Originally Posted by n2xlr8n
While it is true that a higher compression engine will in fact use less fuel than its lesser compressed twin, I'd venture to say that going from 8:1 to 9:1 would not make a substantial difference.
i don't see why it shouldn't be more fuel friendly, 1 point more compression coupled with avcs should make quite a difference especially during off boost driving.
what about power delivery?? with a good 9to1, its gonna be alot nicer and faster getting boost than a usdm. will i be able to get close to that kind of response with a BB turbo (vf34)??
so BB bearing turbo VS 9to1 CR and avcs. who wins in response??