how much hp can a 700 r4 hold up to before i have to upgrade?

thanks

 

Not much. 250whp tops

Mines just been recently refreshed with stock parts, and im pretty scared to really launch it, im probably pretty close to the limits.

Could try adding a tranny cooler and making sure its got plenty of fluid and a fresh filter and thatll go a way in helping it survive. Also Corvette Servo will help too. And if youre going to step on it, dont do it in overdrive

 

I would think that a 700R4 could really handle anything if its built properly. Seen alot of guys on Pinks using a 700R4 in 500hp+ drag cars. But if you're looking for something more down to Earth, I'd say about 200rwhp before you need a beefier 700R4. I've heard several people say they sheared off the stock input shaft and/or drum on a mildly modded motor. Hughes makes an HD 700R4 that looks to be able to handle everything short of a pure drag car, but its almost double the cost of a regular 700R4 ($2600 vs. $1700).

http://store.summitracing.com/partde...5&autoview=sku

 

Pro-Built automatics has the best 700r4 out there. The guys on pinks with 500hp are definitely not running stock 700r4s.

 

Thats exactly what I was saying. The 700R4 can be built to handle just about anything, but a stock one isn't really good for much over 200rwhp.

 

It's been a while since I rebuilt with Dana's best kit for my 700, but I considered switching (I have a 4L80 in the garage). Things to consider with a change away from the 700- overall trans dimension changes and effect on driveshaft, crossmember, torque arm, overall lower ground clearance, other stuff under there including trans tunnel mods maybe. Will you need a trans computer. What impact will the gearing change have (it may not be what you want). 4L80 is heavier too.

I'm not clear what your comment about staying with TPI has to do with it tho?

 

im getting the one from my 88 iroc rebuilt right now . he said it will handle 700 hp so 600 whp