Racelogic Traction control is universally recognised as the best after market system available, as it not only dramatically reduces the chances of an accident, but it also positively enhances acceleration. This is why companies like Aston Martin and Lotus Cars choose to fit the system, as unlike any other system, it always improves the performance of the vehicle. After fitting the system, the car becomes more fun to drive than before, giving the driver new levels of confidence in pushing the car to it's limits without ever over stepping the mark.

traction control 20 % slip                                       10 % slip                                                             0 % slip

PRICES AND OPTIONS (stand 01/2009)

BASIC SYSTEM

The unit works on cars with ABS and up to 6 cylinders. If launch control is not required, it will work with up to 12 cylinders. This unit has a 6-position adjuster for selecting the degree of traction control (degree of over steer for RWD and under steer for FWD).
Settings :  WET (0%) /  DRY (5%) / 10% / 15% / 20% / OFF

DIGITAL ADJUSTER

Featuring a backlit LCD screen and simple rotary selector button, packaged with a billet aluminium faceplate, the Digital Adjuster controls slip levels but can also be used as a setup and diagnostic tool, and features many display and configuration options.

Slip levels are adjustable in 1% increments from 0% up to 25%, and launch control comes as standard. Cut level thresholds, rev limits, wheel sizes and RPM operating levels can all be altered in real-time. The display option will represent, in a graph or text format, wheel speeds, RPM, and cut levels. In addition an injector cut feature allows diagnostics to be carried out without the use of a laptop computer.

The adjuster can be added to an existing Traction Control setup as an upgrade, or as an existing component of a new system.

LAUNCH CONTROL

Launch control is a function within the Traction Control system designed to automate standing starts to maximise the initial acceleration.

It is activated by pressing a button on the dashboard when the car is stationary. This will bring in a secondary rev-limit (for example 4000 rpm).

There are various parameters you can tune if you want to get the last little bit of acceleration out of the system. You can have two switchable levels for wet and dry, the level of wheelspin at which the system swaps from Launch Control to traction Control can be adjusted, and on the professional system you can even switch to a lower limit once the car starts to move.

DATA LOGGING

This unit has a battery-backed memory, and will data log all 4 wheel speeds, engine RPM and traction control status. Suitable for competition vehicles, it is an ideal method of comparing two different runs to see which is quicker and why.

The Data Logging option allows the unit to permanently record the wheelspeed, engine revs and traction control activity. The resolution of the information can be varied according to the length of each run, ensuring that maximum accuracy can be achieved.

FULL THROTTLE SHIFT

The full throttle gearshift system is activated by a switch fitted to the clutch pedal, either a hydraulic switch or a mechanical switch. Once the clutch is depressed, the system automatically drops the engine revs down by using a momentary rev-limit, allowing the next gear to be selected without lifting off the throttle. Because the throttle is always fully depressed, the engine is instantly back on full power, and on a turbo car the turbo is still producing boost. Tests have shown up to 0.1 seconds can be gained per gearchange.

SPARK CUT INTERFACE

The Spark interface unit allows Racelogic Traction Control to be fitted to a car without electronic fuel injection. The system can drive up to two separate coils, and interrupts the original signal going to the coil, and allows the Traction Control system to selectively miss-fire set cylinders.

The unit will automatically cycle the cylinder cut so the plugs do not foul. The more reduction in power that is requested from the Traction Control unit, the more cylinders are cut. The effect is from a mild miss-fire, through a soft-cut rev-limit to a total cut.

WHEEL SPEED SENSORS

The exact method used to locate and trigger the wheel speed sensors is absolutely critical to the correct operation of the Traction Control System. There are a number of different ways to construct the pick-ups, the easiest being the bolt detection method. The TC system needs a minimum of four pulses per revolution, there is no maximum. There can be a different number of pulses from front to rear, but not between left and right across the same axle. Eg. 34 teeth at the front and 4 teeth at the rear is fine, 34 left front and 4 right front will not work.

The sensor works by detecting the presence of a ferrous trigger point. Mount the sensor at a gap of 1mm from the hub bolts / disc bolts. The head of the bolt must be flat, a cap head will cause a double trigger as it picks up each side of the head. Turn the hub slowly and check the gap never grows bigger than 1mm from any of the bolts. The sensor must be rigidly mounted so no large vibrations occur that will move the sensor head more than 0.8mm away from the reference points and the head must be at 90° to the surface. If a sensing plate / disc is used, it must not be warped or mounted at an angle that would cause the distance between the head and disc to change by more than ±0.5mm. The material used for the reference must be of a ferrous type, if in doubt, check to see if it attracts a magnet. The reference can be painted or plated.

For more technical information look at the website www.racelogic.co.uk  division traction control