigh 105 kg's (-;

But I do. Does that mean I can have a 20+ engine then please sir

[koba]

But I do. Does that mean I can have a 20+ engine then please sir

:no: I couldn't cope with that!

[TALLIS]

thanks but no thanks lol , its not the rod thank goodness as its just had a new one put in it . so has to be the piston

Any progress being made mate? Time is a ticking. I've heard sawdust and whiskey can sort most engine issues

[mr bucketracer]

Any progress being made mate? Time is a ticking. I've heard sawdust and whiskey can sort most engine issuesengine back together so hope its sorted , i never found why it did what it did as i have run piston to head clearance .3 closer before and never hit

[chrisc]

Kerry, how's that home made cylinder coming along?

I just went through all 105 pages of this thread checking out photos of the bikes. There seems to be a few now huh! Lots we don't see much of, what happened to them all?

[husaberg]

Kerry, how's that home made cylinder coming along?

I just went through all 105 pages of this thread checking out photos of the bikes. There seems to be a few now huh! Lots we don't see much of, what happened to them all?

Use Thread tools view thread images set to 70 per page...........

306035

[chrisc]

Use Thread tools view thread images set to 70 per page...........

I know that trick. For some reason only 2 pages of images come up though

[husaberg]

I know that trick. For some reason only 2 pages of images come up though

Its because you have it set on its KB default of search last 2 months you need to set it to from beginning

306036

[chrisc]

Its because you have it set on its KB default of search last 2 months you need to set it to from beginning

306036

ooooooooohhhhh. thanks.

[Bert]

Kerry, how's that home made cylinder coming along?

I just went through all 105 pages of this thread checking out photos of the bikes. There seems to be a few now huh! Lots we don't see much of, what happened to them all?

Away being plated.

Scott has built 13 frames (twelve since Mr William's 650r).
Not all are buckets some are F3/superlites. All Specs up on our Website for each bike.

But here's the situation.
The only two that have disapaired currently is my twostroke (GPR003 - half converted back to original superlite form) and the GT100 (GPR005) which Scott's sorting out the shitty gearbox.
GPR004 has been taken over by captain cheese (so watch out everyone).
The rest are either in the final throws of tuning (namely Scott's two Superlites Projects) or on track this summer.:woohoo:

[mr bucketracer]

Away being plated.

Scott has built 13 frames (twelve since Mr William's 650r).
Not all are buckets some are F3/superlites. All Specs up on our Website for each bike.

But here's the situation.
The only two that have disapaired currently is my twostroke (GPR003 - half converted back to original superlite form) and the GT100 (GPR005) which Scott's sorting out the shitty gearbox.
GPR004 has been taken over by captain cheese (so watch out everyone).
The rest are either in the final throws of tuning (namely Scott's two Superlites Projects) or on track this summer.:woohoo:happy birthday bert (-;

[Bert]

happy birthday bert (-;

Quite.. Your reminding me I'm getting fat and old:pinch:

[F5 Dave]

Aww Smoochies for the birthday boy:love:


anyway, - get that TZR going you slacker.

[Pumba]

Quite.. Your reminding me I'm getting fat and old:pinch:

Getting?

10 freaking ch thingies

[andrew a]

Quite.. Your reminding me I'm getting fat and old:pinch:

more mature!
Happy birthday

[mr bucketracer]

But I do. Does that mean I can have a 20+ engine then please sirmaybe team gpr should have something like the first stardard powered fxr150 in A grade in the north island rounds gets a engine job done ha ha , have to think about that

[Bert]

Aww Smoochies for the birthday boy:love:
anyway, - get that TZR going you slacker.
On the bench :)


Getting?
10 freaking ch thingies
I take it you don't look in the mirror :innocent:


more mature!
Happy birthday
Thanks Andrew. But I doubt it...

[mr bucketracer]

anybody run a tps on there bucket

[F5 Dave]

Sure do. It's currently locked on position. One day I'll make the splitter cable and lever arrangement for it:crazy:

[speedpro]

anybody run a tps on there bucket

Yes, on my FI FZR125 twin.

I also have a carb ready to try(for over a year now) with TPS to connect to the Ignitech on my good MB engine

[Pumba]

maybe team gpr should have something like the first stardard powered fxr150 in A grade in the north island rounds gets a engine job done ha ha , have to think about that

I think I would defiantly put a standard barrel and piston bake in my bike for that. I would still have to show up though:blink:


I take it you don't look in the mirror :innocent:

Every morning. Some fat old bastard that that kind of looks like my father keeps sneaking into it and steers back at me.

[Bert]

maybe team gpr should have something like the first stardard powered fxr150 in A grade in the north island rounds gets a engine job done ha ha , have to think about that


I think I would defiantly put a standard barrel and piston bake in my bike for that. I would still have to show up though:blink:

Every morning. Some fat old bastard that that kind of looks like my father keeps sneaking into it and steers back at me.

Scott this a really cool idea...
It could be a neat prize for someone and make it interesting.

[mr bucketracer]

Scott this a really cool idea...
It could be a neat prize for someone and make it interesting.maybe put top A grader and Top B grader stock fxr in the hat and out of 5 see who gets it , just want to pull more in the ni rounds

[Bert]

anybody run a tps on there bucket

I sense there might be more to this question...
I wander what gains can be made with a FXR or KTM with TPS???

[NOID]

Quite.. Your reminding me I'm getting fat and old:pinch:
Happy birthday dude. Old and wise . . Ish:msn-wink:

[TZ350]

anybody run a tps on their bucket

306062

Yes ......

[mr bucketracer]

306062

Yes ......how is the beast going as your thread looks a bit hijacked

[mr bucketracer]

I sense there might be more to this question...
I wonder what gains can be made with a FXR or KTM with TPS???yes that kind of thing , seen are carbs now have a tps on them is it worth the time to see is there are gains or ones big enough to warrant it

[Bert]

Yes, on my FI FZR125 twin.

I also have a carb ready to try(for over a year now) with TPS to connect to the Ignitech on my good MB engine

Mike, would it possible to post up a basic TPS ignition map for your FZR?

[TZ350]

how is the beast going as your thread looks a bit hijacked

Yes the party has taken on a bit of a life of its own, but interesting stuff going on there all the same.

