2008+ Elise models with 1.6L 1ZR and 1.8L 2ZR engines (with or without supercharger) – non-US market – 6-speed only
2014+ Corolla/iM 6-speed
Toyota vehicles in other markets with 1ZR or 2ZR engine and 6-speed manual transmission
This differential is MWR’s choice for all street and most track applications.
- No noise
- Relatively easy install
- Never wears out, lifetime guarantee against wear and breakage
- No adjustments needed
- smooth engagement
- No special oil needed
- Better and more predictable turn-in
The only reason to choose a clutch type differential over a torsen (Quaife) type differential is if you frequently get a drive wheel up in the air, such as in rally racing or when bouncing over large curb sections on road courses.
The Quaife torque biasing differential enables your car to accelerate quicker and corner faster. How? By getting the power to the ground! The Quaife Differential powers both drive wheels under nearly all conditions instead of just one. With an ordinary open differential, standard on most cars, a lot of precious power is wasted during wheelspin under acceleration. This happens because the open differential shifts power to the wheel with less grip (along the path of least resistance). The Quaife, however, does just the opposite. It senses which wheel has the better grip, and biases the power to that wheel. It does this smoothly and constantly, and without ever completely removing power from the other wheel.
In drag-race style, straight-line acceleration runs, this results in a close to ideal 50/50 power split to both drive wheels, resulting in essentially twice the grip of an ordinary differential (they don’t call open diffs “peglegs” for nothing).
In cornering, while accelerating out of a turn, the Quaife biases power to the outside wheel, reducing inside-wheel spin. This allows the driver to begin accelerating earlier, exiting the corner at a higher speed.
The Quaife also controls loss of traction when the wheels are on slippery surfaces such as ice and snow or mud, providing the appropriate biased traction needed to overcome these adverse conditions. The Quaife Differential provides constant and infinitely variable drive. Power is transferred automatically without the use of normal friction pads or plates seen in other limited-slip designs. The Quaife’s unique design offers maximum traction, improves handling and steering, and puts the power where it is needed most. A definite advantage whether on the track or on the street.
The Quaife is extremely strong and durable and since the Quaife is gear operated, it has no plates or clutches that can wear out and need costly replacement. The Quaife is great for street driving or racing. Racers don’t have to put up with locking mechanisms or spools that tear the steering wheel out of their hands when cornering. Because it behaves like an open differential during ordinary driving, street drivers will have trouble telling it’s there until pushing the car’s limits.
The Quaife has been proven in everything from SCCA Rally to Formula 1. It provides autocrossers with such an advantage, it has become “required” equipment for a winning effort.
Every Quaife ATB Differential comes with something else other’s don’t have: a Limited Lifetime Warranty. This warranty applies even when raced !
New differential bearings and axle seals are strongly recommended for this install. This kit is available through MWR separately- see link.