2023 Michindoh Truck and Tractor Pull Association Rules
Rules as of 11/19/2022
All changes highlighted in yellow.
General Rules:      
1. Michindoh Classes are:    
6,000lb. Stateline Pro Street 4x4 (points class)
6,200lb. 2wd Super Stock (points class)  
6,200lb. 4wd Altered Stock (points class)
5,200lb. 2wd Pro Street (points class)  
5,700lb. Michindoh Modified Rails (points class)
8,000lb. Hot Street Diesel  (NO points class)      
Open (see rules) 100% Payback
2. If at the end of a given pulling season, any point’s class that had an average number of entries less than 3 over the course of that season. That class will be transitioned to a 100% payback and will not be a point’s class for the following season or may be dropped.
3. Class rules will not change throughout the current year unless there is a safety issue with a rule. The decision of the board to change a rule deemed to be a safety issue will require a majority vote of the board.
4. All drivers and vehicles in Michindoh classes must be paid Michindoh members and possess a Michindoh pulling vehicle number.            
5. Classes will have a random pulling order from event to event.                              
6. Drivers in all classes must be entered before the start of the pull. Late entries for all                          
classes: If not registered ½ hour before posted start time, you will be fined $20.00 for late                        
entry fee.                                          
7. If you cannot be at the pull on time, you may pre–enter by contacting someone who can be there on time.                    
8. If you break before your class starts, your entry fees will be refunded.                            
9. NO refunds after class starts.                                      
10. The driver who is on the entry form MUST be the driver in the vehicle. If a substitute is required, you must notify Michindoh officials before the vehicle is pulled up to the sled.  
11. Drivers that make a full pull MUST be the drivers in the pull off. NO substitution will be allowed or the pull will be disqualified.              
12. For general safety, the Head Tech Official and/or class tech official may inspect a vehicle at any time. This includes, but does not limit to: pumping for cubic inch, checking the fuel system and any safety item, under the hood or in the drive train. All owners/representatives of all vehicles at any pull site must allow an inspection to be done in his presence. A random pump ball will be used during registration to select who will be pumped. Anyone who refuses will be in direct violation of this rule and will be subject
to disqualification under protest teardown rules.                                  
13. Only the official operating the pump and the owner of the vehicle being pumped will be                        
allowed near the vehicle while being pumped.                                  
14. As soon as the sled returns and/or the start line officials call you, drivers must be ready to                        
pull. The driver will have THREE MINUTES to hook to the sled and tighten the chain.                        
After this time, the pull will be forfeited.                                    
15. Contestant will be allowed 2 attempts to start the sled within the first 100 feet of the pull,                        
at the discretion of the starting flagman. Only 2 attempts allowed to start the sled in the                        
event of a pull off. Vehicles’ are not allowed to return to the pits if involved in a pull off.                        
16. The total weight of the pulling vehicle includes driver.                                
17. Driver’s meeting takes precedence over all written rules.                              
18. Idle speed only while driving in pit area.                                  
19. All electric fuel pumps must be connected through the kill switch.                            
20. All pulling vehicles must have a 3–1/4” wide x 3–3/4” deep opening due to NTPA rule                        
changes on weight transfer hooks.                                    
21. All pulling vehicles must have reverse lights (white lights) and neutral start switches.                        
Light should be mounted near hitch. This is mandatory for all classes.                            
22. There will be no “gimme” hooks for any driver or vehicle.                              
23. All vehicles must have a working fire extinguisher.                                
24. Board of Director has precedence over all.                                  
25. All drivers must wear approved helmets and seat belts.                                
26. All drivers must have valid state drivers license.                                
27. An owner cannot change vehicle and keep same vehicle number and or transfer points.                        
28. With an incorporated safe shut down area, all tracks will be 300 ft long whenever                          
possible. Rather than starting a class all over, the head judge and sled operator may                          
utilize some of the shut down area to extend the finish line to a floating finish if the sled                        
is set properly, as long as the sled will stop the class within 30 ft of the original finish                          
line. A pulling track may be shortened from 300 ft, to maintain a 100 ft minimum                          
shutdown.                                          
29. Vehicles must have a one piece, 1/4” hydro form bell housing on any straight shift. If any                        
modifications are made, modified area must be ground smooth inside and out. All                          
vehicles using a clutch and flywheel assembly will run a full block saver plate of 1/8”                          
steel, with all bolts possible installed. Diesel powered vehicles are exempt from this rule.                        
30. All flywheels must be steel or aluminum and SFI approved. No cast stock flywheels                        
allowed. Each vehicle owner will sign a waiver on the membership form stating that they                        
are running a SFI approved flywheel.                                    
31. All automatic transmissions must have SEMA approved scatter blanket and SFI approved                        
flexplate.                                          
32. Block spacers to accommodate multiple disc clutches must be as substantial as the block                        
flange to retain flywheel. This will be at the tech official discretion.                              
33. All vehicles must have easy and ample access to hitch to hook chain.                            
34. All Reese style hitch inserts must be a class 5 or solid insert. With no movement in any                        
direction.                                          
35. Any engine to be pumped or torn down is allowed 1% max tolerance, due to inaccuracy                        
of our measuring devices.                                      
36. All vehicles must have working hydraulic brakes capable of sliding the tires when                        
applied.                                          
Michindoh Points System
The point’s structure is as follows:
1st 15 place points + 15 hook points /10th 6 place points + 15 hook points
2nd 14 place points + 15 hook points /11th 5 place points + 15 hook points
3rd 13 place points + 15 hook points /12th 4 place points + 15 hook points
4th 12 place points + 15 hook points /13th 3 place points + 15 hook points
5th 11 place points + 15 hook points /14th 2 place points + 15 hook points
6th 10 place points + 15 hook points /15th 1 place points + 15 hook points
                                             7th 9 place points + 15 hook points/16th and lower will receive zero place points + 15 hook points
8th 8 place points + 15 hook points                                                                       
9th 7 place points + 15 hook points                                                                       
 
