LT1-LT4 Modifications 1993-97 Gen II Small Block V8

New Lt1... why is it limited at 75mph?

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Old 10-30-2010, 01:18 AM
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Originally Posted by Travis Johnson
Not enough information. What exactly does it do at 75? Have you tried different gears?

With no tach, are you sure you're not hitting the rev limiter? Or maybe if the tach isnt getting signal the rev limiter is messed up as well.
its 75mph any gear. rpm has no relevance.
Old 10-30-2010, 03:30 AM
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So..........when you get to 75, if you try mashing the gas pedal it doesn't do anything?
Old 11-01-2010, 04:26 PM
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Originally Posted by myk
So..........when you get to 75, if you try mashing the gas pedal it doesn't do anything?
It bounces of a limiter. It is sort of violent though. Caused wheel hop once, but that was probably from momentum and the drastic change in force.
Old 11-01-2010, 04:39 PM
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I had an ignition issue like that before, but it occurred at a certain rpm, not speed. I replaced a bunch of ignition parts at the same time so I don't know which one fixed it.

If it's an issue from a low speed limiter set by a tune, you can check for a chip since its a 93. If it has one and doesn't have any mods that require a tune you can pull it.
Old 11-03-2010, 04:41 PM
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Originally Posted by Travis Johnson
I had an ignition issue like that before, but it occurred at a certain rpm, not speed. I replaced a bunch of ignition parts at the same time so I don't know which one fixed it.

If it's an issue from a low speed limiter set by a tune, you can check for a chip since its a 93. If it has one and doesn't have any mods that require a tune you can pull it.
how would i pull it? i have a 94 so i have never looked at a 93 ecu. but that sounds like a good idea



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