aurora 5k

[otpulling]

one of my sponsors owns my turbo on my pulling truck and he is in love with this thing but i have heard not good things about this turbo from other people. i am getting about 40 lbs of boost out out of it with a bushing down to a 2.6. so my problem is when i pulling down the track in third gear i cannot get the engine over 3600 rpm. i have double check my tunes, i have driven it on the road and i can get 4000 rpm out of it then. so my question is do i just not have enough power or is the small exhaust housing snubbing the motor out and that high of an rpm with a load. i am at a loss with this thing. i am running stock heads, cam, piston, rods, exhaust manifold. so any help would be great expecially with the turbo and what you thought of it. thanks.

 

[JWhite]

Need to monitor drive pressure if you want to be sure, and hit up a dyno. You may be wasting time trying to turn 4k with stock heads/valvetrain on the track, need to see where the power is.

 

[otpulling]

i know i am probably out of my torque curve but what i am looking for is wheel speed and not sure i can do it in 4th gear yet thats all. but thanks for that input