The old EFI Beast has been parked up for a while, while we get a few new projects out of the way. The team has been trying to get some 50's going, its taking more bike building, development and dyno time than expected. For the last few months its been like wading through treacle.

I would like a 50 of my own to ride too. I am still spending an hour or so most nights working on a new 50 and 125 2T with the RGV barrel. I hope to get back to experimenting with EFI on the dyno soon as I need a working fuel injection system for the new bike, so busy as.

306075306074

Copper cooling fins on the RGV125, If all this copper and some ducting does the job I hope to make well over 30+ reliable hp with a good spread of power. I am also looking at using dihydrogen monoxide, the poor mans octane booster, as a fuel additive for combustion control. It will take a bit of clever chemistry but I think I have the basic principles for producing a stable mixture with 91 pump fuel sorted. I have a 4 channel temperature data logger to keep track of things, so it should be interesting.

[speedpro]

Mike, would it possible to post up a basic TPS ignition map for your FZR?

There isn't much point as I have been concentrating on the VE map which uses the MAP sensor. I have the switchover point set to 95% or something like that so the TPS map only gets used basically at full throttle. There is a bit of blending of fuel requirements during switchover, it isn't a sudden one or the other thing. The map has been fiddled with but is in no way any sort of indicator of what you should have. I've only adjusted the fuel as well, not ignition which is what I imagine you will be interested in given you bike has a carb.

[Bert]

A little bit early, but happy 40th Scotty.

Annual pre season GPR BBQ, beers and Scott's Gigglejuice.

For those that could be there: sing along.


http://youtu.be/2pUUo3WyrHk

[mr bucketracer]

thanks guys lol crash me next weekend lol , im bigger (-;:wings:

[F5 Dave]

Oh man, I could use a new set of leathers. OK start saving for my 40th. (Its OK there's a bit of time before it comes around again).

[Kickaha]

Oh man, I could use a new set of leathers. OK start saving for my 40th. (Its OK there's a bit of time before it comes around again).

Order some off Leda, it'll take a year to get them so you'll have plenty of time to save

[mr bucketracer]

Oh man, I could use a new set of leathers. OK start saving for my 40th. (Its OK there's a bit of time before it comes around again).glad i have some good mates that look after the fat guy:cool:

[Bert]

I sense there might be more to this question...
I wander what gains can be made with a FXR or KTM with TPS???

Well a little bit on time was spent yesterday on TPS.

Gains, none in terms of peak power or even any increase anywhere.
But, the bum dyno provided some different feedback (being smoother) and it seems that one can snap the throttle open and it will not loose power.
So it's still worth playing a little more (maybe with oxygen sensor and temp probes to get a better handle on what's actually happening)...
Maybe a MAP sensor might be a better option than TPS??

Anyway 5 more sleeps to the norfs.

Little clip :innocent:


http://youtu.be/66ANasdCIzU

[husaberg]

carbed mx bikes have tps so I say drivability must be worth it?

[Bert]

carbed mx bikes have tps so I say drivability must be worth it?

Our thoughts exactly. But sort of hard to start as maps aren't that common (nor any guidance on where to start)...:brick:

[husaberg]

Our thoughts exactly. But sort of hard to start as maps aren't that common (nor any guidance on where to start)...:brick:

I just had a google I know.......crf150r has one it will be one net somewhere

[Bert]

I just had a google I know.......crf150r has one it will be one net somewhere

Don't be shy and post up some links, buggered if I could find any...:angry2:

[husaberg]

Don't be shy and post up some links, buggered if I could find any...:angry2:

I am looking on 3d ignition map trying gsxr600 and crf150r
But as they have poppet valves my heart is not really in it lol
this is a car one anyway
I would talk to someone who has done programmable fuel injection on a 600 as they will have the curve info from a stock set up to point you in the right direction.

[Bert]

I am looking on 3d ignition map trying gsxr600 and crf150r
But as they have poppet valves my heart is not really in it lol
this is a car one anyway
I would talk to someone who has done programmable fuel injection on a 600 as they will have the curve info from a stock set up to point you in the right direction.

Yea found a few 600 options and tried them out. Then just hacked up something that seemed to work.
Yea well not a two banger but fun learning none the less.

[mr bucketracer]

I am looking on 3d ignition map trying gsxr600 and crf150r
But as they have poppet valves my heart is not really in it lol
this is a car one anyway
I would talk to someone who has done programmable fuel injection on a 600 as they will have the curve info from a stock set up to point you in the right direction.so you like to watch the racing as well:violin:

[husaberg]

so you like to watch the racing as well:violin:

sound down and youtube doohan era 2 stroke playing in back ground....

here is what you need to start direction wise it is I guess a drag race GSXR1000.

[Bert]

sound down and youtube doohan era 2 stroke playing in back ground....

here is what you need to start direction wise it is I guess a drag race GSXR1000.

Yea... Na.. Too mild, even the old thunderace (or what ever the 600 was called) was more aggressive than that. But cheers mate, reinforces my thought processes and resulting map we knocked up.

Quite surprised how much advance there is.

[husaberg]

Yea... Na.. Too mild, even the old thunderace (or what ever the 600 was called) was more aggressive than that. But cheers mate, reinforces my thought processes and resulting map we knocked up.

Quite surprised how much advance there is.

on that curve I posted, at low throttle I was, but then again it would not matter as it would not be there once it was opened. Or are you meaning on your map?
Be careful with Yamaha stuff they are poos, plus the 5 valve head needs Mondo advance. They use to need to run 50 plus degrees on the old FZR's.
You made me think but it was Thundercat wasn't it.

[Bert]

on that curve I posted, at low throttle I was, but then again it would not matter as it would not be there once it was opened. Or are you meaning on your map?
Te careful with Yamaha stuff they are poos, plus the 5 valve head need Mondo advance.
You made me think but it was Thundercat wasn't it.

Na my maps tame currently, but yea most of the Yamahas are nutty...

[speedpro]

The Ecotrons system uses either the VE load map or the TPS load map to determine the engine load. Which method is used at what RPM versus TPS % is determined in another table. As previously stated there is no "point" at which the system switches from one to another but rather the final figure is weighted by one table or the other more or less depending on values in this table. That load is used to determine the ignition advance used using another table of load versus rpm. It does not use a direct TPS versus rpm table to determine the ignition angle.

