K-MAC
FINE TUNING SUSPENSION ADJUSTMENT HINTS |
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INCREASE UNDERSTEER |
INCREASE OVERSTEER |
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
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Lower
Higher
Smaller
Larger
More Positive
More Negative
Stiffer
Softer
Thicker (stiffer)
Thinner (weaker)
More Forward |
Higher
Lower
Larger
Smaller
More Negative
More Positive
Softer
Stiffer
Thinner (weaker)
Thicker (stiffer)
More Rearward
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| 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 movement. 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 emphasis 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 tendency 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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OPEN 6 DAYS - With all the latest electronic equipment
............. ... and some
of the best Suspension talent in the indus try... |
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• SPRING
MANUFACTURING to exact (any)
Height / Rate.
• ANTI-SWAY BARS including "Specials
/ Custom Made ".
• ADJUSTABLE HEIGHT COIL-OVERS including "Specials/Custom
Made"
• CAMBER,
CASTER, TOE KIT FITTINGS (more
even tire wear / traction) - essential if
lowering or expensive low profile tires fitted - including replacement
Urethane bushings.
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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! |
STREET-TRACK-DRIFT-RALLY-STRIP-SPEEDWAY
Get your car to go where you point it. |
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