NOTICE: Rules are subject to Change without Notice.
6r80 class is a racing class for all late model modular based V8 overhead cam powered vehicles WITH a 6r80 Ford automatic transmission. This includes modular swapped vehicles using a 6R80 transmission. This is a heads up class.
Qualifying Information, Ladder Type, & Tree.
All Run Qualifying, NHRA Sportsman Ladder, .400 pro tree, 1/4 mile, Courtesy Stage (Encouraged not required)
Minimum Weight (with driver)
Engine must be a Modular 4.6/5.0/5.4/5.8 based V-8 Ford engine. Internal modifications are permitted
Radiator required. Any radiator, water pump and cooling fan/fans permitted; Cooling system must be contained inside the engine compartment. Intercooler ice tanks are allowed under hood and in the trunk only, In Cab intercoolers Prohibited.
Any header size/tubing permitted. Open headers, downpipe OK. Hood/Bumper/Fender exit OK.
OEM or aftermarket tank in trunk or stock location. Fuel cell in engine bay permitted.
All fuels permitted. Methanol fuels prohibited as a primary source of fuel.
Any size turbocharger permitted. Twin turbos permitted.
Any size supercharger allowed.
Any nitrous setup permitted.
Wet sump system only. Dry sump prohibited.
Air intake coolers and/or ice boxes allowed in passenger compartment are prohibited. Any intake manifold is permitted.
OEM or Bolt in 8.8 or 9 inch
Ford 6R80 transmission ONLY. Internal modifications are permitted.
Aftermarket K-Members permitted, but must attach to the chassis using only the original factory OEM type mounting bolts in the factory mounting location. Motor plates ok. No part of the K-member may be permanently attached to the chassis. K-member may be modified in oil pan area to allow oil pan enlargement or removal.
OEM or tubular stock type control arms required which must be attached in stock location.
OEM or aftermarket shocks/struts/springs permitted. May use coil overs.
STOCK TYPE SUSPENSION
Stock type suspension may utilize aftermarket, direct replacement type suspension components including aftermarket replacement shocks, springs, coil overs and/or control arms. All stock type 3-link and 4- link suspensions must maintain stock lateral angles and attachment points, but may be moved up or down on rear axle. Aftermarket torque arms permitted.
Permitted on Fox Body chassis only.
Stock, unaltered frame rails required. Sub-frames may be joined under car. If connector protrudes through floor, floor must be completely welded to connector. Stock front /rear sub-frames must remain stock, unaltered, and in stock location
TIRES & WHEELS
28” Tire or smaller permitted. No “W” slicks allowed.
Spindle mount wheels prohibited
Must have carpet and factory appearing dash. Dash can be aftermarket fiberglass, or carbon fiber as long as factory appearing. Passenger seats NOT required. Aftermarket front seats are permitted. Rear seats may be removed. Interior panels not required behind the driver’s seat.
OEM steel (fiberglass/composite if OEM equipped) body shell required. Aftermarket body parts are permitted as long as factory appearing and are limited to hoods, roofs, front bumper covers, fenders, doors, and rear deck lids. Hood is required. Any rear wing permitted.
WINDSHIELD & WINDOWS
OEM glass or NHRA approved Lexan is required and must maintain a Ford OEM appearance. Optic Armor windows are OK. Braces allowed. If carbon fiber/fiberglass doors are used Lexan windows with supports allowed.
Stock, unaltered firewall required
OEM PCM is permitted. Aftermarket PCM is permitted. Aftermarket transmission controller is permitted. Delay boxes are prohibited.