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NEW CLASSES FOR 09 OFFICIALLY ANNOUNCED

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Author Topic: NEW CLASSES FOR 09 OFFICIALLY ANNOUNCED  (Read 204 times)
George Herrin
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« on: March 02, 2009, 07:32:16 pm »

ARMA's motto is “Mower Racing for More People”, and as an organization we have tried to keep this motto at the front of our minds in making decisions.  For a period of time, we have been discussing ways to better provide the most inclusive racing environment for our extensive group of racers.  ARMA realizes that our sport is in a constant state of evolution.  Mowers built even a couple of years ago have been eclipsed as new ideas, parts and build techniques have been developed.  We also acknowledge that safety is a primary concern for all racers.  After hearing input from many racers, and holding discussions with them the ARMA organization began the process of investigating the possibility of making changes to the ARMA racing class structure. Information gathered from drivers, mower builders and other interested parties was presented to the ARMA board members.  As an organization we are pleased to announce an exciting addition to the ARMA racing classes.  We will begin offering these classes on the national level at our May 16th and 17th event in Pocomoke City, MD.  Several of our local chapters will begin offering these classes at their first 2009 events.  And, drivers in these two classes will be provided with national points and will be eligible for class championships at the end of the racing season.  Please read the rules for these classes below.  They will also be added to the revised rulebook found here on the site.  As always, feel free to post and comment or ask any questions regarding these classes.

Super Mod Single:
REQUIREMENTS: Minimum age 16 years.   NO ROOKIES ALLOWED.  Drivers must have 1 year of ungoverned mower racing experience.

ENGINE:  Open- Max 20 HP OEM rated 4-cycle single cylinder engines of lawn mower origin, either vertical or horizontal orientation. Internal and external modifications are permitted for all engines. After-market aluminum billet flywheels are MANDATORY. Modifications to the block and heads are unlimited. Block and heads must be of original OEM casting.

FUEL DELIVERY: No fuel injection, blower or turbo’s. NO electric fuel pumps allowed.

IGNITION: Open.

SAFETY SHIELDS: Cowling or safety shields (blower housings) must remain, subject to safety inspection. Engines must be separated by a safety shield or stock cowling (blower housing) from the driver.

CHASSIS: Frames and parts, must retain original manufacturers (OEM) specifications (no chopping) re: wheel base, length and width. Material (steel round or square) may be added for structural strength. It is recommended that front axles be bolted or welded rigid eliminating the stock pivoting.

RIDE HEIGHT: 1.5" minimum from lowest point of chassis.  4” maximum height
 
WHEEL BASE: 42" minimum

CHASSIS WEIGHT: 275lbs minimum without driver

OVERALL WIDTH: 42" maximum side wall to sidewall

OFFSET: Offset is allowed but is specific. Measurement from center of frame to left tire sidewall 19". Measurement from center of frame to right tire sidewall 23".

BODY WORK: Can be customized but must retain some resemblance to a lawn tractor. All parts must be securely fastened to chassis i.e. fuel tanks, batteries, bodywork, etc.

FUEL: Only pump gas, 114-octane max (no additives).  N.O.S is not permitted.  No fuel injection, blowers or turbos.  No electric fuel pumps permitted.

THROTTLE: Foot or trigger throttles with automatic spring return mandatory.  Dual return springs are mandatory.

KILL SWITCH: Tractor must have a working tethered kill switch and be fastened to driver any time engine is running. Kill switches cannot be homemade.

EXHAUST: Is open, as long as it points down and away from driver and presents no apparent hazard.

MOWER DECKS: May be fabricated but must appear to be a deck to and must maintain a  minimum 1.5” ground clearance .

SEATS: Can be of Kart origin and must be mounted in center of tractor. Must be securely mounted.

BUMPERS/NERF BARS: Not mandatory BUT highly recommended. If installed, they should meet the following specifications- height within 2” of the centerline of axles, not to protrude 2" beyond the furthest point of body or tires.  Maximum width of rear bumper is 38".  Maximum width front should remain inside tires and not cover the face of the tire.  Side crash bars must remain 1.5" in from outside of tires. No sharp edges.

BRAKES: Hydraulic brakes mandatory, front brakes highly recommended

DRIVE TRAIN: Is open to live axle, belt or chain drive custom gearboxes or transaxles. Centrifugal clutches are permitted.  In instances where custom drive train may be hazardous to driver (exposed) protective shields must be installed. Discreet chassis modifications are allowed for axle installation and reinforcement, but must maintain OEM stock wheelbase.  ATV drive trains and suspensions are not permitted.

STEERING: Any improvements or modifications to steering are allowed and recommended. NO stock steering allowed. It is highly recommended that all steering components be double nutted or drilled and safety wired for maximum safety.  All tie rod ends and drag links must be spherical rod end or ball joint style.

