S2KCHRIS305

hey guys i got my kit on and had it tuned today came out with 252whp and 207tq . kinda dissapointed with the numbers was looking at atleast 280whp/. im running pfab manifold . just to let u guys know the pfab manifolds define kills power for us . il be installing my greddy manifold tomorrow n going back for a tune .

b.r.i.a.n.

the torque numbers are great. i really doubt that the pfab manifold is holding you back. it's the stock exhaust that's holding you back from more gains. get a 3 inch single exit exhaust and pick up another map sensor and increase the boost.

S2KCHRIS305

pfab manifold is just a straight tube that doesnt direct the air downward to escape . the stock greddy manifold has inlets directing the air out .

S2KCHRIS305

theres a couple people on this greddy thread thats has had a similar problem wen they switch to the pfab . im shooting for atleast 280whp brian . if not im going back to stock

b.r.i.a.n.

regardless, they're both log manifolds. you can hit 280+ whp, just get rid of the stock exhaust. 3 inch down pipe and 3 inch exhaust should get you there.

S2KCHRIS305

well something is wrong. I spoke to greddy today they told me that it should be about 285hp just bolted on, no other upgrades. why would they design a kit or who would buy a kit that costs 6000 dollars that would only give 40-50 hp? That doesnt make sense , something must be wrong.

S2KCHRIS305

look at this case brian after the pfab manifold installation

b.r.i.a.n.

285 hp to the flywheel, sure but not to the wheels. again, get the 3 inch down pipe, 3 inch single exit exhaust and pick up another map sensor to increase the boost. change the turbo manifold if you'd like but i don't see it as the culprit for robbing power top end. again, the stock exhaust is holding you back big time.

S2KCHRIS305

http://www.turbomagazine.com/tech/08...t/viewall.html
look at this link n look at others in this thread many have 280 wheel horsepower n some more

b.r.i.a.n.

i wouldn't doubt that you can hit 280+ whp but i'm just letting you know that it's going to be very very difficult to make any more gains with a stock exhaust. changing the turbo manifold to another log manifold is not going to yield any more gains.

and remember that all dynos read differently. you were tuned on a dynocom. who knows what kind of power you'll see on a dynojet. at the end of the day they're just numbers.