Modified_Import

Modified Import Rules

*Class Tag M

*1/4 mile, Heads-up, No Breakout, .400 Pro Tree

*Qualified 16 Car field with class placed on a pro ladder

*BODY: Any year car is allowed. You are allowed to have lightweight: Fenders, Sunroofs, Hoods, Hatches, Ground Effects and Bumpers. Quarter panels and doors must be steel.  ONLY all-motor cars can run with fiber glass doors and have one-piece front ends.  FWD can run with 3-piece front ends.  You may not remove any body parts during the competition.

*CHASSIS: All cars are required to have a complete stock chassis

*CLUTCH: Clutches that are anmually operated by foot only allowed

*ELECTRONICS: Engine management, Two-step and Data loggers are allowed

*ENGINE: Engine swaps and Aftermarket blocks are allowed.  Catch Pan (Engine Diaper) is required and will be checked by Tech Officials.  Spills on the track can be a possible disqualification from any further DRN events and will be based on the discretion of the event director.

*EXHAUST: Exhaust exit points are allowed at any location

*FUEL: Only Gasonline and E85 are allowed.  Methanol is NOT allowed

*FUEL SYSTEM: Fuel Cells are allowed / Electric fuel pumps only

*GENERAL SAFETY: Any vehicle must abide by the rules and regulations of the general NHRA safety guidelines

*INTERIOR: All cars require stock dashboard and full interior from the front seats forward.  Aftermarket seats are allowed and passenger seat may be removed.  All Motor cars not required

*INTERCOOLING: Water/Methanol injection is allowed as long as it is injected into a charge pipe before the throttle body.  Air intercoolers are allowed - NO Air/Water Allowed

*LIGHTS: Brake lights and Headlights are a requirement.  You may remove one light for induction

*NITROUS OXIDE: Nitrous is allowed for certain combo setups.  Make sure your car is permitted to use Nitrous Oxide - if not, the bottle and solenoids will be asked to be removed

*SHIFTER: Shifter must be an H pattern.  No Air shifters will be allowed

*SUSPENSION: Aftermarket struts and shocks are allowed.  Four links/Ladder bars/Wheelie bars are NOT allowed

*TIRES: TIres will be measured by sidewall.  See below for size restrictions.  Any size DOT raidal tires are allowed EXCEPT 325/50/15, 295/60/15 and 315/60/15

^FWD: Maximum slick size or DOT bias ply tire is 25.0" x 9.5"

^AWD: Maximum slick size or DOT bias ply tire is 26.0" x 10.5"

^RWD: Maximum slick size or DOT bias ply tire is 26.0" x 10.5"

*TRANSMISSIONS: Any Manual or Auto transmission is allowed.  Trans-brakes are allowed.  Sequential transmissions are NOT allowed

*TURBOCHARGERS: Listed below are the turbo size restrictions. (All turbos will be measured at the inducer wheel where the inducer wheel meets the housing)

^2-rotor: RWD Manual or Auto 72.9mm single turbo - Nitrous allowed

^4-cylinder: FWD Manual or Auto 72.9mm single turbo - Nitrous allowed

^4-cylinder: AWD Manual or Auto 72.9mm single turbo - Nitrous allowed

^4-cylinder: RWD Manual 72.9mm single turbo - Nitrous NOT allowed

^6-cylinder: FWD Manual or Auto 76.9mm single turbo - Nitrous allowed

^6-cylinder: AWD Manual or Auto 72.9mm single turbo - Nitrous allowed

^6-cylinder: AWD Manual or Auto 62.9mm twin turbo - Nitrous allowed

^6-cylinder RWD Manual 62.9 mm twin turbo - Nitrous allowed

^6-cylinder RWD Manual 76.9 single turbo - Nitrous NOT allowed

*WINDOWS: All windows must be OEM/Factory glass - ok for rear window to be Lexan.  All Motor cars are allowed full lexan windows

^^Track Tech Officials have the final decision on the rules and regulations^^