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General Disclaimer Statement
All mowers competing must meet ALL Safety Rules, and General Rules, regardless of class. Any exceptions are listed in the specific class rules section. Rules, and regulations, set forth herein are designed to provide for the orderly conduct of racing events, and are to establish minimum acceptable requirements for such events. By participating in these events ALL participants agree to comply with these rules. There is NO expressed, or implied, warrantee of safety from the application of, or compliance with, these rules and/or regulations. They are intended as a guide for the conduct of events for the sport of lawnmower racing, and are in no way a guarantee against injury, or death, to participants, spectators, or officials. The race director shall be empowered to impose any further restrictions that in his/her opinion would not alter the minimum acceptable requirements. Any interpretation of, or deviation from, these rules are left to the discretion of the NASGRASS officials.
Their decisions are final.
Code of Conduct
1) NASGRASS expects, and requires; all that enter any racing event conduct themselves in a respectable manner, and display proper sportsmanship at all times.
2) All actions, and activities, deemed detrimental to the running of the event, including but not limited to, the use of verbal or physical abuse, profanity, or threats against any NASGRASS officials, members, or spectators will not be tolerated. Violators will be dealt with accordingly.
3) The driver will be held responsible for the actions of all those associated with his/her mower, including but not limited to, the mower owner, sponsors, crew, family members, etc., and can be penalized accordingly.
4) NASGRASS members are responsible for the conduct, and safety, of their pit crew, guests, and/or children at all events.
5) NASGRASS reserves the right to refuse entry to anyone, and may exclude anyone from the event, or have them removed from the premises for improper conduct.
6) The display of or consumption of, alcoholic beverages by competitors, or volunteers, on race day prior to the conclusion of the final race of the event is prohibited. The use, or display, of illegal drugs is prohibited at any time. Violators will be ejected from the event, and may face further penalties.
7) Fighting in the pits is prohibited, and will constitute a fineable infraction and/or other penalties as deemed necessary. Fine must be paid prior to re – entry into event.
8) Mistreating any NASGRASS official, volunteer, causing a scene in front of fans, or bad language will be a $20.00 fine, and one (1) event suspension.
9) Only the driver is allowed to be on the mower when it is in motion on the racing surface, or in the pits, for any purpose. A $10.00 fine will be imposed for each infraction.
10) Un-sportsman like conduct, or obvious intentional interference with other drivers, or track markers, may result in a Black Flag to pull of the track. You must have a chat with the flag person. Loss of points, or awards, for that event, and/or suspension may also occur. If you repeatedly knock over cones, you may have to wear one on your head for the remainder of the event.
11) Lapped drivers must not hold up, or block, advancing drivers. If a driver has advanced, or gets alongside you, going into a corner do not pinch them into the cones, or tires. The obvious intent of this rule is to have safe, fair, and fun racing for all participants.
12) There are to be NO engines running, music playing, or talking during the National Anthem and Invocation.
Official NASGRASS Mission Statement
NASGRASS Inc. is a non-profit organization dedicated to sport of lawnmower racing, and the opportunity this sport provides to give something back to the communities in which we live and race. NASGRASS Inc. is an official sanctioning body for the sport of lawnmower racing that strives to provide a safe, entertaining, affordable, and competitive racing series for the enjoyment of our members, and fans. What started out as a grass roots organization of manic mechanics, devotee’s of freedom, and the not real serious American lawnmower lifestyle, has become a true spectator sport that we strive to keep affordable for all to participate in. Since we race for trophies only, and bragging rights, we are able to give more back to support worthy charities selected by our membership. We also do several races each season to aid other non-profit organizations in their fund raising efforts. NASGRASS Inc. will always strive to live up to its motto -- NASGRASS where we have MOW FUN!!! --,
and welcome all that desire to do the same.
Classes and Events
There will be Six (6) classes of Mowers:
1) KS- Kids Stock – Ages 7-10 (11 year olds may compete in this class to gain experience.)
2) JP – Junior Production – Ages 10-15 (16 year olds may compete in this class to gain experience.)
