Cant build boost on the line?

[FL T-Type]

pepole tell me i should build boost on the line like 3 to 5 psi.i stall it to about 2200 rpm,and cant get any boost up.What am i doing wrong?P.S. the car runs 107 mph at the track,just no 60 foot time,2.04 sixty foot not spinning.

 

[vader87]

We will need more info like turbo, downpipe and any other mods. Just through them in your signature!

 

[Bescurred]

You either have

A. Exhaust leak
B. Running very rich at the line
C. Just a slow car with minimal mods?

Is that sixty foot on street tires? Really hold your foot on the brake...like stand on it give it hell. Then bring the RPM's up.

 

[Sal Lubrano]

Are you saying the tires will break loose at 2200rpms?

 

[Hammer231]

Does the car have vacuum brakes? Some guys have trouble holding boost at the line after a vacuum brake conversion. I'm lucky to hold 4 or 5 lbs. myself without pushing through the lights.

 

[Jerryl]

.........Really hold your foot on the brake...like stand on it give it hell...........

I would get a trans-brake. But that is just me :biggrin:

 

[evil666]

I still I have the stock power master brake unit on mine. I was about to convert to vacuum brakes but decided to rebuild the master cylinder and add the ron custom max boost brake module. Since I have done this the car brakes extremly well and I could hold more boost than I ever did. The way the ron custom brake module works is that when it is engaged by a momentary switch it bybasses the stock brake proportion valve and sends alot more pressure to the rear brakes which makes it alot easier to create boost off the line. I have done my best 60ft (1.52) at 9 lbs of boost, but I am sure that I could hold up to 12 lbs or even more but still haven't tried it. The only thing I know is that this brake module works well for me.

Marco.

86 Grand National t-top (59900km)
stock long block,stock suspension, red stripe convertor, te44, smc alk injection, 24lbs boost, 94 octane, hooker cat back with dyno max ultra flow muffers, tomco 30lbs injectors, dynotech stage 4 street chip, thdp, mease 24 row IC, Ron Custom max boost brake module, MT drag radials (275/50/15) 3800lbs race weight with driver. (Torque convertor not locked)
BEST E/T
60FT=1.52
1/8= 7.38
I/4= 11.74
MPH=113
BEST MPH= 114