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Dont know what to buy....torque converter..

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Old 03-04-2015, 10:55 AM
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Car: Trans Am gta 5.7 1989
Engine: 350 tpi
Transmission: th700r4
Axle/Gears: BG 9 bolt
Dont know what to buy....torque converter..

Hello have a almost stock (headers)350tpi and want a new converter for my th700 but dont know what to buy? and how much stall speed ?


please help
thanks claus
Old 03-04-2015, 03:44 PM
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Car: 1990 Formula Firebird
Engine: 305 TBI (LO3)
Transmission: WC T-5 out of an 88 T/A
Axle/Gears: 10 bolt, 3.42 & Torsen Posi
Re: Dont know what to buy....torque converter..

Unless your drag racing I'd leave it. A cheap stall converter will make driving miserable from what I hear, and a quality converter is $$$$. Plus stalling a stock motor will quickly push the motor past its power-band.
Old 03-04-2015, 11:54 PM
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Car: Trans Am gta 5.7 1989
Engine: 350 tpi
Transmission: th700r4
Axle/Gears: BG 9 bolt
Re: Dont know what to buy....torque converter..

Hey want to change it because my converter
Makes a strange noise when put in reverse and 1-2
Old 03-05-2015, 08:48 AM
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Car: 1990 Formula Firebird
Engine: 305 TBI (LO3)
Transmission: WC T-5 out of an 88 T/A
Axle/Gears: 10 bolt, 3.42 & Torsen Posi
Re: Dont know what to buy....torque converter..

How are you sure its the converter making noise and not something else? If its faulty why not replace it with a similar stall/stock style replacement?

You still haven't told us what your application is so its hard to make recommendations.

I didn't like how my stock converter behaved either, so I installed this trick piece that lets you vary the stall speed with your left foot, lol.

But all joking aside, there are many guys on here that know a lot more about torque converters than I do, but they will need to know your application to make a good recommendation. Simply stating that the car is mostly stock, without telling us how the car is driven doesn't really tell us much.

Last edited by Formula 305; 03-05-2015 at 08:53 AM.
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