Enhanced No-Load Bias Ratio via Wave Design Center Pack
One of the known shortcomings of a typical torque biasing differential is its loss of drive (behaving much like an open diff) under zero or near-zero torque conditions (for example, when there is ‘no-load’ applied through the drivetrain, either at vehicle stationary and/or transition from engine driving vehicle to engine braking and back).

The Wavetrac® differential uses a patent pending design to improve grip in low traction conditions. Precisely engineered, converging / diverging wave profiles are placed on one side gear and its mating preload hub. As the two side gears rotate relative to each other, each wave surface climbs the other, causing them to move apart. This imparts an increased normal force through the side gears, increasing the bias ratio as a function of load. This increase occurs automatically only when conditions find it necessary, and it ‘reverts’ back to its nominal bias ratio quickly and seamlessly, maintaining optimal drivability and performance at all times. It’s like having two differentials in one: you get the benefit of a higher bias ratio when needed without detriment to the car’s handling.

Interchangeable Friction Plates Provide Controlled Bias
Here’s something else you won’t find in any other design:The Wavetrac® differentials behavior can be altered in the field to suit your needs. It comes standard with carbon-fiber bias plates for the best all around performance. Interchangeable plates using materials with different friction coefficients to fine-tune the bias ratio are sold separately.

These friction plates provide a mechanism to tune the response of the differential as a function of applied torque load. The applied torque load manifests itself as an axial load from the differential pinions into the housing. This axial force is then considered a normal force into the friction plate, and as a function of the effective coefficient of friction, will provide a resistive torque to the rotational motion of the differential pinions. The resistive torque will add to the resistance of relative rotation of all components within the differential. The resistive force, however, is non-uniform since it is a function of the axial load from the differential pinions. The unbalance of the resistive torque will manifest as non-uniform energy absorption within the differential causing a bias ratio.

Superior Design, Materials, and Construction
Designed from a clean sheet, the new Wavetrac® Differential brings current gear technology to the market. Internally, its gear tooth forms are optimized for strength and improved oil film retention over competitive designs. Our gear package is smaller, reducing overall mass, yet is more durable. Attention was also paid to the side gear/axle interface, putting as much material thickness as possible in this critical area - most important when power levels get high.

Each Wavetrac® Differential is crafted from the highest quality materials available. The internal gears are made from high strength 9310 alloy steel. The diff bodies are machined from case hardened steel billet. To complete the package, every Wavetrac® differential is built using high quality, high strength fasteners exclusively from ARP®, the world leader in fastener technology.

For More Information Contact:

Autotech
29 Journey
Mission Viejo, CA 92656
949.240.4000
www.autotech.com

Now, there is an answer to this question: the TÜV Rheinland Group’s Pedestrian and Passenger Protection Laboratory
in Cologne now offers conclusive and officially accepted test methods. As one of the first in the tuning industry, ABT Sportsline submitted themselves to this time- and material-consuming and conclusive method. The result: The add-on parts by the world’s leading tuner of cars by the VW group are not only sleek, but also safe.

During spectacular tests, dummy legs weighing about 15 kilos hit the ABT vehicles AS4, AS5 and Tiguan at a speed of 40km/h and demonstrated best possible performance regarding risk of injury. “We are proud to have stayed well below the maximum values prescribed by law. That shows once again that our products meet highest quality standards”, emphasizes Hans-Jürgen Abt.

It has been a tradition of this long-established Kempten-based company to spare no effort whenever it comes to offering the client a premium product complying with the most recent safety standards. And as requirements by law and regulations constantly change and also people have ever increasing demands concerning active and passive safety, already today the engineers with ABT are thinking about solutions to the challenges of tomorrow.

So, it’s only logical that products which comply with highest safety regulations and are manufactured according to highest standards cost a little bit more, as they are the result of constant development. Buying a car or add-on components from Kempten means getting fully developed technology. ABT stands for driving pleasure in its most beautiful and safest form.

Depending on modifications, numbers can also improve. But already these are impressive numbers for an easy bolt on improvement.

This performance part is intended to use on off-road and race use only. It’s not legal for use on pollutin controlled vehicles. This intake manifold is suitable to Golf, Jetta, Audi TT 180hp and Bettle with some restrictions.

Compared to a stock manifold the runners are HUGE!, the plenum is also quite a bit larger.

ABD Racing has offered performance upgrades for VW and Audi vehicles for over 15 years. Its products for the 1.8T and 2.0T engines are designed to enhance the engines’ performance characteristics while maintaining factory reliability.

Perfect fitment is guaranteed. Kerscher products come with all necessary hardware for installation and include installation instructions in English. Included in the full body kit are:
Complete ABS Plastic Front Bumper sport edition by Kerscher Tuning, with spoiler splitter.
Complete ABS Plastic Rear Bumper by Kerscher Tuning.
Sideskirts

For improvement of the looks and also the sound of the engine, there is a complete exhaust system, stainless steel, pipes 4×76mm

However, Allard Motor Company have found that customers want the aesthetic appearance that is associated with the front mount intercooler Kit Allard produces, so subsequently they have now available only an aluminium pipe upgrade that connects to the original intercooler.

The kit contains the upper and lower boost pipes along with all the connecting hoses and fixings, basically everything needed to make the job of fitting as simple as possible. Also included in the kit is the EGR replacement pipe. This replaces the standard diaphragm that attaches to the inlet manifold, which re-circulates exhaust gasses back into the inlet system to control emissions; this unfortunately reduces power and inhibits the air flow in to the engine. The Allard EGR replacement kit therefore removes the restriction of the factory part and gives a slight power increase, in addition to looking the part too.

You can find more details about the pipe upgrade, the complete intercooler kit and other conversions on the Allard Motor Company website.