Rules

    
 Stock Lawn and Garden 

1)    Weight Classes: 1100 lbs and 1400 lbs

2)    Classes will be open to all ages 17 years old and younger for MSTTPA and Pine Tree points; older kids can pull for exhibition only

3)    Each driver in stock lawn and garden class will be allowed to purchase a yearly competition membership for $10.00; this insurance will be valid for the Stock and Modified Lawn and Garden classes only

4)    Driver must wear a helmet when pulling

5)    General Stock Lawn and Garden tractor rules:

    a)    Stock is to mean original style equipment

    b)    Stock Tractors will have a stock:

        i)     Hood

        ii)    Grill

        iii)   Motor (type and size)

        iv)   Fenders - if equipped from the manufacturer

    c)    Overall length of the tractor is not to exceed 6' - measured from the center of the rear axle to the extreme front of the weights

    d)    Width not to exceed 6' including all wheel weights

    e)    All weight rods on the tires are not to protrude more then 2” beyond the last weight at any time

    f)     All tractors will pull in two wheel drive at all times

    g)    If providing official and tech official feel a tractor is unsafe, they have the right not to allow the tractor to pull

6)    Engine rules:

    a)    Engine to be factory stock, air or water cooled, with a 3 cylinder maximum

    b)    Governor is to be working at all times

    c)    Maximum RPM is 3850

    d)    Tractors will use stock muffler; no straight pipes

7)    Tires and wheels:

    a)    Wheel diameter and tire size must match that of the original equipment

    b)    Tractors will use rubber tires that do not exceed 34” in height

    c)    Turf Tires only allowed

    d)    No Cut tires, Dual Wheels, Tire Studs or Chains Permitted

8)    Drawbar:

    a)    To be made of flat stock steel, with a 2” or larger hole

    b)    Drawbars must be rigid in all directions

    c)    Pulling Point may not be more then 3/4” from the back edge of the drawbar

    d)    Hook will be dropped in from the top of the bar

    e)    Drawbar height at hook point is to no more than 12 inches; measured from the top of the bar

9)    Wheelie pads:

    a)    All tractors will have wheelie pads

    b)    Pads to be a minimum size of 4”x 4”

    c)    Maximum height to be 6”

    d)    Rear of pads are to measure a minimum of 6” from outer rear circumference of the tire

    e)    Wheelie bars to be must be able to support the weight of the tractor

 

Modified Lawn and Garden  

1)    Weight Classes: 1100 lbs and 1400 lbs

2)    Classes will be open to all ages 17 years old and younger for MSTTPA and Pine Tree points; older kids can pull for exhibition only

3)    Each driver in stock lawn and garden class will be allowed to purchase a yearly competition membership for $10.00; this insurance will be valid for the Stock and Modified Lawn and Garden classes only

4)    Driver must wear a helmet when pulling

5)    General Modified Lawn and Garden tractor rules:

    a)    Tractors must be in stock appearance

    b)    All tractors must have hood and tin-ware in place

    c)    Fenders must be in place - if equipped from the manufacturer

    d)    Overall length of the tractor is not to exceed 6' - measured from the center of the rear axle to the extreme front of the weights

    e)    Width not to exceed 6' including all wheel weights

    f)     All weight rods on the tires are not to protrude more then 2” beyond the last weight at any time

    g)    All tractors will pull in two wheel drive at all times

    h)   If providing official and tech official feel a tractor is unsafe, they have the right not to allow the tractor to pull

6)    Engine rules:

    a)    Engines must be O.E.M. produced engine of lawn and garden style, Kohler, Briggs, Tecumseh, Onan, etc.