TIRES: Go kart dirt slicks or grooved tires are allowed, (no snow hogs or deep lug tires).

WHEELS: Must be made of metal.  While smaller rim sizes are permitted, 6" front wheels and 8" rear wheels are strongly recommended. All wheels must have wheel retention in the form of castle nut with cotter pins, lock collars, snap rings, thru bolts or center bolts. Cotter pins alone are not sufficient.
 
Super Mod Twin
DRIVER REQUIREMENTS:  Minimum age 18 years of age.  NO ROOKIES ALLOWED.  Drivers must have 1 year of ungoverned racing.

ENGINE:  Open- Maximum 25 HP/44 ci max OEM rated 4-cycle twin cylinder engines of lawn mower origin, either vertical or horizontal orientation. Internal and external modifications are permitted for all engines. After-market aluminum billet flywheels are MANDATORY. Modifications to the block and heads are unlimited. Block and heads must be of original OEM casting.

FUEL DELIVERY: No fuel injection, blower or turbo’s. NO electric fuel pumps allowed.

IGNITION: Open.

SAFETY SHIELDS: Cowling or safety shields (blower housings) must remain, subject to safety inspection. Engines must be separated by a safety shield or stock cowling (blower housing) from the driver.

CHASSIS: Frames and parts, must retain original manufacturers (OEM) specifications (no chopping) re: wheel base, length and width. Material (steel round or square) may be added for structural strength. It is recommended that front axles be bolted or welded rigid eliminating the stock pivoting.

RIDE HEIGHT: 1.5" minimum from lowest point of chassis.  4” maximum height
 
WHEEL BASE: 42" minimum

CHASSIS WEIGHT: 275lbs minimum without driver

OVERALL WIDTH: 42" maximum side wall to sidewall

OFFSET: Offset is allowed but is specific. Measurement from center of frame to left tire sidewall 19". Measurement from center of frame to right tire sidewall 23".

BODY WORK: Can be customized but must retain some resemblance to a lawn tractor. All parts must be securely fastened to chassis i.e. fuel tanks, batteries, bodywork, etc.

FUEL: Only pump gas, 114-octane max (no additives).  N.O.S is not permitted.  No fuel injection, blowers or turbos.  No electric fuel pumps permitted.

THROTTLE: Foot or trigger throttles with automatic spring return mandatory.  Dual return springs are mandatory.

KILL SWITCH: Tractor must have a working tethered kill switch and be fastened to driver any time engine is running. Kill switches cannot be homemade.

EXHAUST: Is open, as long as it points down and away from driver and presents no apparent hazard.

MOWER DECKS: May be fabricated but must appear to be a deck to and must maintain a  minimum 1.5” ground clearance .

SEATS: Can be of Kart origin and must be mounted in center of tractor. Must be securely mounted.

BUMPERS/NERF BARS: Not mandatory BUT highly recommended. If installed, they should meet the following specifications- height within 2” of the centerline of axles, not to protrude 2" beyond the furthest point of body or tires.  Maximum width of rear bumper is 38".  Maximum width front should remain inside tires and not cover the face of the tire.  Side crash bars must remain 1.5" in from outside of tires. No sharp edges.

BRAKES: Hydraulic brakes mandatory, front brakes highly recommended

DRIVE TRAIN: Is open to live axle, belt or chain drive custom gearboxes or transaxles. Centrifugal clutches are permitted.  In instances where custom drive train may be hazardous to driver (exposed) protective shields must be installed. Discreet chassis modifications are allowed for axle installation and reinforcement, but must maintain OEM stock wheelbase.  ATV drive trains and suspensions are not permitted.

STEERING: Any improvements or modifications to steering are allowed and recommended. NO stock steering allowed. It is highly recommended that all steering components be double nutted or drilled and safety wired for maximum safety.  All tie rod ends and drag links must be spherical rod end or ball joint style.

TIRES: Go kart dirt slicks or grooved tires are allowed, (no snow hogs or deep lug tires).

WHEELS: Must be made of metal.  While smaller rim sizes are permitted, 6" front wheels and 8" rear wheels are strongly recommended. All wheels must have wheel retention in the form of castle nut with cotter pins, lock collars, snap rings, thru bolts or center bolts. Cotter pins alone are not sufficient.
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George Herrin #6
3 time USLMRA National Champion
8 time ARMA National Champion
Herrin Mower Sports Racing Team/Fat Boyz Racing
Hohenwald Tn. 38462
wk... 615-446-6807
http://btmra.smfforfree2.com
http://www.eccarburetors.com/

Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly
proclaiming . . "WOW ---What a Ride



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