A few of you will probably have seen Keith Murrays Dialynx Audi Quattro, if not take a read:
http://fourtitude.com/features/Featu...-construction/
Would it be possible to do the same reduction to a YB engine?
Say with liners, pistons and a new crank?
Wouldn't need to rev to 10k or have 600bhp to be fair anything over 330bhp would probably suffice.
Cheers Rich