This makes sense when you think about it. The throttle position at times has little relevance to the engine load and cannot be used alone as a reliable indicator of engine load and therefore ignition advance requirements. This is more pronounced at lower revs where in the Ecotrons system the maps give more weight to the VE table which relates to the MAP value and the TPS is ignored. In the lower performance engines such as the Honda clones the TPS map is only used when the TPS is over 95% and at high revs(relatively)

[mr bucketracer]

GSVR's life is over and mine is to:devil2:he has bought us out for a dollar

[mr bucketracer]

bla bla bla

[Pumba]

GSVR's life is over and mine is to:devil2:he has bought us out for a dollar


GSVR said he went down on robert taylar

You hit the home brew a bit early tonight?

[Grumph]

GSVR said he went down on robert taylar

Mildly interesting, if true..

Re ignition maps for TPS. The early Yamaha 5V singles had a carb with TPS. While the advance curve for the 5V stuff is a little odd - more advance in the midrange than you'd expect cos of poor mixture distribution - the relationship between the curves should help.
Now the problem may be finding the info...at one time the only way to see Yam advance curves was in the factory manual which was only issued to dealers...It helped to be on good terms with the local agent.

[mr bucketracer]

You hit the home brew a bit early tonight?gsvr is here and told the true , ok the home brew started 4 hours ago when i got told my wifes car was over 3 times the amount to fix and now i have to do it dam it . my spelling is bette now i'm drunk, whats with that

[Bert]

gsvr is here and told the true , ok the home brew started 4 hours ago when i got told my wifes car was over 3 times the amount to fix and now i have to do it dam it . my spelling is bette now i'm drunk, whats with that

Arrggghhh that explains a few things...
I'll give ya a call later on.

[mr bucketracer]

the man from uncle has taken over :lol:

[mr bucketracer]

Arrggghhh that explains a few things...
I'll give ya a call later on.everything has gone wrong

[husaberg]

the man from uncle has taken over :lol:

Spell check button is top left with the A/A...............

[Bert]

the man from uncle has taken over :lol:

http://41.media.tumblr.com/7b3b201599974892ae835727e8f078f0/tumblr_ncbb9bdsqS1qajffno3_500.jpg

[mr bucketracer]

http://www.ebay.com/bhp/man-from-uncle-dvd
who can buy me this , i will pay you

[mr bucketracer]

Spell check button is top left with the A/A...............i madde spell cheak:gob:

[husaberg]

i madde spell cheak:gob:

llllllllllllllllllllllllllllllllllllllllllllllllll llllooooooooooooooooooooooooolllllllllllllllllllll lllllllllllllllllllllllll

[F5 Dave]

. . .
I'll give ya a call later on.
He would have been talking in brail by then.

[TALLIS]

ok the home brew started 4 hours ago when i got told my wifes car was over 3 times the amount to fix and now i have to do it dam it . my spelling is bette now i'm drunk, whats with that

Now I seem to remember telling you that would happen! once uve fixed that one ive got one hear you can start on... GPR ford escapes... nice.

[mr bucketracer]

Now I seem to remember telling you that would happen! once uve fixed that one ive got one hear you can start on... GPR ford escapes... nice.gpr ford escape ..good for toeing the big trailer . the guy said he has to pull the engine out to do the job now ..somone else on a thread said you don't .. think i will just get my lifting crane togetter and do it my self .. my 150 is still making 21-22 hp so god knows whats wrong..4 hours on the dyno and got no where. no where in the world . fell like flaging the meeting

[seymour14]

gpr ford escape ..good for toeing the big trailer . the guy said he has to pull the engine out to do the job now ..somone else on a thread said you don't .. think i will just get my lifting crane togetter and do it my self .. my 150 is still making 21-22 hp so god knows whats wrong..4 hours on the dyno and got no where. no where in the world . fell like flaging the meeting

Sorry to say, but I have flagged it. Going in a new direction in life.

Sold a bike today, and am selling the rest as well.

Thanks for some cool times while it lasted.

[mr bucketracer]

Sorry to say, but I have flagged it. Going in a new direction in life.

Sold a bike today, and am selling the rest as well.

Thanks for some cool times while it lasted.thats the 3thd time you have flaged it:lol:

[TZ350]

.. my 150 is still making 21-22 hp so god knows whats wrong..4 hours on the dyno and got no where. no where in the world . fell like flagging the meeting

I understand your frustration, missing ponies, happens to us too, the little buggers are good at hiding when you really want them, but they usually show up again at teatime.

306306

[TALLIS]

gpr ford escape ..good for toeing the big trailer . the guy said he has to pull the engine out to do the job now ..somone else on a thread said you don't .. think i will just get my lifting crane togetter and do it my self .. my 150 is still making 21-22 hp so god knows whats wrong..4 hours on the dyno and got no where. no where in the world . fell like flaging the meeting

Mate.. I think you may just be paranoid of those new leathers! Well if I beat you, u can have my bike.... you'll have to give it back tho ha ha

[TALLIS]

Sorry to say, but I have flagged it. Going in a new direction in life.

Sold a bike today, and am selling the rest as well.

Thanks for some cool times while it lasted.

Sorry to hear, so close to ni too....

[Bert]

Sorry to say, but I have flagged it. Going in a new direction in life.
Sold a bike today, and am selling the rest as well.
Thanks for some cool times while it lasted.

Have you been on Scotty's grumpy juice buddy?
That's a bloody big step in the other direction from Saturday night - where you said you were going to smash me...


Sorry to hear, so close to ni too....
He will be there (he might be kicking and screaming)..:spanking:

[F5 Dave]

Sorry to say, but I have flagged it. Going in a new direction in life. . .
Danger ballet?
Porno hockey?

[koba]

Copper cooling fins on the RGV125, If all this copper and some ducting does the job I hope to make well over 30+ reliable hp with a good spread of power. I am also looking at using dihydrogen monoxide, the poor mans octane booster, as a fuel additive for combustion control. It will take a bit of clever chemistry but I think I have the basic principles for producing a stable mixture with 91 pump fuel sorted. I have a 4 channel temperature data logger to keep track of things, so it should be interesting.

Sorry, I've been too busy to bite at your threat of watercooling.

Chomp.

[TZ350]

Thank you for noticing .................. :D

[Grumph]

Thank you for noticing .................. :D

The average suburban - and most rural - sevice stations have mastered the blend....

Don't know about performance but it significantly improves the profit percentages.

[Rick 52]

Sorry to say, but I have flagged it. Going in a new direction in life.

Sold a bike today, and am selling the rest as well.

Thanks for some cool times while it lasted.

Sorry to hear mate, you were missed this weekend

Thanks so much for the very cool trophy :)

[mr bucketracer]

the ktm turns over but looking down the plug hole the piston is not moving ...so take a guess (-;

[Bert]

the ktm turns over but looking down the plug hole the piston is not moving ...so take a guess (-;

Having not seen it nor discussed, I'm guessing the piston has cracked around at the little end/pin...

:weep:

[mr bucketracer]

Having not seen it nor discussed, I'm guessing the piston has cracked around at the little end/pin...

:weep:did not think of that one , i thought snaped the rod low in the engine

[FastFred]

the ktm turns over but looking down the plug hole the piston is not moving ...

Those dang unreliable two strokes ........ wait is the KTM a 2T????? :scratch:

Sorry couldn't resist .... still the KTM is a great bike and looks formidable on the track.

[mr bucketracer]

Those dang unreliable two strokes ........ wait is the KTM a 2T????? :scratch:

Sorry couldn't resist .... still the KTM is a great bike and looks formidable on the track.trouble been it feels like a 2 stroke on the track , kind of half and half

[F5 Dave]

Well I did resist (glass houses , throwing stones etc)


did not think of that one , i thought snaped the rod low in the engine
Rods seem to like to cut their way out. My YZ100 piston broke as B suggested.

[koba]

Until I broke it I must say it is the fastest bucket I've ever ridden.
It's a fucking monster.

Seriously!

[koba]

The feel is incredible, so responsive.
I was able to cruise up to some pretty fast bikes and just hose them on the straight.

Once it's refined a bit more I think the goal posts will be significantly further away than they have been.

I'll try to edit some on-board to show it. (This will take a while).

[TALLIS]

Until I broke it I must say it is the fastest bucket I've ever ridden.
It's a fucking monster.

Seriously!

So has mrbucketracer sent you the acc details to set up the automatic payment? Or was it a works ride contract i saw you sign at the pits?:bleh:

[TALLIS]

Or just get one of these! take the engine out and bin the frame?
At least the future of 4 stroke buckets looks bright!306523306524

[mr bucketracer]

it has snaped the rod , had to be tested so all good

[kel]

I was able to cruise up to some pretty bikes and just hose them on the straight.

Fixed it for you (got rid of that extra word you had mistakenly included)

[Bert]

Fixed it for you (got rid of that extra word you had mistakenly included)

Rough....:bleh:

[mr bucketracer]

Rough....:bleh:seen them 4 prity bike engines were built by me

[koba]

it has snaped the rod , had to be tested so all good

Bugger! that normally ends in a mess, how's it all looking inside?

[mr bucketracer]

Bugger! that normally ends in a mess, how's it all looking inside?with what i can see its just got the odd mark so all ok , just need to find a rod kit that is better than what was in it as its a wast of time running what was in it if its only going to last that long.. may have to get he bro to make conrod ... seymore are you there lol help help

[Bert]

with what i can see its just got the odd mark so all ok , just need to find a rod kit that is better than what was in it as its a wast of time running what was in it if its only going to last that long.. may have to get he bro to make conrod ... seymore are you there lol help help

Seymore Seymore....

Solid Ti block could be ordered...

[seymour14]

Can't a guy crawl off and die in peace?

Fire it my way, I will bring the powers of Mordor to bare on it. You shall not pass....

Anyway, have been convinced to come out of retirement, the boys have broken so much shit in one round, someone has to do something about it.

Congrats to all from last weekend, it looked a lot of fun, will post up some of Reg's stuff on the weekend.

I need a :hug:

[husaberg]

Seymore Seymore....

Solid Ti block could be ordered...

I see Athena do a 65mm 13.4:1 piston for them.......
Two piece rod? (prior to it breaking)
I am sure there would be something in the Arias or Cariillo catalogue or the Aussie crowd.
I have posted what materials they all use including the grade of Ti the Cornish ones were

[mr bucketracer]

the big end is even smaller than a nc30-fzr400 which is what i was going to replace it with

[mr bucketracer]

Can't a guy crawl off and die in peace?

Fire it my way, I will bring the powers of Mordor to bare on it. You shall not pass....

Anyway, have been convinced to come out of retirement, the boys have broken so much shit in one round, someone has to do something about it.

Congrats to all from last weekend, it looked a lot of fun, will post up some of Reg's stuff on the weekend.

I need a :hug:welcome back:spanking:

[Grumph]

the big end is even smaller than a nc30-fzr400 which is what i was going to replace it with

So what are the rod dimensions ? I'll accept an approximation of CtoC given the circumstances...

[mr bucketracer]

So what are the rod dimensions ? I'll accept an approximation of CtoC given the circumstances...93mm centre to centre peiceing it together , small end 15mm , bigend 29mm ,shells 1.5 thick so 26mm with them ...good if you can help (-:

[Grumph]

93mm centre to centre peiceing it together , small end 15mm , bigend 29mm ,shells 1.5 thick so 26mm with them ...good if you can help (-:

Sorry - closest to that I've seen would be a honda industrial motor - or my air compressor...

Most of the 600's are over 100mm ctoc, the 400's as you've found are bigger in the bigend...don't know about the 250/4's. Suzuki GSX250 twin?
Speedpro got spare rods from his cut down 250 four ?

Grab some shafting from a Caterpillar and start filing...

[mr bucketracer]

is there a site out there that shows size's or makes to order , 250 twin maybe the go

[husaberg]

Sorry - closest to that I've seen would be a honda industrial motor - or my air compressor...

