This is the set-up:
Trick Flow Upper and lower intake (street or track?, how do you tell them apart?)
30# injectors
255lph pump
140amp alt.
powerpipe w/bypass valve
C&L 76mm MAF
BBK 70mm throttle body (does that sounds right? too small?)
Powerdyne BD11A Supercharger (6psi)
Full MSD ingnition 6AL and boost timing master
Mac unequal shorty headers, Off road X pipe and Cat Back
373 gears
Pro. 5.0 Short Shift
2 autometer guages (boost and air/fuel)
and a cold air intake in the fender (90 degree bend in front of the maf)
It goes like a bat out of hell and the air/fuel is usually in the stoich range towards the rich side.
The issue is idle. It cold starts fine and idles fast a first (~1100rpm) but then it kick down and starts to stumble (never stalls) and hunts back up to 1500rpm for a bit and drops back down stumbles and goes back up. The a/f gauge doesn't register at idle but it smells real rich at stop lights.
Is it the MAF? I heard a Pro-M would be better?
Is it a vacuum leak? Lines have been plugged and moved, I'm in the process of finding a diagram to try and figure what has been done.
The PVC is also not connected to the intake before the s/c. Is that a big problem?
The boost gauge sensing line needs to be connected, that is another question I have, wheres the best place to tie into the vacuum?
I'm just want to make sure that the s/c is set up in the best way possible. I don't want to go bigger just optimize what I have.
Any good books or sites on s/c setup?
Thanks and sorry about the long post.
Trick Flow Upper and lower intake (street or track?, how do you tell them apart?)
30# injectors
255lph pump
140amp alt.
powerpipe w/bypass valve
C&L 76mm MAF
BBK 70mm throttle body (does that sounds right? too small?)
Powerdyne BD11A Supercharger (6psi)
Full MSD ingnition 6AL and boost timing master
Mac unequal shorty headers, Off road X pipe and Cat Back
373 gears
Pro. 5.0 Short Shift
2 autometer guages (boost and air/fuel)
and a cold air intake in the fender (90 degree bend in front of the maf)
It goes like a bat out of hell and the air/fuel is usually in the stoich range towards the rich side.
The issue is idle. It cold starts fine and idles fast a first (~1100rpm) but then it kick down and starts to stumble (never stalls) and hunts back up to 1500rpm for a bit and drops back down stumbles and goes back up. The a/f gauge doesn't register at idle but it smells real rich at stop lights.
Is it the MAF? I heard a Pro-M would be better?
Is it a vacuum leak? Lines have been plugged and moved, I'm in the process of finding a diagram to try and figure what has been done.
The PVC is also not connected to the intake before the s/c. Is that a big problem?
The boost gauge sensing line needs to be connected, that is another question I have, wheres the best place to tie into the vacuum?
I'm just want to make sure that the s/c is set up in the best way possible. I don't want to go bigger just optimize what I have.
Any good books or sites on s/c setup?
Thanks and sorry about the long post.
