2010 GT World Championships Class Rules
There are 2 classes of GT cars racing during the event, they are known as "GT1 and GT2".
The "GT1 Open" class is for racers that have the need for speed at any cost, while the "GT2 Spec" class offers a more level playing field.
All brands of R/C cars that fit into the following class rules are permitted to compete in the event.
The rules for both are very similar with only a few exceptions. These exceptions in the "GT2 Spec" class help to balance engine performance. These rules allow for some “racer innovations” to flourish, but at the same time they will maintain the integrity and spirit of the event.
The following are the official rules for the 2010 GT World Championships:
GT1 Open Class Rules:
1. Chassis: Any “1/8 Buggy/Truggy Based & Shaft-Driven” chassis GT nitro cars. (Any manufacturer or off-road racer conversions are OK too)
2. Body: Any commercially available “GT” racecar style/type body; must look like a car that could actually be driven on the street with a passenger in real life or 1:1. The engine’s cooling head fins can not be exposed from top or sides of body. Rear wing and/or spoiler/flap must be attached to the actual body. (No chassis mounted or “Buggy/Truggy” type wing mounts)
3. Tires: Only commercially available Rubber tires are OK. Tires must fit under car’s body from over-head view. Adding “fender-flairs” on body to increase tire coverage is not allowed. (No “foam” tires are permitted)
4. Fuel Capacity: All cars can only have 1 fuel tank with a maximum tank capacity of 150cc.
5. No "D-Box" or "Drift-Box" electronics systems permitted.
6. All cars must have functional personal transponder at all times when on the track surface. (Sorry, no track rental units will be available during the event).
GT2 Spec Class Rules:
All GT2 Spec class cars will follow the same rules #1 to #6 of the "GT1 Open" Class with the following exceptions:
1. Chassis: GT2 Spec cars can only use commercially available production aluminum lower chassis plates. (No Carbon Fiber Lower Chassis plates in “GT2 Spec” are permitted.)
2. Diffs: GT2 Spec cars must be equipped with standard gear diffs only. No "TCD" type diffs permitted in GT2.
3. Engine: GT2 Spec cars can use any of the “Spec-Approved” engines. All Spec engine internals must remain “100% un-modified factory stock”.
4. Engine Mods Not Permitted: All GT2 Spec car racers may elect to remove “Pull-Start” assemblies from “Spec-Approved” engines and replace rear engine “back-plates”; but the engine’s crankshaft & all internals must remain “100% un-modified factory stock”.
5. GT2 Spec “Top 3” class winners’ engines will receive full engine tech inspections at the end of the “A Main to insure legality & compliance with “Spec” class engine list and no internal mod rules.
6. Fuel Capacity: All cars can only have 1 fuel tank with a maximum tank capacity of 150cc.
7. No "adjustable" or "slider" type clutch units allowed, Only 2, 3 & 4 shoe buggy based systems are OK.
8. No "D-Box" or "Drift-Box " electronics systems permitted.
Engine List”.
GT2 Spec Class Approved Engines:
Kyosho: GXR28SG
Kyosho: GXR28 (KYO74025)
Ofna: .28 Force (OFN52217)
Ofna: Hyper .28 (OFN 53220)
Axial: .28 Spec (AX001)
Axial: .28 Spec (AX002)
Sportwerks M26 (SWK8085)
Go Technology .21 3 Port (GTR213PT)
OS Engines .21VG SMG2058 21VG (P) & OSMG2059 21VG (P)-X
The engines listed above on this "Spec List" offer a level playing field for the GT2 Spec Class racers.
Compliance with all class rules is mandatory. Any discrepancies or violations of internal engine "Mods" will result in first a warning to make the car compliant prior to running the car.
Any violations of internal engine "Mods"rules found after any "Main" will result in event disqualification. The GT2 Spec class is intended to offer a fun & level playing field for all.
Good luck to all and may the fastest GT racers/cars shine!
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