Most of the 600's are over 100mm ctoc, the 400's as you've found are bigger in the bigend...don't know about the 250/4's. Suzuki GSX250 twin?
Speedpro got spare rods from his cut down 250 four ?

Grab some shafting from a Caterpillar and start filing...

I have a 3ln in bits here......... They are tiny............pretty sure 14mm pin

[husaberg]

93mm centre to centre peiceing it together , small end 15mm , bigend 29mm ,shells 1.5 thick so 26mm with them ...good if you can help (-:

whats the VT250 I have one of those here somewhere.......but they are 16mm pin

[mr bucketracer]

whats the VT250 I have one of those here somewhere.......but they are 16mm pinthere even bigger than the 400s

[Yow Ling]

didnt take too long to find the weak link, fxrs are still king for another day

[husaberg]

there even bigger than the 400s

Don't worry so much re the big end of the rod as you can get thicker bearings or sleeve the rod to suit your bearing.
question is why did it snap is there still oil supply to the big end?

[mr bucketracer]

Don't worry so much re the big end of the rod as you can get thicker bearings or sleeve the rod to suit your bearing.
question is why did it snap is there still oil supply to the big end?was thinking if you could sleeve it, bigend feels fine , koba was riding it and dont think he was pushing as hard as i would , video koba (-;

[mr bucketracer]

didnt take too long to find the weak link, fxrs are still king for another dayyou are right there but seen this thing went so well of the cufe i need to sort it

[husaberg]

was thinking if you could sleeve it, bigend feels fine , koba was riding it and dont think he was pushing as hard as i would , video koba (-;

fzr250's are def 14mm pin

[mr bucketracer]

fzr250's are def 14mm pinand as a guess weaker than what was in it

[husaberg]

and as a guess weaker than what was in it

no idea but they are jewel like

here is a link if you can accept that they will need sleeving in the big end or a bush in the pin end (most carrillos used to anyway.. )and I don't know your width ?

http://www.cp-carrillo.com/Downloads/Catalogs/tabid/82/Default.aspx

the rods are near the end page 65 on

[Grumph]

If you can find something with the right c to c length, resizing the big end aint hard. Used shells which fit, bored to the right ID for the KTM shells and hand cut the notches. Used to be able to get adaptor shells for small journal Chevs to fit the big journal block.
Given a choice, i'd always bronze bush the small end anyway.
If you do go this way, I'd do a judicious hand lightening of the rod - clean it up and blend radii etc, Polish and shot peen after.
When i put a Yamaha rod in the Aermacchis, I clean it up and lighten it then polish and shot peen. No probs...

[Bert]

93mm centre to centre peiceing it together , small end 15mm , bigend 29mm ,shells 1.5 thick so 26mm with them ...good if you can help (-:


no idea but they are jewel like

here is a link if you can accept that they will need sleeving in the big end or a bush in the pin end (most carrillos used to anyway.. )and I don't know your width most carrillos used to anyway..

http://www.cp-carrillo.com/Downloads/Catalogs/tabid/82/Default.aspx

the rods are near the end page 65 on

Well looking through that list it seems the zx600r is your closest option
Top of the green...
16mm pin offers up the option for the wiseco pistons used in the FXRs.

306633

[seymour14]

Third race from last weekends racing. Look out for the fun at the lapping point. Regan's video.


http://youtu.be/5K5ySh0pcMw

[F5 Dave]

Essorright in the traffic huh? Good choices.

[seymour14]

Race two. A new star rises...


http://youtu.be/UUPeMoeYdC8

[Bert]

It's good to have you back Seymour

[koba]

video koba (-;

This might take some time...

I'll get something up though.

[mr bucketracer]

This might take some time...

I'll get something up though.even if its just a lap or 2

[mr bucketracer]

If you can find something with the right c to c length, resizing the big end aint hard. Used shells which fit, bored to the right ID for the KTM shells and hand cut the notches. Used to be able to get adaptor shells for small journal Chevs to fit the big journal block.
Given a choice, i'd always bronze bush the small end anyway.
If you do go this way, I'd do a judicious hand lightening of the rod - clean it up and blend radii etc, Polish and shot peen after.
When i put a Yamaha rod in the Aermacchis, I clean it up and lighten it then polish and shot peen. No probs...maybe i should just get a stardard rod and polish - shot peen it , making one is the only option i have otherwise

[Grumph]

maybe i should just get a stardard rod and polish - shot peen it , making one is the only option i have otherwise

Planning a long sea voyage ? Burt M used to take a box of files and a small clamp on vice with him. By the end of the voyage to the states, he'd have a set of rods ready for finish machining. You'd need a chunk of Caterpillar axle shafting though and that's pretty rare nowadays....

[mr bucketracer]

Planning a long sea voyage ? Burt M used to take a box of files and a small clamp on vice with him. By the end of the voyage to the states, he'd have a set of rods ready for finish machining. You'd need a chunk of Caterpillar axle shafting though and that's pretty rare nowadays....bert should of got a cnc (-; , need to look up the best steel but this is nz )-; might just buy one and take the chance

[mr bucketracer]

what is the higher cause that breaks rods , to much power , to meany rpm , down changes that make more rpm , pooly made rods , to heaver pistion for the rod .etc ( bad luck ) lol . :brick:

[husaberg]

what is the higher cause that breaks rods , to much power , to meany rpm , down changes that make more rpm , pooly made rods , to heaver pistion for the rod .etc ( bad luck ) lol . :brick:


As do the the Cornish and Carrillo ones Lozza..............:scratch:


The interesting thing is that the MMC ones are run direct on the crank-pin.They reputedly last for a seasons racing.
So at 900 euro the $1430 NZD or $1136 Aussie beer tokens(plus vat and freight as well) those 4 strokes sure are cheap to run......




http://www.ret-monitor.com/articles/wp-content/uploads/2009/05/mmc-table.jpg

I have posted the last 4 attachments before but they include the use of MMC sleeves shame they are to big 68mm plus.
The cost was far more reasonable than the rods but still much more than a alloy sleeve or iron.
[B]



Some other Aussie ones

I guess they did read the same articles as posted above.
MMC seem to be one of the fashionable materials these days. With selected rods available for the 4 stroke crowd
http://www.mxcomposites.com/con_rod.php
The MMC calipers that AP used to do were ridiculously light.



