walter pilie
Registered User
My 92SC is just about complete.
New short block from Ford. Stieg heads and cam, w/1.73 roller rockers, Bosch matched 42# inj, 87mmPro-M MAF, 85mm MP Tb, 3.5 intake tubes and K&N, ARP head studs, ported SC by MP, raised top, 190lph fuel pump, 2.5x3x2.5 exh w/o cats, raised top, MP IC kit with pusher and puller fans, 180F tstat, Magnecor wires, new plugs, mid-length headers, BHJ balancer, underdrive pulley set, 10% SC pulley, 4.2 head gaskets, and chip by APTEN. I'm sure I've forgotten something.
The car runs like a bat out of hell when getting into it. Idle is rough (cam lope very noticeable). If throttle is opened, and returned to idle, it will kill. Idle is at ~750-800rpm, and manifold vacuum on dash gage is about 8"hg at idle (before mods, this was 19"hg). Seems to be rich at idle. We would have expected better vacuum for idle, and idle at 1000rpm. No check engine lights.
We are in touch with Brian at Apten, and are checking basics such as cam sensor position, coil pack to plug wires. Will likely send chip to Brian to adjust the idle and try again.
What I wonder is what others with similar setups have experienced after the cam and heads and intake, etc, etc mods.
Any experiences that anyone might be able to share? Especially any fixes to the idle problem.
I saw a thread that mentioned adjusting the idle screw on the TB and the idle control bleed screw (not sure where that is).
thanks in advance for any advice.
New short block from Ford. Stieg heads and cam, w/1.73 roller rockers, Bosch matched 42# inj, 87mmPro-M MAF, 85mm MP Tb, 3.5 intake tubes and K&N, ARP head studs, ported SC by MP, raised top, 190lph fuel pump, 2.5x3x2.5 exh w/o cats, raised top, MP IC kit with pusher and puller fans, 180F tstat, Magnecor wires, new plugs, mid-length headers, BHJ balancer, underdrive pulley set, 10% SC pulley, 4.2 head gaskets, and chip by APTEN. I'm sure I've forgotten something.
The car runs like a bat out of hell when getting into it. Idle is rough (cam lope very noticeable). If throttle is opened, and returned to idle, it will kill. Idle is at ~750-800rpm, and manifold vacuum on dash gage is about 8"hg at idle (before mods, this was 19"hg). Seems to be rich at idle. We would have expected better vacuum for idle, and idle at 1000rpm. No check engine lights.
We are in touch with Brian at Apten, and are checking basics such as cam sensor position, coil pack to plug wires. Will likely send chip to Brian to adjust the idle and try again.
What I wonder is what others with similar setups have experienced after the cam and heads and intake, etc, etc mods.
Any experiences that anyone might be able to share? Especially any fixes to the idle problem.
I saw a thread that mentioned adjusting the idle screw on the TB and the idle control bleed screw (not sure where that is).
thanks in advance for any advice.