D1 Grand Prix - Typical D1SL Vehicle Regulations

Typical D1SL Vehicle Regulations

Although the items that are prohibited in D1GP also applies in D1SL, additional prohibited items in D1SL cars include:

  • Sequential transmission .
  • Fuel cells.
  • Carbon/beamless/FRP door replacements, must be OEM doors with side impact bars intact if possible.
  • Airjacks.
  • Tubbed fenders/one-off metal body components, must be one that is available to the public.
  • Custom/standalone relay/fuse switchboxes.
  • Acrylic glass/polycarbonate window inserts and replacements, must be OEM glass.
  • complete dash replacement parts, must be stock.

Other restrictions in the category are that:

  • Spoilers must stay within the width of the vehicle.
  • Brakes must be stock dimensions; no swaps from other models of same make are allowed.
  • Vehicles must retain OEM parts (ac/navigation/heater)
  • A functioning car audio system must be in place.
  • A 6 point roll cage with 4 point harness must be in place (same as that of D1GP).
  • Restriction of engine swaps from other model into other model, as S15 Silvia Spec-S to Spec-R specification (SR20DE→SR20DET) may be permitted but a RB26DETT into an HR32 Skyline GTS-t is not unless the model is a BNR32, nor even is converting an AE85 to AE86 is permitted. Engines from other manufacturer's car (e.g. Darren McNamara's SR20DET powered AE86) are not permitted as well. A bolt on turbocharger or supercharger is permitted, the engine in the car can be determined by the VIN plate

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