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

450 hp with 700r4

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Old Mar 26, 2012 | 03:03 PM
  #1  
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From: Pennsylvania
Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
450 hp with 700r4

Will my 700r4 with transgo 2&3 kit, reverse manual valve body and corvette servo be able to hold up to the 383 I'm building? It will be mostly street driven so not too much pressure on the trans
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Old Mar 26, 2012 | 09:53 PM
  #2  
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Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
Re: 450 hp with 700r4

Yah, it'll hold, but not long
What do you have for a converter?

I have a built 700r4 with better everything (sunshell, shift kit, corvette servo, better clutches)

It held for 3 seasons of street/strip, although I was spraying it too.

The problem I had was that the 700r4 was twice as much money to rebuild as a th350, and the th350 could be built for less to hold more power.
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Old Mar 26, 2012 | 10:36 PM
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From: Pennsylvania
Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: 450 hp with 700r4

So basically I can get a stronger th350 for less overall cost? And will that work with a reverse full manual valve body? I'm set on the ratchet shifter (can't afford a 5-speed swap) and the converter is my next question, I don't know anything about them, what do you thik would be a good stall to get? And keep in mind that this is a street build, mostly low end torque with a powerband starting between idle&1000rpm and ending 5000-5500rpm and a 3.42 posi to go with it, I want something that can handle 450hp as more of a safety net, but I'm building it more as a low end torque car with a few days at the track a year
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Old Mar 27, 2012 | 08:32 AM
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: 450 hp with 700r4

If you enjoy driving your car any distance (highway) keep the 700r4 and talk to http://www.700r4l60e.com/.
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Old Mar 27, 2012 | 09:25 AM
  #5  
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From: Pennsylvania
Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: 450 hp with 700r4

I've been on that website, the problem is that I won't have that much money for those kits, I'm not worried about gas so no overdrive isn't a problem
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Old Mar 27, 2012 | 09:42 AM
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: 450 hp with 700r4

Just make sure you factor in all the costs for the th350 swap vs the 700r4 rebuild.
Is this a weekend toy or a daily driver??
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Old Mar 27, 2012 | 02:50 PM
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From: Pennsylvania
Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: 450 hp with 700r4

It will be a weekend toy that won't see much over 3000-3500rpm
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Old Mar 27, 2012 | 09:18 PM
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From: Manitoba
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
Re: 450 hp with 700r4

I had a 700r4 that needed a rebuild. It was going to cost $1600!! and I could still drive the car! It still had all the gears it was just slipping from 2-3.

I bought a core th350, bought a th350/700r4 swap torque arm, rebuilt it with a full manual and bought a converter all for under a $1000.

I used the stock driveshaft, the only con to the swap is that I dont have a speedometer.
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Old Mar 27, 2012 | 09:23 PM
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From: Pennsylvania
Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: 450 hp with 700r4

Anyway to get the speedometer to work with a th350?
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Old Mar 27, 2012 | 09:25 PM
  #10  
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From: Manitoba
Car: '91 GTA
Engine: 421sbc
Transmission: Powerglide
Axle/Gears: Ford 9" with 3.89
Re: 450 hp with 700r4

I dont know, I never bothered.

I street/strip the car

I'm sure something can be rigged up, I read on TGO that you could buy an electronic device to make it work, search on here
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Old Mar 27, 2012 | 09:30 PM
  #11  
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From: Pennsylvania
Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: 450 hp with 700r4

I think I might just stick with the 700r4, I guess it would be worth the money in the end, would a 5-speed swap cost less?
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