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richban
22nd January 2010, 09:47
I was thinking this would be a good resource for everyone.

Lets everyone from around the country post up the lap record for there home track and who holds it. Other classes have them we should to.

Its doesn't have to be super official. Would be interesting and give people something to aim for.

Someone that is more onto it with KB could format in nicely.


What say you all Yeah nah, or Fuck Yeah.

Trudes
22nd January 2010, 10:26
Oh Fuck yeah!! Why not. Would be interesting to see.


I bet nobody can go slower than me at Kaitoke!! (reverse smack talk):bleh:

woodyracer
22nd January 2010, 10:50
i think mt welly is a 29.37 second's set by hayden fitzgerald, im not quite sure tho

Buckets4Me
22nd January 2010, 12:26
i think mt welly is a 29.37 second's set by hayden fitzgerald, im not quite sure tho


the 2009 2 hour has haden on 29.94
most of the top guys have done that
Nigel
Karl
Dave
Garry
+ others
and I believe that Jaden Hassan did a better superpoll than Haden

richban
22nd January 2010, 12:38
I might talk to Skunk and ask if this info can live on the Bucketracer nz site. In resources.

Kaitoke is Glen Skachill 42.2 I think, Will confirm later.

Henk
22nd January 2010, 14:56
Thought the fast guys at Mt welly were in the 27 region. Given the way lap scoring is done there I'm guessing that lap times may be hard to come by. Could be completely wrong of course.

hmurphy
22nd January 2010, 15:39
Hell yeah I like this idea!

ajturbo
22nd January 2010, 16:06
and if the guys can rig it so we can individual times also....... shit now that flies in the face of me not see the point of transponders at taupo... hahahahahahah

fi5hy
22nd January 2010, 16:52
I have glen at a 42.563 on 20/09/09 on the mylaps site at Kaitoke and me at 42.678 the little BASTARD

Pumba
22nd January 2010, 17:02
Dave Diprose would be the man to talk ti in Auckland (and probally for quite a few other places as well). I am sure I heard he had records going back 15 years.

ajturbo
22nd January 2010, 17:10
I have glen at a 42.563 on 20/09/09 on the mylaps site at Kaitoke and me at 42.678 the little BASTARD

well i heard you were getting old and slow... now YOU proved it....hahahahahah

richban
22nd January 2010, 17:13
Yeh well Nathanael Diprose must have the F4 Taupo time with the 1:26 something for the GP qualifying

bucketracer
22nd January 2010, 19:55
I think that lap records are interesting but for the also rans like myself, lap times of the guys near the front would be something to aim for. The top ten at each track would be very interesting.

sosman
22nd January 2010, 20:09
what about a full run down of whats mods they have done to also get that lap time!

Kendog
22nd January 2010, 21:59
I have glen at a 42.563 on 20/09/09 on the mylaps site at Kaitoke and me at 42.678 the little BASTARD
And he dropped that time when we were up there last (based on Skunks sideline stop watch)

Kendog
22nd January 2010, 21:59
I have glen at a 42.563 on 20/09/09 on the mylaps site at Kaitoke and me at 42.678 the little BASTARD
And he dropped that time when we were up there last (based on Skunks sideline stop watch)

Blackflagged
23rd January 2010, 13:35
Lap records are cloakwise or anti cloakwise? as they run both at Mt Welly.

richban
23rd January 2010, 14:16
one each way spoz.

Blackflagged
23rd January 2010, 15:11
one each way spoz.

I Concur - 1 definition - To agree with! ... i concur i agree for sure absolutely yes awesome right on word hell yeah ...

Kickaha
23rd January 2010, 16:07
And he dropped that time when we were up there last (based on Skunks sideline stop watch)

Sideline stop watches wont count for much with lap records, you need transponders or it's a waste of time

woodyracer
23rd January 2010, 16:18
yer, i got timed at the 2 hour by 2 people, one with a laser thing on me {dont know how they work} and the other person had a stopwatch, they both got completly different times.

koba
26th January 2010, 06:37
what about a full run down of whats mods they have done to also get that lap time!

It doesn't matter on most tracks, Fi5ys bike isn't powerful at all.

Kendog
26th January 2010, 12:22
Fi5ys bike isn't powerful at all.
What a horrible thing to say.

woodyracer
26th January 2010, 14:10
the fastest riders at mt welly have fairly stock bikes. Ive ridden tim frasers and its got power in the right places, it dosnt cough ect, but it aint realy quick its just well set-up. Im not sure about karls's bike or any of the JCR bikes.

ryanf062
26th January 2010, 16:15
I hold the lap record at waipawa on a borrowed bike. it is 21 second. done it with a transponder too!

woodyracer
26th January 2010, 16:37
21 second...haha thats one midget track

ajturbo
26th January 2010, 20:55
It doesn't matter on most tracks, Fi5ys bike isn't powerful at all.


What a horrible thing to say.

it is no faster than mine... the rider is the problem....

