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R/C Monster Truck Race Series 2013 Rules

2012-2013 Rulebook

Copyright 2009-2013
Radio Control Monster Truck Race Series

Below are the nationals rules of the Radio Control Monster Truck Race Series (RCMTRS). These rules are listed at Crawford Performance Engineering.

Event Format

  • Sanctioned events will run under the RCMTC name and feature monster truck side-by-side style racing with an optional freestyle competition. The goal of the R/CMTRS and RCMTC is to replicate monster truck racing currently found today.
  • Events can be held indoors or outdoors, and will feature scaled down track layouts from what is being used today. Events can either be over timed courses or feature elimination style racing. All vehicles will be electric powered.
  • Events will be open to all competitors, regardless of the type of electric R/C vehicle brought to the event. No competitor attending a RCMTC event will be turned away without running his or her vehicle.

 

Racing Format

  • Racing will take place over the course of separate race rounds, with the event winner being determined through the total score combined from those rounds. Elimination racing should have a minimum of four separate rounds, while timed racing should allow drivers four consecutive timed runs. Two to four timed rounds will occur, allowing each driver to record runs in both lanes of the track.
  • In the case of a tie, the highest finish (or finishes) or fastest single timed run from each lane for a particular truck will take precedence until the tie is broken.
  • Each race will be started via a “Christmas Tree” style starting system. For elimination racing, the 1st truck crossing the finish line without penalty will be declared the winner. In timed events, the slowest time from each lane (per truck) will be dropped and the rest will be added to create a final time for each given round.

 

Racing Penalties

  • False Start – Time disallowed. Points earned up to that point remain. In the event of double false-starts, the truck that false-started last will be declared the winner. The only instance where a false start will result in advancing in the racing bracket is when the opposing truck hits a portion of the timing system. In that case, the truck red-lighting will advance but will not be awarded points for that particular race.
  • Shortcut portion of racecourse and/or out of bounds – Time disallowed. Points earned up to that point remain. In the event of double disqualification, the truck that missed the course last will be declared the winner. Legality of run to be confirmed by driver and/or course marshals. Out of bounds area to be clearly marked prior to event.
  • Contact with timing system/lights – Time disallowed. Points earned up to that point remain. In the event of both trucks hitting portions of the timing system, both trucks will be disqualified from that round of racing. The losing truck with the fastest time (fastest loser) will be allowed to advance to the next bracket of racing for that round.
  • Both front tires do not contact ramp – 5 second penalty per instance. Legality of run to be confirmed by driver and/or course marshals.
  • Truck does not meet class technical requirements – Disqualified from event. No points awarded. Truck can run in “Unlimited” Class if applicable at event.

 

Timing System Errors/Issues

  • If there is a timing error on a qualifying run, the truck that has a clean run with a timing error will be re-run in the same lane.
  • If a timing error occurs during a race for example – If the winner of the race runs a clean run with the correct time his time and win will stand. The loser of the race has a timing error, he will run again and be able to record a new time to have a chance to be a fast loser if needed.
  • If a timing error occurs on a disqualified run, that truck will not be run again.

 

Racing Classes

Traxxas Monster Jam

Retro

4WD Pro-Lite

4WD Pro-Modified

Unlimited Class

Traxxas Monster Jam

  • This is an entry level class for the Monster Jam style 2WD Traxxas Stampede.
  • No changes allowed to chassis width, suspension geometry, or wheelbase from stock kit. Non Monster-Jam 2WD Stampedes allowed with use of approved body and wheels/tires (see below).
  • Stock Traxxas 12T RTR motors required.
  • Aftermarket pinions/pinion sizes allowed. Spur gear to remain stock tooth size.
  • Aftermarket oil-filled shocks allowed.
  • Trucks must run “Monster Jam” replica body. Custom painted/wrapped bodies allowed, but must replicate current 1:1 monster truck.
  • Aftermarket radio/receivers allowed.
  • Limit of a single 7 sub-C cell size battery or 7.4V (2S) LiPo. Only hard-shell protected LiPo batteries allowed. Battery placement must use original mounting location. Low voltage cut-off required with LiPo batteries. LiPo batteries must be charged in LiPo charging sack.
  • Aftermarket Electronic Speed Controllers (ESC) allowed.
  • Traxxas Monster Jam tires/wheels required. Front wheels to be P/N3665 only and rear wheels to be P/N 3663 only. Tread modifications not allowed.