    b)    Two cylinder maximum

    c)    All engines must be four cycle; no two-cycle engines allowed

    d)    Drive train, transmission, axle, transaxle etc must be of stock appearance

    e)    NO exposed rotating parts allowed; shielding required

    f)     Must use a stock type carburetor; float bowl style, unless it is proven that the engine for that tractor came with another style

    g)    Gasoline or diesel fuel only; NO alcohol fuel allowed

    h)   If muffler is not used, exhaust must discharge vertical above the engine and must be no more than 10 degrees of plumb: hood may be modified to accept exhaust pipes; no rain caps allowed while pulling

        i)     If engine is not governed, it must have a deadman throttle control

7)    Tires and wheels:

    a)    Maximum tire size is 26 X 12:00 X 12

    b)    No chains, dual tires or tire studs allowed

8)    Drawbar:

    a)    To be made of flat stock steel, with a 2” or larger hole

    b)    Drawbars must be rigid in all directions

    c)    Pulling Point may not be more then 3/4” from the back edge of the drawbar

    d)    Hook will be dropped in from the top of the bar

    e)    Drawbar height at hook point is to no more than 12 inches; measured from the top of the bar

9)    Wheelie pads:

    a)    All tractors will have wheelie pads

    b)    Pads to be a minimum size of 4”x 4”

    c)    Maximum height to be 6”

    d)    Rear of pads are to measure a minimum of 6” from outer rear circumference of the tire

    e)    Wheelie bars to be must be able to support the weight of the tractor

 

Motorcycle / Snowmobile  

1)    Weight classes: 1400 lbs and 1700 lbs

2)    Each Motorcycle / Snowmobile class tractor must be registered with Maine State Truck and Tractor Puller at the one time annual cost of $40.00 before it may be allowed to pull at any event

3)    Each driver in Motorcycle / Snowmobile class must purchase competition insurance at each event at the cost of $10.00; this insurance will cover the driver on any and all competing tractor(s)

4)    Driver must wear a helmet when pulling

5)    General Motorcycle / Snowmobile tractor rules:

    a)    No portion of any tractor may exceed 8' forward of the center of the rear wheel

    b)    Tractor may not exceed a maximum width of 6'

    c)    Kill switches are required on all tractors

    d)    Kill switches must have a minimum 2” ring mounted at the rear of the tractor

    e)    Back up light is required

    f)     Tractors will have fenders suitable for protecting the driver

    g)    Tractors will be equipped with a 2½ lb class A/B. fire extinguisher

    h)   All weight rods on the tires are not to protrude more then 2” beyond the last weight at any time

    i)     All tractors will pull in two wheel drive at all times

    j)      All tractors shall have clutch, belt, and chain guards 1/8” steel or thicker in place

    k)    Drive train to be suitably shielded to contain parts in case of breakage

6)    Engine rules:

    a)    Engine(s) not to exceed more than 1500cc in total

    b)    No more than 4 cylinders allowed

    c)    If diesel, no more than 2 turbos allowed

    d)    Tractors will use a muffler or baffled tuned exhaust system

    e)    Exhaust must discharge vertical above the engine and must be no more than 10 degrees of plumb

7)    Tires and wheels:

    a)    Tractor will use rubber tires not to be over 31” in height

    b)    Tires may be cut, molded, or restyled in any way, but no items or material can be added on

8)    Drawbar:

    a)    To be made of flat stock steel, with a 2” or larger hole

    b)    Drawbars must be rigid in all directions

    c)    Pulling Point may not be more then 3/4” from the back edge of the drawbar

    d)    Hook will be dropped in from the top of the bar

    e)    Drawbar height at hook point is to no more than 13 inches; measured from the top of the barNo portion of vehicle may interfere with sled, chain, or hook during a pull or while being hooked or unhooked

    f)     Drawbars to have no provisions to be made more then 6” from center of rear axle

    g)    Drawbars and wheelie bars are not to be connected

10) Wheelie pads:

    a)    All tractors will have wheelie pads

    b)    Pads to be a minimum size of 4”x 4”

    c)    Maximum height to be 6”

    d)    Rear of pads are to measure a minimum of 6” from outer rear circumference of the tire

    e)    Wheelie bars to be must be able to support the weight of the tractor

4 CYLINDER  

1)    Weight classes: 1650 lbs and 1800 lbs

2)    General 4 Cylinder tractor rules:

    a)    No portion of any tractor may exceed 8' forward of the center of the rear wheel

    b)    Tractor may not exceed a maximum width of 6'

    c)    Kill switches are required on all tractors

    d)    Kill switches must have a minimum 2” ring mounted at the rear of the tractor

    e)    Back up light is required

    f)     Tractors will have fenders suitable for protecting the driver

    g)    Tractors will be equipped with a 2½ lb class A/B. fire extinguisher

    h)   All weight rods on the tires are not to protrude more then 2” beyond the last weight at any time

    i)     All tractors will pull in two wheel drive at all times

3)    Engine rules:

    a)    Must be automotive water or air cooled, 4 cylinder 4 stroke engine

    b)    Original manufacturer engine size not to exceed 2500cc or 153 C.I.

