Well, as you know or don't know the Tremec 3650 is only quoted for 360 ft lbs of torque.

http://www.ttcautomotive.com/English...ts/TR-3650.asp

However according to an article from Transmission Digest:

So how many are running the stock trans, and what issues - if any - have you had? Also, if you don't mind - please put in how about how many miles you had since your SC was installed. That way we know when these issues could arise.

 

Not sure about how many miles I've put on it after the whipple install, but I have around 100 passes or so (on MT ET Streets) at the dragstrip since it has been on (prob about 150 passes before it was installed). I haven't had any serious issues with it besides crapping out the 3rd gear synchro, but that happened before the blower (power shifting at the track). Seems to be pretty strong, considering how much I beat the hell out of it. I've blown up a heavy duty aftermarket clutch shifting into 4th gear at the strip, and the tranny held up like a champ.

 

I just bought a vortech s/c and would also know what other people think about this. How long will the stock transmission last if you have around 400ft-lbs?

 

Installed my Saleen in May of last year and about 5,000 miles so far with no issues.

 

I was told by my tech that the tranny is a work horse and should not have any issues with SC applications.

 

I've been running my S/C on the stock clutch & transmission for more than 20,000 miles with no issues what so ever.

 

Stock clutch and tranny here... No issues

 

14,000 miles since the blower, 26,000 on the car. If you don't try to power shift, then I doubt you will have an issue. My stock clutch lasted me 8,000 miles before the slipping became dangerous.

 

Stock trans with RST clutch. Trans is running like a champ for 13k SC miles.

Only weak point is the input shaft. You can upgrade it but not worth it under 500rwhp from what I have read.

Basically dont worry about your trans it will be fine.

 

What's the ballpark for a RST clutch parts & labor?