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2010 Michindoh Truck and Tractor Pull Association
Rules
General Rules:
1. Michindoh Classes are: 5500lb. 2wd Small Block
(points class)
6000lb. Stateline
Pro Street 4x4 (points class)
6200lb.2wd Super Stock (points
class)
6200lb. 4wd Altered Stock (points
class)
10,000lb. Hot Farm Tractors (points
class)
8,000lb.
2.6 Diesel (points class)
8,000lb. 3.0 Diesel (points class)
American Big Block Modified Rails (points class)
8500# or less Michindoh Open
2. Other classes will be offered if the event allows.
Causes for Disqualification:
1. Loss of anything off the vehicle (i.e.: weights, parts, etc.) while it is in motion, except in the case of breakage in the drive-line, until red flag is waved.
2. Loss of safety equipment or failure of safety equipment to function.
3. Excessive loss of liquid or steady stream.
4. Illegal fuel and use of Nitrous Oxide.
5. Any part of your vehicle out of bounds from start to finish while under the green flag.
6. Unsafe operations of any vehicle in pits or on track (i.e.: no hole shots, excessive speed, etc.)
7. INTOXICATION of any driver or pit crew member or any smell of alcohol on a driver’s breath.
8. Illegal equipment.
9. Leaving starting line under red flag.
10. Un-sportsman like conduct.
11. No reverse in vehicle.
ALL THE RULES WILL BE STRONGLY ENFORCED DUE TO YOUR SAFETY AND THE SAFETY OF OTHERS. THE OFFICIALS’ DECISIONS ARE FINAL!
**The Head of Class/Tech Official for each class will enforce all of the rules! Every vehicle will be teched on a random basis at some point throughout the season.**
6200lb. 4wd Altered Stock
1. No hood modifications. Hood must be steel and no upright headers.
2. Tires must be D.O.T. approved for highway use and uncut.
3. Protest rules in effect.
4. The decisions of the pulling officials are final.
5. Kill switches are mandatory. Electric fuel pumps must be wired through the kill switch.
6. Trucks must
have a full body, no flat beds, or inner beds removed. (Street & altered
NOT super stock).
7. Will allow racing seat.
8. No fuel tanks or batteries mounted in front of the truck.
Weights:
1. Front weights to be a maximum of 60” from center of front axle.
2. No loose weights in cab.
Hitches:
1. Maximum hitch height is 26 inches, & minimum 42 inches from center of
rear end maximum of 48 inches.
2. You must use a steel plate hook point with a minimum 31/2 inch hole.
3. Pivot point of hitch cannot be forward of center of rear axle. It must be
below top of frame rails, and hook point must be behind frame rail or body.
4. Hitches must be tight and have no movement in any
direction.
Engines:
1. Engines must be pumped before your first pull for the season.
2. Maximum 514 cubic inch limit, 1% tolerance.
3. Single four-barrel carburetor is allowed.
4. No predator, dominators, king demons (or there equivalents) turbos, or
superchargers.
5. No fuel injection unless factory equipped.
6. Cast iron block and heads only, except FORD FE allowed to run aluminum
cylinder header.
7. Aluminum intake may be used.
8. No pressurized fuels. No 100% alcohol fuel.
9. Front of engine block cannot extend more than 10 inches of the center of the
front axle. Front axle must be in stock location.
10. Balancer must be S.F.I. approved or covered 360
degrees with 1/4 steel.
Transmissions & Drivelines:
1. Maximum wheel base 134 inches center to center.
2. Stock one ton or less drive-line.
3. May block frame solid. MUST HAVE u-joint covers & drive shaft loops on front
& rear shaft.
4. Must have scatter proof bell housing or automatic tranny blanket, and S.F.I.
flywheels.
5500# 2WD Small Block
Engines:
1. Engine must be small block no exceptions.
2. Maximum size 360 cubic inch. 1% tolerance, naturally aspirated V8 engine.
3. Cast iron block and cast iron heads (23 degrees, +/- 1
degree ) only.
4. Single four-barrel carburetor. 4150 maximum. No Dominators.
5. Aluminum intakes allowed must accept 4150 flange. No 4500 series intakes.
6. The front of the engine block cannot extend more than 160 inches forward
of the center of the rear axle or 20 inches forward of the center of the front
axle.
7. Balancer must be S.F.I. approved or covered 360 degrees
with ¼ steel.
