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RC PRO SERIES RULES Standard Monster Truck
Scale - 1/10-1/8 Description: To be a Standard MT, the lowest point of the engine must sit at least 1.5" inches above the lowest point along the front-back centerline when compressed (usually the "skid plates"). To tech questionable MTs, remove the wheels, place MT on flat surface, compress the vehicle fully and a ruler (or 1.5" gauge) could be used vertically to measure the engine above the surface. The following trucks are examples that fit within the above definition: T (and S) -Maxxes, Savage, MGT, Revo, TNX/TC and LST.
Minimum track width - - - - - - - - - - - - - Continuous 10 feet (same as 8th scales) Wheel base - - - - - - - - - - - - - - - - - - - Minimum 12 inches Transmission - - - - - - - - - - - - - - - - - - 1, 2 or 3 speed are OK Engine - - - - - - - - - - - - - - - - - - - - - - - .12ci to .28c Carb ------------------------------------------------- No size restriction. Carb must mount securely to the motor. Exhaust ------------------------------------------- Pipes must meet the 85 decibel limit and have no movable parts in them. Minimum weight - - - - - - - - - - - - - - - - .12ci to .18ci Small blocks: 2750grams (~6 pounds), .15 to .28 Big blocks: 4300 grams (~9.5 pounds) Maximum weight for the safety of turn marshals ------------------- 13 pounds 6 ounces Fuel Tanks - - - - - - - - - - - - - - - - - - - - Single fuel tanks only. Bodies - - - - - - - - - - - - - - - - - - - - - - - Truck or SUV (no buggy or car bodies allowed ) Bumpers - - - - - - - - - - - - - - - - - - - - - -Bumpers are optional. If used, must not extend further than 1" past the body on the front and rear. Rear Spoiler/wing - - - - - - - - - - - - - - - A spoiler/wing is optional. Skid Plates - - - - - - - - - - - - - - - - - - - -Skid Plates must not extend further than 1" past the body on the front and rear. Wheels --------------------------------------------- Must be manufactured for Monster Trucks. Wheel Mounting -------------------------------- Wheel mounting - Must be securely mounted at all times. Tires - - - - - - - - - - - - - - - - - - - - - - - - -Must be rubber only and currently available to the public (i.e. in hobby shops at least 2 weeks prior to event) as a Monster Truck tire. No tires created for other vehicle types even if they fit the specifications will be allowed. Cutting or modifying the tread is allowed. Modifying the tire carcass by sectioning or narrowing is prohibited. Due to the varying sizes of wheels available for Monster Trucks it IS legal to trim the mounting bead of a tire produced for the Monster Truck class to make it fit a Monster Truck rim. Example - Bowtie on a REVO wheel. All tire measurements reference the carcass dimensions and does not include the tread depth or width. Tire diameter- - - - - - - - - - - - - - - - - - - Minimum - 5.1" (mounted) Tire width - - - - - - - - - - - - - - - - - - - - - Minimum - 2.75"(mounted)
Race lengths- - - - - - - - - - - - - - - - - - - Qualifiers - 5 to 10 minutes, Main events - 15 to 60 minutes
NOTES: 1. All Standard MT's will run in the same class. Big block/small block is no longer an issue, larger displacement engines have a heavier minimum weight to compensate.
Unlimited Monster Truck Class
Scale - 1/10-1/8 Description: Any Monster Truck that does not 100% meet the Standard MONSTER TRUCK specifications while still meeting the below guidelines will run in the Unlimited Class. Standard Monster Trucks may also enter the Outlaw class.