    c)    Engine modifications are allowed

    d)    Any intake manifold is allowed

    e)    Carburetion is limited to a maximum of 500 CFM of any combination

    f)     All engines must be naturally aspirated

    g)    No injection systems allowed

    h)   No alcohol fuel allowed

    i)     Any ignition system is allowed

    j)      Engine and first transmission must be compatible

4)    Shielding rules:

    a)    Engines with stock manifold and stock carburetor with a compatible standard transmission must run one of the following:

        i)     An approved SF1 steel bell-housing

        ii)    A bell housing covered with an approved SF1 safety blanket

        iii)   A stock bell housing covered with a fabricated shield of at least 3/16 steel starting at the rear face of the engine block and extending at least rearward of the front of the transmission; it is to be of a 180 degree design to the bottom of the flywheel and securely attached to the tractor, starting one inch ahead of the flywheel, or against the face of the engine block and must be a minimum of 6” wide

    b)    Engines with non-stock manifold or non-stock carburetor OR engines with stock manifold and stock carburetor with a compatible automatic transmission must run one of the following:

        i)     An approved SF1 steel bell-housing

        ii)    A bell housing covered with an approved SF1 safety blanket

        iii)   A stock bell housing covered with a fabricated shield of at least 3/16 steel starting at the rear face of the engine block and extending at least rearward of the front of the transmission. It is to be of a 360 degree design and also to include the front of the bell housing that extends below the engine block as much as possible; the lower portion of the shield may be of the bolt-on type

    c)    All U joints and drive shafts must have a 360 degree design shielding made of 1/8” steel

    d)    All fans and belts must be covered by 1/16” steel shielding 360 degrees

    e)    Harmonic balancer shall be solid steel or shrouded 360 degrees with securely fastened ¼” steel, no more than one inch away in direction of rotation

9)    Quick change rear ends are allowed

10) Tires and wheels:

    a)    Tires not to exceed maximum 31 inch stamped size

    b)    No dual wheels

11) All tractors must meet Mini Specifications on the following:

    a)    Ignition kill switches

    b)    Safety specifications

    c)    Exhaust System

    d)    Clutches, Flywheels, and automatics #2 and #3 only

    e)    All engine shields. #2 and #3 – Engines

12) All tractors will have fenders suitable for protecting the driver

13) Drawbar:

    a)    Drawbar must be horizontal

    b)    To be made of flat stock steel, with a 2” or larger hole

    c)    Drawbars must be rigid in all directions, not having more than ½” play

    d)    Minimum ¾” thick steel at the hooking point; any steel tubing used in the hitch must have a minimum of .160 wall thickness, all other steel must be a minimum of .250

    e)    Pulling Point may not be more then ¾” from the back edge of the drawbar

    f)     Hook will be dropped in from the top of the bar

    g)    Drawbar height at hook point is to no more than 13 inches; measured from the top of the bar

    h)   No portion of vehicle may interfere with sled, chain, or hook during a pull or while being hooked or unhooked

        i)     Drawbars to have no provisions to be made more then 6” from center of rear axle

    j)      Drawbars and wheelie bars are not to be connected

14) Wheelie pads:

    a)     All tractors will have wheelie pads

    b)    Pads to be a minimum size of 4”x 4”

    c)   Maximum height to be 6”

    d)     Rear of pads are to measure a minimum of 6” from outer rear circumference of the tire

    e)      Wheelie bars to be must be able to support the weight of the tractor

V-8 Modified  

1)    Modified Mini Tractors are defined as any tractor without standard block or crankcase for make and model of chassis is which engine is mounted

2)    No portion of any tractor may exceed 8' forward of the center of the rear wheel

