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Print in friendly format Send this term to a friend  TH700R4 / 4L60
Automatic Transmission - 4 Speed

1st Gear: 3.06
2nd Gear: 1.62
3rd Gear: 1.00
4th Gear: 0.70

Reverse: 2.29

- Used in production GM model...
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Re: Trans problems.....signs of a bad torque converter?

Subject: Re: Trans problems.....signs of a bad torque converter?
by dan0617 on 2012/3/18 1:07:26

I've actually ridden in very high stall converter cars that, at part throttle, when they shift from 2-3 the rpms actually go up instead of down.

It's all a trade off. Gotta get cam/intake/gears/converter/heads/max rpms/etc. all matched up. Cam, intake, max rpm and converter are most important. But then, you find that the converter is too high stall to make you happy at part throttle, so you downsize it. Then your cam and intake is too big.

Good for you, with what I know of your combo, I think you could downsize the converter stall to make you happier at part throttle, and you would likely gain some seat of the pants feel at WOT, and you probably wouldn't slow down much in 0-60 or 1/4 mile. Depending on your gears. A higher stall converter bandaids 2.59 and 3.07 gears very well. If you have 3.45's or more, with a 383 and tpi, a street car is better suited with a lower stall (like maybe 1600 or 1800).
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