3) Stock
4) Super Stock
5) Outlaw
6) Outlaw Twin
There will be Eight (8) classes of Racers:
1) KS – Kids Stock - (Short Oval Heat and Heat Final)
2) JP – Junior Production - (Short Oval Heat and Heat Final)
3) Stocks (Short Oval Heat and Heat Final)
4) Super Stocks (Large Oval Heats and Heat Finals)
5) Ladies (Large Oval Heat and Heat Final “depending on # of mowers”)
6) Seniors 55+ (Large Oval Heat and Heat Final “depending on # of mowers”))
7) Outlaw (Drags, Short Oval Heats & Heat Finals, Large Oval Enduro)
8) Outlaw Twins (Drags, Large Oval Heats only, Large Oval Enduro)
There will be Three (3) races at each Event:
1) Drags (300 ft. Track)
2) Heats and/or Heat Finals
3) 30 Lap Enduro (Large Oval)
Points will be awarded at all races, excluding test & tune sessions when offered, and will accumulate throughout the season for year end point totals. Points for the Heats, Heat Finals, and 30 Lap Enduro will count towards Overall Points Champion Award.
(Ladies, and Seniors, may participate in Overall Points races)
General Description of classes
Stock: Must be 100% stock tractor type mowers with single cylinder engine with an O. E. M. size of 31 c. i. d. maximum. Pulleys may be changed to a maximum ratio of 9 to 1 (9 revolutions of the engine = 1 revolution of the tire in highest gear). Engine r. p. m. governed to no greater than 3650 by NASGRASS equipment. Engine r. p. m. will be checked during Tech Inspection, before, and/or after each race. No other modifications allowed. Blades must be removed if deck is attached. (Stock means untouched except for specified modifications!)
Super Stock: This is a transition class between Stock and Outlaw. This class uses a Stock Class rules engine, but governed to 4,500 r. p. m by NASGRASS equipment, with an Outlaw Class chassis. No pulley ratio limit.
Outlaw Single: Engines are limited to single cylinder, 4 cycle, air cooled, engines with an O. E. M. limit of 28 cu. In. for a Flathead, and 31 cu. In. for an Overhead engine.
Outlaw Twin: You may install a Twin cylinder engine on your Outlaw Class chassis. Engines are limited to twin cylinder, 4 cycle, air cooled, and engines with an O. E. M. limit of 44 cu. in.
Ladies: Must be a female over the age of 18.
Seniors: Must over the age of 55.
* Cu. in. = Cubic Inches, c. i. d. = Cubic Inch Displacement, O. E. M. = Original Equipment Manufacturer.
Interpretation of Rules
1) The interpretation, and application, of all rules contained herein, as well as amendments, supplements, and revisions that may be implemented shall be at the sole discretion of NASGHRASS officials, members, or committee’s and shall be final, and binding.
2) In the absence of a specific rule to cover a given point, or situation, NASGRASS officials reserve the right in all such instances to make a final judgment, which shall be final, and binding.
3) The absence of a specific rule does not imply approval, consent, or permission regarding any subject. Any question’s, or doubt, regarding such matters should be directed at a NASGRASS official. NASGRASS reserves the right to change, alter, revise, amend, add, or delete any rule, or rules, at any time after being discussed and voted upon.
4) NASGRASS officials will answer questions, and explain, the application, and interpretation, of any rule, or rules along with any penalties that may assed to any member inquires in a professional, sportsman like, and respectful manner. Members whose behavior does not meet these requirements will not be extended this courtesy.
5) Such discussions must be held during the drivers meeting prior to the start of the events first race, and will not be conducted during the course of the event due to the necessity of the NASGRASS officials to apply their full attention the their respective functions, and responsibilities. Situations that require immediate explanation due to their effect on the outcome of a race will be the exception to this rule. A competitor who has not read, or is unfamiliar with, the rule(s) in question will not be given this consideration.
6) The violation of any rule, or rules contained herein, or any amendments, supplements, and/or revisions that may be implemented will subject the violator to any penalties as defined herein, or as imposed at the discretion a NASGRASS.
Safety Rules
1) All mowers will use a safety ignition kill switch that will kill the engine should the driver become separated from the mower with a tether of not more than 40” when stretched taut. Kids Stock (K/S) class mowers may use operational seat switch.
2) Racing style neck collars, or helmet supports, will be worn by all competitors when on the racing surface, and may be inspected during Tech Inspection.
3) Full face helmets with a D. O. T. safety rating, and/or a Snell approval of 1975 or newer, and eye protection (face shield or goggles) must be worn by all competitors when on the racing surface and will be inspected at Tech Inspection. Helmets must be buckled, or strapped securely to head when worn.
4) Over the ankle OSHA approved boots, safety shoes, or racing shoes, long pants, long sleeves, and full finger gloves must be worn by all competitors when on the racing surface.
5) Exhaust design is open in all classes, and must be routed away from competitors, and spectators in a rearward, and/or downward position. Exhaust pipe will be wrapped with protective heat wrap a sufficient distance from engine to prevent burns in the event of contact with another competitor or spectator.
6) Any racer using alcohol fuel shall be required to wear a flame-retardant suit either one, or two, pieces. He/she must also display a yellow “A” on all four sides of mower 4” tall.
7) All mowers are required to have brakes on at least two wheels capable of stopping the mower at racing speeds (sliding tires for low speed brake test). Mowers with chain driven rear axle will be required to have brake mounted to rear axle shaft to enable stopping mower in the event of chain breakage.
8) All exposed belts, chains, and/or moving parts must have a housing, or guard to prevent body part access, and direct part downward in the event of breakage.
9) Wheelie bars are allowed in the drag races. But must be removed for all other races. Any driver flipping over backwards during the drag race event will be required to install wheelie bars, or redesign their dragster. Wheelie bars will be no shorter than 18”, or any longer than 36”, and of sufficient strength to support the full weight of the mower when lifted by the wheelie bars from the rear without flexing.
10) Battery must be enclosed in a covered container, unless located within the confines of the mower body, and within the perimeter of the mower secured in such a way as to prevent it from breaking loose upon impact, or rollover.
11) The fuel tank must meet the same rules as a battery.
12) Nerf Bars may be installed. Front bumpers may be installed. Rear bumpers may be installed, but must not extend past rear wheel centerline.
13) Foot “retainers” made from tubing, or plate of adequate height must be installed on the footrest platform in such a manner to prevent the foot from slipping off to the ground, or becoming entangled.
14) Seat bars, or plates, that prevent driver from sliding out of seat are allowed, and encouraged in all classes.
15) No Turbo, or Super Charging, no Nitrous Oxide allowed in any class.
16) No mower will be allowed to race with loose, or protruding, body pieces, mower parts, flat tire(s), and any mower with said condition(s) is subject to disqualification.
17) Absolutely no one but the drivers currently competing in the races, NASGRASS officials, volunteers working the flag positions, and/or safety personnel will be allowed on the racing surface at any time. Violators may be ejected from the premises.
18) There may be no sharp edges, or protrusions on any exposed part of mower (including underneath) that may injure another competitor.
19) During the running of any racing event, any mower, which poses a potential danger to its driver, fellow competitors, spectators, or is being operated in a like manner will be subject to disqualification.
20) Only the driver is allowed to be on the mower while on the racing surface, no passengers are allowed at any time.
21) Pit speed limit shall be 4 m. p. h. (The speed of a brisk walk!); failure to follow pit speed limit will result in the following:
A) 1st offence = Verbal Warning
B) 2nd offence = Written Warning, and loss of points for that race day.
C) 3rd offence = Written Warning, $20.00 fine, and loss of points for that race day.
D) Continual abuse of pit speed limit will result in loss of season points, and possible membership cancellation.
22) NASGRASS members shall not allow non-members operate any mower at a sanctioned event. All drivers must be current paid members of NASGRASS.
23) Front axles may be bolted or welded to chassis in all classes. Front spindle must be drilled, tapped, and bolted, or drilled and through bolted, or threaded with a castellated or self-locking nut to prevent loss of front wheel. (See Drawing Below) Rear wheels must be retained in a like manner, or utilize kart style shaft locks.
24) Mandatory minimum safety requirements for steering linkage(s):
A) 5/16” Tie rods, and tie rod ends (or hiem joint) for Stock and Super Stock
B) 3/8” Tie rods, and tie rod ends (or hiem joint) for all other classes. All steering linkages must use self-locking, castellated, or double nuts for mou nting to spindle, and/or any pivots, or bell crank type setups.
General Rules
(Applies to ALL racers and mowers)
1) All racing participants must be 18 years old, unless a signed parental/ legal guardian consent/release form is on file with NASGRASS Inc.
2) Racing mowers must have been originally designed to mow grass, and been commercially available for such purpose. Mowers in question must provide proof to verify its origins a mower. (Owner’s manual, factory literature, picture’s of operational mower, etc.)
3) Engines must be vertical shaft types, unless horizontal shaft type engine was offered in that mower. For modifications allowed see class rules.
4) Mower must retain lawnmower type suspension, drive train, and wheelbase axle to axle with the exception that front axle may be moved to front of unaltered mower frame. Mowers must have a minimum wheelbase of 34”, and a maximum wheelbase of 51”. Front axles may be fabricated, and kart components may be used.
5) Minimum frame height is 4”, except Kids Stock (K/S) Class, deck may be removed if deck is attached blades must be removed, and minimum deck height is 2 ½”. *See Kids Stock (K/S) Class rules.
6) Outlaw class mowers may strengthen, and modify, frames to allow for engine, and drive train mounting and fit.
7) All racers must display their racing numbers in a manner that is visible to scorekeepers from all sides. If we cannot see your numbers you may not be scored correctly. If you are racing a mower other than your own you must get prior approval from a NASGRASS official.
Flag Rules
Green Flag: The green flag indicates the start, or restart, of a race.
Yellow Flag: The yellow flag indicates there is a potentially hazardous situation on the racing surface. A Full Course Caution is for an accident or incident involving one or more mowers. Full Course cautions require all racers to slow down, maintain their relative positions as of the last completed green flag lap, and maintain a cautious speed. Watch the main flag person for a determination. If the yellow flag is displayed during the first lap, there will be a complete restart.
Red Flag: The red flag requires all mowers to stop as soon as possible in a safe manner, and pull their tether/kill switch to stop engine due to an unsafe condition. If the red flag is displayed during the first lap, there will be a complete restart. The flagmen at turns two, and three, will also have red flags. The main flagman will have an air horn in addition to the red flag to alert all racers, and flagmen of the red flag being thrown. All racers must stay with their mower, and no repairs may be made during the red flag period.
Black Flag: The black flag indicates an unsafe mower, or driver. A furled black flag is used as a warning for unsafe driving, an open black flag is for an unsafe mower, or continued unsafe driving, and you must have a chat with the flagman. Failure to comply with the black flag requirement will result in disqualification.
Passing Flag: (Blue with diagonal yellow stripe) This is an advisory flag which indicates that a faster mower, or mowers, is overtaking your mower. You must move from the racing line(s) to allow the faster mowers a safe pass.
Half-Way: is designated by the flagman holding the green and white flags in X shape as you complete the half-way point of the race.
Two (2) laps to go: Is designated by the flagman holding the green and white in both hands in upright position designating two (2) laps to go in the race.
White Flag: The white flag indicates the final lap of the race.
Checkered Flag: The checkered flag indicates the completion of the race.
Racing Rules
Signup will start 2 hours before start time for first race. Drivers meeting will be held ½ hour before start time for first race. ALL drivers MUST attend the drivers meeting, lineup positions, and class order will be given at this time. Anyone arriving late to, or missing, the drivers meeting will line up at the back of the field (scratch). Tech inspection will open as early as possible, and be announced when it opens.
NO engines running, talking, or music playing during the National Anthem.
If you are racing a mower other than your own, you must get prior approval from a NASGRASS official, and inform the scorers of the mower number you will be racing.
In order that the Pit Boss can control, and provide safe entrance to, and exit from, the pit area it is mandatory that you enter and exit the track at the designated area.
All drivers must line their mowers up in the proper order in the designated Staging Area when the class prior to theirs goes out on the track. It is the drivers’ responsibility to know their proper position. The Pit Boss will post the line-ups on the Pit Board prior to the first race of the event. Failure to be in line in the Staging Area prior to the parade lap will result in the mower staring at the rear (scratch).
Starting line-up at the Heat race at the first point’s race of the season will be determined by random draw of a numbered ball, or “pill”, after this initial line-up the following races Heat race will be line up by points. After this first points race the line-up for the next race will be determined. The line-up will be inverted, with the higher point’s mowers lining up in the rear, and the lower point’s mowers lining up in the front for the Heat races. The line-ups for the Heat Finals will be determined by finishing order in the Heat races. Any new mower, or any mower that has missed two (2) events, will be lined-up at the rear of the field, and can use accumulated points at the next event.
Any racer jumping the start, improving their track position, prior to crossing the Start/Finish line when the Green Flag is thrown will be penalized at the first Caution. In the event the penalty cannot be assessed before the end of the race, the penalty will be assessed in the Finishing Order.
In the event of a Caution, Yellow Flag, mowers will NOT race back to the flag, caution laps are not counted in scoring.
Any Driver that brings out the Caution, or Red, Flag(s) three (3) times during a race (i. e.: 2-Yellow + 1-Red = 3) with an unassisted spin, or other problems, will be disqualified from that race. Any drivers that bring out a Caution, and cannot refire, will be lined up scratch.