3)    No portion of any tractor shall exceed 6' in width

4)    After market transmissions ARE allowed

5)    Weight classes to be 1650lbs and 1800 lbs

6)    V-8 mini modified rear ends are to be mass produced by OEM manufacturers ( GM, Dodge, Ford, ETC) as found in passenger cars or light duty trucks.

    a)    Must be able to accept OEM center sections, may be aluminum of OEM or to OEM specs and likenesses

    b)    No aftermarket will be allowed of planetary versions or planetary type

7)    Chassis

8)    All Tractors will have wide front axles.

    a)    Front wheels shall track within the rear wheels

9)    Engines

10) V-8 mini modified tractors will be naturally aspirated.

    a)    Maximum cubic inches to be 410 CI.

    b)    Single engine only, with two valves per cylinder and 1 spark plug per cylinder.

    c)    No big blocks or Hemi's allowed.

    d)    No aluminum blocks allowed

11) A deflection shield is required on both sides of all engines

    a)    Shield must extend the complete length of block casting and be securely fastened

    b)    It is to be made of aluminum or steel a minimum of .060” thick or safety blanket material

    c)    Shields must be solid, motor mounts, filters, steering rods etc., cannot serve as part of a shield, providing it covers required areas of block casting

    d)    It is recommended that a quick release fastener is used

12) Starter motors, fuel filters, oil filters and fuel injection pumps may not be used as shielding.

    a)    Shielding may cover or pass behind starter or fuel pump

13) Shielding must extend from base of head or the uppermost point of piston, travel to 2” below bottom center of crankshaft throw, and be securely fastened

14) Side shields must be mounted independently of the engine block

    a)    Motor mount, block saver plate, and header mounting or chassis mounting is acceptable

15) All blow-by tubes must exit forward of rear tires.

    a)    Engine crank venting: all engine crank case venting blow by tube must be vented below the head of the engine and extend down to the engine pan

16) All vehicles must be equipped with a deadman throttle

    a)    All throttles working in a forward-rearward direction

    b)    Throttles shall be closed in the rear most position

    c)    No hydraulic throttles allowed

    d)    All throttles must have dual return springs to the closed position

    e)    All foot throttles to have a toe strap

17) Harmonic balancer: All automotive engines equipped with a harmonic balancer: Balancer shall be solid steel or be SF1 certified

18) A bolt in crankshaft to hold damper pulley is required

19) All engine fans must be shrouded with steel 1/16” or thicker, 360 degrees

20) Exhaust Systems

21) All exhaust must discharge vertically.

    a)    Hight to be a minimum of 1' above the bend on the pipe which discharges vertically measured from top of the pipe to bottom of the bend

    b)    All exhaust pipes must be securely attached

    c)    Vertical pipes defined as being defined as being within 10 degrees, in any direction of being plumb

    d)    Rain caps cannot be used

    e)    No megaphone pipes allowed

22) Fuel and Fuel Containers

23) All forms of nitromethane (including nitrous oxide) are illegal as a fuel or fuel additive for pulling.

    a)    Legal fuels are alcohol, water, diesel fuel, aviation gas, propane gas.

    b)    No oxygen carriers and combustion accelerators

24) No pressurized fuels allowed except in UL approved pressure tanks

    a)    No oxygen allowed

25) All kill switches must be mounted independent of the drawbar and/or wheelie bars

26) Kill Switches

27) All pulling vehicles must have an automatic ignition kill switch, in working order at all times.

    a)    Track officials have the option of checking all kill switches as many times as they feel is adequate at any event

28) Kill switch must be in rear center (max of 6” off center in any direction), 18” above the hook point

29) On a spark ignition engine, the kill switch must break or ground the ignition circuit.

    a)    On vehicles equipped with spark ignition circuit

    b)    On vehicles equipped with spark ignition engines and electric fuel pumps the kill switch must also break current to the fuel pump

30) The break away kill switches must have attached to them a minimum of a 2” diameter ring. the cable from the sled will be attached to this ring

31) Portion of the kill switch and mounting brackets must be able to stand 32 pounds of pull per switch when pulled independently or collectively