Buckets4Me
26th January 2010, 21:58
the fastest riders at mt welly have fairly stock bikes. Ive ridden tim frasers and its got power in the right places, it dosnt cough ect, but it aint realy quick its just well set-up. Im not sure about karls's bike or any of the JCR bikes.

the fastest riders have super fast bikes
Nigel duff comes to mind, rs frame with an rg150 sleved down to 100 and a supposed 26+ hp at the wheel

the JC bikes are all worked
and Tim has a hard time in a fair race against them (he dose much better when he has pole and they are 3 rows behind him)

so not to many STOCK bikes around sorry

jasonu
27th January 2010, 14:02
the fastest riders at mt welly have fairly stock bikes...

That sounds like crap.

woodyracer
27th January 2010, 14:10
That sounds like crap.

i know that, i did say "most", but the JCR bikes are heavily modded, the fxr's are pretty standard.

jasonu
27th January 2010, 15:54
i know that, i did say "most", but the JCR bikes are heavily modded, the fxr's are pretty standard.

Mate, maybe MAYBE one or two at best are not modded . That has always been the case and always will be.

Henk
27th January 2010, 16:23
Have to agree here. How many FXRs at Mt Welly still have the stock pipe and carb? not many at a guess. I know of at least one that has had serious work done.

woodyracer
27th January 2010, 16:32
gavin's bike is pretty modded, i know that. Id love to know all the stuff thats been done to the JCR bikes......man they go.

TZ350
29th January 2010, 20:14
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Fundamentally there is a simple rule about getting more performance out of a piston engine. Get it to consume more air (with the right amount of fuel) and it will deliver more performance. More air consumed per cycle will benefit torque, whereas more air in unit time will benefit power. Increasing just air or just fuel rarely achieves much unless the manufacturer got things badly wrong, which is rare. The ratio of fuel to air must remain in the right proportions for proper combustion although some over-richness at full throttle is quite usual as a means of lessening thermal loads on the engine (and catalyst). This may sometimes permit a slight increase in airflow alone to produce a small performance gain.

Those who think that hotter cams are always a good thing should take note - unless they intend to go on the race track. Although the surge as a hot cam starts to work might feel impressive it can be illusory because the torque is just climbing back to where it should have been all along.

This is all quite fortunate because it means that the starting point for more performance is relatively easy and inexpensive and there is no need to do things like swapping cylinder heads. Upgrading the induction, fuel and exhaust systems undoubtedly gives the most performance gain for the money spent. This is true even for racing although for such purposes we offer similar conversions with more bias towards high engine speeds.

Read it all here:- http://www.jagweb.com/aj6eng/technics.php

Number One
29th January 2010, 20:39
Cliffhanger record on a bucket. Sully60 and The Sled...3.40..............MINS :lol: :banana:

50bucketracer
21st April 2010, 17:16
Dave Diprose would be the man to talk ti in Auckland (and probally for quite a few other places as well). I am sure I heard he had records going back 15 years.
A rather late response sorry, but I actually have records going back to the first bucket GPs (1982). They are in Excel spreadsheet form but I could email to anybody interested if they provide contact details. I have fairly complete results of all national bucket GPs & the AMCC 2 hour races.

To me lap records have to be official - i.e. timed by the race organisers, not your best mate. There are accurate lap times available for the last 2 Taupo GPs & I have records of AMCC superpole times from when the GPs were held there & from all 2-hour races.

Here are the official superpole records for Mt Wellington (C = clockwise; AC = anticlockwise):
09 2H AC 29.94 Hayden Fitzgerald
08 2H C 30.64 Tim Fraser GP AC 30.1 Karl Morgan
07 2H AC 29.6 Nigel Duff GP C 29.48 Nigel Duff
06 2H C 30.8 Garry Cunningham GP AC 30.08 Nigel Duff
05 2H AC 29.79 Nigel Duff GP C 30.59 Karl Morgan
04 2H C 30.66 David Diprose GP AC 30.33 David Diprose
03 2H AC 30.9 Steve Diprose
02 2H no record
01 2H AC 31.39 Steve Diprose
00 2H C 31.6 Steve Diprose
No superpole in earlier years
As you can see there has been a very gradual improvement in times over the decade.

50bucketracer
21st April 2010, 17:30
Taupo GP official bucket lap records are:
2010 F4 GP 1m27.39 Daryl Cotton
2010 F4 Qualifying 1m26.25 Nathanael Diprose
2010 F5 GP 1m30.34 Nathanael Diprose
2009 F4 GP 1m29.84 Richard Ford (Richard was also fastest qualifier but with a slower time)
2009 F5 GP 1m33.38 David Trustrum (Dave did a faster time of 1m31.55 racing his 50 in F4)
2002 F4 GP 49.93 Jimmy Steadman (old track)
2002 F5 GP 55.49 Chris Sales (old track)

richban
22nd April 2010, 08:47
Taupo GP official bucket lap records are:
2010 F4 GP 1m27.39 Daryl Cotton
2010 F4 Qualifying 1m26.25 Nathanael Diprose
2010 F5 GP 1m30.34 Nathanael Diprose
2009 F4 GP 1m29.84 Richard Ford (Richard was also fastest qualifier but with a slower time)
2009 F5 GP 1m33.38 David Trustrum (Dave did a faster time of 1m31.55 racing his 50 in F4)
2002 F4 GP 49.93 Jimmy Steadman (old track)
2002 F5 GP 55.49 Chris Sales (old track)

Thats a good post gives everyone something to target for this years GP. The 1m26.25 Nathanael Diprose will be hard to beat. Do you have any info from before the restart I was looking but could not find any.