Points Rules:                                          
To be eligible for 15 hook points, the competitors vehicle must compete in a point’s class, and                        
have paid an entry fee, passed inspection, and paid full Michindoh membership dues.                        
Points are awarded to the vehicle, not to the driver. Each pulling vehicle will receive                        
placing point at each pulling event. First place will be awarded 15 points, Second place will be awarded 14 points, and so on.              
If a pull is cancelled, 15 “show up” points will be issued to those vehicles already                        
entered. At the end of season, all competitors will drop their lowest “place points”/ and distance from that drop on the season. The competitor’s lowest place points may include a missed event. “Show up” and“Hook“ points cannot be dropped.
At the end of the pulling season if there is a tie in points between vehicles in the same                        
class, the distances that each of the vehicles pulled at each of the events will be added                        
together. Whoever has the furthest total distance will be awarded the points championship                      
On–track disqualifications (i.e. out of bounds, loss of weight, etc) will receive last place                        
points and last place payout in class. If there is more than one entry disqualified in a given class,the last place points and payout will be divided equally among the disqualified entries.
Protest and Tear Down Rules:                                      
You may protest (if you are Michindoh member in the same class) to have any                          
vehicle pumped the night of a pull by presenting $350.00 to the president or vice                        
president present. If found to be illegal by the pump, the owner may tear down the                        
engine at their expense to prove it legal or be barred from competition for one year from                      
violation. If the vehicle in question is found to be legal it will keep the $350.00 pump fee.                        
You may also protest to have a vehicle torn down (if you are a Michindoh                          
member in the same class). The person protesting must bring $750.00 cash to the                        
president or vice president present. The protest will be discussed. If the vehicle in                        
question is to be torn down, it will have the option to do it at the track or at the nearest                        
suitable location. The vehicle or engine will be impounded until the tear down. The tear                        
down must happen with–in three days of the protest. If the vehicle in question is found to                      
be legal, all protest fees will go to the owner.                                  
Any vehicle found illegal and/or refuses to be protested or teched, will be barred                          
from competition for one year from violation. Unless, they are willing to pay a                          
reinstatement fee of $500.00 to the club and prove the vehicle is legal. Any money and                        
points won the day of the protest will be returned or withheld by the club. If the vehicle                        
in question refuses to refund winnings, the amount of those winnings will be added to                        
the reinstatement fee.                                        
The tech–official for the class has the right to check any vehicle they feel may be in                        
violation of any rules without a protest fee with the permission of the board of directors.                        
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, except in the case of internal breakage.                          
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.                                      
12. If DQ for cheating, all points and money will be forfeited.                              
13. If a DQ vehicle will receive last place points in the class, and if more than 1 vehicle is                        
DQ, they share at the bottom of the list in the same order they were otherwise. Out of                          
bounds only.                                          
Track Preparation:                                        
A Michindoh safety tech or officer will be in charge of track preparation and                          
maintenance. All event personnel will be under their supervision. Failure of event                        
personnel to comply will mean cancellation of the event. This rule has been added to                        
provide better pulling tracks. Michindoh members will also be required to assist the                        
officers with other track work as needed at the pulls, such as lining up pulling vehicles,                        
flagging, etc.                                          
6200lb. 4wd Altered Stock
Rules locked, 2023,2024,2025
With the exception of safety requirements approved by the board.
Must also follow all general rules listed above.
1. Hood modifications and upright headers are acceptable.  
2. Tires must be D.O.T. approved for highway use and uncut. No recaps.  
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, if bed floor is removed it must be covered and  
not visible to spectators.  
7. Will allow racing seat.  
8. Fuel tanks are allowed to be in front of vehicle if they are S.F.I. and have braided hoses  
and pressure coupler. Batteries may be mounted out in front of the truck but battery must be  
enclosed. No Batteries in cab.  
