2017
Michindoh Truck and Tractor Pull Association Rules
Rules as of 1/25/2017
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)
8,500lb.
Pro Farm Tractors (points class)
9,500lb.
Hot Farm Tractors (points class)
5,500lb. Michindoh Modified Rails
(points class)
7,800lb. 2.5
Diesel Trucks (points class)
Open (see rules) 100% Payback
Michindoh
Points System
The points structure is as follows:
1st 15
place points + 15 hook points 11th 5
place points + 15 hook points
2nd 14 place points + 15 hook points
12th 4
place points + 15 hook points
3rd 13
place points + 15 hook points 13th 3
place points + 15 hook points
4th 12
place points + 15 hook points 14th 2
place points + 15 hook points
5th 11
place points + 15 hook points 15th 1
place points + 15 hook points
6th 10
place points + 15 hook points 16th
and lower will receive zero place points
7th 9
place points + 15 hook points and
15 hook points
8th 8
place points + 15 hook points
9th 7
place points + 15 hook points
10th 6
place points + 15 hook points
Points
Rules:
To be eligible for 15 hook points,
the competitor must compete in a points 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 from the season. The competitors 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 drivers 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.
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. 4wd Altered Stock
Rules locked, 2016, 2017
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.
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 3 Ό wide 3 Ύ 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 limit.
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 heads only, except FORD FE allowed to run aluminum cylinder heads.
6. Aluminum
intake may be used.
7. No
pressurized fuels. No methanol alcohol fuel.
8. 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 boxs are allowed.
4. May block frame
solid.
5. Must have
scatter proof bell housing or automatic transmission blanket, and S.F.I flywheels
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
2016, 2017, 2018
With the exception of Safety
requirements approved by the Board.
Must also follow all general rules
listed above.
Engines:
1.
Maximum single 485 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 Ό deep 3 Ύ 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 drivers 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 4wd
Rules locked
2016, 2017, 2018
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 for highway use 33x12.50 inches, or 305-70-16 metric maximum
tires size. No cut tires, No boggers. 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. All drive
lines 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 brakes on all 4 wheels.
17. No batteries
in cab.
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 (may be change by board due to
track conditions) is to be no
more than 22 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 Ό wide by 3 Ύ deep.
2. Hitches must
be tight and have no movement in any direction.
Engines:
1. Maximum 472
cubic inch, naturally aspirated. Engines must be in factory location.
2. Single four
barrel carburetor, maximum 4150 flange allowed. No Dominator, King Demon,
or predator carburetors allowed.
3. No fuel injection.
4. Cast iron
block and heads must be used. No aluminum blocks or heads. All blocks and
heads must have OEM part number. Automotive production block only. No Merlin, Dart, Bowtie, or SVO parts. No hemi heads.
5. Aluminum
intakes are allowed.
6. Headers are
allowed. All exhausts must run through the muffler and be at least to the rear
of cab.
7. No magnetos.
8. Electric
water pumps are allowed.
9. Race fuel is
allowed, No alcohol, LP, or Nitrous oxide.
10. All engines
are required to have a S.F.I. approved balancer and flywheel.
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.
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:
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.
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.**
9,500lb.
Hot Farm Tractors
Rules
locked 2016, 2017, 2018
With the exception of safety requirements approved
by the board.
Must also follow all general rules
listed above.
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 after cooler allowed. AGRICULTURE/OEM USE ONLY.
4.
Turbo limited to 3" inlet, 3 1/2" outlet.
a.
Compressor wheel must protrude into the 3 bore at least 1/8 inch.
b.
All turbine wheel blades must protrude into the 3.5 bore at least 1/8 inch
c. Intake and
exhaust will be measured at the intersection of the wheel face and tip diameter.
d. No variable
geometry turbo.
5.
No additional openings in compressor housing outside the 3 opening. MWE groove
is allowed to be open no more than .200.
6.
Factory cast iron cylinder head and block, no aluminum or deck plates.
7.
Diesel fuel only, no additives or pressurized fuels,
NTPA fuel guidelines 409.
8.
Stock appearing manifolds, intakes and exhaust.
9.
Maximum of two valves per cylinder.
10.
Engines must be from same manufacturer and must bolt in stock location without
modification.
a.
Any
and all engine upgrades must not cross manufacturers lines and must be
approved by class members and Board of Directors.
i.
Class members
and Board of Directors have approved the use of a 12 valve 5.9L Cummins in an
Oliver 16xx-18xx series chassis.
11.
Mechanical fuels systems only. No computerized or electronically controlled
fuel systems. No ice on board.
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 3 Ό wide 3 Ύ deep opening 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
electric kill switch wired to the emergency air-shut-off.
3.
Must have a mandatory manual three-way dump valve ahead of
the injection pump, to be operated by the driver.
4.
Must have working
fire extinguisher that is within reach of the driver.
5.
Must have working, individual rear brakes. Must have needle
bearing cross in differential.
6.
Must have wheelie-bars.
7. Must have clutch blanket or steel shield
installed 270 degrees 3/8 inch thick, and 12 inches wide.
8.
Seat belts required.
9.
Roll over protection mandatory. 3 bar roll cage manufactured from 2 ODx.120
wall.
10.
Must have a steel flywheel and clutch assembly.
11.
Side shields-Engine side shields are mandatory. Shields must be solid and
minimum of .060 thick steel, or .120 thick aluminum.
a. All in line
engines are required to have an additional inner side shield consisting of
.125 thick steel, or .250 thick aluminum inside the current side shields.
This shield is independent of the current shield and must extend from the
bottom of the head to the centerline of the crankshaft and extend the full
length of the block on each side of the engine.
12.
All inline turbocharged engines are required to have one 3/8 or larger cable
that surrounds the engine block and head. This cable must be placed between the
first and second cylinder. Cable must have 2 clamps at the splice and have no
more than 4 of slack.
13.
Tie-bars securing front frame rails to rear axle housing are mandatory.
14.
All drivers are required to wear full face helmets and jackets and pants with
SFI rating of 3-2a-1 and shoes with a SFI 3.3/5 rating.
15.
Must have 2-3/8 bolts in a cross pattern installed in exhaust pipe.
16.
Front skies are mandatory. All tractors must have skid plates mounted in line
with each frame rail and extended from the center of axle forward (on both
sides) equal in strength to frame rail material. Skid must be securely mounted
and braced to the cassis. Recommended skid surface to be a minimum of 4 inches
wide and 12 inches long with a minimum of 6 inches curve when measured from the
front of most part of rolled edge. Maximum ground clearance is bottom of wheel
rim not to exceed 4 inches with front tires in normal position.
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.
Appearance:
1.
Tractor must be in stock appearance, hoods, grills, & fenders, (except
injection pump & after cooler).
2.
All tractors that utilize tube ladder-type frames must be covered on outside
with steel or aluminum 0.060 thick.
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.
5.
Stock bell housing, stock transmission housing, and stock final drive housing
or manufactures replacement. No component chassis.
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.**
8,500lb. Pro Farm Tractors
Rules locked 2016. 2017, 2018
With the exception of safety requirements approved by the board.
Must also follow all general rules
listed above.
Engines:
1.
Maximum 510 cubic inch limit, 1% tolerance.
2.
Water injection is allowed. No oxygen carriers or combustion accelerators
allowed. Water only.
3.
Turbo are limited to 3" inlet x 3.5 outlet.
a.
Compressor wheel must protrude into the 3 bore at least 1/8 inch.
b.
All turbine wheel blades must protrude into the 3.5 bore at least 1/8 inch.
c. Intake and
exhaust will be measured at the intersection of the wheel face and tip
diameter.
d.
No variable geometry turbo.
4.
No additional openings in compressor housing outside the 3" opening. MWE
groove is allowed to be open no more than .200.
5.
Factory cast iron cylinder head and block no aluminum and
no deck plates.
6.
Diesel fuel only, no additives or pressurized fuels,
NTPA fuel guidelines 409.
7.
Stock appearing manifolds, intake and exhaust.
8.
The largest fuel injector pump allowed will be a Bosch P series pump with only
one plunger per cylinder.
9. Maximum of two valves per cylinder.
10.
Engines must be from same manufacturer and must bolt in stock location without
modification.
b.
Any
and all engine upgrades must not cross manufacturers lines and must be
approved by class members and Board of Directors.
i.
Class members
and Board of Directors have approved the use of a 12 valve 5.9L Cummins in an
Oliver 16xx-18xx series chassis.
11.
Mechanical fuels systems only. No computerized or electronically controlled
fuel systems. No ice on board.
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 1 1/2 inch difference between hitch mounting point and hitching
point.
5.
Hook hole is required to be a minimum of 3 Ό wide 3 Ύ deep opening ID.
Tires & Wheels:
1.
