Upper Horsepower Limits for the T-56

Twinscrewd · November 15th, 2012, 07:12 PM

I've seen some with 1000 to the wheels with the stock T56? Anyone pushing any higher and it still holding up?

I don't plan on doing any mile or 1/2 mile events, just some trips to the track and highway pulls....

Dirtysocks · November 15th, 2012, 07:16 PM

I was pushing over 1200 on a beaten t56. just dont launch hard, and no slicks!

Twinscrewd · November 15th, 2012, 07:18 PM

That's up there... good to know!!

brentsGTS · November 15th, 2012, 07:37 PM

I did 693 rwhp in my 04 cobra. Same tranny basically but with a 10spline input shaft. I've seen 900 beaten on. Idk if that counts for you lol.

Twinscrewd · November 15th, 2012, 07:51 PM

Any input is appreciated... Yeah, different tranny, but that's still a few ponies!!

The Former PFR · November 15th, 2012, 09:08 PM

Depends on the torque more than HP. Other than that, I don't think there is a number. Seems like there are a million factors at play as well as just plain, dumb luck.

Disturbed 01 · November 16th, 2012, 08:09 AM

Quote:

Originally Posted by The Former PFR

Depends on the torque more than HP. Other than that, I don't think there is a number. Seems like there are a million factors at play as well as just plain, dumb luck.

Agreed. I've busted a 100% stock T56 in a heads/cam car.

But the flip side to that is I've also had another 100% stock T56 in a heads/cam car that never had issues.

AndyMac · November 16th, 2012, 10:31 AM

I believe the biggest issue is fluid moving away from the front gear set as you accelerate, and over time this weakens the gears, which then eventually fail. Setting up a pump system to keep fluid on the front gears will help, but the trans still has a limited life span behind big hp.

I don't "abuse" my tranny, but I gernaded my input shaft drive gear and the driven gear just doing a gentle 3rd gear pull on the high way. My datalogger claims 928wtq at the time of the "incident".

I've contemplated G-Force upgrades and other stuff, but people are destroying them as well, so I think the 6060 is the best bet. Shifts better/smoother, and seems to be stronger.

SixFootSix · November 16th, 2012, 10:33 AM

My new ride. Transmission? - Viper Alley - Dodge Viper Forum -2013 SRT Viper

Simms · November 16th, 2012, 11:19 AM

I shit out a stock unit with Roe and slicks. Messed the gears in an RPM built 56 with current TT doing nothing crazy. All depends, I've seen stockers hold many TT's for a while.

steelskeet · November 16th, 2012, 12:45 PM

Ive been through 2 so far. 1 stock tranny and 1 "built" tranny on my Roe car.

I think its luck of the draw. RSi is about to install my third tranny in the next few weeks.
Its built by Rockland Gears. The loaner transmission that I am running now seems to work great and its stock. It actually feels better than the built one that I tore up. Go figure.

Twinscrewd · November 16th, 2012, 02:40 PM

Seems either you have a good one or you don't and mostly dependent on driving.

I'll see how this one does and hopefully I'm one of the lucky ones.

Sounds like the replacement tranny end up being the 6060. I'm sure prices will change later down the road, but whats the cost to do the conversion?

BigBadViper · November 17th, 2012, 10:17 PM

I am on my third G-force. 1000+ HP.

Next move is a TH400

Alkybanshee · November 18th, 2012, 08:58 AM

I don't think there's a magic number. I think it's just a matter of time. I've broken my t-56 twice and it's whining again now. 6060 is on the way!