9. All drivers are required to wear full face helmets and jackets and pants with a SFI rating  
of 3–2a–1. Shoes also recommended.  
10. All drivers are required to wear seatbelts.  
11. All vehicles must have a working fire extinguisher.  
12. No tilt bodies are allowed.  
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 36 inches from center of rear end  
maximum of 48 inches.  
2. You must use a steel plate hook point with a minimum 3 ¼ wide 3 ¾ deep 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. Maximum 514 cubic inch + 1% tolerance, naturally aspirated V8 engine.  
2. Any single four–barrel carburetor is allowed.  
3. No turbochargers or superchargers.  
4. No fuel injection unless factory equipped.  
5. Cast iron block and Any Conventional style head no spread port heads no big duke or big chief heads.  
6. No pressurized fuels. No methanol alcohol fuel.  
7. Front of engine block cannot extend more than 10 inches of the center of the front axle.  
Front axle must be in stock location.  
Harmonic Balancer:  
1. All engines must be equipped with a harmonic balancer or dampener meeting SFI  
Spec18.1.  
2. All vehicals are required to shield all rotating mass mounted on the front of the  
crankshaft, if unobstructed. Shields to be from frame rail to frame rail and top to  
bottom. Shields to be a minimum of .125” steel or aluminum fastened by at least 2  
evenly spaced 3/8” grade 5 bolts.  
Transmissions & Drivelines:  
1. Maximum wheel base 134 inches center to center.  
2. Stock type one ton or two ton drive–lines are permitted. No planetary.  
3. Drop box’s are allowed. Reverses are not allowed.  
4. May block frame solid.  
5. Must have scatter proof bell housing or automatic transmission blanket, and S.F.I  
flywheels.  
6. No tube chassis are allowed.  
U–joint shielding:  
1. All u–joints and yokes must have a 360 degree cover, at least 6” long (covering entire  
yoke and u–joint), 1/4” thick steel (3/8” thick aluminum). Inside diameter of shield will  
be no more than 2" larger than u–joint. If cover is cut in half it must be fastened no farther  
than 1” from ends with at least 3/8”– grade 8 bolts. Must be bolted a maximum of 6” from  
bolt to bolt. All intermidiate shafts need covered 360 degrees. NO HINGE STYLE  
fasteners permited. Must be securly fastened.  
Drive shaft loops:  
1. Drive shaft loops required (3/4” or wide), 1/8” or thicker steel (1/4” or thicker  
aluminum). No more than 2” larger than the largest u–joint. If cut in half, must be bolted  
within 1” from ends and a maximum of 16” apart from loop to loop (multiple loops). If  
using a one piece cover it must be bolted a maximum of 6” apart the entire length and at  
least 1” from ends. All fasteners must be at least 3/8”– grade 8 bolts. NO HINGE STYLE  
permited. Must be securly fastened.  
ALL THE ABOVE 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. 2wd Super Stock
Rules locked, 2023,2024,2025
With the exception of Safety requirements approved by the Board.
Must also follow all general rules listed above.
Engines:  
1. Maximum single 514 cubic inch 1% tolerance, naturally aspirated V8 engine.  
2. Cylinder heads: two valves and one spark plug per cylinder. Aluminum heads are allowed. No  
less than 24 degree head. No Hemi heads.  
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, no pressurized fuels, no methanol.  
Harmonic Balancer:  
3. All engines must be equipped with a harmonic balancer or dampener meeting SFI  
Spec18.1.  
4. All vehicals are required to shield all rotating mass mounted on the front of the  
crankshaft, if unobstructed. Shields to be from frame rail to frame rail and top to  
bottom. Shields to be a minimum of .125” steel or aluminum fastened by at least 2  
evenly spaced 3/8” grade 5 bolts.  
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 ¼ deep 3 ¾ wide opening at the hook point.  
Tires & Wheels:  
1.Can run any size street legal DOT tire. Maximum size 35x12.50 or 315–70–16 metric. Can run  
34X18.0X15 pulling tires allowed.  
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 a 360 degree cover, at least 6” long (covering entire yoke and  
u–joint), 1/4” thick steel (3/8” thick aluminum). Inside diameter of shield will be no more than 2"  
larger than u–joint. If cover is cut in half it must be fastened no farther than 1” from ends with at  
least 3/8”– grade 8 bolts. Must be bolted a maximum of 6” from bolt to bolt. All intermidiate  
shafts need covered 360 degrees. NO HINGE STYLE fasteners permited. Must be securly  
fastened.  
4. Drive shaft loops required (3/4” or wide), 1/8” or thicker steel (1/4” or thicker aluminum). No  
more than 2” larger than the largest u–joint. If cut in half, must be bolted within 1” from ends and  
a maximum of 16” apart from loop to loop (multiple loops). If using a one piece cover it must be  
bolted a maximum of 6” apart the entire length and at least 1” from ends. All fasteners must be at  
least 3/8”– grade 8 bolts. NO HINGE STYLE permited. Must be securly fastened.  
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.  
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. No batteries in cab.  
5. Must be mounted and working fire extinguisher in the cab.  
6. No gas tanks in the cab.  
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 fiberglass hoods  
being the only exception.  
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 wheelie bars. Maximum ground clearance of 6", and 18" behind rear end.  
19. All drivers are required to wear full face helmets, jackets, pants with a SFI rating of 3–2a–1and 3.3/5 shoes recommended.  
ALL THE ABOVE 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.**  
6000 lb. Stateline Pro–Street
Rules locked, 2023,2024,2025