 

Retro

  • Open to all solid axle truck kits having 4WD or as listed below. This includes (but not limited to) the Kyosho USA-1, Double Dare, Twin Force, Tamiya Clodbuster/Bullhead/Super Clod, Juggernaut.
  • 3 or 4-Link suspension designs prohibited. Stock Juggernaut 1 or 2 suspension allowed.
  • Wheelbase should be in general scale to real 1:1 truck being replicated.
  • Sway bars prohibited.
  • A maximum of two aftermarket, fixed-endbell brushed motors allowed with a maximum limit of 21T each. Aftermarket pinions allowed. Brushless motors prohibited.
  • Lexan bodies allowed to replace hard bodies when applicable. Trucks must be a replica of a real 1:1 “old-school” style monster truck. Trucks featuring original “Box Art” paint schemes also allowed.
  • Oil-filled shocks allowed.
  • Aftermarket radio/receivers allowed.
  • Limit of a single 6 sub-C cell size battery. A single 3.7V (1S) hard-shell protected LiPo battery is also allowed. Low voltage cut-off required with LiPo batteries. LiPo batteries must be charged in LiPo charging sack.
  • Aftermarket steering links/kits allowed. 4WS allowed but not required.
  • Provisions for a tow hitch and/or hook point required. Some Retro events may feature sled pulling as part of the racecourse.
  • Aftermarket Electronic Speed Controller(s) (ESC) allowed.
  • Aftermarket ball bearings allowed.
  • Wheels/tires must have a “Chevron Tread” style pattern, matching the 1:1 monster truck. No tread modifications allowed. Foam inserts may be used inside tires.

 

4WD Pro-Lite

  • Open to all solid axle truck kits having 4WD or as listed below. This includes (but not limited to) the Kyosho USA-1, Double Dare, Twin Force, Tamiya Clodbuster/Bullhead/Super Clodbuster, Juggernaut, TXT-1, Axial AX-10, Redcat Ground Pounder, and HPI Wheely King.
  • Trucks limited to a 14” maximum wheelbase (suspension compressed).
  • All aftermarket chassis and sway bars allowed.
  • Aftermarket ball bearings allowed.
  • Oil-filled shocks allowed. Quantity and mounting locations unlimited.
  • Up to two brushed motor(s) allowed, with a maximum limit of 17T each.
  • Aftermarket pinions/spur gears allowed. Unless factory equipped, adjustable motor mounts not allowed. Modifications to gearcase housing motor mounting points not allowed.
  • If equipped, factory installed ring and pinion gear ratios must be maintained.
  • For any truck using a multiple-speed transmission, transmission must be locked in a single gear before competing. On-the-Fly shifting not allowed.
  • Lexan bodies allowed to replace hard bodies if applicable.
  • Battery limited to single 7.4V (2S) LiPo or up to 8.4V sub-C cell size battery pack. Only hard-shell protected LiPo batteries allowed. Low voltage cut-off required with LiPo batteries. LiPo batteries must be charged in LiPo charging sack.
  • Competitor may modify steering. All aftermarket steering kits allowed. Rear steering may be locked.
  • Aftermarket Electronic Speed Controller(s) (ESC) allowed.
  • Wheels/tires must match original sizes included in production kit. Minimum of a 2.2” wheel diameter. All tires must feature a “Chevron Tread” style. No tread modifications allowed. Foam inserts may be used inside tires.

 

4WD Pro-Modified

  • Open to all solid axle truck kits having 4WD or as listed below. This includes (but not limited to) the Kyosho USA-1, Double Dare, Twin Force, Tamiya Clodbuster/Bullhead/Super Clodbuster, Juggernaut, TXT-1, Axial AX-10, Redcat Ground Pounder, and HPI Wheely King 4×4.
  • Trucks limited to a 14” maximum wheelbase (compressed).
  • All aftermarket chassis and sway bars allowed.
  • Oil-filled shocks allowed. Quantity and mounting locations unlimited.
  • Battery pack limited to single 11.1V (3s) LiPo or up to 10 cell sub-C size. Only hard-shell protected LiPo batteries allowed. Low voltage cut-off required with LiPo batteries. LiPo batteries must be charged in LiPo charging sack.
  • Any brushed or brushless motor(s) allowed, with a maximum limit two motors. Aftermarket pinions allowed.
  • Competitor may modify steering. All aftermarket steering kits allowed. Rear steering may be locked.
  • Aftermarket Electronic Speed Controller(s) (ESC) allowed
  • Trucks must run tire/wheel sizes originally included with production kit or larger.
  • Ex. 1: A Wheely King must run a minimum 2.2” diameter wheel, but may also use Clod or T/EMaxx-sized wheels/tires)
  • Ex. 2: A Clodbuster/TXT may use a 3.2” diameter wheel only if the tire is the same size or larger than the stock Clodbuster tire. T-/E-Maxx tires do not meet this requirement on a Clod Buster.
  • Trucks may use any available monster truck tires. This includes (but not limited to) Tamiya, Ofna, Imex, RC4WD, and HPI tires. Tread modifications allowed. Foam tires not allowed. Foam insertsmay be used inside tires.

