torque convertor question
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Joined: Feb 2003
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From: Fleming Island, FL
Car: 1992 Formula 350
Engine: 5.7 L98
Transmission: 700R4
torque convertor question
I have a quick question I am hoping someone might be able to answer. I am going to eventually be putting a 383 into my 1992 Formula 350. I am going to be using a TCI Streetfighter 10 inch convertor. If I was to put this convertor in now behind my stock 350 TPI what would be the outcome? The expected stall speeds with this convertor are between 3000 to 3400 rpm. I have a shift kit in the trans now and 4.10 gears in the rear. I dont want to have to buy a convertor for my application now and then another one later. I figure I would just get the Streetfighter now and change the engine eventually. Any thoughts?
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Car: 86 camaro
Engine: 385
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Re: torque convertor question
anything but a tci! i went threw 2 of them that never locked up. i will never put another tci part in my car.
Re: torque convertor question
The PI's Vigilante is probably the best out there. They have a very good history. They offer a two year warranty, and a free stall change for whatever the reason during that time period. Stall will depend on the modifications done to the motor, duration of the camshaft at .050" lift, lobe centerline, rear end gear ratio, if it is a daily driver or weekend warrior, and how you drive.
Re: torque convertor question
Vig, Edge, PTC all offer great converters. If you cheap out on it, you'll get exactly what you pay for. As dana said, call the manufacturer. Give them the specs for what you have and what you intend on doing with it, let them spec you a converter. Do you think anyone on here knows more than the people who build it?
As I just told another member, if you're gonna get a converter now for a future engine/parts, put it on a shelf till you have that package ready to go in. You're gearing is already off for a TPI, the converter would just make things worse. - The entire combination has to work together as a package, otherwise you end up with considerable $ tied up in a pooch.
As I just told another member, if you're gonna get a converter now for a future engine/parts, put it on a shelf till you have that package ready to go in. You're gearing is already off for a TPI, the converter would just make things worse. - The entire combination has to work together as a package, otherwise you end up with considerable $ tied up in a pooch.
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From: Michigan!
Engine: Vortec 4200 Inline 6 PT70 Turbo..
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Re: torque convertor question
I agree with everything above. Don't cheap out. I saved 200 bucks on the last one, only to have it built way too loose, and then now it was built literally WAY too tight.
Thread Starter
Senior Member

Joined: Feb 2003
Posts: 644
Likes: 0
From: Fleming Island, FL
Car: 1992 Formula 350
Engine: 5.7 L98
Transmission: 700R4
Re: torque convertor question
You're gearing is already off for a TPI
Why would you say that? Is it based on the TPI itself? I plan on using a Stealh Ram and currently the car has a 150 HP nitrous kit. I have 3.23 gears now. With no engine work at all (stock cam, heads, runners, no FPR) it has gonme 12.11 @ 109 with a 1.79 60ft
Why would you say that? Is it based on the TPI itself? I plan on using a Stealh Ram and currently the car has a 150 HP nitrous kit. I have 3.23 gears now. With no engine work at all (stock cam, heads, runners, no FPR) it has gonme 12.11 @ 109 with a 1.79 60ft
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