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Author: Subject: A bike engine for my application
clutch_kick

posted on 30/1/06 at 09:04 PM Reply With Quote
hmmm if i find a Kawasaki 1200cc it would be a lot better for me. I've been told the agent for Kawasaki here is a very nice guy, and extremely helpfull for parts
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cossey
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Registered 5/12/05
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Building: a pile of bits that will someday be a fisher fury

posted on 31/1/06 at 12:14 PM Reply With Quote
quote:
Originally posted by clutch_kick
Hmmm ... ok ... well i'll plan things out on the Hayabusa gear ratios. Many thanks for the advice. 120 mph in 6th sounds pretty good to me, should be fun at the 1/4 mile

Can one change the final drive on a Sierra diff? ie .. go to a higher or lower ratio by changing the crown wheel and pinion?


if you keep it light a busa powered 7 will be very close to maxing out over the 1/4 mile if its limited to 120. it might be worth using a sierra 3.38 diff or a freelander 3.2.

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clutch_kick

posted on 31/1/06 at 04:37 PM Reply With Quote
is the Freelander diff LSD?
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NS Dev

posted on 2/2/06 at 02:10 PM Reply With Quote
quote:
Originally posted by smart51
replacing the pinion is very difficult, I'm told. I looked into combining my 3.62 LSD with a 3.14 diff to make a 3.14 LSD. I was told to swap the diff part and leave the pinion well alone.

[Edited on 30-1-2006 by smart51]


Cheeky answer coming up, no offence meant....... but that would be a unique trick!!!

You can't change one without the other!!!! (unless of course you meant change the crownwheel AND pinion and I read it a bit wrong!)

[Edited on 2/2/06 by NS Dev]





Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion retro car restoration and tuning

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smart51

posted on 2/2/06 at 03:46 PM Reply With Quote
The crown wheel unbolts from the differential gear set. You can take a differential gear (and viscous coupling if fitted) and fit them to the casing, crown wheel and pinion of another diff.

It is harder to take the pinion and crown wheel from one diff and fit to the differential gear, viscous coupling and casing of another.

My most sincere aplologies for not being fully clear

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mnr laptop

posted on 5/2/06 at 10:59 PM Reply With Quote
yep first zx12 we did was a nightmare, didnt get the fuel pump relay with the bike so ran a permanet feed ( big mistake ) ran fine for 5 mins then went into fault mode and immisions went sky high, this coupled with two faulty power commanders caused all sorts of problems, on marks we kept the pump relay and it was plain sailing, its like every first car we have done there are the little bits and pieces that test you then the second is straight forward

best regards

marc

NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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G.Man

posted on 6/2/06 at 10:04 AM Reply With Quote
And it's still running sweet, starts first turn of the key, idles smooth, and revs nice..



Just wish I could drive it now... damn cypriot customs..

lol





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clutch_kick

posted on 17/2/06 at 03:26 PM Reply With Quote
i found the ZX12R Gear ratios, and i'm using them in the Quaife gear calculator. Other then the Final Diff ratio, is there any other ratio i must include in the calculation?

Primary reduction ratio 1.596 ?
Final reduction ratio 2.556 ?

thanks.

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