Maximum tire size 18.4/38.
2.
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 an electric kill
switch wired to the emergency air-shut-off.
3.
Must have a manual three-way dump valve ahead of the injection pump, to be
operated by the driver.
4.
Must have working
fire extinguisher that is within reach of the driver.
5.
Must have working, individual rear brakes. Must have needle
bearing cross in differential.
6.
Must have wheelie-bars.
7.
Must have clutch blanket or steel shield installed 270 degrees 3/8 inch thick,
and 12 inches wide.
8.
Seat belt required.
9.
Roll over protection mandatory. 3 bar
roll cage manufactured
from 2" OD x .120 wall.
10.
Must have a steel flywheel and clutch assembly.
11.
Side shields Side shields are mandatory. Shields must be solid and minimum of
.060 thick steel, or .120 thick aluminum.
a. All in line
engines are required to have an additional inner side shield consisting of
.125 thick steel, or .250 thick aluminum inside the current side shields.
This shield is independent of the current shield and must extend from the
bottom of the head to the centerline of the crankshaft and extend the full
length of the block on each side of the engine.
12.
All inline turbocharged engines are required to have one 3/8 or larger cable
that surrounds the engine block and head. This cable must be placed between the
first and second cylinder. Cable must have 2 clamps at the splice and have no
more than 4 of slack.
13.
Tie-bars securing front frame rails to rear axle housing are mandatory.
14. All
drivers are required to wear full face helmets and jackets and pants with SFI
rating of 3-2a-1. Shoes SFI 3.3/5 required.
15.
Must have 2-3/8 bolts in a cross pattern installed in exhaust pipe.
16.
Front skies are mandatory. All tractors must have skid plates mounted in line
with each frame rail and extended from the center of axle forward (on both
sides) equal in strength to frame rail material. Skid must be securely mounted
and braced to the cassis. Recommended skid surface to be a minimum of 4 inches
wide and 12 inches long with a minimum of 6 inches curve when measured from the
front of most part of rolled edge. Maximum ground clearance is bottom of wheel
rim not to exceed 4 inches with front tires in normal position.
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.
Appearance:
1.
Tractor must be in stock appearance, hoods, grills, & fenders.
2.
All tractors that utilize tube ladder-type frames must be covered on outside
with steel or aluminum 0.060 thick.
3.
Stock bell
housing, stock transmission housing, and stock final drive housing or
manufacturers replacement. No component chassis.
4.
Maximum wheel base is 114.
5.
Maximum length is 13 from center of rear axle to forward-most part of tractor,
including weights, not including front hitch.
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.**
7,800# 2.5 DIESEL TRUCK
This class is
designed for pickup trucks with a wide variety of performance upgrades.
Both 4x4 and 2WD-24 hitch (Board will adjust 2wd hitch height as
needed)
Must also follow all general rules
listed above.
With the exception of safety requirements approved
by the board.
Ballast:
1. Hanging front weights and weight
boxes (with weights only) are permitted. If used, ballast must be securely fastened.
2. Weight or weight bracket must not extend
more than 60 inches from the center line of the axle. Final decisions rest with
the technical department.
3. Weights and brackets must be
removable by hand.
Batteries:
1.
The batteries must be securely mounted.
They may not be located in the driver compartment or forward of the radiator
core support.
Body:
1.
The body must be the OEM truck body
including the full bed floor.
2.
The body must retain full sheet metal.
3.
The complete OEM firewall and complete
OEM floor pan is mandatory.
4.
A factory installed pickup bed or
commercial style aftermarket bed must be installed.
Brakes:
1.
Front
brakes are required. Four wheel hydraulic functional brakes are recomended. No driveline
brakes.
Chassis:
1.
The OEM chassis is mandatory
2.
The engine must be in the OEM location.
3.
The vehicle must retain the full OEM
chassis.
4.
Wheel tubes, back half conversions, tube
chassis, etc, are prohibited.
Cooling system:
1.
Radiators must be in stock location and
be of at least stock size.
Credentials:
1.
All drivers must have a valid state drivers license.
Driveline:
1.
An OEM transmission and transfer case
are mandatory. They must have been an option on a one ton or smaller pickup.
Driver Restraint System:
1.
The OEM restraint system or SFI 5
point harness is mandatory and must be worn with a DOT approved seat.
Driveshaft 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.
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.
Engine:
1.
The engine is limited to a stock appearing
OEM compression engine, available from the factory in a one ton or smaller
truck.
