C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Stutter-Stumble-Miss

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Old 11-23-2001, 07:25 PM
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micks69
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Default Stutter-Stumble-Miss

My car is done literally done! :) Now for the fine tuning.

I have a miss maybe a stutttttter but its probably just a stumble. Its barely noticeable but I notice it!

New edelbrock 1901
rebuilt distributor @ 30 deg dwell no advance curve
Timing at 8 degrees
Delco r45 plugs
Cheapy coil
Cheapy Points
Rebuilt Engine and heads
Proper gasket pack on intake to carb
Only 1 vac line and thats to the advance

Car idles well (except for a minor stumble)

Pulls strong through the whole RPM range and is smooth and fast under acceleration

At a steady throttle at low speed 50 mph and under in 3rd or 4th gear it ever so slightly lurches (again barely noticeable).

1/10 of a second hesitation on initial throttle from dead stop

Ok tuning guys show me the light! :cool:
Old 11-24-2001, 03:53 AM
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lou
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Default Re: Stutter-Stumble-Miss (micks69)

Sounds like the primary meter rods and jets might be set up to lean or not adjusted properly. Lars has an exellent paper on the subject, he will send it to you if you ask. He describes how to do it better than I can. Drop him a line. lou
Old 11-24-2001, 10:11 AM
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micks69
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Default Re: Stutter-Stumble-Miss (lou)

Ihave my original carb do you think if Itake out the meter rods(primary) and put em in the edlbrk it would help?
Old 11-25-2001, 04:16 AM
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lou
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Default Re: Stutter-Stumble-Miss (micks69)

Depends if you motor is still stock. IF its not, then they might not be the right rods and jets either.

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