With the exception of safety requirements approved by the board.
Must also follow all general rules listed above.

General Rules:
1. Drivers must wear approved full face helmet, approved fire jackets and pants with a SFI rating of 3–2a–1, and seatbelts, SFI shoes recommended.  
2. Cowl induction hood allowed–No open holes.  
3. Tires must be D.O.T. approved no bigger than a 33x12.50 inches, or 305–70–16 metric maximum tires size. No cut tires. No recaps.  
4. One ton driveline or less, u–joints, driveshaft, rear end, transmission and transfer case. Trucks must have complete suspension in factory location with at least 1” of travel but may be temporally blocked to pull. All rear–end bars must be forward of rear axle.
5. No special bumpers, snowplow hook ups, or brush guards. Front bumper must be in stock location and nothing protruding beyond the bumper.  
6. The decisions of the pulling officials are final.  
7. Trucks must have reverse lights of some sort.  
8. Must have scatter–proof bell housing or blanket, and a kill switch.  
9. Any unsafe manner of vehicle (on or off track) will be disqualified.  
10. Top 3 placing trucks may be teched after pull. Any truck in violation will forfeit placing and hook fees, Tear down and protest rules apply.  
11. Fuel cells can be added but must be secured inside the bed or under the bed.  
12. Front axle must be in factory location, maximum wheelbase 134 inches. No narrowing of the front or rear axle, 3 rear leaf springs minimum. (No moving axles or transmission or engines).
13. Truck must have a full body. No gutting of truck. Trucks must have full bed and a solid floor made of metal or wood with rear inner fenders and all factory glass. No flatbeds.  
14. Any truck that has been lightened in any way may be penalized by adding weight to the rear of the vehicle at the discretion of the tech official.  
15. All vehicles must have a working fire extinguisher.
16. Must have working hydraulic brakes.
17. No batteries in cab.
18.Truck is to  be teched when crosses the scales Carb/Heads.
Weights:
 