50bucketracer
22nd April 2010, 12:39
Thats a good post gives everyone something to target for this years GP. The 1m26.25 Nathanael Diprose will be hard to beat. Do you have any info from before the restart I was looking but could not find any.

You had to be quick to get Info from the initial aborted start of the F4 GP. 2 people actually got better times than recorded after the restart; you got 1m27.03 & Nigel Duff got another 1m26.2 like Nathanael. Unfortunately Nathanael's bike had broken a ring & destroyed the cylinder before the end of the first lap. I think he needs a new mechanic... Anyway that left the fastest 3 out of the restart. Roll on next GP!

Buckets4Me
22nd April 2010, 19:29
Thats a good post gives everyone something to target for this years GP. The 1m26.25 Nathanael Diprose will be hard to beat. Do you have any info from before the restart I was looking but could not find any.

watch those time's come a tubling tumbling down
Nigel will one day get a bike to run the whole day
Nathanael is sure to come back with a bike that's not and fully sorted
Dave D will be racing (as long as he stays of the mountain bike)
Avalon will hopefully have her own bike
Cully will have one that handles better
the guys from chrischurch might show up (to watch :) )
and the vacume cleaner may be back by then :)

and thats not saying anything about the welly croud that did so well last year

so this year is looking better than last already

richban
22nd April 2010, 19:30
You had to be quick to get Info from the initial aborted start of the F4 GP. 2 people actually got better times than recorded after the restart; you got 1m27.03 & Nigel Duff got another 1m26.2 like Nathanael. Unfortunately Nathanael's bike had broken a ring & destroyed the cylinder before the end of the first lap. I think he needs a new mechanic... Anyway that left the fastest 3 out of the restart. Roll on next GP!

Cheers for that I had been wondering what the race pace was like before my little off.

andrew a
22nd April 2010, 21:50
Lucky all those fast guys fell off or blew up. It ment that we could slow the pace down and make it that little bit safer!

Kickaha
22nd April 2010, 21:57
the guys from chrischurch might show up (to watch :) )

We might even send up some of our fast guys this time

koba
22nd April 2010, 22:29
You had to be quick to get Info from the initial aborted start of the F4 GP. 2 people actually got better times than recorded after the restart; you got 1m27.03 & Nigel Duff got another 1m26.2 like Nathanael. Unfortunately Nathanael's bike had broken a ring & destroyed the cylinder before the end of the first lap. I think he needs a new mechanic... Anyway that left the fastest 3 out of the restart. Roll on next GP!


Jeeze, Is that all!

My best time around there is ten seconds faster, admitedley on a streetstock but a well sorted bucket should be faster than a Streetstock!


2ND 157 MALCOLM NABBS SUZUKI RG 150 7 10m16.50 1m19.44 +2.51s




OK, maybe the timing was a bit hinkey in qualifying that year...

50bucketracer
22nd April 2010, 23:26
Jeeze, Is that all!

My best time around there is ten seconds faster, admitedley on a streetstock but a well sorted bucket should be faster than a Streetstock!


2ND 157 MALCOLM NABBS SUZUKI RG 150 7 10m16.50 1m19.44 +2.51s




OK, maybe the timing was a bit hinkey in qualifying that year...

Don't believe everything you see in print. That time came from December 2008 qualifying & if you look at the full laptime detail you will see that time timing system was only started part way through the first lap:
http://homepages.slingshot.co.nz/~marktime/rfiles/081228/PRAC09A.HTM
Many riders were similarly impacted. If you ignore the incorrect first lap, your best time was your final lap of 1m27.11 - still not bad - quicker than the buckets that year

koba
23rd April 2010, 09:40
Don't believe everything you see in print. That time came from December 2008 qualifying & if you look at the full laptime detail you will see that time timing system was only started part way through the first lap:
http://homepages.slingshot.co.nz/~marktime/rfiles/081228/PRAC09A.HTM
Many riders were similarly impacted. If you ignore the incorrect first lap, your best time was your final lap of 1m27.11 - still not bad - quicker than the buckets that year

SHHH! Don't tell everyone!


Yeah, I got a bit of a giggle looking at my qualifying time that would have been good on the F3 grid.

jasonu
23rd April 2010, 15:47
Thought the fast guys at Mt welly were in the 27 region. Given the way lap scoring is done there I'm guessing that lap times may be hard to come by. Could be completely wrong of course.

27's??? COBBLERS!!!

goose8
20th July 2010, 18:17
That lap record at mt welly is 29.2 ac and 29.6 c

richban
22nd August 2011, 18:00
Anyone know what the lap record for F4 is on manfield? Did a 130.472 on the weekend.

Str8 Jacket
22nd August 2011, 18:16
Anyone know what the lap record for F4 is on manfield? Did a 130.472 on the weekend.

Can you get that helmet back on yet? :)

Bert
22nd August 2011, 20:53
Can you get that helmet back on yet? :)

:laugh::laugh::laugh::laugh::laugh:

Well done Rich; The last race was a corker (and got the largest cheer for the day at the finish; from not only the fence but also upstairs)... good Birthday then!!