2.
Cubic Inch limit of 444CI
3.
Block must circulate coolant freely. No
hard filled blocks. Water pumps may be factory or electric powered.
4.
All factory belt driven accessories,
excluding the air conditioning compressor, must be retained and powered via the
crankshaft by a standard serpentine v belt. Electric cooling fans are
permitted.
5.
No individual runner intake manifolds.
(Example: ZZ-customs.). Belt driven alternator. No deck plates. EXAMPLE: NO
HAMILTON HEADS FOR THE CUMMINS AND NO BRODIX HEADS FOR THE DURAMAX.
Exhaust:
1.
All vehicles must be equipped to direct
exhaust upward. The exhaust must exit rearward of the drivers compartment.
Stacks exiting through the fender well and hood are prohibited.
2.
Two (2) 3/8 inch diameter bolts must be
installed through exhaust pipe in a cross pattern within one (1) inch of each
other and as close to the turbo as possible. This will be teched.
Bolt heads welded to the pipe or sheet metal screws to mimic this will be
disqualified.
Fire Extinguisher System:
1.
A working fire extinguisher system is permitted, it
must be securely mounted.
2.
All must have at least a 2 ½ lb
extinguisher with a working gauge mounted within drivers reach.
Fuel:
1.
The fuel must be pump #1, #2 diesel or
Soy/Biodiesel. Fuel must be commercially available.
2.
A fuel cell may be used in place of the
factory fuel tank, but must be mounted in factory location or securely mounted
in bed, no fuel tank in cab.
Fuel Injection Pump:
1.
The fuel injection pump is limited to
cylinder number specific (i.e. 6 cylinder pump on a 6 cylinder motor).
2.
The use of multiple high pressure common
rail fuel pumps or HPOPs are permitted.
3.
P pumps that are allowed are the p3000
and the p7100. Ag governors are allowed.
4.
No Sigma or 12 cylinder pumps allowed.
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.
Intercoolers:
1.
Factory style or aftermarket air to air replacement
only in stock location.
**water to air coolers are prohibited**
2.
Any means of cooling the air before the
engine, except the air to air cooler is prohibited. **No use of ice or
water**
Hitch:
1.
The hitch must be a REECE receiver-style
hitch.
2.
Reinforcements are permitted.
Reinforcements must not extend forward of the center line of the rear axle and
must remain inside the frame rails.
3.
The hooking point must be the rear most
point on the vehicle and must be rearward of the stock location of the tailgate.
4.
The hitch must be horizontal to the
ground and stationary in all directions. Bumper may be notched or removed.
5.
The
hitch height from the ground may not exceed 24. 2WD will be adjusted by board approval at any time.
6.
The hooking point must have a minimum of
3 Ό wide by 3 Ύ deep opening for sled hook.
7.
The hooking point must be a minimum of
44 inches from the center of the rear axle, to the end of the hole where the
hook touches metal to be pulled from, this is the hooking point.
Kill Switches:
1.
All trucks are required to have a kill
switch located on the back of the truck, located near the hooking point.
a.
On trucks with an electric injection
fuel pumps it must have an electric shut off or disconnect for the injection
pump on the back of the truck.
b.
Trucks with a manual injection pumps
must have an air guillotine of the spring loaded type, no butterfly type to
kill the air intake to the engine. It is recommended to have an air shut off on
all trucks.
c.
Kill switch failure will result in
disqualification.
Nitrous Oxide/Propane:
1.
Nitrous Oxide, propane, or other oxygen
extenders are prohibited. All system components must be removed from the truck.
2.
No pressurized bottles.
Rear End:
1.
Non OEM rear end housings are
prohibited. The rear end housing must have been for a one ton or smaller pick
up. Rear axle bolts must be covered with a cap or shield.
Safety Equipment:
1.
All drivers are required to wear full
face helmets, jackets and pants with a SFI rating of 3-2a-1, and SFI rating SFI
3.3/5 shoes recommended.
2.
Seat belts are required.
Steering:
1.
The vehicle must retain the full,
original OEM, factory steering gear.
2.
The vehicle must retain the original OEM
power assistance, if it was so equipped.
3.
Additional stabilizers are permitted.
Street Equipment:
1.
Complete headlamp and tail lamp
assemblies are mandatory and must be operative, except the right front headlamp
may be removed for air inlet to engine.
2.
Complete OEM windshield and all other
windows are mandatory.
3.