1. Weight can be added, but must be secured and not visible in the front of the vehicle. Weight must be secured and can be visible in the bed of the truck.  
Hitches:
1. Hitch is to be no more than 20 inches off the ground, and hook point must be 42 inches minimum from center rear axle. All vehicles must have easy and ample access to hitch to hook chain. Pivot point of hitch cannot be forward of center of rear axle and must be below top of frame rail. No bars or chains from hitch to axle. All bars or hitch components must fasten to the frame rail only. Hitch opening must be 3 ¼ wide by 3 ¾ deep.
2. Hitches must be tight and have no movement in any direction.  
Engines:
1. Maximum 472 cubic inch +1% tolerance, naturally aspirated V8 engine.  
2. Single four barrel carburetor, maximum 4150 flange allowed. No Dominator, King Demon, or predator carburetors allowed. (Must be no bigger than a 1.750 throttle bore size max will be checked before our first pull and carb will be sealed.)
3. No fuel injection.  
4. Cast iron block and heads must be used. No aluminum blocks factory aluminum heads are allowed. All blocks and heads must have OEM part number. Any production block. No Merlin, Dart, Bowtie, or SVO parts. No hemi heads.
5. Aluminum intakes are allowed.  
6. Headers are allowed must exit down and back.  
7. Electric water pumps are allowed.  
8. Race fuel is allowed, No alcohol, LP, or Nitrous oxide.  
9. All engines are required to have a S.F.I. approved balancer and flywheel.  
10.Front of engine block cannot extend more than 10 inches of the center of the front axle. Front axle must be in stock location.  
Harmonic Balancer:
1. All engines must be equipped with a harmonic balancer or dampener meeting SFI Spec18.1.  
2. All vehicles are required to shield all rotating mass mounted on the front of the crankshaft, if unobstructed. Shields to be from frame rail to frame rail and top to bottom. Shields to be a minimum of .125” steel or aluminum fastened by at least 2 evenly spaced 3/8” grade 5 bolts.
U–joint shielding:
1. All u–joints and yokes must have a 360 degree cover, at least 6” long (covering entire yoke and u–joint), 1/4” thick steel (3/8” thick aluminum). Inside diameter of shield will be no more than 2" larger than u–joint. If cover is cut in half it must be fastened no farther than 1” from ends with at least 3/8”– grade 8 bolts. Must be bolted a maximum of 6” from bolt to bolt. All intermediate shafts need covered 360 degrees. NO HINGE STYLE fasteners permitted. Must be securely fastened. Drive shaft loops:
2. Drive shaft loops required (3/4” or wide), 1/8” or thicker steel (1/4” or thicker aluminum). No more than 2” larger than the largest u–joint. If cut in half, must be bolted within 1” from ends and a maximum of 16” apart from loop to loop (multiple loops). If using a one piece cover it must be bolted a maximum of 6” apart the entire length and at least 1” from ends. All fasteners must be at least 3/8”– grade 8 bolts. NO HINGE STYLE permitted. Must be securely fastened.
ALL THE ABOVE 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.**
   
5,700LB. Michindoh Mods
Rules locked for 2023, 2024, 2025
With the exception of safety requirements approved by the board.
Must also follow all general rules listed above.

General Rules:
 