Carrillo

Not sure it happen exactly the same these days or even the ownership is the same. I had an idea they were now part of the conglomerate that owns wiesco etc

My father still walks with a limp from a aluminum alloy rod breaking on him over 25 years ago.
So what was the engine single cylinder aluminum alloy rod. (not an Enfield either Stephen)
Virtual chocolate fish to the first correct answer.
blar blar blar click on the arrows for the materials.....
4340 Carrillo
mcv Argo
Ti-6 AL-4v crower Titanium and Cornish rods be aware ti stretches a lot.......

[mr bucketracer]

blar blar blar click on the arrows for the materials.....
4340 Carrillo
mcv Argo
Ti-6 AL-4v crower Titanium and Cornish rods be aware ti stretches a lot.......ok 4340 used in carrillo rods , thanks

[koba]

what is the higher cause that breaks rods , to much power , to meany rpm , down changes that make more rpm , pooly made rods , to heaver pistion for the rod .etc ( bad luck ) lol . :brick:

Bearing in mind I'm no engineer...

I'm guessing the piston is heavier?
That would increase the force on the rod, although increasing speed increases the force a lot faster. (At least thats what my school teacher told me)
I think doubling the mas doubled the force and increasing the speed was by a factor of 4 or something.

I don't think 'too much power' exists, it's probably that the rod couldn't handle the force generated by a psiton of that weight at the revs it was pulling.

I'm pretty sure I wasn't too harsh on the downchanges, although mechanical over-rev would have to stress it a lot more.

Grumph?

[koba]

Ahh, this is interesting to work out.

force = mass x acceleration.

Acceleration can be worked out with some scary looking math:
http://www.codecogs.com/library/physics/kinematics/velocity-and-acceleration-of-a-piston.php

I don't have time to rip in to it right now but that's worth a look.

It'd be interesting to see the change in force from more weight and more revs.

There is bound to be an accepted guideline of how-much-is-too-much.

[koba]

I guess the weight would have to be the piston, pin, clips rings, little end and the rod - or the top of the rod only perhaps?

[mr bucketracer]

Bearing in mind I'm no engineer...

I'm guessing the piston is heavier?
That would increase the force on the rod, although increasing speed increases the force a lot faster. (At least thats what my school teacher told me)
I think doubling the mas doubled the force and increasing the speed was by a factor of 4 or something.

I don't think 'too much power' exists, it's probably that the rod couldn't handle the force generated by a psiton of that weight at the revs it was pulling.

I'm pretty sure I wasn't too harsh on the downchanges, although mechanical over-rev would have to stress it a lot more.

Grumph?it snaped at the bottom of the rod so all makes sence what you have said , im getting another rod and lighting the small end ,bore out the small end just a little bit , even though the piston is light a bit here and there should help , the fxr rod is very light to this one and they dont seem to have problems , we put the rod under a hardness tester and reads 108 to a fzr600 rod been 105 . so not much in it

[husaberg]

it snaped at the bottom of the rod so all makes sence what you have said , im getting another rod and lighting the small end ,bore out the small end just a little bit , even though the piston is light a bit here and there should help , the fxr rod is very light to this one and they dont seem to have problems , we put the rod under a hardness tester and reads 108 to a fzr600 rod been 105 . so not much in it

Comparing it to FZR600 rods that have a reputation for being carrot like?

[mr bucketracer]

Comparing it to FZR600 rods that have a reputation for being carrot like?yes they are long so you think if they last with all that weight it should be a walk in the park with the ktm . think the early fzrs run the bigends a lot so i was told , the fzr 400 rod is so close to size its not funny

[F5 Dave]

Earlier FZR600s had longer stroke but used to break rods in racing I seem to remember.

[Grumph]

yes they are long so you think if they last with all that weight it should be a walk in the park with the ktm . think the early fzrs run the bigends a lot so i was told , the fzr 400 rod is so close to size its not funny

i have the advantage of you in that the FZR600 we raced in pre 89 - very successfully till Kev bloody sold it - had race kit rods fitted..
Big end and shank all same same as std but the small end was slightly meatier and it was bronze bushed. They looked as though they were factory shot peened too.

Without seeing a pic of the KTM rod, if it's broken just above the big end, I'd pick poor design as the cause. Probably insufficient meat blending the eye to the shank. Cleaning up surface blemishes and shot peening will definitely help here.

If you do eventually do a rod from scratch the best way - as done in ChCh anyway - is waterjet cut from sheet then CNC the bores and the sides profile. Finally go down front and back to create the H section. For a bolt up bigend, you'd machine the joint faces and dowel it together and machine it as an assembly.

[koba]

it snaped at the bottom of the rod so all makes sence what you have said , im getting another rod and lighting the small end ,bore out the small end just a little bit , even though the piston is light a bit here and there should help , the fxr rod is very light to this one and they dont seem to have problems , we put the rod under a hardness tester and reads 108 to a fzr600 rod been 105 . so not much in it

Yeah, it would be a delicate balance there, the piston pin that led to Rich's big blowup at Tokoroa had a slight flaw in it and couldn't cope once they lightened it.
It'd be bloody good to be able to X-ray or MRI it like some people can!

[Grumph]

Ahh, this is interesting to work out.

force = mass x acceleration.

Acceleration can be worked out with some scary looking math:
http://www.codecogs.com/library/physics/kinematics/velocity-and-acceleration-of-a-piston.php

I don't have time to rip in to it right now but that's worth a look.

It'd be interesting to see the change in force from more weight and more revs.

There is bound to be an accepted guideline of how-much-is-too-much.

Irving gives a worked out example of 54X54 with a piston weight of 6OZ - probably close to what is in the KTM.
Inertia load on the small end is around 2100 pounds at 12000 RPM.
If you work out the smallest cross section area of the rod and reference the yield point of a good steel, the rod doesn't have to be particularly large section to take the loads...but it should be shaped right, ie good blending radii. And a good finish so as not to have any stress raisers.

[Grumph]

Yeah, it would be a delicate balance there, the piston pin that led to Rich's big blowup at Tokoroa had a slight flaw in it and couldn't cope once they lightened it.
It'd be bloody good to be able to X-ray or MRI it like some people can!

