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I have a Quaife on my Taurus SHO which is FWD.
It is a torque biasing differential as opposed to a limited slip. That means the torque is transferred to the wheel with grip (the outside wheel in a turn) and its does work very well. By applying throttle you can actually pull the nose of the car around if there is grip.
You will get more torque steer in lower gears. For example, if you plant the throttle the power will go to the wheel with traction until it spins, then the grip will immediately transfer to the other wheel. In some situations the grip kicks back and forth, making for some wild reactions. However, you get used to it pretty quickly and adjust your driving style.
Taurus? To bi bio Ford, jel? Evo kaj Quaife veli za novi Focus RS (u koji se njihov LSD ugrađuje serijski):
Differential technology from Quaife has helped Ford overcome one of the most challenging aspects of high performance Front Wheel Drive (FWD) cars. With its 2.5 litre five cylinder turbocharged engine producing 300bhp (305PS) and 324lbft (440Nm) of torque, the new Focus RS is one of the most powerful front wheel drive production cars ever, yet it's combination of Quaife Automatic Torque Biasing differential and new Ford RevoKnuckle suspension allows beautifully weighted steering with almost no torque steer, even under full acceleration out of corners.
http://www.quaife.co.uk/Ford-selects-Quaife" onclick="window.open(this.href);return false;
Evo i opisa kako to radi:
Sets of floating helical gear pinions mesh to provide the normal-speed differential action. In the event of wheel slip, torque bias is generated by the axial and radial thrusts of the pinions in their pockets. The resultant friction forces enable the differential to transmit a greater proportion of the torque to the appropriate wheel. The effect is progressive and at no stage does the differential lock solid, hence the inherent safety and user-friendliness of the QUAIFE ATB Helical LSD unit.
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To the driver, especially of a front-wheel drive car, the results are significant performance improvements; superior, controllable traction without the harsh steering wheel snatch or torque steer that have long been associated with performance differentials.
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These traction benefits can also be utilised in rear-wheel drive vehicles, while QUAIFE ATB Helical LSD units offer significant traction advantages when fitted in the front of four-wheel drive cars.
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Suitable as an ideal replacement for any front, rear or four wheel drive application, this ATB Helical LSD differential has the added benefit of no adverse effect on the steering of a front wheel drive vehicle.
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The characteristics of the differential are that it progressively locks as torque increases; there are no plates or clutches to wear out, unlike the more conventional limited-slip designs. The ATB Helical LSD differential is particularly effective in combating the effects of FWD torque steer (tj. otimanje volana) and understeer (tj. bacanje van iz zavoja).
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Sets of floating helical gear pinions mesh to provide the normal-speed differential action. In the event of wheel slip, torque bias is generated by the axial and radial thrusts of the pinions in their pockets. The resultant friction forces enable the differential to transmit a greater proportion of the torque to the appropriate wheel. The effect is progressive and at no stage does the differential lock solid, hence the inherent safety and user-friendliness of the QUAIFE ATB Helical LSD unit.
http://www.quaife.co.uk/What-is-a-Quaif ... fferential" onclick="window.open(this.href);return false;