IMAR CLASS RULES
2009 – 2010 season
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Class 1 – Cheapies
- Cars must be Pro Slot Porsche 911 GT2 or GT3, Ferrari F355 or F360
- Green End Bell motor must be used
- Use of magnets is prohibited
-You may replace rear stock tires with silicone tires, and rear wheels with plastic (only) wheels
- Replacement pinion gear may be non-original and may be metal, but must have a tooth count between 9 and 11 inclusive. Replacement of spur gear with 36 teeth is permissible.
Class 2 – Vintage
- Sports cars and sedans that could have or did compete prior to 1966.
- Tires and wheels may be changed
- Use of magnets is prohibited.
- Motor may be of any brand and rated at or below 18,500 rpm.
- Chassis must be in-line. Sidewinder or anglewinder chassis are prohibited.
Class 3– Super Touring/Rally
- Cars must be four seater configuration sedans, and rally car based models (e.g. DTM, BTCC, ETCC, WTCC,WRC, SCCA Pro Rally and similar cars)
- These cars must be based on plastic RTR chassis and motor (plastic chassis only, e.g. no TSRF, Pro Track Spider, metal Monogram chassis).
- Use of magnets is prohibited
- All modifications are allowed, with the following exceptions/restrictions:
* Chassis must meet the body as from manufacturer.
* Body must be hard shell plastic or resin with driver figure, interior, and “glass” present
* No holes may be cut in chassis.
Class 4 – Classic Sports Racers
- Cars must be models of Le-Mans or Can-Am sports racers (not production based) from 1966-1976.
- No magnets allowed
- Motor may be of any brand and must be rated at 18,000 rpm or less.
- Any gears, wheels and tires may be used; however gear ratio must remain the same as stock.
- Rear axle may be replaced. Rear axle bushings may be replaced. Ball or roller bearings are prohibited.
Class 5- Trans-Am
- Sports sedans and 2+2 sedans that competed or could have competed in American Trans-Am Road Race Series (through 1974).
- Scalextric Trans-Am cars will run with the magnet PMTR1030 in the front position
- Tires must remain stock.
- Carrera cars may use Scalextric Trans-Am wheels and tires.
- Fly cars must run stock magnet in any position.
Class 6 - Stock Car
- Cars must be NASCAR, USAC, or other American stock car series racers.
- Tires must be stock tires or Hot Shoe replacements (any compound).
- In-line cars (older style Scalex only) may add two (2) Radio Shack dot magnets inside of chassis on top of existing bar (the only location allowed).
- Sidewinder cars must run the stock bar magnet in any factory prepared, chassis position.
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Class 7 – GT/Production Sports
- This class is for all production-based sports and GT cars, not one-off cars race cars built for the road (e.g. SCCA Production classes, GT class, ALMS GT and GTS, FIA GT
- Motors must be rated below 21,500.
- One PMTR1063 magnet may be used and may be placed in a non-stock location inside the chassis. Magnet may be cut, sawed, filed or broken to fit into the chassis. No holes may be cut in the chassis to add magnets or to make the magnets flush with the bottom of the chassis. Chassis may not be shaved or thinned to reduce magnet distance to the track and/or increase magnet effectiveness. Magnet holders may be shaved down to height of surrounding frame, e.g. Marcos.
- Revell / Monogram cars may use stock magnet location on bottom of chassis.
- Rear axle may be replaced. Rear axle bushings may be replaced. Ball or roller bearings are prohibited. Rear wheels may be replaced.
- Motor pinion gear may be replaced and crown or spur gear may be replaced – however gear ration must remain the same.
Class 8 - Scalextric IRL Cars
- Magnet location must be in a factory prepared position
- Tires must be stock.
- Wings must be in place at the start of each race, both front and rear.
Class 9 – Modern Formula One
- Scalex Formula One from 2001 to present.
- Cars must be authentically liveried
- A car may be “re-liveried” to make it look like another actual race car
Class 10 - Modified Sports Prototype
- Must be sports prototype body, open or closed allowed (e.g. CanAm, IMSA/WSC prototypes, Lemans/ALMS P1-P2, IMSA GTP, FIA Group C, Daytona Prototypes).
- All modifications are allowed, with the following exceptions/restrictions:
* Chassis must meet the body as from manufacturer.
* Body must be hard shell plastic or resin with driver, interior, and “glass”.
* Magnets that are added must be inside/topside of chassis.
* No holes may be cut in chassis to add magnets or make magnets flush with bottom of chassis.
- All stock locations can be used with upgraded magnets, except cars that have stock magnet locations on the underside of the chassis, in which case the original OEM magnet may be used, but no upgrade or modification may be made to magnets in this positions. Magnet holders may be shaved to the level of the surrounding chassis.
- Tires must fit under the unmodified body.
- Cars must be based on plastic RTR chassis and motor
- Wings must be in place at the start of each race, both front and rear
(Rules changes from last year are in bold, red italics)
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