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Old 12-01-2016, 01:55 PM   #1
B4C
 
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700r4 lockup converter question

The converter lockup on my wife's 86 trans am is hooked to a toggle switch because it wasn't working properly. I'm putting a new motor in the car and the specs are calling for around 3000 stall speed. Can I use a non lockup converter in this transmission and keep the switch turned off?
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Old 12-01-2016, 02:30 PM   #2
WildBillyT
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I seem to remember that it's a bit more complex than that due to the way the fluid is routed. Something like 4th gear gets some of its fluid from the lock up circuit.

Take a look at this:

http://www.coanracing.com/PDFS/Insta.../COA-92847.pdf

Personally I'd keep the lockup feature. JMO.

Last edited by WildBillyT; 12-01-2016 at 02:33 PM.
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Old 12-01-2016, 02:50 PM   #3
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Well the problem is its broken anyway, so I figured if I keep it turned off it wolnt matter. She never uses the switch to lock the converter as it is. I don't plan on keeping the trans for long. It will get t56 swapped at a later date.
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Old 12-03-2016, 09:38 PM   #4
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Quote:
Originally Posted by WildBillyT View Post
I seem to remember that it's a bit more complex than that due to the way the fluid is routed. Something like 4th gear gets some of its fluid from the lock up circuit.

Take a look at this:

http://www.coanracing.com/PDFS/Insta.../COA-92847.pdf

Personally I'd keep the lockup feature. JMO.
Too much to do, trans inst coming out. Might just keep the stock converter for the time being
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Old 12-04-2016, 12:21 PM   #5
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If the motor you're using is calling for a 3k converter and you use a stock 1200-1400, you're going to have a bad time.
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