Go and see the reconditioners who do big diesels. Glen Durie here in ChCh bought Mace Engineering's old magnaflux machine when they wanted bigger (2 meter long cranks!!) He does a lot of competition crank and rods. Just done a GSXR1000 set for me...

[seymour14]

I will make them, how hard can it be? :facepalm:

[husaberg]

I will make them, how hard can it be? :facepalm:

water jet its step by step in the articles I posted esp when someone has access to a pretty flash cnc and a flash skill set.
Isn't about time we all seen the carnage rod pics though.......

[mr bucketracer]

i will post some pics of the ktm with other rods buy it , i been told grain structures from round to plate can be quite diffient for making rods (whats the best)

[husaberg]

i will post some pics of the ktm with other rods buy it , i been told grain structures from round to plate can be quite diffient for making rods (whats the best)

have a read of the links the mvp is available in certified bar in suitable sizes..
bugger I am going to have to attach them aren't I?

[Bert]

i have the advantage of you in that the FZR600 we raced in pre 89 - very successfully till Kev bloody sold it - had race kit rods fitted..
Big end and shank all same same as std but the small end was slightly meatier and it was bronze bushed. They looked as though they were factory shot peened too.

Without seeing a pic of the KTM rod, if it's broken just above the big end, I'd pick poor design as the cause. Probably insufficient meat blending the eye to the shank. Cleaning up surface blemishes and shot peening will definitely help here.

If you do eventually do a rod from scratch the best way - as done in ChCh anyway - is waterjet cut from sheet then CNC the bores and the sides profile. Finally go down front and back to create the H section. For a bolt up bigend, you'd machine the joint faces and dowel it together and machine it as an assembly.


I will make them, how hard can it be? :facepalm:

Can I come to the workshop when you do it??

Really want to see this project roll out.

I've posted this before but if you can handle the Italian it's an interesting series to watch.


http://youtu.be/I-2rJtnkYq4

[mr bucketracer]

i do like the argo rods as it has bolts so can finsh the start of the neck nicey . dad was saying he would use p20 the next step better than 4340 . never heard of mcv plate so may look it up to see if you can get it here

[TALLIS]

So have you ordered a std rod for a template?

[husaberg]

i do like the argo rods as it has bolts so can finsh the start of the neck nicey . dad was saying he would use p20 the next step better than 4340 . never heard of mcv plate so may look it up to see if you can get it here

Arrow rods are 4340 as well...

[Grumph]

Arrow rods are 4340 as well...

You don't need anything better than 4340. Go further down the high strength route and you lose ductility and it can get brittle.

If you're going to use capscrews from underneath, don't let the threads break out onto the rod shoulder as they're immediate stress raisers. Been there with GSXR750 WN kit rods...still got pics of the wreckage.

[mr bucketracer]

getting the 100 twin ready hopefully for tam , it running but a bit of work still needed , need to gear it for 3 gears as we know the gear box is not that great

[F5 Dave]

Be great to see it again. Rvif I'm too fast maybe I could be convinced to ride it;)

[mr bucketracer]

Be great to see it again. Rvif I'm too fast maybe I could be convinced to ride it;)you are to old . i'm going to smash you even if i have 21 ponys:lol: i have nick on my side now

[TALLIS]

I suppose I need to give Dave the options, I'll break either his clutch hand or his throttle hand... word of advice tho, I think Ull miss your throttle hand for other things too Dave. :sweatdrop

[mr bucketracer]

I suppose I need to give Dave the options, I'll break either his clutch hand or his throttle hand... word of advice tho, I think Ull miss your throttle hand for other things too Dave. :sweatdroplmao he will have a no stroke:devil2: everybody better come to be with the fun

[F5 Dave]

Gee all I wanted was a ride of your bike, no need to get all Sopranos. :-)

[mr bucketracer]

Gee all I wanted was a ride of your bike, no need to get all Sopranos. :-)ha ha just having fun, theads getting a bit boring of a late . dont know what to do about the water pump , looking at fitting the old one off the rev counter drive but dose not seem right

[F5 Dave]

Or use the one off the 50 for the time being.

I like road shift thanks and lube the clutch cable.

[TALLIS]

I like road shift thanks and lube the clutch cable.

Are you expecting to have problems with your own bike?

[F5 Dave]

So far so much. But a 2 stroke twin, that'd be some freaky bucket.

[koba]

I think I'll lay low on this one...

[Bert]

http://youtu.be/IIxcQr-eglE


Yes it sounds nice.....



I think I'll lay low on this one...

Yip.:niceone:

[mr bucketracer]

307318first run up with the 100twin , no sezing up this time . 1mm larger stingers so good of the gas ..27hp 5 runs in a row , thought it was the pipe killing the rpm but now thinking its the 1989 rgv cdi box? just need to finsh putting back together now

[F5 Dave]

Nice so the power falls or stops at 12,000? Looks like some more hiding after that. So MB50 barrels but MB pistons lose their tips any where past 12000 or RD pistons which require mods

[mr bucketracer]

Nice so the power falls or stops at 12,000? Looks like some more hiding after that. So MB50 barrels but MB pistons lose their tips any where past 12000 or RD pistons which require modsit just stops flat , it still has the mb pistons in it , they do flake kind of thing . i cleaned the tops of the pistons up in the lath to see if would stop that

[mr bucketracer]

going of the net the rev counters of rgv go to 12.5 but in saying that most road bikes dont rev as high at what it says

[TALLIS]

That power curve seems like it's heading up up and away. With afew more rpm who knows. There's something to be said about reliability tho. Should put some of that fuel we were using last night in it :facepalm:

[mr bucketracer]

That power curvr seems like it's heading up up and away. With afew more rim who knows. There's something to be said about reliability tho. Should put some of that fuel we were using last night in it :facepalm:i would like to fatten the hole curve up , reving it out not under load sounds good but on the dyno it runs rich in the mide range then all hell breaks loose lol . yes that drink may run well in it (-;

[F5 Dave]

Mb rings are 1.5mm thick. The tips jump off and power goes flat if over revved. Aftermarket may be the go if you get keen. Else keep revs where the are.

