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300ZX BC Racing Coilovers Front and RearSKU: Z32SF12
300ZX BC Racing BR Series "Type RS" Street and Circuit Coilover Set.
"Adjustable Ride Height" and "30 Way Shock Adjustment From Soft To Hard"
For Street and Circuit Use
Top Mount Type : Rubber Front, Rubber Rear
Front Spring Rate : 8kg/mm (448lbs/in) Rear Spring Rate : 6kg/mm (336lbs/in) For Road Use With Occasional Track Use.
Front Spring Rate :10kg/mm (560lbs/in) Rear Spring Rate : 8kg/mm (448lbs/in) For Track Use.
The BR series coilovers use a large 44mm diameter piston in a 53mm diameter damper body to maximise oil capacity.BC Racing only use a very high quality oil with their coilovers but go that extra mile to maximise performance and build their BR range with a large 53mm diameter damper body. This increases the capacity of the unit which increases the volume of oil contained which in turn reduces the peak temperature and so significantly improves damper performance.
Ride height adjustment
Ride height is determined by the position of the coilover bottom mount. The mount can be wound up and down the damper body to give a full range of adjustment from near standard ride height to so low it wouldn’t be drivable on the road.
Because ride height is determined by an adjustable bottom mount rather than spring platform you retain full damper travel regardless of the ride height run.
BR coilovers feature 30 way damping adjustment that combines both rebound and compression in one adjuster for simplicity and ease of use. This adjustable facility allows you to fine tune the vehicle to meet the relevant conditions.
By tweaking front and rear damping you can adjust the way the car handles. Increasing damping force on the rear relative to the front, for example, will start moving the vehicle into a more oversteer orientated stance.
If you want to go drag racing in a rear wheel drive car then you want the back of the car to squat off the line to maximise weight transfer to the rear and therefore onto the rear tyres. This maximises traction and helps prevent wheel spin. To achieve this you would soften the rear dampers to allow faster compression. If you had the rear dampers set to hard, as you might run the car on a race track, then the car would be less inclined to squat so traction would be reduced.
Conversely, if you want to go drifting and are finding it hard to break traction and are having problems with understeer then making the rear dampers harder will help reduce traction whilst making the front dampers softer will give greater front traction. This will make the rear of the car looser whilst minimising understeer thus altering the vehicles handling characteristics more towards drift than drag, road or track.
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