I am working on an LsVtec swapped del sol, with an ssautoshit kit on it This think wont make over 3psi of boost and I cant figure out why. The wastegate is NOT opening, and as far as I can see there are no exhaust leaks, this is all brand new with fresh gaskets. I pulled the piping off at the TB and there is plenty of pressure there while bouncing it off the launch control. I noticed it has an aftermarket exhaust cam gear and it appears to be retarted about 4*, would this stop it from spooling any farther? thats about the only thing I can think of other than a leaky intercooler, but I will leak check the entire chargepiping tomorrow. Also the base timing may be retarted a few degrees, but i'll doubble check that tomorrow also.

pulling down the highway in 4th gear, no more than 3psi, could aftermarket exhaust cam gear be the cause?

 

bad diaphram?

 

do you usually buy just one adjustable cam gear?

 

Thats what I was thinking, but I have very little experience with aftermarket gears.

This is NOT my car, I'm helping a friend tune it.

I never thought of that, wow this is possible I'm gonna write that down, lol.


I dont think the exhaust cam gear retarted a few degrees would make much of a diff, I guess I could try setting it back. Is there any special procedure to lining up the timing on a LsVtec? its a b18b bottom end with a GSR head on it OBD1

 

Disconect the wg and see what you get when you run down the road.

 

Tried that.......about 3psi is all she's got. The WG isnt even opening, the car is very quiet like jago said the exhaust is prolly whats restricting me, i'll check it out tomorrow.

 

well ----...... lol

 

stock exhaust adapted to boost?