Driver window must be able to operate
per factory specifications (open and close).
4.
Must have full interior, but may remove rear
seat for weight.
5.
Hand throttle permitted (must be a deadman style)
Suspension-Front:
1.
The factory suspension configuration
must be retained.
2.
Modifications to the front suspension
that would alter the original location(i.e. moving it
forward or backward) is not permitted.
3.
Strut tower braces, lower tie bars, sway
bars, and limit straps are permitted.
4.
Traction bars and devices are permitted
5.
Air shocks are prohibited.
Suspension-Rear:
1.
An OEM style suspension is mandatory.
2.
Traction bars and devices are permitted,
they must be bolt on only, welds are permitted for
attachment to frame or axle housing. Traction bars if installed must have a
chain or cable or some type of safety device mounted one (1) foot from the
front support to catch the bar in case of failure.
3.
Control arms may be strengthened or
replaced, providing all original mounting points are retained and used.
4.
Sway bars, lower tie bars, limit straps,
and camber kits are permitted.
5.
The rear suspension can be solid with a
removable block.
6.
Air bag spring assist and air shocks are
prohibited.
Tires:
1.
The tires must be DOT street tires
2.
Cut tires are prohibited.
3.
The vehicle must retain the original
factory wheelbase and track width.
4.
35x12.50 inch max.
5.
No chains or studs.
6.
Single tires. No duals.
Transfer Case:
1.
Non OEM transfer cases are prohibited.
It must have been an option on a one ton or smaller pick up
truck.
Transmission-Automatic:
1.
Non-OEM transmissions are prohibited.
The transmission must have been an option for a one ton or smaller truck.
Aftermarket torque converters, valve bodies and internal components are
permitted. Transmission brakes are prohibited. Any non-OEM floor mounted
automatic shifter must be equipped with a spring-loaded positive reverse
lockout device to prevent the shifter from accidently being put into reverse.
2.
A functional neutral safety switch is
mandatory. Vehicle must not start in gear.
3.
All transmission lines must be metallic
or high pressure type hose.
4.
All automatic transmissions must be
equipped with a transmission shield meeting SFI Spec 4.1 and must be labeled
accordingly. A blanket type shield must be used and appropriately labeled as
meeting SFI Spec 4.1 and must extend from the rear of the engine block to the
rear of the tail housing with a minimum of six (6) inch overlap where it is
fastened.
5.
All vehicles using an automatic
transmission must be equipped with a flex plate meeting SFI Spec 29.1.
Transmission-Manual:
1.
Non-OEM transmissions are prohibited.
The transmission must have been an option on a one ton or smaller truck.
Aftermarket internal components are permitted.
2.
A clutch meeting minimum SFI Spec1.1 or
2.1 is mandatory on all engines.
3.
All manual transmissions must be clutch
assisted.
4.
Sequential shifters are prohibited.
5.
All transmissions must have a flywheel
shield labeled as meeting minimum SFI Spec 6.3 or greater.
6.
Applications for which an SFI Spec
flywheel shield is not available may use a properly attached SFI 4.1 or 4.2 blanket that completely covers the bell housing. It must
attach to the rear of the engine block and extend rearward to the transmission
with a minimum of six (6) inch overlap where it is fastened. All transmissions
or clutch pedals will have a safety interlock switch so that vehicle will not
start in gear.
Turbocharger:
1.
S-4, GT42, HX50 and turbo of this type
is the largest turbo allowed.
2.
T-4 mounting flange is the largest
allowed
3.
No clipped wheels or step down covers.
4.
Billet compressor wheels are
allowed.
5.
A single .200 inch MWE groove maximum
allowed.
6.
Inducer bore must be non-removable.
7.
All air must go through the 2.5 inducer
bore and MWE groove,
8.
The wheel must protrude into the 2.5
bore 1/8 inch. Turbo checked with a 2.550 plug.
a.
6.4 Powerstrokes
will be permitted to run modified turbos as long as
the atmosphere turbo does not exceed the OEM straight bore dimension. (2.59)
9.
No TAPERED COVERS will be
permitted.
Water Injection:
1.
Water injection is prohibited. All
system components must be removed from the truck.
Wheelbase:
1.
The vehicle must retain the original
factory wheel base and track width.
2.
Cab and chassis trucks may not exceed
172 inch center to center of axles.
3.
Front dual-wheel spacers may be used
only with accompanying positive-offset dually style wheels.
