Hesitation kills.....performance issue need help
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Joined: Jan 2011
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Hesitation kills.....performance issue need help
I have a 1978 vette with an L82. Motor is pretty much stock except for new Holley fuel pump & Accel distributor. New AC Delco plugs and new Accel plug wires. Hedman Headers and no cats. When I am at a stand still and punch it, the car hesitates for a second and then takes off kinda slow. Even when I am going around 30 mph and floor it, the car just sits there.
I don't expect to burn off the tires but I feel it should have more get up and go.
Any suggestions?
I don't expect to burn off the tires but I feel it should have more get up and go.
Any suggestions?
Racer
Joined: Feb 2007
Posts: 271
Likes: 25
From: Buena Vista Colorado
The carb gurus will probably chime in, but the first thought I had while reading your post was: carb accelerator pump.
Check this out:
http://forums.corvetteforum.com/c3-t...t-quality.html
Easy to check. With the air cleaner off, move the throttle linkage toward the rear while looking down the primary carb bores. You should see gasoline spurt from 2 small holes as you increase the throttle opening. Can be done with motor on or off. No spurts = bad accelerator pump = replace with known good pump from Cliff's High Performance. Link:
http://www.cliffshighperformance.com/acc-pump.html
Check this out:
http://forums.corvetteforum.com/c3-t...t-quality.html
Easy to check. With the air cleaner off, move the throttle linkage toward the rear while looking down the primary carb bores. You should see gasoline spurt from 2 small holes as you increase the throttle opening. Can be done with motor on or off. No spurts = bad accelerator pump = replace with known good pump from Cliff's High Performance. Link:
http://www.cliffshighperformance.com/acc-pump.html
Last edited by 78IndyPace; Apr 5, 2011 at 12:59 PM. Reason: Added accelerator pump test suggestion