1.    Weight

 
a.                5,700 lbs.  
2.    Driver  
a.                Must be 16 years of age or older  
3.    Tires  
a.                Whether U.S. or metric numbering system – can be no larger than 18.4 x 38.  
b.               Any cut.  
c.                Aluminum and steel rims allowed.  
d.               Bias or radial / Ag tire only.  
e.                No duals.  
4.    Fuel.  
a.                Commercial pump gas.  
b.               Race gas.  
c.                Aviation fuel.  
d.               No alcohol.  
e.                No nitrous oxide.  
f.                 No pressurized fuel tank.  
5.    Engine.  
a.                American made automotive type engine no larger than eight  
cylinders.  
          b. 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.
A. Must have cast aluminum manifold.  
B. Must except stock rocker arm assembly.  
c.               Maximum 500 cubic inches with a 1% tolerance.  
d.                Open to any block   (Stock bore spacing)  
e.               2 valves per cylinder.  
f.                1 sparkplug per cylinder.  
g.                 No overhead cams.  
h.               Must be naturally aspirated on carburetion.  
i.               Headers must exhaust in an upward direction.  
j.                  All tractors must carbureted with no fabricated sheet metal intakes.  
k.                  Distributors – any factory or aftermarket distributor can be run as  
long as it is MSD 6AL or 7AL compatible msd box as long as it has a chip. k. Ignition – M.S.D. #6AL – 6420 or #6ALN – 6430 – rev limiter box with 7500 chip – Tech officials will check RPM’s of the MSD box with an MSD test box and chips will be tested with the same box for success and RPM’s and shall not be any higher than 7510. If chip is over 7510 it will be automatic disqualification resulting in last place position of that event. MSD box must be mounted in a location that is easily accessible and visible to the Tech official. Chip port must be facing an open position to get test tool on easily. Chips will be removed and checked by a Michindoh Director after your pull. Then can be picked up after the class is over.
6.    Tractor.  
a.                2 wheel drive farm type tractors only – with original transmission  
housing attached to the rear end – must have at least one forward gear – no planetaries.  
b.               Maximum length 14’’ from the center of rear axle to the furthest  
point forward including weights.  
c.                Must have a wide front end – Front tires must track inside rear  
wheel tread.  
d.               Must have working brakes.  
7.    Hitch.  
a.                20” maximum height.  
b.               Hitch point 18’’ minimum behind centerline of rear axle – the  
distance behind the hitch hole may not exceed more than 1 ½’’.  
c.                Must be rigid in all directions.  
d.               Minimum opening 3 ½’’.  
e.                Minimum of 1’’ thick maximum 1 ¼”.  
f.                 Turn buckles or hitch adjustor cannot be higher than the center of  
the rear axle.  
g.               No obstruction 5’’ wide and 24’’ directly about hitch hole.  
h.               Welds and hitch construction will be inspected by Tech official for  
safety.  
8.    Wheelie Bars.  
a.                Must support weight of tractor in its heaviest class.  
b.               Must extend a minimum of 32’’ behind the center of the rear axle.  
c.                Pads must be a minimum of 5’’ inches square with trimmed corners  
optional and not more than 10’’ off the ground.  
d.               Wheelie bars are to be mounted separate from hitch.  
9.    Miscellaneous.  
a.                There will be a required driver safety enclosure, any NTPA style roll  
cage, or a minimum of 2’’ tubing or box tubing with at least 2 bars, with at least 2’’ of clearance between inner fenders and tires – refer to attached diagram for minimum building specifications – Tubing must be a minimum of ninety thousandths of a inch wall thickness. Roll cages will be inspected and stamped by tech officials with year of inspection. Sonic test equipment for steel wall thickness may be used if needed.
b.               Deadman throttle reguired – spring at the carburetor return to idle.   
c.                Ignition kill switch required – must stop fuel pump and ignition –  
must be mounted about the hitch plate – must run electric fuel pump – easily accessible and visible to hitchman on sled.  
d.               May only use an electric fan, no engine driven fans allowed.  
e.                Fire extinguisher – mounted within driver’s reach – must be readily  
accessible and minimum of two pounds.  
f.                 All belts must be 360 degree shrouded with 1/16’’ steel or 1/8’’ or  
thicker aluminum. a. Harmonic balancer (SFI preferred) must be surrounded 360 degrees by a min. 3/16” thick steel – also a metal strap over the center of the balancer must be a min. of 3/16’’ thick and 3’’ wide, no larger than a 2” hole and a 3 in strap. Anything over 2” inch whole up to 3 ½ damper must be completely covered with 3/16” for access to the crank center bolt. Max inch by inch hole is allowed at the timing indicator marks to allow for engine tuning. Entire enclosure must be mounted in at least 3 solid points.
g.               Universal joints, chain couplers and/or drive shaft must be  
surrounded 360 degree by ¼’’ or thicker steel (entire shaft length) from the automatic transmission to the tractor transmission. Round drive shaft cylinder required. If shaft cover is cut in half it should be bolted by 3/8 or larger of grade 5 or better bolts in reasonable spacing for safety. Tech will check over proper spacing for safety.
h.               Automatic transmission must be surrounded by a SFI 4.1 or 4.2  
rated transmission blanket at least 18’’ in length. Blanket must be mounted to the block with no more than a 4’’ gap between the block and the blanket and have at least 3 straps encompassing the transmission. ¼ steel may be used instead with same dimensions applying. Must be equipped with an SFI flex plate.
i.                  Everyone must run an automotive type automatic transmission with  
a torque converter – mounted directly to the back of the engine.  
j.      Side shields – must be made from 1/8’’ or thicker steel or ¼’’ or  
thicker aluminum – must cover from front to rear of block and cover from the bottom of the head to 2’’ below crankshaft center line – must be secured at all four corners.  
k.    Tractors can be driven or are allowed to be towed around in the pit  
area.  
10. Driver Safety Equipment.  
a.    Single layer fireproof driving suit.  
b.   Full face helmet – D.O.T. approved.  
c.    High back molded vinyl, fiberglass, or aluminum race seat.  
d.   4 or 5 way harness.  
e.    Automatic shifter must activate reverse clear lens back up light –  
with unobstructed view to hitchman on the sled.  
f.     All non – barbed fittings (cooling or fuel) must be double clamped.  
g.   Driver’s equipment must on tractor while being scaled. If equipment  
is not on vehicle tractor will not be allowed to be scaled.  
1.    Kill switch must stop ignition and fuel pump.  
2.    Tractor must have a neutral start safety switch.  
3.    Backup light and kill switch must be easily accessible and seen by hitch man on sled and may be checked randomly at pulls. At pulls colored tie straps will be applied to kill switch to signify that tractor has been through tech.
For Technical questions regarding Mods please call Tyler Clifton cell #419-296-1552   
ALL THE ABOVE 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.**
2 Wheel Pro Street 5200#
   
Rules locked 2023,2024,2025
With the exception of safety requirements approved by the board.
Must also follow all general rules listed above.

General Rules:
 
ENGINE:
Gas only, NO alcohol, E85, or fuel additives.
Naturally aspirated engines only.
MAX cfm carb, 4150/4160 Holley flange only. (No Dominators, King Demons, SV1, or split carbs.)  
MAX 478 cubic inches +2%  
Small blocks are NOT required to be pumped.  
All pumping must be done at the track.  
Blocks and heads MUST be cast iron.  
Aftermarket blocks and heads are allowed
No aluminum blocks and heads are allowed.
SFI approved harmonic balancer.
MUST use SFI approved flywheel.
Motor must be mounted within 6? of original V8 mounts.
Must have a catch can for the radiator.
DRIVETRAIN:  
Dual disc clutches are allowed.
No reversers or drop boxes allowed.