32) Kill switch ring must be secured with a nylon tie wrap 1/8”.

    a)    This wrap must be broken for are-pull

33) If vehicle has kill switch or shut off located in legal position and during the pull and nylon strap is broken, and the presiding judge inspects and finds switch capable of operating properly under normal conditions, vehicle will be allowed to re-pull immediately or drop 6 positions

    a)    Decision to drop must be made before the vehicle leaves the track

    b)    It is the pullers responsibility to make sure that the switch is checked by the official before leaving the track

34) All ignition engines must have bar type master shut off switch for all motors in working oder with in easy reach of driver

35) Safety

36) If presiding official and tech official feel a vehicle is unsafe, they have the right to not allow vehicle to pull

37) All pulling vehicles must be equipped with a minimum of a 2lb halon type fire extinguisher, fully charged, in working condition and convenient to operator.

38) All drivers must wear helmets

    a)    All helmets must have chin strap fastened while pulling

    b)    helmets must meet or exceed snell 85 rating or must be SF1 spec .312

    c)    No modifications or alterations allowed

    d)    All tractors using alcohol fuel: it is mandatory to wear a fire suit, consisting of a minimum of one layer nomex 3 or the equivalent of SF1 certification

39) Competing card holder must be seated in or on the vehicle when his/her engine or engines are being started and running, and have complete controls of the vehicle at all times.

    a)    Only when the vehicle is hooked to the sled, can the driver leave the seat with the engine running

40) A reverse safety light system is required on all tractors.

    a)    A white light automotive quality minimum 2” in diameter, must be mounted directly above or below the safety kill switch at the rear of the tractor.

    b)    A light in the drivers department must be operated off the same system

    c)    Both lights are to be activated by a shift lever such that it will be lit only when the vehicle is in reverse

41) All pulling vehicles must be equipped with a starter interrupter switch on the gearshift which will allow starter engagement only in a neutral gearshift position

42) Seats and Fenders

43) All seats must have no more then 2” behind the rear of seat

    a)    A substantial backrest made of ½” cross section of steel or metal equal in strength with a minimum 4” wide and 6” long pad firmly attached

    b)    Or a manufactured seat equal in strength

44) Fenders to consist of barrier between driver and tire. Fender to be a minimum of 1” over height of tire

    a)    Fender to curl 4” horizontally from vertical edge over the tire, in the same configuration as the tire

    b)    Minimum length of 18” at the top of the fender

    c)    Fender must be able to support the weight of the driver

    d)    Fenders or tire shields must be constructed so that when the driver is seated and the hands are on the wheel, he cannot touch the rear tire with any part of his body

45) Wheels or skip pads to be a minimum of ½ the tire diameter length when measured from rear axle centerline to rear of pad

    a)    Pad to be 6” (max) above the ground

    b)    One skid pad or wheels to be on each side of the tractor, the combination strong enough to support the weight of the tractor

46) Tires

47) No dual tires, tire studs or chains permitted

    a)    All power must be transmitted through the wheels

48) Rim size to be 16” diameter, maximum width of lugs to be no wider then that of factory manufactured 18.4x16.1 tires

    a)    No tire repairs (boots, section repair, vulcanized spots, etc) to be allowed

49) Clutches, Flywheels and Automatics

50) The use of torque converters, automatic shifters, etc, will be permitted

51) All auto transmissions and torque converters will be covered with a blanket meeting SF1 specifications or 2 blankets meeting SEMA approved specifications

    a)    Blanket is to extend from rear of engine block to front of tail housing

    b)    Blanket must be fastened forward securely with 2 straps on each side, 1” above crankshaft centerline and 1” below crankshaft centerline.

    c)    Blanket should have 6” of overlap

    d)    Straps must be 2” wide with no more than 1” spacing between each strap

52) All pulling vehicles using an auto transmission must be equipped with a positive reverse gear lockout

53) All pulling vehicles using a clutch will be required to have a SF1 approved steel plate or steel billet flywheel

