Best Automatic tranny for high hp?
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Best Automatic tranny for high hp?
I was thinking that if i get over 400hp and more torque than i could handle with a 383 and a SR, that the 86's 700R4 would fail fairly quickly.
so what should i think about having done to it, beefed up with new TC and cooler (ill get those 2 either way) or a whole new transmission and if so what kind?
or should i think about swapping in a ZF6 or other 6spd? or is there a 5speed automatic that could handle it?
thanks
so what should i think about having done to it, beefed up with new TC and cooler (ill get those 2 either way) or a whole new transmission and if so what kind?
or should i think about swapping in a ZF6 or other 6spd? or is there a 5speed automatic that could handle it?
thanks
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From: Semper ubi, sub ubi
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Re: Best Automatic tranny for high hp? (vader86)
One of the guys on the C-3 Forum put an 4L80E in his car, I had some links a couple of weeks ago to some other performance transmission places.
http://www.transmissioncenter.net/highperf700r4.htm
http://www.tpiperformance.com/index.html
http://www.transmissioncenter.net/highperf700r4.htm
http://www.tpiperformance.com/index.html
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From: modland CT
Re: Best Automatic tranny for high hp? (vader86)
I was thinking that if i get over 400hp and more torque than i could handle with a 383 and a SR, that the 86's 700R4 would fail fairly quickly.
so what should i think about having done to it, beefed up with new TC and cooler (ill get those 2 either way) or a whole new transmission and if so what kind?
or should i think about swapping in a ZF6 or other 6spd? or is there a 5speed automatic that could handle it?
thanks
so what should i think about having done to it, beefed up with new TC and cooler (ill get those 2 either way) or a whole new transmission and if so what kind?
or should i think about swapping in a ZF6 or other 6spd? or is there a 5speed automatic that could handle it?
thanks
[Modified by yoslambo1@cs.com, 11:48 PM 4/18/2002]
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Re: Best Automatic tranny for high hp? (vader86)
Hi vader86,
Don't be too hasty to discount your 700R4. I'm probably harder on my 700 than most are on theirs. Over the last 6 years I've averaged over 250 passes each year. Although I do freshen it up each year, it has withstood the rigors of 400+ HP. The 3-4 clutch pack is pretty much toast by 250 passes....keep tuned to what the tranny is doing when shifting 2-3 and 3-4 (you will have to lift to get it to shift into 4th). If you don't subject it to the kind of abuse that I do you should be OK for a long time. Good luck with your project!!! :)
Don't be too hasty to discount your 700R4. I'm probably harder on my 700 than most are on theirs. Over the last 6 years I've averaged over 250 passes each year. Although I do freshen it up each year, it has withstood the rigors of 400+ HP. The 3-4 clutch pack is pretty much toast by 250 passes....keep tuned to what the tranny is doing when shifting 2-3 and 3-4 (you will have to lift to get it to shift into 4th). If you don't subject it to the kind of abuse that I do you should be OK for a long time. Good luck with your project!!! :)
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Re: Best Automatic tranny for high hp? (ODennis)
ODennis - You said that you have to lift to shift 3-4. I was trying to think if I have to. :confused: With my 5000 rpm gov. I'm sure that it does.
700's can be built with a warranty for 850 hp. I put allot of bad miles on mine and I can tell that the 2-3 shift isn't as snappy as it used to be. At the drag races the 6800 rpm gov. was hitting the 7000 rev limiter sputter a few times. It's probably better for the rearend like that anyway. :seeya
700's can be built with a warranty for 850 hp. I put allot of bad miles on mine and I can tell that the 2-3 shift isn't as snappy as it used to be. At the drag races the 6800 rpm gov. was hitting the 7000 rev limiter sputter a few times. It's probably better for the rearend like that anyway. :seeya
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From: Coral Springs Florida
Re: Best Automatic tranny for high hp? (vader86)
You might want to check my thread in C5 Tech regarding my rebuilt "bulletproof " 4L60E rebuilt transmission.:yesnod: http://forums.corvetteforum.com/zerothread?id=282720 :eek:
