Click on the sponsors name for a link to their website.
Vintage Grass Drag Rules
General Safety Rules - all classes
We will be running a pre race safety inspection.
1. Helmet must be worn by all drivers. Safety vests are required to race Mod Stock and Open Mod Class sleds. We encourage safety vest in Stock classes but not required.
2. Working tether cords required. Push button kill switches do not qualify.
3. Clutch guards are required. Fully enclosed in Open Mod.
4. Snow flaps are required and must touch the ground when driver is seated. Mod stock and Open mods need straps or chains to limit the flap deflection to 6 inches.
5. The driver must be 16 years or older, parental presence and permission is required if under 18. All drivers under 18 are required to were safety vests. Open Mod drivers must be 18 and over.
6. NO alcohol use by the drivers and crew.
7. Track stands with backs must be used any time track is spinning in the elevated position.
8. Drivers can not wear shorts or any open toed footwear. Use common sense to protect yourself in case of mishap!
8. Race officials have the right to disallow racing by any driver or sled deemed unsafe.
Stock Class Rules
1. No engine & chassis modifications allowed. Piston may be first over but no smoothing of ports or head shaving.
2. Must have unmodified stock exhaust system. Stock dual exhaust with canister allowed but no stingers or aftermarket pipes.
3. Must use OEM style ignition.
4. Studs and cleated tracks are allowed. They will be inspected for safety!
5. Power Bloc, Comet Duster and Comet 102C allowed.
6. Air boxes may be removed.
7. Sled must have stock appearing hood.
8. Stock skis must be used, no plastic or aftermarket skis allowed.
9. Idler wheels may be added to STOCK suspension.
10. Handle bar hooks and extensions are allowed.
11. Mikuni carbs allowed if you remove stock carbs but none over 36mm.
Mod Stock Class Rules
1. Top end engine modifications allowed but MUST be engine for that model.
2. Chassis modifications allowed but must be chassis for your model, no extended tunnels.
3. Stingers and aftermarket pipes allowed.
4. Aftermarket ignition allowed.
5. All sleds must have rubber tracks, no cleated tracks allowed. Studs may be used.
6. Any clutch allowed.
7. IFS models allowed that were built by the factory prior to 1981.
8. Sled must have stock appearing hood.
9. Plastic or aftermarket racing skis allowed.
10. Idler wheels may be added to suspension. Rear suspension may be changed to allow for rubber track.
Open Mod Class Rules
1. Any modified production chassis 1985 or older. No custom built chassis.
2. Any motor 1985 and older, top and bottom end may be modified.
3. Any style pipes allowed.
4. Hoods are not required but clutches must be fully enclosed by a safety guard.
5. All sleds must have rubber tracks, no cleated tracks allowed. Studs may be used.
6. Skis must be leaf spring.
We will have a race tech on hand. If any question of rule violations comes up we can investigate. Our race tech will be Mike Kollman. A long time racer and tech for many sanctions including MSDRS, SWDRA and NSRA. He is also certified ISR.
If you have any tech questions for him, call 507-354-3589 evenings.