Bad boost on 245whp Sohc!
I got a question thats been plagueing me nd Ive tried almost everything.
Quick setup:
D16y8 built bottom end
SRP pistons, Eagle rods, ARP studs
Stock head
2.5 Dp and exhaust
Hondata
550 injectors
t3/t4 .50/.48 (not sure on the trim)
15 psi, 245whp 202ftq
My goal was 300+!
So obviously, just turn up the boost right? Well, the boost will not go past 15psi!!! I have a turbosmart MBC and a 10.153 Tial wastegate spring. Ive tried everything. No boost leak anywhere, no exhaust leaks anywhere. I have posted this and got some ideas, like take the vacuum lines completly off the wastegate, tried that, still 15psi. I havent put a bigger spring in yet, but some people say that this wont matter. Do you think a bigger spring will raise the boost in my situation or is something else wrong.
Maybe the trim on the turbo is wrong, because I aint got a clue what it is!