The Mustang Forum for Track & Racing Enthusiasts

Taking your Mustang to an open track/HPDE event for the first time? Do you race competitively? This forum is for you! Log in to remove most ads.

  • Welcome to the Ford Mustang forum built for owners of the Mustang GT350, BOSS 302, GT500, and all other S550, S197, SN95, Fox Body and older Mustangs set up for open track days, road racing, and/or autocross. Join our forum, interact with others, share your build, and help us strengthen this community!

Torsen Differential questions

unrealford

Mustang owner since 84
521
0
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?
 
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

Lord knows I'm a Voodoo Child
Moderator
3,752
1,223
Exp. Type
Time Attack
Exp. Level
10-20 Years
NY Metro
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

Mustang owner since 84
521
0
steveespo said:
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
 

BLAZN BOSS

203 Boss said:
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
 

TMO Supporting Vendors

Top