Engine hesitates after headers
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From: Chicago(DP)
Car: '90 RS
Engine: Vortec 350
Transmission: 700R4
Axle/Gears: 3.23 non posi
Engine hesitates after headers
I recently installed Hedman Shorty headers. Along with them I installed new plugs and wires. I gapped the plugs to .045 (as stated under the hood). Whenever I give it WOT the car bogs/hesitates then after about a full seconds will get moving. It also feels less responsive at part throttle. What could the problem be? Is the .045 gap to big? Thanks
Last edited by Frozer!!!; May 22, 2006 at 11:21 PM.
Joined: Jan 2005
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Originally Posted by Frozer!!!
Is the .945 gap to big? Thanks
Joined: Mar 2000
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You've effectively leaned out the mixture. You can crutch it a little by advancing the base timing a bit.
After that, though, you need to richen it up, mainly in the secondaries. Richer rods will most likely help a lot. You also need to adjust the secondary air valve tension - and make sure your choke pull-off is working while you're at it.
After that, though, you need to richen it up, mainly in the secondaries. Richer rods will most likely help a lot. You also need to adjust the secondary air valve tension - and make sure your choke pull-off is working while you're at it.
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