8. No roller-cams.
9. Gas only. No 100% alcohol fuel.
Hitches:
1. Maximum hitch height of 30 inches.
2. Minimum 36 inches behind center of rear axle.
3. Maximum 48 inches behind center of rear axle.
4. Pivot point of hitch cannot be forward of the center of the rear axle.
5. Must be rigid at all hook points.
6. Must be no smaller than 3.5 inch hole at hook point.
Wheels and Tires:
1. Can run any D.O.T. uncut tire.
2. Maximum tire height of 35 inches and a maximum width of 14 inches.
Transmission and Drive Lines:
1. Stock altered frames, no tube chassis.
2. Maximum wheel base of 140 inches center to center.
3. All U joints and yokes must have 360-degree covers, 6 to 10 inches long, and be .125 inches think steel or .25 inch thick aluminum. Covers must be attached with a minimum of 2 grade 5, 3/8 inch bolts.
4. Drive shaft loops required. A minimum of 2 grade 4, 3/8 inch bolts must be used to attach loops to frames.
5. Bell housing must be covered by one of these methods:
a. Scatter-proof bell housing
b. Transmission blanket
6. Any rear end allowed.
Weights and Safety:
1. Weights can be mounted anywhere on the truck in a safe manner, no lose weights in cab.
2. Weights can not extend more than 60 inches forward of the front axle.
3. Driver must wear a seat belt.
4. Batteries must be in a protective case if inside the cab.
5. Must have working kill switch on rear of truck must kill electric fuel pump if it quits.
6. Brakes must hold truck.
7. Must have a radiator overflow.
8. Drivers must be 16 years of age and have a valid drivers license.
9. Hood required covering as much area as possible.
10. Engine side shields required unless inner fenders are installed.
11. Nerf bars at least 8 inches behind clevis or body to prevent damage.
12. Must have wheelie bars, maximum ground clearance of 6 inches and minimum of 18 inches behind rear axle.
13. Fuel tanks are allowed to be in front of vehicle if they are S.F.I. approved and have braided hoses and pressure coupler.
14. All rules are in effect for 3 years (from the 2010 season through the 2112
season) with the exception of safety requirements approved by the Board of
Directors.
6200lb. 2wd Super Stock
Engines:
1. Maximum single 475 cubic inch 1% tolerance, naturally aspirated V8 engine.
2. Cylinder heads: two valves and one spark plug per cylinder. Aluminum heads
are allowed.
3. Legal aluminum heads: CHEVROLET: dart-320, 360, and Pro 1, Brodix 1 & 2, and
all Edelbrock. FORD: Cobra jet, Blue Thunder and TFS A460. CHRYSLER: Indy 444-1.
Not limited to these heads, but must meet A & B.
3a. Must have cast aluminum manifold.
3b. Must except stock rocker arm assembly.
4. The front of the engine block cannot extend more than 160 inches forward of
the center of the rear axle or 20 inches forward of the center of the front
axle.
5. One carburetor, gasoline only.
6. Balancer must be S.F.I. approved or covered 360 degrees
with 1/4 steel.
Hitches:
1. Maximum height 30 inches.
2. Minimum 36 inches behind center of rear axle.
3. Maximum 48 inches behind center of rear axle.
4. Pivot point of the hitch can not be forward of the center of the rear axle.
5. Must be rigid at all hook points.
6. Must be no smaller than a 3-1/2 inch hole at the hook point.
Tires & Wheels:
1.Can run any size street legal DOT tire, uncut. Maximum size
35x12.50 or 3.75x65 metric.
2. No split rims; snap rings or dual wheels.
Transmissions &
Drivelines:
1. Stock altered frames. No tube chassis.
2. Maximum wheel base 140 inches center to center.
3. All u-joints and yokes must have 360 degree cover, 6 to 10 inches long, and
125 inch thick steel wall (no exhaust pipe). Aluminum must be .250 inch thick
& attached with grade 5-3/8 bolts & a minimum of 2 required.
4. Solid drive shaft loops required. Must be fastened with at least 2 grade
5-3/8 bolts.
5. Must have a fully enclosed S.F.I. approved explosion proof bell housing on
standard transmission.
6. Must have S.F.I. approved flywheels for both automatic and standard
transmissions.
7. Automatic transmissions must have S.F.I. approved flywheel shield and
transmission blanket, or tunnel shield.
8. Any rear axle is allowed, but no planitaries.
Weights & Safety Rules;
1. Weights can be mounted anywhere on the truck in safe manner. No Loose weights
in cab.
