bitsilly
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| posted on 2/7/10 at 04:32 PM |
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Hayabusa internals- what BHP before upgrade
Is there any concensus on what BHP a busa can take before internals (other than clutch springs) need to be upgraded.
I'm really talking turbo or supercharger rather than anything else.
Cheers
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phoenix70
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| posted on 2/7/10 at 05:36 PM |
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Yes, what it's come out of the factory with 
I know a guy who is well up on bikes and he is doing the works on his busa before putting the turbo on ( forged crank, rod, pistons) .. Also know a
kitcar owner who put a turbo on his busa and guess what... it went pop. (spat a rod)
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Paul TigerB6
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| posted on 2/7/10 at 05:47 PM |
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I wouldnt try to turbo something as expensive as a Busa without a set of H-beam conrods and forged low compression pistons to be honest. There's
more power but loads more torque also with the turbo conversions - even with low boost
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bitsilly
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| posted on 2/7/10 at 05:52 PM |
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I ask because I am drooling after this:
http://www.pistonheads.com/SALES/1803603.htm
which has my dream engine, but I spoke to the builder and the internals are absolutly standard, and TTS apparantly told him they would be OK up to
300bhp.
Thing is, I would use it mostly for track days, current owner uses it only on the road.
Thoughts??
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bitsilly
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| posted on 2/7/10 at 05:53 PM |
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Sorry, he did reduce the compression with a metal gasket.
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franky
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| posted on 2/7/10 at 06:25 PM |
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Tts do not have the greatest rep, holeshot do!
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scootz
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| posted on 2/7/10 at 06:37 PM |
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I know of a couple of Busa's running 250-ish bhp on standard internals without any problems.
It's Evolution Baby!
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INDY BIRD
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| posted on 2/7/10 at 06:43 PM |
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buy something already done like this all reliavle power 1000's spent i should know its mine,
tempted???????
http://www.pistonheads.com/sales/1837610.htmlink
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bitsilly
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| posted on 2/7/10 at 06:53 PM |
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I will if you can price match!!
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imp paul
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| posted on 2/7/10 at 08:37 PM |
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make sure you buy the parts from some 1 like hole shot racing jack or Tim blakemoor racing or big cc/ ray debben if you go down the turbo road as some
people will rip you off like this good luck with your engine build tim and jack are very very good chaps all the best paul
 
Description
YOU KNOW WHO
YOU ARE
[Edited on 2/7/10 by imp paul]
[Edited on 2/7/10 by imp paul]
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kjouk
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| posted on 5/7/10 at 07:59 PM |
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quote:
Originally posted by bitsilly
Thing is, I would use it mostly for track days, current owner uses it only on the road.
Thoughts??
Holeshot recommend different setups for cars & bikes. The theory is that in a car you will be on boost much more than on a bike and hence need the
uprated internals.
I would not underestimate the difference between street and track use, I can barely get mine above 50% throttle on street use but the track it is
quite different.
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dilley
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| posted on 5/7/10 at 10:33 PM |
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quote:
Originally posted by franky
Tts do not have the greatest rep, holeshot do!
Holeshot and good rep???? Not wiyh me!
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bitsilly
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| posted on 6/7/10 at 04:37 PM |
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I missed out again, he sold it to a dealer. Will keep an eye out for it but I guess it will be a tad more!!
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clutch_kick
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| posted on 6/7/10 at 08:50 PM |
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Could I suggest that you use a de-compression plate instead of a thicker gasket. If you take the correct precaution with fueling and ignition, i
don't think you'd have any trouble running about 7psi boost, which should see you over the 200 bhp marks easy. Should keep you happy
until you set aside enough money to upgrade the engine internals, and go wild on the boost.
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