54) No lightening holes allowed on the transmission face of the bell housing

    a)    One cooling hole allowed, maximum 1” in diameter on the face of the bell housing

    b)    Bell housing may not be welded up and reused

55) No chemical milling allowed

56) There shall be 12 5/16” grade 5 or better cap screws securing the cover to the bell housing

    a)    The cover must have a plate or fillet that fits flush inside of the housing

    b)    The cover and fillet must be steel

    c)    The fillet must be welded to the cover and all bolts must be flush to the inside

57) There must be four bolts used to secure the transmission to the bell-housing, 1/2” minimum diameter

58) All bell housings must be flush on the inside surface

59) All automotive type engines with bell housing and clutch will run a full lock plate. Either a commercially available unit, or a minimum 3/16” steel or 1/4” aluminum with five 3/8”  grade s bolts evenly spaced in the bottom of the bell housing

60) Stabilizer Bars

61) Stabilizer bar system must be able to support the weight of the tractor in the heaviest class pulled

62) Stabilizer bars are required.

    a)    The drawbar and drawbar assembly will not in any way be attached to stabilizer bar assembly

    b)    Device is to have wheels or a skid plate

    c)    Wheels are to be at least 1” wide and S' in diameter

    d)    Skid pads to be at least 4” square at ground contact point

63) Driveline Shielding

64) All remaining drive train, including and additional manual transmissions, must be enclosed in S/16” minimum steel or 3/8” aluminum, round, inside diameter not to exceed 2” more the the outside diameter of the largest universal joint, fastened every 6” or closer, with 3/8” or larger bolts, grade 5, or butt and seam welded, and securely mounted to vehicles frame.

    a)    Applies to all vehicles with exposed drive shaft

    b)    No more than 1/4” of end of driveline shall be visible with driveline shielding in place

    c)    NOTE: If u-joints are used in any drive shaft application, the shielding must be 5/16” steel or 3/8” aluminum with 1/8” steel insert in aluminum. The insert must be a minimum of 6” wide

65) The opening at the bottom of  the transmission/torque converter housing must be enclosed in steel (stock cover is acceptable)

66) All mini tractor engine/automatic transmissions combinations must have two front motor mounts, two rear motor mounts and a support saddle for rear of transmission, with ½” maximum clearance; or

67) Two front motor mounts, support saddle at rear of engine with 1/2” clearance and a mount and a mount at rear of transmission. This is to prevent engine or transmissions from dropping if breakage occurs

68) Brakes

69) All competing vehicles must be equipped with working rear wheel brakes

70) All driveline must have 3/8” steel, 360 degrees around brake components, and ends must be closed with 1/8 steel or greater

71) Drawbar

72) Drawbars cannot be shorter, nor higher then specifications listed below. Drawbar lengths are measured from the center of the rear wheels to the point of hook.

    a)    Drawbar height: 13”

    b)    Drawbar length: 6”

73) Drawbars to be rigid, with no movement allowed.

    a)    Drawbars must have the pivot pin on the same plane as the hitch point and to the ground within 1-1/2”, plus or minus, per foot of length

    b)    This formula translates to a legally allowed 10 degrees or less of the drawbar angle

74) All drawbars and hitching devices will be steel

75) Mini drawbar and hitching device to be one piece totally constructed with minimum of 1” solid steel material

    a)    No hollow tubing is permitted.

    b)    Front point cf drawbar is to have a minimum 1/2” cross sectional thickness remaining where hole is drilled.

    c)    Minimum  1/2” pin

    d)    Drawbar height adjusting bolts to be 5” or less from hooking point the front if hook is to have a minimum of a 2” round hole, maximum 2-1/4” hole.

    e)    The thickness of material around the hole must be a minimum 3/4” thick and point of hook to be no more than ¾ inch cross sectional thickness at back edge

        i)     THE FOLLOWING MAY BE USED INSTEAD OF 62

76) Mini tractor drawbars must be equipped with hitching device 3/4” thick and must have a min 2” round hole.

    a)    Pulling point must be ¾” from back edge of hitching device cross sectional thickness of 3/4” square steel or 7/8” round with a 1/2” steel pin

    b)    Drawbar height adjusting bolts to be 5” or less from the hooking point

    c)    All mini tractors will be required to have a drawbar restraint cable consisting of a min of ½ all steel cable and 2, 1/2” clamps to join cable together

    d)    Cable to go around further most back point of hitching device and go around axle tires and over rear end housing and be joined with 2, 1/2” cable claws.