2. Weights cannot extend more than 60 inches forward of the center of the front
axle, or any part of the truck.
3. Driver must wear seatbelt.
4. Batteries must be in protective case and must have a battery disconnect
switch on outside if mounted in front.
5. Must be mounted and working fire extinguisher in the cab.
6. No gas tanks in the cab, unless factory installed.
7. Must have working kill switches and they will be checked.
8. Brakes must hold vehicle.....steering brakes are allowed.
9. Must have radiator overflow.
10. Drivers must be at least 16 years of age and have a valid driver’s license.
11. No car bodies, vans, blazers, broncos, or fiberglass bodies allowed. With
the exception of fiberglass hoods only.
12. Hood required covering as much area as possible.
13. Engine side shields required (.100 for steel and .125 for aluminum), unless
inner fenders are installed.
14. No holes in firewall or floor larger than 1 inch.
15. Balancer must be S.F.I. approved or covered 360 degrees.
16. Nerf bars at least 8 inches behind clevis or body to prevent injury.
17. Fuel tanks are allowed to be in front of vehicle if they are S.F.I. approved
and have braided hoses and pressure coupler.
18. 2wd- must have wheely bars. Maximum ground clearance of 6", and 18" behind
rear end.
Michindoh Open Class Rules
Michindoh legal vehicles only. 100% payback.
6000lb. 4WD Stateline Pro Street
General Rules:
1. Trucks must be licensed, street legal, and have proof of
insurance.
2. Drivers must wear approved helmets.
3. No hood modifications.
4.Tires
must be D.O.T. approved for highway use. 12.50 x 33 inches,
or 3.75x65 metric maximum tires size. No cut tires, No boggers.
5. Stock one ton driveline or less, u-joint, driveshaft, rear end, etc.
6. You may block the frame.
7. No special bumpers, snowplow hook ups, or brush guards.
8. The decisions of the pulling officials are final.
9. Trucks must have reverse lights of some sort.
10. Will be a points class.
11. Must have drive shaft loops and U-joint covers, scatter-proof bell housing
or blanket and a kill switch.
12. Any unsafe manner of vehicle (on or off track) will be disqualified.
13. Top 3 placing trucks may be teched after pull. Any truck in violation will
forfeit placing and hook fees, Truck will not be allowed to pull again until
violation is corrected.
14. No fuel cells or added gas tanks.
15. All drive lines in factory location. (No moving axles or transmissions or engines.)
16. Must have OEM transmission and transfer case
17. Balancer must be S.F.I. approved or covered 360 degrees by 1/4 steel.
18. Truck must have a full body
Recommended now and will be required for the 2011 season.
Weights:
1. Weights can be added, but must be secured in the bed of the truck.
Hitches:
1. Hitch is to be no more than 22 inches off the ground, and hook
point must be 48 inches minimum from rear axle. Pivot point of hitch
cannot be forward of center of rear axle and must be below top of frame rail.
2. You must use a clevis style hooking device.
4. Hitches must be tight and have no movement in any direction.
5. Drivers must furnish the 3-1/2 inch clevis. It must be a twist horizontal
type.
Engines:
1. Maximum 472 cubic inch. Only factory equipped trucks over this
rule will be permitted. EX. - 496 Chevy, 488 Dodge. Engine must be in factory
location.
2. Single four- barrel carburetor. 850 C.F.M. carb double pump maximum. No
Dominator or King Demond.
3. No fuel injection unless factory equipped.
4. Cast iron block and heads must be used. No aluminum blocks or heads unless
OEM to that vehicle. All
blocks and heads must have OEM part number. No Merlin or Dart parts.!!!!!!!!
5. Aluminum intakes are allowed.
6. Headers are allowed. All exhausts must run through the muffler and be at
least to the rear axle.
7. No magnetos.
8. No electric water pumps. They must be belt driven unless factory equipped.
9. 94 octane gas or less. No race alcohol, LP, Nitrous oxide, fuel additives.
10,000lb. Hot Farm Tractors
Engines:
1. Maximum 540 cubic inch limit, 1% tolerance.
2. Water injection is allowed. No oxygen carriers or combustion accelerators
allowed. Water only.
3. Factory aftercooler allowed. AGRICULTURE/OEM USE ONLY.
4. Turbos limited to 3" inlet, 31/2" outlet, no waste gates. Wheel must rotate
in the bore.
5. No additional openings in compressors housing outside the 3" opening. MWE
groove is allowed to be open.
