Originally Posted by Sticky
An 11.5:1 car should not be boosted either right? Ever take a look at the E46 M3 forced induction scene?
What about the 11.8:1 Carrera S? Several superchargers out for it making it quite formidable.
A high compression motor just won't take as much boost without detonating on pump gas, that is all. It is all in the tuning, it can and will be boosted and make incredible power at low PSI. You are not going to need 100 octane unless you want to push the limits.
With boost it is going to have emotion or whatever you call it. That is the beauty of it, you still have off boost power and response like you do know, but with an incredible top end. It is the best of both worlds.
You took the words right out of my mouth... people are boosting e46's like crazy and they are holding up extremely well.
Like sticky said yes a motor with less compression is more ideal but with more compression you just cant turn up the boost as much as the same motor with lower compression.
Just because a motor is high compression doesnt mean it can't take boost.