Big rear axle is Allowed with small block only .
One-ton rear axle or less.  
No planetaries allowed.
Manual transmission MUST use a SFI approved bellhousing (blow proof).
Must use a block saver plate.
If bellhousing has been altered in any way (cut, torched, or welded) you must also run an SFI approved transmission blanket.
Automatic transmissions MUST be covered by an SFI approved transmission blanket.
HITCH SETUP:
36” minimum hook point from center of rear axle.
48” maximum hook point from centerline of rear axle.
Bolted clevis or hitch point must have 3.5” hole.
Hitch height is 30” maximum.  
Must have sled stops that extend at least 8” past the rearmost point of the truck.
CHASSIS:  
Rigid suspension is permitted.  
Front weights must not extend greater than 60” from centerline of front tires.
DOT tires only. 35×12.5 maximum manufacturers tire size, no cut, siped, or barred tires allowed.
All U-joints and chains must be covered with a 360” loop and be at least 6” wide constructed of 1/8” steel or 3/16” aluminum.  
Vehicles up to 140” center to center of axles may run fully weighted.  

Vehicles over 140" no weight rack front of bumper.
No vehicles over 146” allowed.
 
ALL THE ABOVE 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.**

 

 

 

8000# Hot Street Diesel Trucks

 

LOCKED FOR 2023


 

 

Safety
1) All General Truck Safety Rules apply.

Driveline/chassis/suspension
2) The OEM chassis is mandatory. The engine must be in the OEM location for the body used. The vehicle must retain the full OEM chassis. Wheel tubs, back half conversions, tube chassis prohibited.

3) Functional hydraulic brakes are mandatory front and rear.

4) 1 ton or smaller OEM type transmission and transfer case is mandatory. No Drop boxes or reverser style transmission.
 
5) Front axle must be 1 ton or smaller, no fabricated housings. Blocks, stops, or limiting straps are permitted. Traction bars and other like devices are permitted. Lift kits are permitted.

6) Rear axle must be 1 ton or smaller, no fabricated housings. Suspension blocks/stops from frame to axle allowed but must be removable, cannot be welded solid or bolted to axle. Traction bars and other like devices
are permitted. If equipped with air bags, the compressor must be disconnected or valve stem to bags removed. Air bags cannot be filled.

7) Must retain the original OEM power steering. Non OEM power assist methods are prohibited.

8) Tires must be DOT approved, 10” rim width max. No cutting or grooving. No chains. Front and rear tires must track within centerline of each other. Max tire size 35”. Dual rear tires allowed, must be run on factory
equipped dually trucks with accompanying dually rear beds. Dually trucks will be limited to the OEM tire size.

Body
9) Must use OEM truck body, including a full bed floor. The body must retain full sheet metal. Aftermarket hoods are permitted, no fiberglass. The hood must be closed and securely latched while the vehicle is hooked
to the sled. The complete OEM firewall and OEM cab floor is mandatory.

10) Batteries must be securely mounted. No batteries in the cab or in front of the radiator core.

11) Radiators must be in the stock location and be of at least factory size for the specific model truck.

12) A complete interior, including factory dash, door panels, carpet/rubber floors, headliner, etc. is mandatory. Two factory front seats are mandatory and must be fully upholstered. The use of hand throttles is prohibited.
 
13) Complete headlight and taillight assemblies are mandatory and must be operative. Headlights cannot be on while hooked to the sled. Complete OEM glass windshield and windows are mandatory. Windows must
be operative per factory specifications that is they must open and close via OEM electrical or mechanical means. All factory lights, signals, horn, windows, etc. must be retained and be operative.

14) OEM style fuel tank is mandatory. Fuel cells are not allowed.

15) Must have rear bumpers/sled stops to withstand an impact from sled.
 
Weight/Hitch
16) Truck weight max 8000 LBS with driver. Trucks weighing less than 8000lbs are permitted to add additional ballast to meet the 8000lbs max weight. Any additional weight must be securely fastened on the truck, no weights in cab. Trucks weighing from the factory over 8000lbs can pull with a “grace” of up to 9000lbs. However, no additional weight ballast is permitted, and vehicle will be subject to 24” MAX hitch height. Any final decisions rest with the tech
officials.

17) No weight boxes, bars, or hanging weight ahead of the front bumper except for standard cab long bed wheelbase; this wheelbase configuration can hang weight on a removable style bracket with removable weights only, No boxes or permanently fixed brackets. Front bumper must be in the stock location.

