NZ F4 & 5 GP 2014 questions [Archive]

Bert

18th January 2014, 00:33

Dates for the coming year

Te Puke NI round still to be confirmed and Easter at Roy's hill for the NI series on top of these

......
08-09/03 GP at Tokoroa
.......

(all the above are at Mt Wellington except for the Tokoroa GP)

AMCC date thread.

Am I reading this correctly.
The NZ F4 GP is on the 8/9 March?
That's only just over a month away yet the bull shit hasn't started...

Second Question:
Is AMCC going to test out the Special Event Licence rule???

koba

18th January 2014, 07:30

Shit talk.
MNZ Licence.
17 tooth front sprocket.
Horsepower.

Skunk

18th January 2014, 07:38

No way I can make that. Just before nationals at Taupo. Development class is open for buckets. Long track...

If it ain't smokin' - it's broken.

koba

18th January 2014, 07:45

No way I can make that. Just before nationals at Taupo. Development class is open for buckets. Long track...

If it ain't smokin' - it's broken.

Adding to the shopping list above...

mr bucketracer

18th January 2014, 08:01

Adding to the shopping list above...did you win lotto:msn-wink:

koba

18th January 2014, 10:17

did you win lotto:msn-wink:

I wish!

Taller gearing is just about going to take a lotto win too!

Can you cut 420 sprockets down to 415?
Think I'm going to make both bikes totally 415, it's a mission to do but should be best in long run seeing as I have RS rims.

Bert

18th January 2014, 12:15

I wish!

Taller gearing is just about going to take a lotto win too!

Can you cut 420 sprockets down to 415?
Think I'm going to make both bikes totally 415, it's a mission to do but should be best in long run seeing as I have RS rims.

I've managed to suck him into grinding a few down for me.
But I thought the RS sprockets could fit on the MB??

richban

18th January 2014, 12:24

Stink. Sort of committed to the nationals. That will take all coin and then some.

kel

18th January 2014, 12:44

I wish!

Taller gearing is just about going to take a lotto win too!

Why do you need taller gearing? Tokoroa uses the same super short gearing as Mt Wellington, for me this a 12 front 52 rear. I was actually thinking of getting a 53 rear sprocket to gear down ever so slightly.
Rich does the GP clash with the Nationals? if not find the cash as my victory without beating you will feel almost hollow!

mr bucketracer

18th January 2014, 13:39

richban

18th January 2014, 19:27

Rich does the GP clash with the Nationals? if not find the cash as my victory without beating you will feel almost hollow!

Does not clash just can"t spend the extra time and dollars away. As for beating me. Yeah NAH not a chance. I have just found bags of power hiding in the carb. It will be interesting tomorrow on track.

kel

18th January 2014, 21:02

I have just found bags of power hiding in the carb.

And I've found bags of talent from landing on my head.
Piston has been ceramic coated, cylinder and head have been coated with heat dispersant, mid race map has been programmed etc etc
And then there's the bark busters (fire with fire and all that)

koba

20th January 2014, 06:27

I've managed to suck him into grinding a few down for me.
But I thought the RS sprockets could fit on the MB??

Have to Double Check that !

Was going to use CR80/85 420 cut to 415 as they are MB sized.

Desire for more fron teeth is from combination of low primary ratio in the engine and large sprocket sizes on the back of my wheel, using RS rims will lessen this as I can then go to a lower tooth count on the rear but it will give me the most options.

Currently I'm tall enough but don't have enough intermediate steps; have to run too tall rather than too low.

koba

20th January 2014, 06:38

Why do you need taller gearing? Tokoroa uses the same super short gearing as Mt Wellington, for me this a 12 front 52 rear. I was actually thinking of getting a 53 rear sprocket to gear down ever so slightly.
Rich does the GP clash with the Nationals? if not find the cash as my victory without beating you will feel almost hollow!

My power runs from 8k-10k with a bit of overrev.
Engine has low primary ratio.

Currently on 14/46 which is too high, need more steps to get lower without loosing 1 full tooth off the front.

F5 Dave

20th January 2014, 12:52

I probably need to start a new barrel.

Is it it too early to say. ; oh well, next year?

koba

20th January 2014, 13:11

I probably need to start a new barrel.

Is it it too early to say. ; oh well, next year?

