K-MAC FINE TUNING SUSPENSION ADJUSTMENT HINTS |
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ADJUSTMENT Front Tire Pressure Rear Tire Pressure Front Tire Section Rear Tire Section Front Wheel Camber Rear Wheel Camber Front Springs Rear Springs Front Anti-Sway Bar Rear Anti-Sway Bar Weight Distribution |
INCREASE UNDERSTEER |
INCREASE OVERSTEER Higher Lower Larger Smaller More Negative More Positive Softer Stiffer Thinner (weaker) Thicker (stiffer) More Rearward |
| Anti-sway Bars & Shock Absorbers For street use we advocate the necessity to stay soft on spring rates and to use bars and shock absorbers for stiffening suspension. |
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| Spring Rates Spring rates determine the available amount of bump and rebound movemnet. Higher spring rates limit this movement in much the same way as a stabilizer bar. For street conditions, the ideal spring rates would be where the suspension movement ceases just before the bump rubbers come into action. Astute “car sorters” use stabilizer bars and spring rates in conjunction with one another to achieve the best results. Altering spring rates may also require re-specification of the bump-rebound qualities of shock absorbers. For example, where stronger springs are required, a shock absorber with stronger rebound and softer bump should be selected. |
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| Oversteer: (Rear breaking traction) As with understeer, both rigid and soft suspensions can cause oversteer . With “roll oversteer” the car leans heavily, hitting the bump rubbers and causing a skipping action of the rear end, often resulting in an inversion of the car. “Rigid oversteer” is brought about by a tight suspension set-up which does transfer sufficient weight to the wheel doing all the work. |
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| Understeer: (Front breaking traction) We emphasise that understeer can be caused by both too hard or too soft suspension. The hard suspension will have a tendency to “jump” on unsmooth surfaces, thus lessening contact between tires and the road. With soft suspension the tendecy to accentuate centrifugal forces by excessive body roll causes the type of understeer that most of us have experienced at one time or another. |
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K-MAC FACTORY “WORKSHOP FITTING” SERVICES |
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SHOCK DYNAMONOMETER Checking / Rating. All brands of shocks. ALSO CORNER WEIGHING... A must if Coil-overs fitted. Allows us to precisely adjust / balance your vehicle to optimise performance handling / quicker lap times! WEIGHING EQUALS... Balanced handling ... ..................Sure footed confidence ..........................the Race Winning Edge! |
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STREET-TRACK-DRIFT-RALLY-STRIP-SPEEDWAY Get your car to go where you point it. |
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DEALERS: Your customers expect you to sell Does your local dealer know about K-MAC? |