I don't think there is ever enough horsepower. But I went with the 2.9 Whipple and love the instead torque. Can't my foot out of it. Even though it's not my daily driver i have fun driving it every chance I get. Now I'm setting plans on going built.[/QUOTE
So you bought the 2.9L blower and had someone custom tune it?
if your not building a motor and dont plant on it 2.3 is fine but im finding out if i go to 9.5:1 comp ration i may need to switch to a 2.9 to get the power level i want
The 2.9 is more efficient above 10 psi. I believe one of the magazines did a test. You are going to need more boost for same power you were making with the 11:1 compression.