Allow your Mini Cooper S to use all the
power it has and effectively put it down to the ground with the
Quaife Torque Biasing Differential.
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 Torque Biasing Differential, however, does just the opposite. It
which wheel has the better grip, and sends the power to that wheel. It
does this smoothly and
constantly, and without ever completely removing
power from the other wheel. Doing this allows your Mini Cooper to
maintain better traction providing for
improved cornering and quicker acceleration.
Quaife Torque Biasing Differential Benefits
Reduced wheelspin under
- Smooth and
- Relies on
gears rather than clutches for operation
- The Mini Cooper Quaife Differential
never locks harshly with a set pre-load of wheel slip across the
driven axle, like a conventional LSD. Rather, it automatically biases
the torque away from the spinning wheel across the axle, to a
constantly varying degree, and never locks.
- The Quaife Torque Biasing Differential has many benefits over a standard open
differential, including maximizing traction and minimizing wheelspin,
eliminating torque steer and snatching in front wheel drive cars
compared to conventional LSD units, and a maintenance-free design
which retains the standard oil lubrication.
Essentially Quaife is a
one-stop-shop for transmission components, and with the
facilities they have, many smaller car companies already
take advantage and use Quaife products.
Quaife has learned a huge amount from all of their years in
business. This has been enhanced by the hands-on approach to
developing Quaife products and technology through racing.
Testing and developing Quaife products through motorsport
has always been a key part of the business, since the early
days of R.T. The rich heritage of success in competition
includes innumerable race victories and championship
successes all over the world, not only on four wheels but
also two wheels, and both on race circuits and off road.
Ford Focus RS would not have been such a success without the
use of a Quaife Automatic Torque Biasing Helical LSD
differential as a standard part, fitted direct from the
The initial "press" cars were not fitted with a Quaife ATB
Helical LSD differential, and many journalists were less
than polite after their drive!
After much development work, the Quaife ATB Helical LSD
differential was found to virtually eliminate the torque
steer and understeer that was suffered by the early models,
and it was also then used as a standard factory-fitted item
on all production models.
Over 35,000 Quaife ATB Helical
LSD differential units have already been sold as original
equipment, and the clean warranty record complements the
quality of the product itself. This is of course supported
by Quaife's ISO 9001 approval.
This covers every use from
utility vehicles, to road cars, to track cars, to rallying,
racing and drag racing, and no doubt many other uses.
Quaife already has over four
years experience working with the big three global car
manufacturers, Ford, General Motors and Daimler Chrysler,
and the results speak for themselves. Together with these
results, Quaife's reputation gained from 43 years as
industry leader speaks volumes.
Quality is a consistent theme that runs through every
part of Quaife Engineering's activity. Quaife's quality
standards are subject to constant improvement and the
company is ISO9001 2000 accredited. Furthermore Quaife
Engineering is currently working towards the latest industry
standard ISO 9000 TS16949-2000 standard, which it expects to
secure by the end of 2007.
What is a
Quaife ATB Helical LSD differential
Automatic Torque Biasing Helocal LSD differential
is Quaife's unique patented design, and is an after-market
differential that provides smooth, constant traction for
racing or slippery road conditions.
Suitable as an ideal replacement for any front, rear or four
wheel drive application, these ATB Helical LSD differentials
have the added benefit of no adverse effect on the steering
of a front wheel drive vehicle.
Quaife ATB Helical LSD differentials have been used in a
wide array of applications, from Formula 1 cars to emergency
and public utility vehicles, where all weather mobility is
essential, and where the product must perform in the most
demanding of conditions.
Available to suit a very wide range of vehicle applications,
from Alfa Romeo to Volkswagen and including Ford, BMW,
Honda, MG & Rover, Vauxhall/Opel, as well as a range of
light commercial vehicles.
The characteristics of the differential are that it
progressively locks as torque increases; there are no plates
or clutches to wear out, as the more conventional
limited-slip designs incorporate. The ATB Helical
LSD differential is particularly effective in combating the
effects of FWD torque steer and understeer.
Quaife Engineering also offer their ATB Helical
LSD differential with a limited lifetime warranty [see
terms and conditions], as a demonstration of the quality
of the product.
The Ultimate Differential
The Quaife Automatic Torque Biasing Helical
LSD Differential enables your car to accelerate quicker and
corner faster. How?
Simply by getting the power to the ground!
The Quaife differential powers both drive wheels under
nearly all conditions, instead of just one.
With an normal open differential, fitted as standard on most
cars, much precious power is wasted through wheel spin under
acceleration. This happens because the open differential
shifts power to the wheel with less grip - along the path of
The Quaife differential, however, does just the opposite. It
senses which wheel has the better grip, and automatically
biases the power to that wheel. It does this smoothly and
constantly, and without ever completely removing power from
the other wheel.
In cornering, while accelerating out of a turn, the QUAIFE
biases greater 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 differential also controls loss of traction when
the drive 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 ATB
Helical LSD differential provides constant and infinitely
variable drive. Power is transferred automatically without
the use of normal friction pads or plates seen in other
The Quaife ATB Hleical LSD differential's unique design
offers maximum traction, improves handling and steering, and
puts the power where it is needed most. A definite
advantage, whether you are on the track or on the street.
The Quaife differential is extremely strong and durable, and
since it is gear-operated, it has no plates or clutches that
can wear out and need costly and regular replacement. There
is no maintenance required to the unit, so once installed
the unit can be forgotton, apart from the better road
The Quaife differential 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 cars towards its
The Quaife differential is proven in everything from SCCA
Rallying to drag racing and Formula 1. It provides
autocrossers with such an advantage, it has become
"required" equipment for a winning effort.
Expand your vehicle's limits with the Quaife ATB Helical