Shorty_925
23rd August 2011, 08:05
Anyone know what the lap record for F4 is on manfield? Did a 130.472 on the weekend.

Have a look at the link:

http://www.mylaps.com/results/showrun.jsp?id=1771989

Blair Robson & Tyler Lincoln were the only two on buckets.

Gigglebutton
23rd August 2011, 14:06
No mates, told me he had the record at Mt Welly. I'll see what he has to say about it.

Str8 Jacket
23rd August 2011, 14:32
No mates, told me he had the record at Mt Welly. I'll see what he has to say about it.

Who, Max W?

White trash
23rd August 2011, 15:46
Anyone know what the lap record for F4 is on manfield? Did a 130.472 on the weekend.

Saw that and thought "That's fucking flying on an FXR!"

Well done mate.

Henk
23rd August 2011, 16:30
Who, Max W?

No, Nigel Duff. Not sure that Max ever got kicked out the B grade.

richban
23rd August 2011, 16:37
Saw that and thought "That's fucking flying on an FXR!"

Well done mate.


Cheers
I would think it could do a 128 eazy with one of them skinny kids on it. Me = 100 kgs with my gear on. Racing gear that is.

RDjase
23rd August 2011, 18:37
Have a look at the link:

http://www.mylaps.com/results/showrun.jsp?id=1771989

Blair Robson & Tyler Lincoln were the only two on buckets.

That was really windy day, Tyler was on the rev limiter with 14 tooth front sprocket on the back straight and it wouldnt pull thru 5th on the front.

http://www.motorcyclesport.co.nz/index.aspx?ref=documents/ml/Manfeild Lap Records bikes.htm

Looks like some bloke Richard Ban did a 1.41 in November 2009, that name sounds familer for some reason :shit:

Looks like you have beaten your old record by 11 seconds, Great work mate:Punk:. Was cool to watch you dicing with Chappy and Aaron

I wonder if Tim Gibbes/Mylaps has a updated list (thats easier to read as well)
The Prolite record is old too, Seth Devereux broke it at the Nats this year and Sam Croft broke it again at round 3

RDjase
23rd August 2011, 18:41
http://www.motorcyclesport.co.nz/index.aspx?ref=documents/ml/Manfeild Lap Records bikes.htm




The link doesnt like getting copy and pasted.

It s in the my laps results section

richban
23rd August 2011, 19:36
Looks like you have beaten your old record by 11 seconds, Great work mate

I remember that day well. Wet with slicks and the dirtiest hangover. The day before on the track day in the sunshine the laps were around the 135 mark. Unofficial like.

richban
23rd August 2011, 19:39
The link doesnt like getting copy and pasted.

It s in the my laps results section

yeah looks like they need an update.

Yow Ling
24th August 2011, 21:00
Ruapuna full track I think Al Hoogie is around 1.56 Superbikes are 1.30 3.46 km

Hey Rich have you got any laptimes from last year?

F5 Dave
25th August 2011, 10:13
When we come down alone the most sophisticated timing we can do is "Hickedy-pickledy-one. . . " The sweeper usually happens at Hickedy-pickledy-eleven & I lose concentration as someone dives around the outside blocking the path past a fast starter slower cornerer.:confused:

Heck I still haven't organised sailing etc. Wanna take my bike down Rich?

richban
25th August 2011, 15:02
Ruapuna full track I think Al Hoogie is around 1.56 Superbikes are 1.30 3.46 km

Hey Rich have you got any laptimes from last year?



I could figger one from a video. It was shot early on in proceedings. At the end of the day we were all going quicker I will have a look.

richban
25th August 2011, 15:04
Wanna take my bike down Rich?


Still trying to figure that out. Will keep you posted. Might be a dash down for me as I have quite a bit of work coming up.

richban
25th August 2011, 15:12
Hey Rich have you got any laptimes from last year?

Had a quick look. On a quite clean lap was 58 ish. I was getting dropped a bit buy the 2 or 3 at the front about then, so they would have been going quicker. Get your stop watch out next dry meeting.

richban
3rd January 2013, 08:55
As its the first time we have had timing on at Tokoroa (I think)

Rick takes the honors with a 43.400

all4A50s
3rd January 2013, 11:06
Would be interesting to see the times now with noise restrictions being enforced.

richban
3rd January 2013, 11:53
Would be interesting to see the times now with noise restrictions being enforced.

Should make no difference at all. My bike is 91.9db and faster than ever. There is no reason any of the current bikes would be slower due to noise restrictions.

Henk
3rd January 2013, 13:12
More noise doesn't make more power. A lot of engines like a bit of back pressure. On the other hand, especially during longer races loud bikes make you tired faster, not sure why but it does seem to make a difference.

all4A50s
3rd January 2013, 13:40
Should make no difference at all. My bike is 91.9db and faster than ever. There is no reason any of the current bikes would be slower due to noise restrictions.


More noise doesn't make more power. A lot of engines like a bit of back pressure. On the other hand, especially during longer races loud bikes make you tired faster, not sure why but it does seem to make a difference.

My bike is a lot smoother with back pressure but needed to have the fuel map redun (thanks Ren) when we changed the exhaust. Now I just have ride it to it capability and stop nannering around on it.

