Torsen vs Clutch LSD
One major advantage of both the Quaife (Torsen style) and ZF (clutch type) Limited Slip units is that they replace the fragile Opel spider and side gears with much stronger components. These are the first bits to 'blow' when wheel spinning an Opel diff.
More LSD info:
Torsen Type: Superior torque rating of both the diff and the ring/pinion over the early unit. If longevity is an issue the Torsen is hands down the winner since it will also never wear out. It's action is superior to the clutch type LSD's for auto-X situations because it is basically an open diff until about 2/3's the way through the corner then it locks the *outside* wheel to about 40-45%. The Torsen action helps prevent a push in super tight corners. The one downside of the Torsen is that if one wheel is completely off the ground (zero traction) then the charactoristics of the Torsen will make it basically an open diff, both wheels have to have at least some traction for the unit to function properly. .
Competition Clutch Type: Not all that great in auto-X situations because it can cause a push at corner entry and power-on corner exit since it is always in a lock state. Better for drag launches and track events where you will be accelerating in more of a strait line than in auto-X.
The Torsen T2-R upgraded unit does deal with one-wheel loss of traction now.
Torsen T2R
Torsen's T2R RaceMaster Traction Differentials are ideally suited for rear wheel drive, truck, SUV, C-Clip, and high performance applications. The patented EQUVEX™ parallel axis gear configuration provides better management of gear separation forces resulting in low backlash and quiet operation.
Unlike conventional speed-sensing, limited slip differentials, TORSEN T2-R is a full time torque sensing, torque biasing system. Torque and differentiation are continuously managed between the two axles and biased instantaneously according to variable road conditions. TORSEN T2R's patented parallel gearing system is designed to perform for the life of the vehicle.
The addition of preloading to the TORSEN T2R allows the differential to remain locked, providing torque to both wheels under low torque inputs. This allows improved mobility and traction under extreme conditions. TORSEN T2R can be built with or without clutches which allows the Torque Bias Ratio (TBR) to be tailored to individual needs. In addition, it is compatible with electronic traction control, providing the ultimate in traction management systems.
MULTIFUNCTION CAPABILITIES
The TORSEN T2R is an advanced multifunction traction differential providing continuous, uninterrupted torque output, torque biasing, and differentiation in one integral unit. Since it is preloaded, it is capable of remaining locked with low torque inputs, enhancing traction and mobility under extreme split µ conditions. It is always active, responding instantly to torque feedback from variable driving conditions.
ENHANCED AND COMPETITIVE PERFORMANCE
The TORSEN T2R's capability to immediately respond to variable road conditions not only provides better traction, it also enhances the general performance of a vehicle. There is a marked improvement in total tractive effort as compared to open or conventional limited-slip differential equipped vehicles. In addition, the exceptional efficiency of the T2R allows the engine's torque output to be used more effectively, delivering more horsepower to the road. The combined improvement in traction and the augmented power results in a nimble yet sure-footed vehicle that provides better handling, increased acceleration and an improved margin of safety.
T-2R APPLICATIONS
Due to the preload springs, the TORSEN T-2R will stay locked with low torque inputs. This allows the vehicle to maintain drive, and thus momentum and mobility, during extreme conditions such as inside wheel spin or lift in a corner, or starting from a complete stop on split µ grade. When the ring gear torque overcomes the preload, the unit will differentiate and bias normally, behaving like a conventional Torsen T-2. This is particularly useful to drivers who compete in road racing and autocrossing, as well as drivers of unladed pickup trucks, or SUVs who have to deal with poor weather conditions, or an occasional off-road trail, or for anyone who wants the best traction possible for their street car.
HTH
sprinting from one light to an other are we?? :yup: :haha:
