Originally Posted by HEMI450HP
Like said above, it catches the oil from your PCV valve that would otherwise be dumped into your intake manifold. When that oil enters your manifold it will mix with your fuel which lowers the overall octane rating of your fuel. This is terrible for performance especially when you have a performance tuner installed. Tuners increase timing and require more fuel which is why you see 87, 89, 91, and 93 octane tunes. Not having the correct octane fuel will cause detonation which then causes your computer to pull timing...pulled timing means a loss of power and efficiency.
Hey Hemi450....How goes the GC? I have customized my CAI system, installed in a ported TB and a catch can...and am now running a custom 91 octane tune from Sean. My 0-60 is now down from 8.2 to 6.9 seconds. So far,so good.
I value your opinion and want to know your thoughts on cat back exhaust systems. Think they would bring a few more ponies to the party without new headers? Or...Are they a waste of money. It's performance I'm after, not sound....although a little growl wouldn't be so bad.
Been looking at Corsa because the drone is supposed to be very limited with them