apart from the audi engine what else?

just about to embark on the install.

before i do is there any other engine i should consider?

duratec…would it be cheaper? and more horses?

and cant get the evo engine out of my head…280 bhp standard!!!

Mazda turbo
f20c
hyabusa
bike type V8
alfa v6
rover turbo
wankel

List is endless really it just depends on how much you want to chuck at it.