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

converter lock at wot

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Old Jan 22, 2013 | 08:04 PM
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wht97ws6ta's Avatar
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From: Kinston North Carolina
Default converter lock at wot

I was wondering if anyone was letting there converter lockup in 3rd at wo throttle. I didn't think it was healthy on the converter but I believe I've heard a few cars at the track drop just a few rpms just before the go though the et cones. Sounded like converter lockup. Seemed to subtle to be a 4th shift.
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Old Jan 22, 2013 | 09:03 PM
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LT1 F bodies lock the TCC @ WOT from the factory. 3.23 geared cars lock @ 95 MPH & 2.73 cars a little higher. Most 1993 & newer 4L60E trucks lock WOT @ 75 MPH.
My testing has shown zero difference in ET or MPH with my NA LT1 car. Turbo & nitrous cars often do like it.

It is a lot more obvious listening to a car with a higher stall speed converter locking.
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Old Jan 22, 2013 | 09:16 PM
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Originally Posted by Ed Wright
LT1 F bodies lock the TCC @ WOT from the factory. 3.23 geared cars lock @ 95 MPH & 2.73 cars a little higher. Most 1993 & newer 4L60E trucks lock WOT @ 75 MPH.
My testing has shown zero difference in ET or MPH with my NA LT1 car. Turbo & nitrous cars often do like it.

It is a lot more obvious listening to a car with a higher stall speed converter locking.
Mine is a vigi 3500. If its no harm to the lockup disc then any rpm drop at all is welcomed with my 4.11 gears. Gotta go back to 3.73s.
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