    e)    Cable to be installed as tightly as possible to prevent a sudden jerk if hitch if drawbar breaks

    f)     Cable may be held up around back of hitching device with plastic cable ties in such a manner as not to interfere with the sled hook when being hooked up

77) No portion of vehicle may interfere with sled, chain or hook during a pull or while being hooked or unhooked

78) Area's 6” wide and 12” high immediately above the drawbar must be free of all obstructions (including weights and wheelie bars) for ease of hooking and unhooking

79) Draw bars and wheelie bars are not to be connected

80) No trick hitches, no cam type rear ends

    a)    Drawbar distance from center of rear axle cannot change during pull

    b)    Drawbar must be rigid in all directions

81) All vehicles are required to have a tow hitch on the front of their vehicle

82) Adding weights

83) Weights must be securely fastened

84) No transfer of weights while vehicle is in motion will be allowed

85) Weights must not extend rearward beyond the rear tires

86) Any ballast lost while hooked to the sled and under the green flag will cause for disqualification

    a)    A weight touching the ground, although it may still be attached to the pulling vehicle, will be cause for disqualification (internal breakage excepted)

87) Weight must not interfere with the kill switch, drawbar, or chain

88) SFI

89) All tractors will use a one piece solid steel harmonic balancer or an SF1 approved unit

90) All tractors using a flywheel will use a steel billet unit or a SF1 approved unit

91) All fire suits will meet SF1 specs

92) All clutches and pressure plates will meet SF1 specs or a blanket meeting SEMA or NHRA specs will be used over a safety bell housing meeting SF1 spec 6.1

93) All tractors using standard transmissions will use a bell housing meeting SF1 spec 6.1

    a)    A block saver plate of 3/16 steel or ¼ aluminum will be used on bottom1/2 of bell housing.

    b)    If no clutch pedal is used this area will be filled in with a fillit of the same material and thickness that the bell housing is made of

    c)    The fillit will be bolted in with a minimum of 5, 5/16 grade 5 bolts

    d)    The bell housing cannot be altered from original manufacturer

    e)    If clutch pedal is used a shield will be used to enclose this area to keep any material from coming out
    f) This will be of 5/16 steel or 3/8 aluminum
 

 

 

Stock Compact Truck 

  1. Vehicle must be similar in size to but not limited to Ford Rangers, Chevy S-10’s, Dodge Dakotas, Toyota Tacoma’s, Chevy Blazers, Ford Escapes, Dodge Durango’s.
  2. Street stock means street stock. All hoods will be opened by tech committee or track judge before they are allowed to pull.  Any vehicle deemed to be non-stock or unsafe will not be allowed to pull.
  3. Vehicle engine must be a stock V6 or smaller.
  4. Engine and drive train must be same size as mass produced by factory and intended by original manufacturer. Fuel injection will be allowed for that year vehicle.
    1. 2x4 and 4x4 classes will be decided based upon entries and promotor.
    2. Will split class if necessary but not guaranteed
  5. Headers must be street legal. Dual exhaust permitted. No cylinder head, cam shaft or manifold modifications.
  6. Tires will be road inspectable & street legal.
  7. No draw bars allowed.
  8. Must have trailer ball or clevis strongly secured either to bumper or towing receiver.
  9. Vehicle must be in safe operating condition with all major parts and components well attached i.e. doors, body panels, beds, windshield, hood.
  10. Bed and back of vehicle must be empty (attached toolboxes and caps allowed but will be inspected) and no added weight inside the vehicle.
  11. Blocking or traction bars not allowed.
  12. Hitch height will be maximum of 24 inches.
  13. All trucks are subject to tech committee approval.
  14. Judges, tech men, or any MSTTPA or PTMTP board member decisions will be final on any point of controversy. Any disagreement will result in a disqualification.
  15. Driver must wear a DOT approved helmet.
  16. Pants, shirt and enclosed shoes are required to pull.

 

 

 

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