Old barrel this year and new one next?

kel

20th January 2014, 13:42

I probably need to start a new barrel.
Excellent, thats F5 Dave and Richban out! Half a dozen more and its all mine :devil2:

richban

20th January 2014, 13:45

Excellent, thats F5 Dave and Richban out! Half a dozen more and its all mine :devil2:

But you would still have to complete 40 laps on your bike and actually stay on. Don't like your chances. O-|<

kel

20th January 2014, 14:16

But you would still have to complete 40 laps on your bike and actually stay on. Don't like your chances. O-|<

:Oi:. I've only had 4 offs in the last 2 meetings and the bike survived a solid 34 laps before melting :weird:.

koba

20th January 2014, 14:20

:Oi:. I've only had 4 offs in the last 2 meetings and the bike survived a solid 34 laps before melting :weird:.

Looks like you've overtaken me in the 2 races I've hated winning the most!

Crashing isn't actually that bad, Just hate melting engines.

jasonu

20th January 2014, 14:38

Excellent, thats F5 Dave and Richban out! Half a dozen more and its all mine :devil2:

I could come 2nd...:second:

But you would still have to complete 40 laps on your bike and actually stay on. Don't like your chances. O-|<

This might be my big chance :first:

jasonu

20th January 2014, 14:40

I probably need to start a new barrel.

Is it it too early to say. ; oh well, next year?

http://www.kiwibiker.co.nz/forums/showthread.php/104668-Will-I-get-my-100-ready-in-time-for-Taupo :facepalm:

mr bucketracer

20th January 2014, 15:29

I could come 2nd...:second:

This might be my big chance :first:have to turn up first:drinkup:

F5 Dave

20th January 2014, 19:16

Have to turn up AND not get too pissed the night before. Not that I'm a shining example mind.:laugh:

F5 Dave

20th January 2014, 19:21

Old barrel this year and new one next?
Well the old barrel has set one lap record and possibly shared another in the past two weeks so it's got a chance, but it was so much more at the start of the practice of the BOB where I was playing silly buggers. To be there again would be great, but there is so much more to go I'm sure.

jasonu

21st January 2014, 15:41

have to turn up first:drinkup:

Have to turn up AND not get too pissed the night before. Not that I'm a shining example mind.:laugh:

Not much point then. That was always half the fun of Buckets.

RDjase

21st January 2014, 19:10

Have to Double Check that !

Was going to use CR80/85 420 cut to 415 as they are MB sized.

Desire for more fron teeth is from combination of low primary ratio in the engine and large sprocket sizes on the back of my wheel, using RS rims will lessen this as I can then go to a lower tooth count on the rear but it will give me the most options.

Currently I'm tall enough but don't have enough intermediate steps; have to run too tall rather than too low.

You can borrow some of the RS spare sprockets if you want, have a good range in fronts and rears, enough for Roys Hill to Bonneville lol

koba

21st January 2014, 19:16

You can borrow some of the RS spare sprockets if you want, have a good range in fronts and rears, enough for Roys Hill to Bonneville lol

Cool! That reminds me I meant to hit someone else up that had some rears that re surplus.

I'll let you know if I need to bludge (Not that far along yet, it's a while away)

RDjase

21st January 2014, 19:30

Cool! That reminds me I meant to hit someone else up that had some rears that re surplus.

I'll let you know if I need to bludge (Not that far along yet, it's a while away)

I think there is 34 to 40, 14 to 17 in stock, havnt unpacked the van yet.
I am sure I have had a RS sprocket on a XL125 engine, thinks its the same spline as FXR and KR kwaka too. Maybe wrong tho

koba

21st January 2014, 20:00

I think there is 34 to 40, 14 to 17 in stock, havnt unpacked the van yet.
I am sure I have had a RS sprocket on a XL125 engine, thinks its the same spline as FXR and KR kwaka too. Maybe wrong tho

From this:
http://www.kiwibiker.co.nz/forums/showthread.php/151174-Help-RS125-NF4?p=1130353876#post1130353876

And comparing
JTF548 with JTF253

Here:

http://www.jtsprockets.com/catalogue

It looks like the RS one is going to be a lot bigger...

JTF253 is the type I plan to use but have cut to 415.

RDjase

21st January 2014, 20:05

From this:
http://www.kiwibiker.co.nz/forums/showthread.php/151174-Help-RS125-NF4?p=1130353876#post1130353876

And comparing
JTF548 with JTF253

Here:

http://www.jtsprockets.com/catalogue

It looks like the RS one is going to be a lot bigger...

JTF253 is the type I plan to use but have cut to 415.