Minimum track width - - - - - - - - - - - - - Continuous 10 feet (same as 8th scales) Wheel base - - - - - - - - - - - - - - - - - - - Minimum 12 inches Transmission/diff - - - - - - - - - - - - - - - - - - 1, 2 or 3 speed are OK Engine - - - - - - - - - - - - - - - - - - - - - - .12ci to .28ci Carb ------------------------------------------------- No size restriction. Carb must mount securely to the motor. Exhaust ------------------------------------------- Pipes must meet the 85 decibel limit and have no movable parts in them. Minimum weight - - - - - - - - - - - - - - - - 2750grams (~6 pounds) Maximum weight for the safety of turn marshals ------------------- 13 pounds 6 ounces Fuel Tanks - - - - - - - - - - - - - - - - - - - - Single fuel tanks only. Bodies - - - - - - - - - - - - - - - - - - - - - - - Truck or SUV (no buggy or car bodies allowed ) Bumpers - - - - - - - - - - - - - - - - - - - - - -Bumpers are optional. If used, must not extend further than 1" past the body on the front and rear. Rear Spoiler/Wing - - - - - - - - - - - - - - - A spoiler/wing is optional. Skid Plates - - - - - - - - - - - - - - - - - - - -Skid Plates must not extend further than 1" past the body on the front and rear. Wheels --------------------------------------------- Must be manufactured for Monster Trucks. Wheel Mounting -------------------------------- Wheel mounting - Must be securely mounted at all times. Tires - - - - - - - - - - - - - - - - - - - - - - - - -Must be rubber only and currently available to the public (i.e. in hobby shops at least 2 weeks prior to event) as a Monster Truck tire. No tires created for other vehicle types even if they fit the specifications will be allowed. Cutting or modifying the tread is allowed. Modifying the tire carcass by sectioning or narrowing is prohibited. Due to the varying sizes of wheels available for Monster Trucks it IS legal to trim the mounting bead of a tire produced for the Monster Truck class to make it fit a Monster Truck rim. Example - Bowtie on a REVO wheel. All tire measurements reference the carcass dimensions and does not include the tread depth or width. Tire diameter- - - - - - - - - - - - - - - - - - - Minimum - 4.55" (mounted) Tire width - - - - - - - - - - - - - - - - - - - - - Minimum - 2.25"(mounted) The Panther LP is referenced for this size and will be the absolute smallest tire legal.
Race lengths- - - - - - - - - - - - - - - - - - - Qualifiers - 5 to 10 minutes, Main events - 15 to 60 minutes
NOTES: 1) All Unlimited MT's will run in the same class.
1/10 FUEL 2WD OFF-ROAD TRUCK SPECS
Minimum track width - continuous 10 feet
Maximum truck length - 18”
Maximum truck width - 13”
Truck wheel base - Minimum - 9” Maximum - 11.5”
Minimum Truck weight - 2WD - 60 ounces
Truck wheel diameter - Minimum-mounting bead - 2.175” Maximum mounting bead 2.25" Maximum overall - 2.46”
Wheel mounting - Must be securely mounted at all times.
Maximum Truck wheel width - 2”
Truck tire width - Minimum - 2" Maximum - 2.125”
Minimum Truck tire diameter - 3.6”
Wheel cut out - Use body cut lines
Engine - .12 only
Transmission - 1 speed only - viscous or slipper drivers are allowed
Rear suspension – Independent
Main events - 5 to 60 Minutes
Bodies - Off-road Truck
Tires - Rubber only
1/8 FUEL OFF-ROAD SPECS
Minimum track width - continuous 10 feet
Maximum Buggy length - 28.74” (730mm)
Maximum Buggy width - 12.2” (310mm)
Maximum Buggy height - 9.84” (250mm)
Buggy wheel base - Minimum - 10.8” (270mm) Maximum - 13.2” (330mm)
Minimum weight - 112.9 ounces (3.2 kilos)
Wheel diameter - Minimum - 3.2” (81.28) Maximum - 3.4” (86.36mm)
Wheel mounting - Must be securely mounted at all times.
Maximum wheel width - 1.75” (44.45mm)
Tire diameter - Minimum - 4.3” (109.22mm) Maximum - 4.7” (119.38mm)
Maximum tire width - 1.85” (46.99mm)
Engine - .21 only
Transmission - 1 speed only
Rear suspension – Independent
Main events - 5 to 60 Minutes
Bodies - Buggy or other off-road style body that resembles an actual off-road racing vehicle
Tires - Rubber only
Notes - Maximum height is measured with suspension fully compressed. |
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