When a Caution comes out all mowers that have made a complete stop must go to the rear. If you can keep moving, and you were not the mower to bring out the Caution, or involved in the incident you will keep your spot. The officials’ decision is final … No Discussion!
Rough driving, whether intentional or not, will not be tolerated. Penalties will be imposed at the discretion of the NASGRASS officials’ based on the severity of the infraction.
Un-sportsman like conduct, or obvious intentional interference, with other drivers, or track markers may result in a Black Flag to pull off the track. You must have a chat with the flagman. Loss of points, or awards, for the day, and suspension may occur.
If you repeatedly knock over cones, you may have to wear one on your head the rest of the day.
Lapped drivers must not hold up, or block, advancing drivers. If a driver has advanced, and gets even alongside you going into a turn (inside), you must give them enough room to make the turn, and not pinch them into the cones. The obvious intent of this rule is to have safe, fun, and fair races for all participants.
Points and Scoring
Points system: Points will be awarded for all finishing positions starting with 100 points for the winner, and drop in 5 point increments down to last place with a minimum of 5 points being awarded. 1st place will be given 100 points, 2nd place will be given 95 points, 3rd place will be given 90 points, etc.
A “Season Points Champion” will be named in each class, with each race points accumulating for this award. The “Overall NASGRASS Points Championship” will be determined by the accumulation of points in the Heats, Heat Finals, and 30 Lap Enduro.
Protest Procedure
Any racers may file a written protest to NASGRASS officials for consideration. However, excessive sniveling may lead to immediate grass balling. The NASGRASS staff will make the final decision. If the protest is made, and no infraction or offence is found, the protester may face a sportsmanship penalty. The same will apply the protested mower if violations are found. The protesting mower must have finished behind the protested mower, and will be required to “show” his/her mower along with the mower being protested. The protested mower will have five (5) minutes to protest the protesting mower.
Protest must be made within five (5) minutes of the completion of the race that the protested, and protesting, mowers competed in. The mower owner, or driver, may make a protest for their respective race.
NASGRASS reserves the right to inspect any mower during the event.
Protest Fees
Compression Test = …………………………………………$20.00
Head, and Intake removal = …………………………………$50.00
Complete engine tear down = ………………………………$100.00
(Above items pertain to Stock, and Super Stock, Only!)
Single Item (Suspension, tires, etc.) = ………………………$20.00
· 10% of protest fee is retained by NASGRASS
· Remainder of fee will go to winner of protest.
NASGRASS hopes that everyone abides by the rules; races clean, and have fun doing it so that protests will not be needed.
ALL protests will be directed to the Race Steward/Race Director.
KID-STOCK: Class designation: K/S ages 7 to 10 (11 year olds may compete in this class to gain experience.)
100% Stock tractor type mower capable of cutting grass, deck may be removed at racers discretion, if deck is attached blades must be removed. 20” maximum rear tire diameter as listed on tire sidewall. Maximum engine RPM 3650, maximum tire pressure 15psi, and must retain stock gear ratio. No other modifications allowed.
1) Governed engines, 3650 RPM max. (No Load)
2) All replacement parts used must be exact replacements for original, and may not offer any improvements in power or reliability over the stock part. Pedals may be modified for safe operation.
3) Tethered Kill switches are mandatory.
4) Pedals may be altered for safe operation.
5) Stock Lawnmowers as delivered from the manufacturer only in this class.
6) MODIFICATIONS NOT LISTED ARE NOT APPROVED.
7) INTENT: To provide an entry-level, low cost opportunity to all our young competitors and to promote the family oriented sport. All riding mowers meeting the criteria for the class are eligible.
STOCK and JUNIOR PRODUCTION: Class designation J/P ages 12 to 15 (16 year olds may compete in this class to gain experience.).
This is a highly regulated class that is specific to the modifications that are done. The intent is to have as nearly identical mowers as possible so that this class allows young racers to gain race experiences at a faster than stock speed but with a stable platform that can easily be upgraded into the Outlaw class when the driver reaches the minimum age. Follow USLMRA rules for J/P and IMOW (Stock) classes,
1) TYPE: Must be a full sized lawn tractor, front engine, steering column behind motor, stamped steel frame and manufactured as such, as delivered except for the modifications listed below.
2) ENGINE: Governed engines, 3650 rpm. Max. (No load) Single cylinder engines, with a maximum O.E.M size of 31 Cu. In.
