OK, I want to hear about good manifolds out there to flow with setup... I want opinions on where and who carries and why, please! Currently my car just dynoed and not very good results at high boost . Could of been the manifold not flowing enough air just crashing into each other, finding a way out of the exhaust. But the vaccum line blew off my fuel pressure regulator and got more power for some reason, not enough though It might be bad so i might change by buying another one and gauge. I dunno very frustrating not getting enought POWER. thanks sorry for the long message.

drew

 

what do you have? what power did you make?

 

Don't ever buy a OBX!

 

right now i have a log manifold, i believe

 

For t25/t28 setups, the HKS manifold looks sweet.
Don't know too much about the manifolds w/ a t3 flange.

 

i got a t3/t04E .63 A.R. and stage 5 wheel exhaust

 

Drew:

there are a couple of good options for you.

The first is the JGS 4 into 1 manifold that puts the turbo in the same location as your origional manifold!! This will work alot better for you in the high boost areas, but remember, that might not be your only problem. Phase 2 motortrend made 526 with a log manifold identical to yours.

$750

Next up is the Enjuku 4-1 manifold made of 321 stainless and manufactured by Hot Shot. This is a great manifold for up to 420 RWHP.

$999
From 420RWHP --> you want the Full-Race manifold.
This is the same manifold Scott uses on his 540 rwhp ride

$1200

 

scotts is HUGE! I didn't know phase2 used a log manifold. I had dynoed my car and it only made like appro. 250 rwhp at 15 psi like two or three runs. Weird, i didn't think it was the manifold but I might go check the mafs and see where the voltage is at and dyno at the same time. I dunno, hopefully something will be figured out and it makes 350+hp.
drew

 

help!!

 

sounds like something else is amiss for you to be dynoing 250whp on a T3/T4.... People are making that off of T25's (Vapor)

I think some ROM tuning would be in your best interest