Transmissions and Drivetrain Need help with your trans? Problems with your axle?

Upgrade Torque Converter?

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Old May 2, 2011 | 09:57 AM
  #1  
formula_novice's Avatar
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From: St. Louis, Missouri
Car: 1989 Firebird Formula
Engine: 383 Stealth Ram
Transmission: 700R4
Axle/Gears: 3.73 9 bolt Posi
Upgrade Torque Converter?

Hi Guys,

I'm currently using a mostly factory 700r4 with my setup (see sig). In the next few months, I will be replacing it with a 700r4 from ProBuilt or another known vendor.

Until then, my HSR and Hughes 2500 stall seems to be sluggish off the line until I hit the HSR's power-band. I can't even spin my tires. I had 3:73's installed hoping this would help but it didn't make a huge difference. Would upgrading to a higher stall or smaller torque converter help get me moving (and spinning ) off the line?

Any advice would be appreciated.

Thanks!
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Old May 3, 2011 | 11:15 PM
  #2  
UnderCover89TBI's Avatar
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From: Manteca,California. Nor Cal.
Car: SOLD IT. Mopar guy only now.
Engine: gone
Transmission: gone
Axle/Gears: gone
Re: Upgrade Torque Converter?

I would call Dana at Probuilt. Tell him your engine specs. gears. etc. And see what he recomend for you. I think with 3.73 a higher stall converter might be what you need. He will want to know your camshaft specs also. Good luck. Use Probuilt I have heard nothing but good stuff about him.
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Old May 4, 2011 | 09:47 PM
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91banditt2's Avatar
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From: Cincinnati,Ohio
Car: 1991 BandittII Firebird
Engine: 5.7 HSR
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
Re: Upgrade Torque Converter?

Call up one of the many aftermarket vendors and give you specs and see what they recommend. I know the converter needs to be matched with the cam to get the most out of both.
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