New engine.... just started about 3 nights ago. Cams broken in, oils changed. Timing is set to 6* (in drive). Problem I'm having is... the car idles in park at about 950rpms but will not idle in any gear. Now the proper way to set the idle air control is to unhook the IAC and set the idle to 450rpms according to the tech article. I doubt very seriously if I could get my car to even try and idle at 450rpms. Fuel pressure is set at about 40psi and you can see my mods in my signature. Do you think my car needs more than 6* timing(in park) and that's why it won't idle in gear? Please help.

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1986 Trans AM
355 TPI
4 Wheel Disc Brakes
9 bolt Borg Warner Rear (2.77's....oh joy) :P
6" rods, approx. 9.7:1 Compression, Stock TPI (soon to be ported), 24#/hr LTI injectors (cleaned and flowmatched by Cruizin Performance), Hedman Shorty Headers, 3" exhaust with 80 series flowmaster, SBC 993 heads completely redone and modified for 1.6 RR, 1.52 RR (for now), Comp Cams XE262-14 TPI Cam, Holley AFPR, TPIS airfoil, MSD wires, MSD 6-AL Ignition, Hypertech 53,000 volt coil.

Track times to come.

 

If you have an auto tranny, I would check to make sure your TC lockup is working properly.

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"Putting any amount of money into a RICE BURNER is like wiping your a$$ with a turd. "
'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
3" Hooker CatBack w/Aero Chamber muffler
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat, just switched to 180* b/c of winter coming and going to college in the mts.
3:73 Posi
Rebuilt 700R4
B&M Megashifter, 5" Autometer Tach w/shift lite

 

My TC lockup never works properly due to no driven gear in the transmission which means no speedo. Haven't got it fixed yet. But that didn't stop my 305 from idling in gear. I think I need to bump my idle up a bit and maybe even my timing. Anyone else have suggestions??

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1986 Trans AM
355 TPI
4 Wheel Disc Brakes
9 bolt Borg Warner Rear (2.77's....oh joy) :P
6" rods, approx. 9.7:1 Compression, Stock TPI (soon to be ported), 24#/hr LTI injectors (cleaned and flowmatched by Cruizin Performance), Hedman Shorty Headers, 3" exhaust with 80 series flowmaster, SBC 993 heads completely redone and modified for 1.6 RR, 1.52 RR (for now), Comp Cams XE262-14 TPI Cam, Holley AFPR, TPIS airfoil, MSD wires, MSD 6-AL Ignition, Hypertech 53,000 volt coil.

Track times to come.

[This message has been edited by 86TpiTransAm (edited November 18, 2001).]

 

Set the timing to what you car likes best... timing is like fuel octane, run whatever works the best for you...

Fuel pressure should probably be higher...

To adjust the idle screw, disconnect the IAC, EST and any other sensors that affect engine speed or mixture and set to about 450 RPM's, if it won't idle that low, you've got other engine problems...

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1985 Camaro SC - 2.8L, auto.

C'mon, spin 'em for papa...
http://www.xenodrgn.f2s.com/Frontright.jpg

 

For your idle setting, 450 rpm is recommended for a stock engine. Since you've got a cam and other high performance goodies you're gonna want to set the minimum idle higher than that. Just set the idle (w/ IAC unplugged) as low as you possibly can without the car dying. No offense intended for Xenodrgn, but if it won't go to 450 that does not mean you have engine problems (although it might if your engine was stock). When my camaro had the old 305 with a cam it wouldn't go lower than 600, and it was not sickly by any means.

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91 Z28
Come see The Vicious...

[This message has been edited by ViciousZ (edited November 19, 2001).]

 

And in response to your question about timing: computer controlled cars are pretty darn good at keeping themselves running when the timing is off. For example, when I put the engine in my firebird the timing was severely retarded, like so retarded it wasn't even on the timing tab. That means at least 15* retarded. But the computer managed to compensate and keep the car running even under those circumstances.
If your timing is really at 6* then I seriously doubt that is what is causing your problem. Make sure you set the timing with the tan wire/harness unplugged. This is very important.

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91 Z28
Come see The Vicious...

 

The timing is about 6*-7* WITH the wire unplugged.... it's a brownish looking wire with a black stripe. I'm pretty sure that was the right wire because when I started the car I got a code 42 I believe it was which is the electronic spark. I guess my idle just needs to be bumped up a bit. I'll have to try that out today.

Can some of you tell me what rpms your car idles at in park?? Not in gear but in park... just curious. Preferably some of you with cars that have been modified.

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1986 Trans AM
355 TPI
4 Wheel Disc Brakes
9 bolt Borg Warner Rear (2.77's....oh joy) :P
6" rods, approx. 9.7:1 Compression, Stock TPI (soon to be ported), 24#/hr LTI injectors (cleaned and flowmatched by Cruizin Performance), Hedman Shorty Headers, 3" exhaust with 80 series flowmaster, SBC 993 heads completely redone and modified for 1.6 RR, 1.52 RR (for now), Comp Cams XE262-14 TPI Cam, Holley AFPR, TPIS airfoil, MSD wires, MSD 6-AL Ignition, Hypertech 53,000 volt coil.

Track times to come.