HARD RACING PERFORMANCE L.L.C.
264 Rolling Hill Rd. Mooresville, NC 28117 - 704-799-2192
Porsche 997 GT3 / RS
The JRZ damper is a race proven winning design, incorporating many years of experience in gas hydraulic damper and suspension design, applied to race cars ranging from F1, Indycars, Grand Tourismo, Trans Am to all kinds of racing and other applications, combined with a thorough knowledge of vehicle dynamics of modern race cars.
Most modern racing applications call for effective damping control at very small suspension travels in combination with higher frequencies, which results in fairly low suspension velocities, indicating that the most important part of the damping characteristic is in the low piston velocity range, and this is exactly what the experience has taught us, a small change at low piston velocity has a greater effect on car handling than adjusting the mid velocity range, and with this experience in mind JRZ has created a unique design incorporating the essential features to achieve maximal damping control and effective car handling.
There is a trend to minimize the size and physical dimensions of gas hydraulic dampers in the racing industry, which is fine for packaging reasons, but a damper is still a reactive device and can not exert a damping force without being moved, especially dampers of enough to accept the pistonrod and the simultaneous increase in gaspressure as a result of rising temperatures.
Design features incorporated in the JRZ damper are:
-Large 22 mm pistonrod
-Extruded high strength aluminum body with 44 mm internal diameter
-Unique valving system
-External fluid gas reservoir
-Adjustable compression valving system
-Adjustable bleed through use of exactly measured orifices
-High flow return valve for quick filling of working cylinder
-Large 44mm piston, with a large diameter no preloaded deflective disc valve system
Call or e-mail for Application and Pricing
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