NEED MORE OF SOMETHING

[we2man]

Hey, guys i have a question and hoppfully you can help. My gn has bone stock motor with some bolt ons it has ta49 40#injectors, duttweiler fmic, adjustable fpr test pipe kenne bell ultimate chip,cat back exhaust. Everything else is stock including down pipe. I laid waste to a t-type that ran 7.60 in the eighth so i guess this puts me in the 7.50 category. The thing is when im on the higway playing around my gn seems to peter out around 70 or 80 do i need more add ons or to adjust something?

 

[Mr.Spool]

how much boost are you running?

 

[we2man]

Im no master tuner but i think it is 13-14#s after the turbo was installed and i brought it home i never tried adjusting anything not the fuel pressure or the turbo. Im more afraid of messing it up!

 

[Mr.Spool]

14 psi is what your feeling.the kb chip had alot of timing for the 14/15 psi.the 49 will pull real hard up top with 22/25 psi.you are only moving x amount of air at 14 psi.now dont go raising boost without octane and getting a chip that you can lower the timing.

 

[Mr.Spool]

the 49 wont run 7.50's on 14 psi.that 7.60 car probably has his dialed back due to lack of octane.

 

[we2man]

the 49 wont run 7.50's on 14 psi.that 7.60 car probably has his dialed back due to lack of octane.

 

[we2man]

Thanks man! i'll store this in my file for future reference!

 

[QUIP'6']

7.50's is in the 11's so hes right the other car is detuned or lack of octane.. get yourself a chip from eric at www.turbotweak.com

 

[we2man]

7.50's is in the 11's so hes right the other car is detuned or lack of octane.. get yourself a chip from eric at www.turbotweak.com[/quote] Ok, so i add the turbotweak chip will that adjust or (turn up) the turbo with some high octane pressure or do i have to adjust the turbo from under the hood? Also what about the fuel does it need to be turned up by hand or will the computer do it ? thanks!

 

[QUIP'6']

Put the chip reset computer and adjust fuel to 43# drive and let computer learn. Set boost to 14 and tune from there. Leave fuel alone. You can adjust in chip if needed