| CLASS 1-1600 & 2-1600 A limited 4 wheeled vehicle utilizing a Type 1-1600 cc VW air cooled engine run with one (1-1600) or two persons (2-1600) during racing. ALL ACR�S APPLY FRONT END SUSPENSION ALLOWED: 1. Type 1 VW suspension only. Stock type 1 width (34 and 3/16 inches is mandatory. 2. Any manufactured parts as long as stock measurements are maintained. 3. Reinforcing of stock parts. 4. Front axle torsion tubes may be cut, rotated, and re-welded to increase ground clearance. 5. Torsion adjuster. 6. Ball joints or king pins. 7. Any tie rod or tie rod ends. 8. Shock towers may be strengthened, extended or replaced, but must remain attached to the front beam. 9. Trailing arms may be reinforced or replaced. 10. Lower shock mounting stud may be enlarged or relocated. 11. Spindles may be reinforced or replaced. 12. Any manufacturer�s torsion bars. 13. Sway bars may be removed. NOT ALLOWED: 1. Secondary suspension. SEE ACR 45. 2. Aluminum front axle beams. REAR SUSPENSION ALLOWED: 1. Type 1 IRS or swing axle only. Rear suspension track width must not exceed 51� from backing plate flange to backing plate range at ride height. 2. Strengthening of IRS swing arms as long as stock dimension is retained (+) plus or (-) minus 1�. Stock dimensions: Center line of rear torsion housing to center of rear stub axles (+) plus or (-) minus 1� is 16.25�. Maximum measurement is 17.25� and no more. 3. Torsion adjusters. 4. Outboard bus reduction gears. 5. Any manufactured rear torsion bars and axles as long as original type suspension is retained. 6. Any manufactured spring plates with additional retainer straps. 7. Rear torsion tubes may be strengthened or replaced. Type 1 shock width is 40.5�. NOT ALLOWED: 1. Secondary suspensions. See ACR 45. WHEELBASE Open. SHOCK ABSORBERS ALLOWED: 1. Any size or number. 2. Cooling fans. NOT ALLOWED: 1. Air or coils over shocks. See ACR 45. WHEEL AND TIRES REQUIRED: 1. VW drum type only. NOT ALLOWED: 1. Disc brakes. ENGINE See engine 1/2/5-1600. IGNITION See ACR 9. The use of a distributor in the stock location (i.e.,Type I VW Case) is mandatory. Distributor and coils of any origin and/or manufacturer are allowed. Capacitive ignition or pointless systems are allowed, but ignition (spark) must be activated off the distributor shaft through the rotor and cap to spark the plugs. ALLOWED: 1. Battery 6 or 12 volts. 2. Any manufacturer distributor. 3. Any VW type alternator or generator in stock location. See ACR 23. NOT ALLOWED: 1. Magnetos and direct fire and multiple coil ignition systems. FUEL TANK Fuel cells mandatory. SEE ACR 14. RESTRICTOR PLATES ALLOWED: 1. One only used between the carburetor and intake manifold. Must be .375� thick. 2. Size 21.0mm or .827. These are available from the Technical Chairman. A hole in the carburetor stud and restrictor plate must be provided to allow wiring of the restrictor plate. The restrictor plate is the only item allowed between carb and intake manifold. NOT ALLOWED: 1. Defacing or modifying. TRANSMISSION ALLOWED: 1. Stock VW Type 1 or 2 transaxle housing. 2. Four forward gears. 3. Internal/external modifications. 4. Any gear combination. 5. Only VW type (helical cut) gears. 6. After market side covers. NOT ALLOWED: 1. Gears other than VW type. OIL COOLERS ALLOWED: 1. Any manufactured full flow system. 2. Location optional. NOT ALLOWED: 1. Deep or dry sump. WEIGHT ALLOWED: 1. Single seat minimum 1300 pounds. 2. Two seat minimum 1350 pounds. 3. These are wet weights. See ACR 33. 4. Ballasts to make weight if needed. If this is used a 1/8� hole for wiring from the ballast to the frame so as to make removal impossible is mandatory. BUMPERS Adequate for safety front and rear. |