Built 700r4 Help
Built 700r4 Help
I'm going to be acquiring an 86 Trans Am in the near future, and I'm planning on a 350 at plus 30 thousandths with an output of around 325hp at the rear wheels. I'm also planning on a 200 shot NX nitrous kit for the track.
I have done some research and have found out that the pre-88 700r's are significantly weaker than the later models. What kind of upgrades do i need to bring it to the later spec, and from there, is there an upgrade kit or recommended modifications for bringing a 700r4 up to par for handling 475-500hp?
note: I plan on using a B&M console megashifter.
thanks for the help.
I have done some research and have found out that the pre-88 700r's are significantly weaker than the later models. What kind of upgrades do i need to bring it to the later spec, and from there, is there an upgrade kit or recommended modifications for bringing a 700r4 up to par for handling 475-500hp?
note: I plan on using a B&M console megashifter.
thanks for the help.
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Joined: Aug 2004
Posts: 1,367
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From: Nanticoke, Pa
Car: 89 Firebird
Engine: 406 CI
Transmission: Pete K 700R4
Axle/Gears: 3:55
Re: Built 700r4 Help
The pump in an 86 is only 7 vane. Upgrade it to 10 vane. Upgrade the 26 element sprag to 29 element and upgrade the lo-roller clutch as well. New accumulator pistons are recommended too.
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