need help with my supercharger
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Joined: Aug 2003
Posts: 125
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From: Benton Ky.
Car: 92 Z28/86 T/A/98 R/A T/A
Engine: 355,355,LS1
Transmission: T-56,700r4,T-56
Axle/Gears: 3:73,3:42,3:42
need help with my supercharger
I just finished my first supercharger system, and things aren't goin right. First off it blew the lower intake gasket. I fixed that reset the timing and tried it out. The car is now falling on it's face it jumps out like it is gonna run fine and then just lays down. The s/c is a powerdyne I am running around 6psi. It is on a TPI ( SPEED DENSITY ) 355. The car was amazing till this was alot faster on motor. B-4 it blew the inatke gasket it seemed to run better. Any help is appreciated......
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Joined: Oct 2004
Posts: 805
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From: Charleston, SC
Car: '85 TA
Engine: 350 turbo
Transmission: T56
Axle/Gears: 3.70 posi 9bolt
Sounds like you might be going lean. Have you done anything to your fuel system when you installed the supercharger?
Thread Starter
Member
Joined: Aug 2003
Posts: 125
Likes: 0
From: Benton Ky.
Car: 92 Z28/86 T/A/98 R/A T/A
Engine: 355,355,LS1
Transmission: T-56,700r4,T-56
Axle/Gears: 3:73,3:42,3:42
I have upgraded the fuel system i AM RUNNING ABOUT 40PSI AT IDLE AND AROUND 50 TO 55 AT FULL THROTTLE.
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Joined: Nov 2001
Posts: 333
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From: albuquerque
Car: 1992 Z28
Engine: 350 L98 w/ D-1SC
Transmission: POS 700-R4
We need more detail . By upgrading the fuel system does that mean an FMU, 60# injectors, etc. Do you actually see the amount of boost your suppose to?
Do you have a wideband?
Do you have a wideband?
Joined: Jan 2003
Posts: 949
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From: New Germany, MN
Car: 1986 Iroc
Engine: 5.3
Transmission: 4L80E
Axle/Gears: 9 Inch w/ 3.55
I had this same problem on a mustang. It turned out the map sensor would go nuts if it saw boost. What we did was put a one way valve in the vacuum line.
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