Quote:
Originally Posted by SRSmith
Thank you for the reply Octane
QUOTE
"That said though, if later you up the boost, (I would say 20 psi or more) then def go with the Greddy style intake.
I know from experience on the dyno that with 23 psi, a GT3071R and a Greddy style intake that the LAGGGGGG was real!"
May I ask why you recommend going with the greddy with over 20psi, but then you said the Lag was so bad you switched back?
|
Maybe I did a bad job of explaining.
With the Greddy style intake, the plenum is huge and the runners are short.
Think about it in terms of the turbo having to fill the plenum with compressed air before the air can be forced into the cylinder. The larger the plenum, the more air required to fill it. Thus the stock SR20 intake manifold having the smaller plenum, requiring less air to fill it.
Runner length matters also. Short runners are better for higher rpm power, and longer runners are better for low end power.
So going with the stock intake makes the most sense if you are running relatively lower boost.
It was just my experience that the Greddy style intake moved the power band way too high, you didn't feel boost till WAAAY late. I'm talking after 4,000 rpm late.
With the stock intake, boost came in so much sooner, around 2,200 rpm.
Now, if anyones argument is looks, then good luck to ya. There are hardly any aesthetics when it comes to making power.