TECH INFO

These set-up instructions give basic advice to beginners individual set-up preferences may improve the cars performance further

SECTION 1
Tyres

Tyre Additive

Suspension

SECTION 2

Cells

Constant Current Chargers

Trickle Chargers

Reflex Chargers

Constant Voltage Chargers

Pulse Chargers

Charger Tips

Battery Maintenance.

 



TYRES ( Foam)

If you can adjust the damping of your car then follow the kit instructions for medium damping settings using a piston of few or small diameter holes with silicon oil of around 30 Weight, this allows the car to roll a little in the corners to help combat sliding tyres but keeps the inside tyres in firm contact with the carpet for grip and traction. If the car rolls too much and one or both of the inside wheels lift off the carpet fit stiffer springs to that end or try adding an anti-roll bar (stabiliser) if the lift is very minimal

The Ride-height of the car is also important, no part of the car should not touch the carpet during acceleration, braking or cornering nor in any combination of the above.

The chassis should sit between 3mm and 10mm above the ground. You can adjust this height by adding or removing spacers from the shock absorbers, keeping each side equal. Try to keep the front and rear of the car at the same ride height to begin with. At this height your wheels should have between 1 and 3 degrees of negative camber and 1 degree of toe-in to 1 degree of toe-out. Adjust these settings with the turnbuckles or tie-rods with the car in a ready to run state. i.e. with batteries and motor in place

If you can adjust the damping of your car then follow the kit instructions for medium damping settings using a piston of few or small diameter holes with silicon oil of around 30 Weight, this allows the car to roll a little in the corners to help combat sliding tyres but keeps the inside tyres in firm contact with the carpet for grip and traction. If the car rolls too much and one or both of the inside wheels lift off the carpet fit stiffer springs to that end or try adding an anti-roll bar (stabiliser) if the lift is very minimal.

These settings are a basic guide, if you do adjust your car then change one function at a time and re-adjust until you have the desired effect, then move on to the next function. Always test your car slowly to begin with, speeding up gradually, lap by lap, looking for handling problems. Set your gearing to ~37mm/rev. to begin with and alter according to your motor.

If you do not understand any of these terms or do not know how to adjust your car, ask the more experienced racers at the track, they may know a better set up for your particular chassis.

 


In the main the scale saloons work best on 'green' or 'blue' compound tyres. These tyre used can be the same for all four wheels or can be mixed - with Green being used on the rear.

For out door racing many other tyre types are available. 
Foam tyre should be glued to the rim using contact type adhesive and should be trued once mounted on the rim. 

Rubber Tyres:

A multitude of choice exists for these tyres. It is best that you ask around your local club to find the preferred choice for track conditions. rubber tyres also need inserts, these effectively act like inflating a tyre and dependent on the type can alter the performance of the tyre.

TYRE ADDITIVE

You can tune the grip level of the front and rear of the car by adding tyre additive to all or some of the tyre (always consistent on left and right hand sides) on either or both the front and rear tyres. Try the car without additive to begin with but I have found most saloons handle better with the whole of the rear tyres coated and just the inside quarter of the front tyres.

Rubber tyre under certain circumstances can benefit from additive, but remember check with the meeting organisers if additive is allowed.

SUSPENSION - DAMPING
Try the kit springs first, if your car under-steers badly (the front tyres slide during a turn) soften the front springs, if it over-steers badly (the rear tyres slide during a turn) then soften the rear springs. If only a small amount of sliding happens try adding a little more additive to those tyres or reduce the amount of additive on the opposite end tyres.
Anti-roll bars can be used to increase steering effect by adding a thicker bar to the rear or thinner bar to the front and vice-versa for reducing steering
effect. Running with toe-out will make the car turn much more sharply but may make it 'wander' down the straight, toe-in will do the opposite, run the front wheels parallel to each other if possible. I have found 1.5 degrees negative camber on the front wheels and 2.0 degrees negative camber on the rears works best.

Copyright Central Radio Car Club 2003© 02/03/2009