i have been researching this allot
easy way to get reverse... add large electric starter motor from diesel truck to gear welded to rear drive shaft, been done...
hard way, remove the hayabusa gears from the gear box housing, create a custom output shaft to go into any rwd gearbox you want..
http://www.motoiq.com/magazine_articl ... hell-we-are-thinking.aspxi have seen 600hp hayabusa engines (turbo charged)
the main thing is from what i have read, the hayabusa clutch is a reduced ratio clutch (6:1 or something), so you gotta replace it with one that is:
a) strong enough to handle the increased weight
b) one that doesnt have a reduction ratio
I am interested to see this thing actually run flat out, make some hard launched and skids.. before i get my hopes up, but some guys with MK1 golfs and Lotus 7's etc use this swap allot with great results..