I have got them out of the van now, grants old loncin engine is in the shed, will go and see if a RS will fit it, no idea were the XL engine is at the mo

koba

21st January 2014, 20:11

I have got them out of the van now, grants old loncin engine is in the shed, will go and see if a RS will fit it, no idea were the XL engine is at the mo

Just went to the van myself, confirmed that this is what I run:
http://www.jtsprockets.com/fileadmin/code/images/large/jtf274.jpg

RDjase

21st January 2014, 20:20

Just went to the van myself, confirmed that this is what I run:
http://www.jtsprockets.com/fileadmin/code/images/large/jtf274.jpg

Smaller centre, bugger

Found the KR engine and the Loncin, RS fits both and the KR sprocket is a JTF548-13. Thought I had done this before and remembered after reading the thread you posted

koba

21st January 2014, 20:30

Haha, oh well!

Just did some workings, I already knew but max speed I can get with current setup and off the shelf sprockets (Which I have) is 116kph in 6th at 12000rpm.

It's not pulling 12K at the moment so would realistically be about 105kph. Ain't doing Taupo long track any time soon...

F5 Dave

22nd January 2014, 10:23

You can use a CT70 sprocket on the MB, brought one from ebay aus 16T 420 that came down to 415. I ran it with a 46 at BOB but it was undergeared so I'm looking at ordering a 43 or 42

cotswold

24th January 2014, 16:05

ok before I get .y full license can we have numbers of people definitely entering the f5 gp. I would expect the two dave's but who else?

Henk

24th January 2014, 16:08

We left the upgrade licence off the entry form. Kamil is onto this and the updated form should be on the MNZ website at some stage. This means just a $50 upgrade so if you have a club licence don't get the full one just yet.

F5 Dave

24th January 2014, 16:09

I have a club licence which I will $50 one time upgrade to full for the event. hoping AndrewA from down here will be keen. Also my mate Darrin will get his back to form after getting keen riding the foulstroke twice in the last couple of weeks

Gigglebutton

24th January 2014, 16:29

ok before I get .y full license can we have numbers of people definitely entering the f5 gp. I would expect the two dave's but who else?

I have been working on my 50. Hope to have it done in time

jasonu

24th January 2014, 17:23

mr bucketracer

24th January 2014, 18:05

Gossamer??????motel room only good for 2 but you could push the single bed closer:spanking:

F5 Dave

24th January 2014, 20:00

Gossamer??????
Yeah, he even showed up in new leathers last week

Henk

24th January 2014, 20:20

Yeah, he even showed up in new leathers last week

Did he bring you a gimp ball as well?

mr bucketracer

24th January 2014, 20:29

Did he bring you a gimp ball as well?nobody biteing tonight:Police:

Henk

24th January 2014, 20:38

nobody biteing tonight:Police:

You always bring your own.

Pumba

24th January 2014, 21:17

Any one feel like an apple?

Henk

24th January 2014, 21:37

Any one feel like an apple?

Cheap bastard.

TZ350

25th January 2014, 03:45

Just went to the van myself, confirmed that this is what I run:
http://www.jtsprockets.com/fileadmin/code/images/large/jtf274.jpg

292938

http://www.trademe.co.nz/motors/motorbikes/parts-for-sale/clutch-gearboxes/auction-688050297.htm

I am not sure about the center hole diameter on this one but I have seen auctions on Trademe with lists of sprockets and they had both 17mm and 20mm centers. Might be worth asking this vendor (Scoterpartsman) the question.

mr bucketracer

25th January 2014, 19:40

any south islanders coming to this gp ? just about time for a fun poll

koba

25th January 2014, 21:51

any south islanders coming to this gp ? just about time for a fun poll

Good point!

Starting another thread to make this more visible...

Perhaps my sprocket talk...

koba

25th January 2014, 21:52

292938

http://www.trademe.co.nz/motors/motorbikes/parts-for-sale/clutch-gearboxes/auction-688050297.htm

I am not sure about the center hole diameter on this one but I have seen auctions on Trademe with lists of sprockets and they had both 17mm and 20mm centers. Might be worth asking this vendor (Scoterpartsman) the question.

All good, I've ordered a set of 420 fronts, I may get it running with these for a bit, if the rear works out.
Then I'll get them cut down once I'm on Full RS, or RS rims on the NSR.
I will eventually go to 415 on everything.

mr bucketracer

26th January 2014, 07:38

Good point!

Starting another thread to make this more visible...

Perhaps my sprocket talk...
you know l have hunderds of new sprockets , lots of honda fronts