6. If turbo inlet is larger than 2-3/4" ID, must have a 2-3/4" ID (+ or - .005),
restrictor plate, no taper allowed, round opening 3/4" thick (+ or - .005).
Maximum of 1/16" radius in the bore opening.
7. Restrictor must be screwed and sealed ( o-rings or gasket sealer) to the
front face of the compressor housing.
8. No spacer plate behind or in front of restrictor plate.
9. Maximum of 6" from the front of the restrictor plate to the face of the
compressor wheel.
10. Factory cast iron cylinder head and block, no aluminum or deck plates.
11. Diesel fuel only, no additives or pressurized fuels, NTPA fuel guidelines
409.
12. Stock appearing manifolds, intakes and exhaust.
13. The largest fuel injector pump allowed will be a P-pump with only one plunger per cylinder.
Hitches:
1. Hitch height is maximum of 20 inches.
2. Must be within 18 inches to 30 inches behind the center of the rear axle.
3. Must be ridged with no movement in all directions.
4. No more than 11/2 inch difference between hitch mounting point and hitching
point.
5. Hook hole is required to be a minimum of 31/2 inches ID (allow ample room for
person hooking the chain).
Tires & Wheels
1. Maximum tire size 20.8/38.
2. Cut tires are allowed.
3. Front tires must track rear tires.
Safety:
1. Emergency air shut-off is mandatory (must be easily accessible to person
hooking the chain).
2. If equipped with an electric fuel pump, tractor must have:
a. an electric kill switch wired to the emergency air-shut-off, or
b. a manual three-way dump valve ahead of the injection pump, to be operated by
the driver.
3.Must have fire extinguisher that is within reach of the driver.
4. Must have working, individual rear brakes.
5. Must have wheely-bars.
6. Must have clutch blanket or steel shield installed 270 degrees 3/8 inch
thick, and 12 inches wide.
7. Seat belts required.
8. Roll over protection mandatory.
9. Must have a steel flywheel and clutch assembly.
10. Engine side shields are mandatory. Shields must be solid and a minimum of .060” thick if steel, or .120” thick if aluminum.
11. Tie-bars securing front frame rails to rear axle
housing are highly recommended.
Appearance:
1. Tractor must be in stock appearance, hoods, grills, & fenders,
(except injection pump & after cooler).
2. Must have stock appearing frame rails. No tube-style frames allowed.
Upgrades will be permitted for safety reasons, only if approved by board of
directors.
3. Maximum wheel base is 114”.
4. Maximum length is 13’ from center of rear axle to forward-most part of tractor, including weights, not including front hitch.
8,000# 2.6 Diesel
1. Weight class is 8,000lbs.
2. Hanging weights are allowed. Weights may be in the bed. No weights in the cab or in the engine compartment.
3. Batteries must be securely mounted. They may not be located in the driver compartment or forward of radiator core support.
4. The body must be O.E.M. Truck body must include a full bed floor. The body must retain full sheet metal. After-market hoods are permitted.
5. Four-wheel hydraulic brakes are mandatory.
6. O.E.M. chassis – the engine must be in the O.E.M. location. Wheel tubes, back half conversion, tube chassis, etc. are prohibited.
7. Radiators must be in the stock location and be of least stock size.
8. All drivers must have a valid state driver’s license.
9. An O.E.M. transmission and transfer case are mandatory. They must have been an option on a one-ton or smaller.
10. The O.E.M. restraint system is mandatory and must be worn.
11. The engine is limited to stock-appearing O.E.M. make-specific compression ignition engine. The engine must be governed to a maximum of 4500RPMs unless the O.E.M. governed speed is higher.
12. Exhaust must exit rearward of the driver’s compartment. Stacks through the hood or fender-well are prohibited.
13. The O.E.M. firewall is mandatory.
14. The complete O.E.M. floor pan is mandatory.
15. The fuel must be pump #1 #2 diesel only. Soy/bio-diesel fuel is permitted. Off-road diesel fuel is prohibited.
16. The injection pump is limited to a stock appearing O.E.M. engine model-specific pump.
17. The O.E.M. fuel tank is mandatory and must be used. Racing fuel cells are prohibited and must be removed from the vehicle.
18. The hitch must be a “Reese”-style hitch. Trick hitches are prohibited. The hooking point must be the rear most point on the vehicle and must be rearward of the stock location of the tailgate. The hitch may not exceed 26 inches.