 

Unlimited Class

  • Open to all vehicles that do not fit into one of the classes above. This class will allow all competitors to have the opportunity to run their vehicle at an R/CMTRS event. Traxxas E-Revo and truggy/conversion style trucks will race in this class. Class can consist of any electric powered R/C. Only hard-shell protected LiPo batteries allowed. Low voltage cut-off required with LiPo batteries. LiPo batteries must be charged in LiPo charging sack.
  • Class is run as exhibition class only. No points will be awarded.

 

Freestyle Scoring

  • Freestyle will be voluntary and separate from the elimination racing. Each competitor wishing to freestyle will receive up to two (2) scored minutes on the track.
  • All trucks competing in freestyle must also compete in the racing event. All truck classes will be combined to compete for an overall freestyle title.
  • Scoring will be based on a maximum score of 30 as judged by fellow competitors and/or appointed freestyle judges.

 

Freestyle Judging Penalties

  • Truck runs out of bounds or hits obstacle outside of freestyle area – Deduct one (1) point per occurrence. It will be the event director’s decision prior to freestyle to outline obstacles/areas deemed out of bounds.
  • Truck requires track marshal assistance to right itself after flipping over – Deduct one (1) point per occurrence.. The driver has up to 10 seconds to attempt to “self-right” the truck without penalty.
  • Truck flips three (3) times requiring assistance to right itself – Freestyle completed. No additional penalties incurred.

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13 Comments

  1. I hope No limit series changed their rules for the Pro Mod class..I always like how RCMTC allows any solid axle MT to compete and doesnt require 2 motors…I will be racing my Clods in both series this year and hopefully at Ihobby in Cleveland

  2. i hope that they do, i hope the have some more classes like RT. the Pro Lite 4×4 class is interesting. i just looked and they seam to be listening ,Thanks Matt

  3. RCMTC events are fun, however the current rules allow for one or two racers to dominate each series. If you look at the points standing from the various chapter, typically you will see the same two names occupy the top 5-6 spots in the points standings. It is routinely billed as “elimination racing where anyone can win.” The issue is that racers are allowed to run up to 4 trucks per class. So when the guy shows up that used to be a sponsored racer he puts all three or four of his trucks in the top 5 when qualifying. If by some grace of God I happen to beat him in truck “A” – no worries for him, he can still win the round in truck B, C, or D. No way I’m getting past him 4 times.

    Also the ramp penalty rules are a joke. Depending on who is marshaling and based on their judgement call you may or may not get a ramp penalty. Different marshals interpet this rule differently. Anytime you bring subjectiveness into racing, the integrity of the program is immediately compromised.

    1. Thanks for commenting and sharing your opinion, John. I raced under these rules this past weekend. The ramp rule didn’t seem to be an issue. Even with 32 trucks in the field, I didn’t hear a single complaint about the calls–and many were DQ’ed for ramp violations.

      As for the more than one truck thing, I see what you’re saying, but … I honestly didn’t see it change the outcome. The fast drivers still won. I was the only guy there with one truck (as far as I could tell). I’m not sure I would have won even if I had eight trucks. I saw guys with four trucks not make it past the second round. The other side I see is that we do this for fun and more trucks is simply more fun.

      Again, thanks for adding your thoughts and experiences. Please feel free to add more. I know the organizers would love feedback.

    1. I did use my Axial-based truck. The quick answer is the truck performed well. I believe it’s safe to say it has real potential. I didn’t win the whole thing, but I was happy with how it performed. I believe I need to dial in the sway bars more for carpet use. I should have tried slightly stiffer springs, but there is always next time.

  4. Just got word that the No limit RC rules for the Pro Mod class will be changed to allow for 1 or 2 motors…so we will be able to race our Wraith based MTs and a few others now..

    1. I was hoping the rules would evolve in that direction. That is great news. I built my Axial-based monster truck with the option/ability to run two motors, but I much rather run a single brushless motor.

      1. Yea Im building a Wraith MT for the series too and I didnt want to half to run 2 motors..I also have a TXT Pounder Im going to run too, and I only wanna use 1 good motor…Im glad they listened and opened up…now I think at all the No Limit events you will have more in the class…I hope this turns into one of the most competitive classes

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