rearend soot
Thread Starter
Staging Lane
Joined: Sep 2005
Posts: 82
Likes: 0
From: Alabama
rearend soot What fuel pressure you guys are running on your LT1' s. I have a 95 T/A with every mod you can think of and it has been stroke, I keep running into having soot on the rearend after about 70 to 80 miles running 93, I am not talking about a little soot. The PCM has been programmed, I run stock pressure about 48 psi at idle I have two 255lph pumps, more fuel volume, I was thinking of lower the pressure to 43 psi at wot. The car bumper does not soot up no where as bad if I run 87, thats why I think my pressure is to high with two pumps, it does the same with one pump aswell. The ingition is fine aswell, I already tried multiple o2 no effect.
What fuel pressure you guys are running on your LT1' s. I have a 95 T/A with every mod you can think of and it has been stroke, I keep running into having soot on the rearend after about 70 to 80 miles running 93, I am not talking about a little soot. The PCM has been programmed, I run stock pressure about 48 psi at idle I have two 255lph pumps, more fuel volume, I was thinking of lower the pressure to 43 psi at wot. The car bumper does not soot up no where as bad if I run 87, thats why I think my pressure is to high with two pumps, it does the same with one pump aswell. The ingition is fine aswell, I already tried multiple o2 no effect.
Like this
I have a 95 computer in my 96 . The shop that built the engine said the 95 computer can program more fuel delivery . My Fuel and Oil pressure is high like yours is but I havent gotten my car tuned in a while. I would take the car to a good tuner in your area have them tune the car and lean it out. Or you can put nitrous on it and have that warm fuzzy comfortable feeling like I do whenever I get on it atleast I know its not going to be lean