Still seeing if the louder bikes have any timed difference will be an interesting exercise to prove/disprove if there was any point in letting the bike get that loud in the first place.

richban
3rd January 2013, 16:50
My bike is a lot smoother with back pressure but needed to have the fuel map redun (thanks Ren) when we changed the exhaust. Now I just have ride it to it capability and stop nannering around on it.

Still seeing if the louder bikes have any timed difference will be an interesting exercise to prove/disprove if there was any point in letting the bike get that loud in the first place.

I don't understand the term back pressure. In theory I thought the muffler is only there to simulate the end of the exhaust system and send a scavenging way back to the cylinder while keeping it quite. Lap times have nothing to do with how loud a bike is, its the way the bike is ridden. Poor tuning will effect lap times. Not sure what you are getting at. There is know proving / or disproving. You tune to the rules and thats that. I am sure I could make a loud bike that made a little better power with an open megaphone but no point coz it would then be illegal.


Anyway its about time we borrowed some transponders from the Kart club and recorded some laps. I am sure the old Kaitoki record has been smashed many times.

crazy man
3rd January 2013, 17:09
I don't understand the term back pressure. In theory I thought the muffler is only there to simulate the end of the exhaust system and send a scavenging way back to the cylinder while keeping it quite. Lap times have nothing to do with how loud a bike is, its the way the bike is ridden. Poor tuning will effect lap times. Not sure what you are getting at. There is know proving / or disproving. You tune to the rules and thats that. I am sure I could make a loud bike that made a little better power with an open megaphone but no point coz it would then be illegal.


Anyway its about time we borrowed some transponders from the Kart club and recorded some laps. I am sure the old Kaitoki record has been smashed many times.hi l want what your on:moon:

richban
3rd January 2013, 17:14
hi l want what your on:moon:

please explain then.

crazy man
3rd January 2013, 17:29
please explain then.l'm on monteith's golden lager but not as good as yours

richban
3rd January 2013, 17:36
l'm on monteith's golden lager but not as good as yours

Same brand but Pilsner.

crazy man
3rd January 2013, 17:41
Same brand but Pilsner.thats like losing 2 hp:nya:

richban
3rd January 2013, 18:01
thats like losing 2 hp:nya:

Spoz coz it does have 1 more %. Less back pressure though.

Rick 52
3rd January 2013, 20:24
As its the first time we have had timing on at Tokoroa (I think)

Rick takes the honors with a 43.400

Cheers Rich
Still very pleased with the win :cool: let's see what this weekend bring ..

TZ350
3rd January 2013, 21:03
Rick was realy riding the wheels of his bike, it would be interesting to have Av's times from the year before as it is hard to believe that anyone could peddle any faster than Rick was in that second race.

all4A50s
3rd January 2013, 21:14
I don't understand the term back pressure. In theory I thought the muffler is only there to simulate the end of the exhaust system and send a scavenging way back to the cylinder while keeping it quite. Lap times have nothing to do with how loud a bike is, its the way the bike is ridden. Poor tuning will effect lap times. Not sure what you are getting at. There is know proving / or disproving. You tune to the rules and thats that. I am sure I could make a loud bike that made a little better power with an open megaphone but no point coz it would then be illegal.

My understanding is back pressure comes from introducing a restriction to the exhaust to create turbulance. This changes the sound/pressure waves effecting the scavenging.

speedpro
3rd January 2013, 22:55
I always thought the "back pressure" thing was a load of crap. Then I built a bike and deliberately gave it some back pressure by fitting a Rajay exhaust pipe. It was a bit heavy but the back pressure perked the old Z1 up quite nicely.

The fact is that an internal combustion engine processes air and fuel passing through it and makes power. The more air and fuel that can be efficiently processed the more power they make. "Back pressure" will only reduce the amount of fuel and air passing through.

koba
3rd January 2013, 23:00
It seems there is an incorrect assumption made somewhere here that a an exhaust is always restricted by effective muffling...

richban
4th January 2013, 06:47
My understanding is back pressure comes from introducing a restriction to the exhaust to create turbulance. This changes the sound/pressure waves effecting the scavenging.

By definition it is supposed to hinder performance. Adding resistance to slow everything down just goes against everything I aim for in making my engine more efficient. If your pipe is way worng to begin with then maybe it might work. I haven't seen any moto3 bikes with reductions in the pipe at the muffler. Anyway each to there own.

all4A50s
4th January 2013, 09:00
By definition it is supposed to hinder performance. Adding resistance to slow everything down just goes against everything I aim for in making my engine more efficient. If your pipe is way worng to begin with then maybe it might work. I haven't seen any moto3 bikes with reductions in the pipe at the muffler. Anyway each to there own.

The way I can make sense of it is to liken it to when reverse cones are added to the end of expansion chambers and the sound waves being deflected back, creating a vacuum which aids in the scavenging of the exhaust fumes.

After talking to other CBR racers I am finding these engines perform better with some exhaust restriction, regardless of the exhaust make up.

Henk
4th January 2013, 10:23
All I know is that when I've had mufflers fall off the bike usually immediately starts to run like a bag of poo. This may be because it wasn't set up to run without one to start with.

cotswold
4th January 2013, 10:59
All I know is that when I've had mufflers fall off the bike usually immediately starts to run like a bag of poo. This may be because it wasn't set up to run without one to start with.

