Originally Posted by grimlin
We ran the FP3794 on the Full Race twin scroll kit with a Perrin 3.5" FMIC core originally and maxed out the air flow at 669whp at 34psi on C16. So we changed to the Ultimate Racing twin scroll kit with an AMR 5" FMIC core and a 4" TBE and were able to hit 709whp at 34psi on C16. And yeah the 1.06 hotside is big, too big IMO, but that's how the car originally came to us (but only pushing 511hp at 33psi on C16)
This is all great info to me. I'm running a 3.5" Turbo XS core and was wondering at what point I will run out of I/C. Sounds like the car was pretty rough only making 511 on 33psi and C16!