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Joe FilomenoGeorge LapaanAJ SpagnolettiMatt Tucker
1. The car must be equipped with a fully operational suspension system with shock absorbers, front and rear, with usable wheel travel of at least 50.8 mm (2 inches), 25.4 mm (1 inch) jounce and 25.4 mm (1 inch) rebound, with driver seated. The judges reserve the right to disqualify cars which do not represent a serious attempt at an operational suspension system or which demonstrate handling inappropriate for an autocross circuit.
2. All suspension mounting points must be visible at Technical Inspection, either by direct view or by removing any covers.
Working gas must be nonflammable (nitrogen) The gas cylinder/tank must be of proprietary
manufacture, designed and built for the pressure being used, certified by an accredited testing laboratory in the country of its origin, and labeled or stamped appropriately.
The pressure regulator must be mounted directly onto the gas cylinder/tank.
The gas cylinder/tank and lines must be protected from rollover, collision from any direction, or damage resulting from the failure of rotating equipment and cannot be in the cockpit.
The gas cylinder/tank must be securely mounted to the Frame, engine or transmission.
The axis of the gas cylinder/tank must not point at the driver
Modeled the car with a quarter car model
Equations of Motion:
Ohlins DB-1 Damper
200mm free length 57mm stroke 4way adjustable with independent
high and low speed adjustments for compression and rebound.
Small diameter, twin tube design Nitrogen gas charge in external
reservoir Adjustable spring preload
Ohlins Spring Kit Includes 16 springs 4 x 150lb/in 4 x 175lb/in 4 x 200lb/in 4 x 225lb/in Other spring rates available but sold
separately
FOX DHX RC4- .99 lbs (without reducers or spring)-Externally adjustable velocity sensitive damping(DSC)-High speed compression-Low speed compression-Bottom-out progressiveness-Rebound-Coil Spring preload-7.875 in eye to eye, 2.25 inch stroke
FOX 300 lb to 600 lb springs (50 lb increments)Other spring rates available but require different sized shocks
Push rod and rockers will be required Will require frame geometry Will work with frame on this
Rocker
Yanelle
Push Bar
Will design sway bar Implementation of sway bar pending on
handling of car without one Once rockers are designed, sway bar will
be designed
$610 per damper $175 for spring kit $30 per additional
spring
Total = ($610*4)+$175 = $2615
Running Cost = ($610*4) + ($175/16)*4 = $2483.75
$585 per spring and damper
Total = $585*4 = $2340
Running Cost= $2340
OHLINSFOX DHX RC4