18) Hitch must be a Reese style frame only mounted receiver type hitch and solid in all directions. No drawbar type hitches allowed. Hitch cannot protrude thru bed floor. Reinforcements of the frame permitted but must not extend forward of the centerline of rear axle or to the axle housing. Trick hitches are prohibited.
 
19) Max hitch height 26” at hook point. Hook point hole may not be more than 1 ½” from back edge of hitch and must have 3” wide by 3 ¾” long opening parallel to the ground. Hook may be no more than 1 ½” thick and no less than 1” thick. Hooking point must be no less than 44” back from the center of the rear axle. Hitch must be clearly accessible, bumpers or roll pans may be notched.

Engine/Turbo
20) The engine is limited to an OEM make-specific compression ignition engine available as an option in a 1 ton or smaller truck. The engine does not need to be OEM make specific to the chassis (I.E. Cummins in a Ford chassis is allowed). Filled engine blocks are prohibited. Aftermarket cast cylinder heads are allowed.

21) All trucks must have exhaust exit going upward and rearward of the truck cab. Exhaust exiting through the hood or the fender-well are prohibited. A 90 degree turn up pipe is required for exhaust exiting at the stock location/horizontal angle. Must have two 3/8” bolts that cross 1” apart from each other within 3” of the turbo outlet.

22) #1 or #2 diesel ONLY.

23) The use of multiple high pressure common-rail fuel pumps is permitted. The use of multiple HPOP’s in Ford Powerstroke is permitted. P7100 Pump max for mechanical systems. Mechanical injection pumps are recommended to have a mechanical fuel shut off.

24) NITROUS OXIDE, PROPANE INJECTION, AND WATER METHANOL ARE NOT PERMITTED. NO INJECTABLES OF ANY KIND ARE ALLOWED!

25) Aftermarket intake manifolds and turbo intakes are permitted. Air filters are not required. Intake piping to turbocharger may not extend outside the OEM body.

26) Air to air intercoolers and factory equipped air to water intercoolers (6.7 Powerstroke) are permitted. NO air to water intercoolers allowed on vehicles that did not come from the factory with them. Intercooler must be in
the factory location. If the truck did not come with a factory intercooler, it must be mounted in front of the radiator and behind the grille.
 
27) All engines turning 4500rpm and higher must be equipped with a harmonic balancer or damper meeting SFI 18.1

28) You may utilize the factory turbocharger, or any aftermarket turbo in a single application. All turbos and affixed piping must fit under the hood of the truck and may not extend outside of the factory body work. Cowl hoods are allowed.

 
ALL THE ABOVE 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.**
 
   
   
 OPEN
$50 entry100% payback
Must also follow all general rules listed above.
Open class is subject to change at anytime by board Must meet all safety rules to class you would normally run.  
540ci maximum  
HITCH  
2WD Gas 30”  
4WD Gas 26”  

8000lbs Hot Street Diesel 24"

  
Farm Tractors 20”  
Driveshaft Loops:  
2. Drive shaft loops required (3/4” or wide), 1/8” or thicker steel (1/4” or thicker aluminum). No more than 2” larger than the largest u–joint. If cut in half, must be bolted within 1” from ends and a maximum of 16” apart from loop to loop (multiple loops). If using a one piece cover it must be bolted a maximum of 6” apart the entire length and at least 1” from ends. All fasteners must be at least 3/8”– grade 8 bolts. NO HINGE STYLE permited. Must be securly fastened. U–joint shielding:
2. All u–joints and yokes must have a 360 degree cover, at least 6” long (covering entire yoke and u–joint), 1/4” thick steel (3/8” thick aluminum). Inside diameter of shield will be no more than 2" larger than u–joint. If cover is cut in half it must be fastened no farther than 1” from ends with at least 3/8”– grade 8 bolts. Must be bolted a maximum of 6” from bolt to bolt. All intermidiate shafts need covered 360 degrees. NO HINGE STYLE fasteners permited. Must be securly fastened. Harmonic Balancer:
1.                All engines must be equipped with a harmonic balancer or dampener meeting SFI Spec18.1.  
2.                All vehicals are required to shield all rotating mass mounted on the front of the crankshaft, if unobstructed. Shields to be from frame rail to frame rail and top to bottom. Shields to be a minimum of .125” steel or aluminum fastened by at least 2 evenly spaced 3/8” grade 5 bolts.
ALL THE ABOVE RULES WILL BE STRONGLY ENFORCED DUE  
TO YOUR SAFETY AND THE SAFETY OF OTHERS. THE OFFICIALS’ DECISIONS ARE FINAL