19. A complete interior included dashboards, door panels, headliner, etc is mandatory. Two matching front seats are mandatory. All factory controls (lights, signals, horn, windows, wipers, etc) must be retained and be operative.
20. Nitrous oxide is prohibited. No other oxygen extenders are allowed and must be removed.
21. Propane is prohibited. All system components must be removed from the truck.
22. Water injection is prohibited. All system components must be removed from the truck.
23. A non- O.E.M. rear-end housing are prohibited. It must have been an option and on a one-ton or smaller truck.
24. Tires must be DOT street tires. Cut tires are prohibited.
25. Turbo chargers are limited to a 2.6 inducer size. No slugs or plugs unless the inducer wheel is nipped down to 2.6.
26. The vehicle must retain the original factory wheelbase and truck width
27. An O.E.M.- style suspension is mandatory. Lowering and raising the vehicle height with suspension mod. is permitted. Traction bars are permitted. Blocked rear ends are allowed. Drive shaft loops, u-joint shields, and kill switches are mandatory.
28. All drivers must wear approved helmet.
8000# 3.0 Diesel
1. Hanging weights are permitted. Weights may not extend more than 60 inches from the center of the front axle.
2. The batteries must be securely mounted. They may not be located in the driver compartment or forward of the radiator core support.
3. The body must be O.E.M. truck body including the full bed floor. The body must retain full sheet metal.
4. 4-wheel hydraulic brakes are mandatory.
5. The O.E.M. chassis is mandatory. The engine must be in the O.E.M. location for the body used. The vehicle must retain full O.E.M. chassis. Wheel tubs, back-half conversions, tube chassis, etc. are prohibited.
6. The radiator must be in the stock location and at least stock size.
7. All drivers must have a valid state driver’s license.
8. The O.E.M. restraint system is mandatory and must be worn.
9. Drive shaft hoops and U-joint shields are mandatory on all exposed joints and shafts and must be securely mounted.
10. The engine block must have been available as a factory option on a one-ton or smaller truck. Blocks must circulate coolant freely. The use of concrete or other block fillers are prohibited. Engine RPMs are unlimited.
11. All vehicles must be equipped to direct exhaust upward. The exhaust must exit rearward of the driver’s compartment. 2-3/8” diameter bolts must be placed through the exhaust pipe in a cross pattern within one inch of each other and as close to the turbo as is practical.
12. A fire extinguisher is mandatory and must be securely mounted.
13. The complete O.E.M. firewall is mandatory.
14. The complete O.E.M. floor pan is mandatory.
15. The fuel injection pump is limited to a stock-appearing, O.E.M. engine make-specific pump only. Dual high pressure common-rail fuel pumps or HPOPs are permitted. The P7100 injection pump if equipped must utilize a stock-appearing governor.
16. The O.E.M. fuel tank is mandatory and must be used. Racing fuel cells are prohibited and must be removed.
17. The hitch must be a “Reese”-style hitch. Reinforcements are permitted. Trick hitches are prohibited. The hooking point must be the rear-most point on the vehicle and must be rearward of the stock location of the tailgate. The hitch height from the ground may not exceed 26 inches.
18. A complete interior including dashboard, door panels, head liner, etc. is mandatory. Two matching front seats are mandatory. All factory controls (lights, signals, horn, windows, wiper, etc.) must be retained and be operational.
19. Nitrous oxide is prohibited. No other oxygen extenders are allowed and must be removed from the truck.
20. Propane is prohibited and the system must be removed from the truck.
21. Open rear-end drop boxes are permitted.
22. Rear suspensions may be blocked. Traction bars are permitted.
23. The tires must be DOT street tires. Cut tires are prohibited.
24. The vehicle is limited to a single turbo charger. The inducer bore on the compressor housing may be no larger than 3.0 inches measured at the smallest diameter area of the compressor wheel. A bushing is permitted to down size the compressor housing ahead of the wheel.
25. Water injection is prohibited. All system components must be removed from the truck.
26. All drivers are required to wear helmets and jackets with a SFI rating of 3-2a-1.
AMERICAN
Big Block Modified Rails
2009-2011
This class is designed specifically for growth and to be affordable to everyone.
Chairman: Dan Moriarity 260-375-2553
Ron Bell 260-375-3024 cell 260-228-1030
Rick Bell 260-468-2268 cell 260-224-3299
Kent Poulson 260-375-3106
Perry Hanlin 260-731-2011
Big Block Modified Rails