[mr bucketracer]

Mb rings are 1.5mm thick. The tips jump off and power goes flat if over revved. Aftermarket may be the go if you get keen. Else keep revs where the are.these pistons come from germany but still 1.5 thick , if i can get the bike going ok i will look for something better or else just a show pony for the odd round

[F5 Dave]

I used to run RD pistons but there were two types and they discontinued the 1.2mm ring type + there were a heap of mods to do.

[mr bucketracer]

is the rd piston standard the same diameter as the mb piston standard

[husaberg]

is the rd piston standard the same diameter as the mb piston standard

Scott have a look here
http://www.vrm.se/ go to the piston page.
Open up google translate unless you can read Swedish.

PROX Honda MB / MT 50 Standard original piston

PROX original scooter piston for standard bore 39mm .
Overall Height 50.60 mm
Height to the piston edge of 46.60 mm
Center bolted to the upper edge of 23,50mm .
Center bolt to the bottom of 23,10mm .
2 piston rings made ​​of cast iron 1.5 mm high .
Piston pin Dimensions 12x31,50mm .
Piston Ring Locking kl.7 and at the fifth
Order number 01.1003 STD

There is a few that share the low deck height of the mb
with 1mm rings
plenty more if you the deck height is not so important.

Barikit Bidalot Racing Piston 40,30mm.P - 426-1S

Barikitkolv made ​​by Bida Lots specifications for engines,
with bore 40.30 mm .
Kanoonsmidig and lightweight piston for limitless racing !! ; =)

Total height 45 mm.
Height to the piston edge 43 mm
Piston diameter 40.25 mm .
Distance from the center piston pin to piston top edge 23 mm .
Piston pin Dimensions 12 x 33 mm .
A Chrome Molly Ring of 1mm .
Piston Ring Locking clock 6th
Piston pin locking supplied

[F5 Dave]

From ailing memory the RD was OK for the under 53cc rule on std 40mm and first maybe 2nd oversize as yam did 0.25 steps. Course the 100 rules are more restrictive. Perhaps we should campaign for a 106.5cc oversize. No hidden agenda. . .

Had to move ring peg. Use thrust washers and cut skirt depending on rod size.

[TZ350]

307318first run up with the 100twin .. 27hp 5 runs in a row.

That is very impressive, another interesting and super special bike from GPR .... :niceone:

[mr bucketracer]

From ailing memory the RD was OK for the under 53cc rule on std 40mm and first maybe 2nd oversize as yam did 0.25 steps. Course the 100 rules are more restrictive. Perhaps we should campaign for a 106.5cc oversize. No hidden agenda. . .

Had to move ring peg. Use thrust washers and cut skirt depending on rod size.thats the promblem with this ,gt125 bottom end with standard mb 50 pistons only just puts this within the rules , what is the max 100cc oversize ? has it changed form years ago ..not looked into it for 2 strokes

[mr bucketracer]

That is very impressive, another interesting and super special bike from GPR .... :niceone:thanks rob , not to bad off the cuff , your bike is looking like its getting there to

[F5 Dave]

104 never changed, unlike the 4stroke rule which has gone up 3 times. Just saying.

[husaberg]

It will never happen Dave those 100cc two strokes are just to fast, Look at all the GP results they are loaded to the gunnels with 2 strokes.
Even if the MNZ did allow to go to 108 or 111cc The four stokes and the 2t 125's (who have access to plenty of suitable)pistons would just demand more cc's anyway.
Then someone would try and attach an amendment to allow something else like Alcohol fuel.

[Grumph]

It will never happen Dave those 100cc two strokes are just to fast, Look at all the GP results they are loaded to the gunnels with 2 strokes.
Even if the MNZ did allow to go to 108 or 111cc The four stokes and the 2t 125's (who have access to plenty of suitable)pistons would just demand more cc's anyway.
Then someone would try and attach an amendment to allow something else like Alcohol fuel.

Oh bitter, very bitter....

Don't know how much commonality there is between the T90 twin and the 125. If the 90 crank is a drop in, there's a possible 100 w/c option. There used to be a few running in buckets way back when...

[husaberg]

Oh bitter, very bitter....

Don't know how much commonality there is between the T90 twin and the 125. If the 90 crank is a drop in, there's a possible 100 w/c option. There used to be a few running in buckets way back when...
Yes it is bitter but that is unfortunately the statue quo with regards to the piston situation for the 100cc 2 strokes.
re the t90/125 They share the same stroke My t90 has t125 pistons in it, the sleeve is plenty thick enough. I think the stinger had bigger carbs.
Scotts is a GT125 though.
The Wolf is pretty rare now. Not to mention 40 years old, shame to see any more of them busted up for buckets, not to mention they are piston port and have a 5 speed.

[mr bucketracer]

the 4 strokes had to go up , having 20hp 4 strokes with 25hp 2 strokes would not be right , i think everything is fair now , running alcohol in 125 air cooled 2 strokes would be just cheating , i'v seen enough of them that run fine as they are , just down to the rider , if the cc's went up say 5cc just let all f4 bikes go up ...simple

[F5 Dave]

T engine is a terrible choice. 5 speed, as wide as a barn, overly complex and iron 2 transfer barrels. Mine came from chch as an ex bucket. Its going the other way as a road bike. One day. Would have been finished by now if the 100 hadn't absorbed so much time fecking about with piston and crank work a rounds.

[mr bucketracer]

bloody electric water pumps)-; stoped and over heated engine , 5 ponys gone , hope it somthing simple without having to put new rings in it

[Bert]

307318first run up with the 100twin , no sezing up this time . 1mm larger stingers so good of the gas ..27hp 5 runs in a row , thought it was the pipe killing the rpm but now thinking its the 1989 rgv cdi box? just need to finsh putting back together now

Choice. That's a good result. Alway though that thing would produce good numbers.

Yes it could be the CDI box, I've got another one sitting here if you want to have a play? I think it's off a SP but would need to check serial numbers...
Or maybe time to try an ignitech on it.


bloody electric water pumps)-; stoped and over heated engine , 5 ponys gone , hope it somthing simple without having to put new rings in it

Ass... Again.. Time for a decent waterpump. Or casting our own twin....