3) DRIVELINE: Transmission or Transaxle must be shift able and of lawnmower origin and gear ratio in highest gear is to be no less than 8 to 1. Example: while in the highest gear the rear wheels can turn no more than one revolution every time the engine rotates eight times. No Vari-Drives
4) BODY: Must be stock, without external alterations, hood must be secured.
5) Front and Rear axles must remain in stock location. Front spindles are to be min. 5/8” in diameter. All steering linkages must use ball type or spherical threaded rod ends.
6) Minimum 4” ground clearance to frame, 2 ½” ground clearance to deck if deck is attached.
7) Front axle and steering may be reinforced, substituted or fabricated. In the case of racer fabricated axles, these will be subject to the judgment of the Technical Inspector as to their apparent safety for racing. Aluminum may not be used as the material for the one-piece axle.
8) Maximum width 38” sidewall to sidewall.
9) Shaft locks, center drilled axle with locking bolts and castellated nuts with cotter pins are acceptable for securing front wheels. Cotter pins, E-rings, and C-rings alone, bent nails, hitch pins, over center pins and quick release pins are not sufficient for wheel retention and are not approved.
10) WHEELS: metal rims 5” minimum front wheels. 8” minimum rear wheels. Rear tires maximum is 16” diameter as written on the sidewall of the tire. Actual diameter may not exceed 16 1/4” at Maximum 15-PSI tire pressure.
11) Rear axle should use shaft locks, center bolts, or through bolts to secure the rear wheels.
12) DECK: Mowers may mount steel factory decks. The decks must be at least as wide as either running boards or body edge which ever is wider. Decks may not extend any more than 2” beyond the tire sidewalls on each side. Deck halves may be mounted to running boards. Decks must be secure.
13) Engines must be stock and complete. After market consumable parts such as air filters and spark plugs may be used as long as they are a direct stock replacement.
14) Exhaust design is open, but must terminate away from driver and competitors, in a rearward and/or downward direction and present no apparent safety hazard.
15 Footholds must be discrete, and no more than 2” high, made of flat or “L” stock (no rod stock), and made such that the foot cannot become entangled in a rollover.
16) Minimum 39” unaltered wheelbase.
17) Rear axle may use open differential, locked, “live” or solid axle. No single wheel drive.
18) No centrifugal and or torque converter clutches.
19) Mowers using a chain drive type transmission must use an axle-mounted brake.
20) Hoods must be hinged or hole in grill provided for access to the spark plug wire for RPM checks.
MODIFICATIONS NOT LISTED ARE NOT APPROVED.
INTENT: To provide a safe opportunity to demonstrate the driver's ability when in competition with essentially identical mowers. This is a highly regulated class to insure uniformity between machines.
Super Stock
1) Mower will use a stock rules engine on an Outlaw rules chassis.
2) Engine R. P. M. will be governed to 4,500 R.P. M. as measured by NASGRASS equipment, and will be checked before, and after races.
3) Carburetor must be stock, but air filter may be improved
4) Height minimum is 4” frame to ground at lowest point.
5) Width maximum is 44” at widest point.
6) Wheels may be changed to any type. Tires must have the word “turf” or “lawn on their sidewall, unless they are a less aggressive type. No Snow Hogs or Knobbies.
Outlaw
Single Cylinder
1) Engines are limited to 4 cycle, air cooled engines, with an O. E. M. size limit of 28 cu. in. for a Flat Head engine, and 31 cu. in. for an Overhead Valve engine.
2) Height minimum is 4” frame to ground at lowest point.
3) Width maximum is 44” at widest point.
4) Wheels may be changed to any type; tires must be turf type, or a design of equal or lesser aggressiveness. Kart tires are allowed, No Snow Hogs, or Knobbies.
5) Driver will declare engine type at registration, class will be divided by an “O” prefix to Overhead Valve mower numbers, and an “F” prefix to Flat Head mower numbers.
6) Transaxle or transmission/drive chain/rear axle design is open in Outlaw as long as it is mower type. Transaxle and Transmission must be mower type. Right angle gearboxes are allowed. Centrifugal clutches are allowed. Reverse gear may be removed.
7) Brakes may be improved in any way.
Outlaw Twin
1) You may install a twin cylinder engine in your Outlaw chassis; engine may be modified, but must retain stock outward appearance.
2) Engine size is limited to an O. E. M. size of 44 cu. in.
3) Brakes must be of a hydraulic disc type configuration.
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