Not a bucket but still relevant, I had my super trap fall off my buell last week and it ran like a dog, lost all its torques and felt awful. The super trap has a closed off end and breathes out through a series of rings. It is pretty damn quiet and is only 10"s long

crazy man
8th January 2013, 07:48
Taumarunui lap record my regan griffiths ....24.324
thought l better put this he's been going on enough:sweatdrop

richban
8th January 2013, 08:00
Taumarunui lap record my regan griffiths ....24.324
thought l better put this he's been going on enough:sweatdrop

Good stuff. Some will need to collate all this not sure how. Short laps on that little track.

koba
8th January 2013, 20:56
Good stuff. Some will need to collate all this not sure how. Short laps on that fast little track.

Fixed it for ya.
It really is a track that is all about keeping insane corner speed.

crazy man
18th March 2013, 14:59
for the bro regan griffiths lap record at te puke at 42.955 . sound like Mt Wellington needs a update

koba
18th March 2013, 19:36
I think Tokoroa will be the first 'Away' track that will have transponder timing for a second time.

Rick's 43.400 looks to be the mark to beat.

kel
12th May 2013, 18:57
New anticlockwise record set at Mt Wellington today. Gary Cunningham set down a blistering 28.822. That was fairly early in the afternoon, he may have gone even faster?

crazy man
12th May 2013, 19:29
roys hill lap record by regan griffiths ..38.480

crazy man
12th May 2013, 19:33
nathanael diprose tokoroa lap record 42.227

crazy man
12th May 2013, 19:36
l think rich ban has the welly record just dont know what it is

richban
12th May 2013, 22:43
l think rich ban has the welly record just dont know what it is

Not sure if I do. All very unofficial. Might try borrow a transponder this weekend and see what real times we are doing.

goose8
13th May 2013, 14:29
New anticlockwise record set at Mt Wellington today. Gary Cunningham set down a blistering 28.8. That was fairly early in the afternoon, he may have gone even faster?
I think I got the clockwise record to 29.625 before the shock let go .

TZ350
13th May 2013, 18:37
I think I got the clockwise record to 29.625 before the shock let go .

Follow the link below, all the lap times etc are there.


Mt Wellington Round 7 Results and David Diproses summary for the series so far.

richban
15th June 2013, 14:11
Manfeild. Me with a 1:29.761

I reckon with a skinny kid on a fast bike you could se a 26 around there.

Str8 Jacket
16th June 2013, 10:01
Manfeild. Me with a 1:29.761

I reckon with a skinny kid on a fast bike you could se a 26 around there.

Good shit man!!!

F5 Dave
4th January 2014, 16:56
Taumarunui lap record my regan griffiths ....24.324
thought l better put this he's been going on enough:sweatdrop

First time here in about 6 years I finally broke to 23s. Well 23.97 but I better claim it before tomorrow.

mr bucketracer
21st April 2014, 17:14
roys hill lap record by regan griffiths ..38.480scott griffiths now has it at 38.421 tui lol (-; but rick ford stole it of me at 38.398 ...well done .. i had to have my 1 second of fame lol:killingme

FastFred
22nd April 2014, 06:47
Good one Scott, holding the lap record (even if it was only for a short time) Rick Fords bike???? I think he runs a TF or TS125 2T with a Tillotson pumper carb and RS chassis. The sharp end has some interesting bikes and very fast riders.

Rick 52
23rd April 2014, 17:45
Good one Scott, holding the lap record (even if it was only for a short time) Rick Fords bike???? I think he runs a TF or TS125 2T with a Tillotson pumper carb and RS chassis. The sharp end has some interesting bikes and very fast riders.

Very pleased with the lap record, I didn't think about lap times at the meeting, Scott you have ridden so fast this season you deserved a lap record.
Yea my bike is a very early 1989 RS should be on Wire wheels, Engine is a TF 125 with a TS gear box, the Kart carb works very well with the RS shock mount being just in the wrong place for a normal carb plus they are so easy to adjust with only two screws, last time on the dyno it had 23hp at the wheel and the bike weight is 76KG wet, The power is strong through the rev range, just what you need for Kart tracks Lots of the mods to make faster have been suggestions from TEEZEE from the ESE team.

mr bucketracer
23rd April 2014, 17:59
Very pleased with the lap record, I didn't think about lap times at the meeting, Scott you have ridden so fast this season you deserved a lap record.
Yea my bike is a very early 1989 RS should be on Wire wheels, Engine is a TF 125 with a TS gear box, the Kart carb works very well with the RS shock mount being just in the wrong place for a normal carb plus they are so easy to adjust with only two screws, last time on the dyno it had 23hp at the wheel and the bike weight is 76KG wet, The power is strong through the rev range, just what you need for Kart tracks Lots of the mods to make faster have been suggestions from TEEZEE from the ESE team.just think if all 3 of us going for the number 1 plate at that round , what a race it would be ! even though it did get close to that, regan just took it that bit easyer the pusy lol even though now there is the talk of another round ? guess he would of like to know that at the start of the round lol . close pass by be in the first race sorry but not that bad on camera .. you made sure in race 2 it not going to happen again lol good race! pushed my bike and fire up yesterday !! no idea why it stoped

koba
24th April 2014, 21:59
pushed my bike and fire up yesterday !! no idea why it stoped

I need to get my old nail up to pace and join the fun.

