maxpower_454

iTrader: (7)

So I got my 402 F1A car dyno tuned and it made 752hp/700tq. Very happy with the numbers but it's only reading 10psi. It has l92 heads and intake, ebay FMIC, ARH headers, 2.5" TD's in to GMMG, and I think a 4.30 pulley.

Does 10psi sound accurate for the setup? I'm just wondering if there is a high pressure loss across the FMIC like others have found. What's the best way to check boost pressure before the intercooler?

stevieturbo

What is only reading 10psi ?

It really shouldnt be hard for you to hook up a known and working gauge to the intake to verify.

And likewise if looking to see pressure drop, just get two gauges known to read the same and hook them up to each side of the IC, go down the road and watch or record them, assuming you have no other means of logging.

Do not just get 2 gauges and assume they read the same, test them first so you know for sure as they can vary slightly, which would then defeat the purpose of the test.

Bob@BruteSpeed

iTrader: (16)

FWIW: The hp and tq numbers look right to me for 10 psi with L92 heads. Bob