Thread: Hayabusha-turbo
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Old 25-03-2005, 08:32 PM
max_torque max_torque is offline
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It will be very interesting to see how this pans out!!!

i have a few questions:

1) a turbo motorcycle engine makes peak power at very high rpm (10krpm plus) where the time for charge burn is very rapid, so i can't really see detonation being a big issue. The light weight bottom end and crankcase / drivetrain components prevent you running mega boost at low rpm where Det is a problem? (normal large capacity turbos rely on big BMEP to make lots of torque at low (ish) rpm and hence make lots of power, turbo bikes still rely on rpm, after all a turbo 1 litre car might do say 150 to 200 bhp, a turbo 1 litre bike engine should be seeing 300)

2)On a car installation, approx 10kg of water injection hardware and full resevoir don't knock the pwr to weight ratio much, on a bike i suspect it will be a bigger reduction in accel / braking / C of G etc.


but on the positive side.

3) i guess there's not a lot of room for any aftercooling system on a bike, so maybe this is the big benefit?

Anywhichway, 300 bhp in a bike is probably about 150 too much!! lol!
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