I know the pain, I thought my ignition was fired but is going fine now.
It must have all been the reed that it chewed up.

Mike K said he felt something hit him, maybe that was part of it.
I found some of it in the bottom of the crank case and there were plenty of fibres coating the exhaust port.

This weekends mission is to rework the barrel/head join for a spigot fit to keep things in place and avoid the :Punk: (Headbanging) action I had.

Hopefully will be going for Kaitoke on Sunday.

F5 Dave
8th May 2014, 12:29
Well not sure why I'm doing this but here you go for Mt Wgtn as of May 14:

Clockwise:

F4 - 28.970s by Nathanael Diprose on 4 May 2014 (round 6, qualifying 2)
F5 - 30.658s by Nathanael Diprose on 4 May 2014 (round 6, qualifying 2)

Sidecars - 34.652s by Rick Ford & Henk Zeeven on 13 Oct 2013 (round 4, race 1)


Anti-clockwise:

F4 - 28.822s by Gary Cunningham on 12 May 2013 (round 7, prelim 2)

F5 - 31.240s by Nathanael Diprose on 17 Jun 2012 (round 8, race 1)

Sidecars - 34.750s by Rick Ford & Henk Zeeven on 2 Mar 2014 (round 5, race 2)

kel
8th May 2014, 17:08
Do qualifying times count?

F5 Dave
8th May 2014, 18:03
Always have before.

CHOPPA
9th May 2014, 00:10
Do qualifying times count?

Not officially but its bucket racing so its not really official so I guess it does.

Might have to start marking tyres to stop everyone using qualifing rubber just to get the lap records though...

richban
9th May 2014, 09:56
Might have to start marking tyres to stop everyone using qualifing rubber just to get the lap records though...

Classic. More like marking them when they are 5 years old and unsafe.

F5 Dave
9th May 2014, 10:09
. .um that would exclude most of the field. heck I virtually never have tyres that new - Moneybags:angry:

jasonu
9th May 2014, 14:02
Classic. More like marking them when they are 5 years old and unsafe.

Fuck off 5yr old tires ARE brand new for buckets.

Rick 52
9th May 2014, 21:57
Fuck off 5yr old tires ARE brand new for buckets.

In C grade, times have changed ..

Henk
9th May 2014, 22:07
Time for golden boy control tyres?

chrisc
8th July 2014, 21:15
Aaron Hassan put down a 28.806 on Darren's RSFXR F4 bike and Nathaniel Diprose did a 30.486 on their F5 RS bike on Sunday going anti clock wise at Mt Wellington. Blistering!


I noticed there are some records and results up on the AMCC page, here: CLICK LINK (http://amcc.org.nz/index.php/menu-bucketracing/bucketracingnews.html)

https://farm3.staticflickr.com/2929/14623226883_654ae07f60_b.jpg (https://flic.kr/p/ohcRTr)

https://farm4.staticflickr.com/3894/14416755557_31597a10ca_c.jpg (https://flic.kr/p/nXXD9Z)

fixer
8th July 2014, 21:41
Quite correct Chris - Aaron Hassan managed a 28.806 on Sunday, breaking Gary Cunningham's previous record by a mere 16 thousandths of a second.

However ... Nathanael's F5 lap record was actually a 30.376 in race 1. He broke his own previous lap record by almost a second. Anyone prepared to bet against a 29 second F5 lap?

And ... Brenton Love and Kamil Chodor broke the Sidecar lap record by 0.7s with a 34.046.

All details on the AMCC website as you mentioned.

Tim

chrisc
8th July 2014, 21:43
Like Henk said yesterday, it wasn't a particularly warm track and we can be sure the times are going to continue to drop even further. Should be a fun and tough season!

Cheers for keeping that updated. Any idea where I can see the results of the November 2013 2 hour?

fixer
8th July 2014, 22:34
Like Henk said yesterday, it wasn't a particularly warm track and we can be sure the times are going to continue to drop even further. Should be a fun and tough season!

Cheers for keeping that updated. Any idea where I can see the results of the November 2013 2 hour?

Mylaps is your friendly results repository ... http://www.mylaps.com/en/events/976851

Tim

ajturbo
9th July 2014, 07:49
Pff..28.8? slow day in the office up there?

TALLIS
9th January 2016, 21:30
First time here in about 6 years I finally broke to 23s. Well 23.97 but I better claim it before tomorrow.

Sorry son, your just a boy now. 23.7 done by the honda copy steamroller. First real test.......

F5 Dave
10th January 2016, 05:52
Well done. I only had about 24hp then so it was inevitable.
Good to see the new bike running up well. Would have loved a go on it.

seymour14
10th January 2016, 08:35
Sorry son, your just a boy now. 23.7 done by the honda copy steamroller. First real test.......

