Hello i just purchased a 1993 trans am. It has a garrett precision turbo kit with a T-68GTS.. it is turbo to water and everything is good except for a few scratches and bells and whistles.. However, there is one issue im not too particular about.. When i floor the T/A around 4 grand it seems it hits the rev limiter but it has been taken to redline before the problems.. everything works fine driving normally but especially when racing it seems to do it more often than not. once in a great while it wont do it and runs fine.. i tried changing out the turbo filter and put a new one in and it still doesnt work.. i just want some feedback as to what could be the problem.. if there is anything u can contribute i would greatly appreicate it thanks!! and some things to add it was tuned on the stock ECM.. the tune is based on 2 bar map sensor. the system is running around 11-12 volts right now.. The tune was performed on a dyno at AKRON Hp in Ohio.. another thing if i ease into it 500 rpms at a time i can get up to 6 grand no problem.. its when i load it all on it at once it occurs.. Horsepower wise. at the motor is around 450 horsepower and at the wheels it is running 345 there abouts with 7 lbs of boost.. the injectors are SVO#36 .. im not too sure about the retard timing on the boost or if the knock retard programming was altered.. i think it was dynoed with the computer acting as a retard for the boost.. which explains the low max boost.. This whole entire system was designed and put in at ohio forced inductions.. the kit includes
1 3/4 Tubular Headers
T-68GTS (Garrett) Precision Turbo
2 1/2" Crossover Pipe
3" Downpipe
V-band clamps on Headers and Downpipe
5-Ply Silicone
Custom 3 1/2 Aluminum Radiator
2 Spal Fans
Tial 50mm BOV
Tial 44mm WG
Oil Drain and Feed Lines
If there is any other information needed let me know
1 3/4 Tubular Headers
T-68GTS (Garrett) Precision Turbo
2 1/2" Crossover Pipe
3" Downpipe
V-band clamps on Headers and Downpipe
5-Ply Silicone
Custom 3 1/2 Aluminum Radiator
2 Spal Fans
Tial 50mm BOV
Tial 44mm WG
Oil Drain and Feed Lines


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