Torsen Differential questions

[unrealford]

I had someone share a video of me at the strip. I was warming up the drag drag radials and noticed both tires spinning, then just one. Isn't the Torsen supposed to lock alittle better then a clutch type diff?

 

[VTBoss302]

The Torsen is a gear driven torque sensing torque biasing differential

The torque bias on the boss is 2.7 to 1

It does not lock

In order for it to send more torque from one wheel to another there must be some traction available to both wheels

Otherwise, it will behave like an open diff (0 torque at one wheel x 2.7 = 0 torque bias)

 

[steveespo]

The Torsen does not due well under shock load drag strip launches. It will break, and relatively quickly. A Traction Lok is an OK choice for stock power levels, but a Detroit Locker or a TrueTrac is a better choice for the 8.8. The best thing for a drag car is a 9" swap with a Detroit Locker for the street or a spool for drag track only. With the 9" it's easy to have both, and multiple gear ratios for swaps. Search eBay and RacingJunk.com for used Sprint Cup pumpkins, you can get good deals on super strong, high buck setups. Currie Enterprises makes bolt in housings for about $1300.
Steve

 

[unrealford]

The Torsen does not due well under shock load drag strip launches. It will break, and relatively quickly. A Traction Lok is an OK choice for stock power levels, but a Detroit Locker or a TrueTrac is a better choice for the 8.8. The best thing for a drag car is a 9" swap with a Detroit Locker for the street or a spool for drag track only. With the 9" it's easy to have both, and multiple gear ratios for swaps. Search eBay and RacingJunk.com for used Sprint Cup pumpkins, you can get good deals on super strong, high buck setups. Currie Enterprises makes bolt in housings for about $1300.
Steve

Thx Steve great info

 

[203 Boss]

Sorry to thread jack but has anyone heard of a boss or gt with torsen rear end breaking from drag launches

 

[BLAZN BOSS]

Sorry to thread jack but has anyone heard of a boss or gt with torsen rear end breaking from drag launches

If you Google image that topic you will see plenty of tore up torsens

 

[seca954]

Sorry to thread jack but has anyone heard of a boss or gt with torsen rear end breaking from drag launches

I didn't break the Torsen but I bent my axels.

 

[NGOT8R]

Has anyone tried or know of anyone running a Hitmaster Clutch Hit Control System on their Torsen equipped Mustang? If so, has anyone come up with a good baseline setup on the adjustment and how do you like it overall? Has the Torsen held up well at the drag strip?

I installed one in my 2019 Bullitt and in just two track outings, managed to burn up my clutch, due to improper adjustment of the system, as I didn’t know where to start and had vague tech support. The system is very nice and I plan to stick with it. I will also try reaching out to the GM community for help in dialing it in once I reinstall the drivetrain in my car, since there are more than a few users running them successfully. I was able to do 7400 rpm launches and despite improper adjustment, the system did not shock the drivetrain at all. Unfortunately, the best et that I could muster was a 12.30 @ 116. Here are some pics of the setup. I’m looking forward to getting it dialed in properly when the car is back on the ground and will report back.