Sounds really promising. Good luck for the racing, first Taumarunui, then the world!!! (Or at least Tokoroa....):laugh:

Sorry won't be coming to video, only got as far as Bunnythorpe and my shot rear tyre was washing out on the wet road, time to pull the pin and go home. Bloody rain.

mr bucketracer
10th January 2016, 17:29
Sounds really promising. Good luck for the racing, first Taumarunui, then the world!!! (Or at least Tokoroa....):laugh:

Sorry won't be coming to video, only got as far as Bunnythorpe and my shot rear tyre was washing out on the wet road, time to pull the pin and go home. Bloody rain.we ate grass all weekend

seymour14
10th January 2016, 17:54
we ate grass all weekend

One: Either you all fell off...

or Two: I have the GPR bank card in my wallet...

Thanks for reminding me!:facepalm:

By the way, how did it all go...apart from the forced dieting.

mr bucketracer
10th January 2016, 18:17
One: Either you all fell off...

or Two: I have the GPR bank card in my wallet...

Thanks for reminding me!:facepalm:

By the way, how did it all go...apart from the forced dieting.number 2 😉I got a win .no idea how and Nick did to.rod took out the last

richban
24th April 2017, 19:25
Hamish on his green crapper. 41.86. God knows what it would be if he had some HP.

seymour14
8th January 2018, 18:15
Taumarunui....23.509.

Is it time to build another green machine?:shifty:

TALLIS
11th January 2018, 17:20
No no No, let us all catch up frist... mite be awhile.

seymour14
12th January 2018, 18:15
No no No, let us all catch up frist... mite be awhile.

Arghhh, you shouldn't wait two days before replying, I've been busy...

F5 Dave
12th January 2018, 18:59
Triple exhaust port this time? Noice. How big is that exhaust port duct though? And/or does it take inserts?

seymour14
12th January 2018, 20:54
Triple exhaust port this time? Noice. How big is that exhaust port duct though? And/or does it take inserts?

Must admit that my concept is changing very little from Regan's bike, it proved to be not to bad on the first attempt. The exhaust insert can be seen in the middle of the picture, spigots into the exhaust stub with a variable blended circular to oval shape. Will try another shape combo to get a comparative dyno reading between engines. Somewhere I have another insert that remains circular right through, keen to know what the torque/hp readings will be for that too.

Most the change is in trying to get better heat reducing qualities with the fins on the barell. Couple of heads to fiddle with combustion and the likes. Little bit more work to go, we'll get there. I guess Scott knows he's up for another frame now...:niceone:

F5 Dave
13th January 2018, 06:10
Ahh I was looking at the sleeve on the right that was upside down and just saw a port above the transfer, missing the top and of course the front view.
Insert idea is a good one, tests will be mighty interesting though I suspect the effects on fueling may need a jet either way to optimise for the full comparison.

TZ350
13th January 2018, 06:20
Must admit that my concept is changing very little from Regan's bike, it proved to be not to bad on the first attempt. The exhaust insert can be seen in the middle of the picture, spigots into the exhaust stub with a variable blended circular to oval shape. Will try another shape combo to get a comparative dyno reading between engines. Somewhere I have another insert that remains circular right through, keen to know what the torque/hp readings will be for that too.

Most the change is in trying to get better heat reducing qualities with the fins on the barell. Couple of heads to fiddle with combustion and the likes. Little bit more work to go, we'll get there. I guess Scott knows he's up for another frame now...:niceone:

Great project, following it with a lot of interest. ......

seymour14
10th March 2018, 16:31
Edgecumbe...30.802 seconds.

Almost two seconds knocked off previous record.

Crikey...

F5 Dave
10th March 2018, 19:28
Who what when where?

I miss racing.

seymour14
10th March 2018, 19:55
Who what when where?

I miss racing.

Regan, last round of the North Island Series. A few people dropped the record during the day.

Worth making a Two Stroke F5!

F5 Dave
10th March 2018, 20:21
Ggiven some disposable now compared with what I thought was a good idea ten or so years ago. . .

richban
22nd March 2018, 17:14
Caleb A has the new record at Kaitoki. 40.9 Thats so fast. I think i should take most of the credit as I adjusted his handle bars before the race.

F5 Dave
22nd March 2018, 20:13
You're just like Erv yeah Rich?

chrisc
26th March 2018, 09:54
I did a 43.743 around Tokoroa in F5 on the weekend borrowing Nathanael's RS50. Unfortunately I couldn't get my RS50 repaired in time and he was nice enough to let me borrow his while he has a fractured pelvis from a 600 crash. It's only 0.1s under the previous lap record but I'll take it. I think there's another 0.4s in the record quite comfortably based on my GPS and previous days I've ridden Toke in practice on my own bike but that's for another day.

seymour14
26th March 2018, 10:31
I did a 43.743 around Tokoroa in F5 on the weekend borrowing Nathanael's RS50. Unfortunately I couldn't get my RS50 repaired in time and he was nice enough to let me borrow his while he has a fractured pelvis from a 600 crash. It's only 0.1s under the previous lap record but I'll take it. I think there's another 0.4s in the record quite comfortably based on my GPS and previous days I've ridden Toke in practice on my own bike but that's for another day.

Good on ya Chris, nice work! That's a time that will be hard to beat, but don't let that stop you doing it!

F5 Dave
26th March 2018, 11:53
Hey good on Ya. Pity you were riding for the opposition :innocent:
I'd be interested to know offline (ie don't clog this thread) how well it steered.