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.**
5,500LB. Michindoh
Mods
Rules
locked 2016, 2017, 2018
Must also follow all general rules
listed above.
With
the exception of safety requirements approved by the board.
Weight:
1.
5,500lbs.
Driver:
1.
Must be 16 years of age or older
Tires:
1.
Whether U.S. or metric numbering system
can be no larger than 18.4 x 38
2.
Any cut
3.
Aluminum and steel rims allowed
4.
Bias or radial
5.
No duals
Fuel:
1.
Commercial pump gas
2.
Race gas
3.
Aviation fuel
4.
No alcohol
5.
No nitrous oxide
6.
No pressurized fuel tank
Engine:
1.
American made automotive type engine no
larger than eight cylinders.
2.
Maximum 500 cubic inches, 1%
tolerance.
3.
Must be cast iron block, heads, with
visible OEM casting number all must be same manufacturer. No after-market
allowed.
4.
2 valves per cylinder
5.
1 sparkplug per cylinder
6.
No overhead cams
7.
Must be naturally aspirated on
carburetion, dual carburetor tunnel ram allowed.
8.
Headers must exhaust in an upward
direction
9.
All tractors must be carbureted with no
fabricated sheet metal intakes.
10.
Distributors-any
factory or aftermarket distributor can be run as long as it is MSD 6AL
compatible.
11.
Ignition
M.S.D. #6AL 6420 or #6ALN 6430 rev limiter box with 7200 chip Tech
officials will check RPMs of the MSD box with an MSD test box and chips will
be tested with the same box for success and RPMs, and shall not be any higher
than 7210. If chip is over 7210 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
official after your pull. Then can be picked up after the class is over.
Tractor:
1.
2 wheel drive farm type tractors only
with original transmission housing attached to the rear end must have at
least one forward and one reverse operable gear no planetaries
no extra transmission or gearing of any kind outside of the tractors
transmission on the engine Tractor gearing can be changed.
2.
Maximum length 14 from the center of
rear axle to the furthest point forward including weights.
3.
Must have a wide front end Front tires
must track inside rear wheel tread
4.
Must have working brakes
Hitch:
1.
20 maximum height
2.
Hitch point 18 minimum behind
centerline of rear axle the distance behind the hitch hole may not exceed
more than 1 ½
3.
Must be rigid in all directions
4.
Minimum opening 3 Ό wide by 3 Ύ deep.
5.
Minimum of 1 thick maximum 1 Ό
6.
Turn buckles or hitch adjustor cannot be
higher than the center of the rear axle
7.
No obstruction 5 wide and 24
directly about hitch hole
8.
Welds and hitch construction will be
inspected by Tech official for safety
Wheelie
Bars:
1.
Must support weight of tractor in its
heaviest class
2.
Must extend a minimum of 32 behind the
center of the rear axle
3.
Pads must be a minimum of 5 inches
square with trimmed corners optional and not more than 10 off the ground.
4.
Wheelie bars are to be mounted separate
from hitch
Miscellaneous:
1.
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. Tubing must be a
minimum of .090 thousandths of a inch wall thickness.
Roll cages may be inspected and stamped by tech officials with year of
inspection. Sonic test equipment for steel wall thickness may be used if
needed.
2.
Dead man throttle required spring at
the carburetor return to idle
3.
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 hitch man on sled.
4.
May only use an electric fan, no engine
driven fans allowed
5.
A
working
fire extinguisher mounted within drivers reach must be readily accessible
and minimum of two pounds
6.
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, with a max. 1 1/8 hole for access to the crank center
bolt. Max one inch by one 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.
7.
Universal
joints, chain couplers, and/or driveshafts must be
surrounded 360 degrees by 1/4 or thicker steel (3/8" or thicker aluminum)
entire shaft length from the automatic transmission to the tractor transmission.
Round drive shaft cylinder required (one piece not cut or welded together is
recommended). Inside diameter of shield will be no more than 2" larger
than largest u-joint. If shaft cover is
cut hoizontal, vertical, or both, it must be bolted
on both ends of cut (minimum of 1 from edge of cut). Must also be bolted
entire length of cover with a maximum of 12 between bolt spacing. All
fasteners must be at least 3/8- grade 8 bolts. Slip joint/ yoke shaft manditory. There will be NO HINGE STYLE fasteners permited. All yokes and u-joints must be entirely covered
360 degrees. Shield must be securely fastened to frame both ends and center. If
multiple piece shield all ends of shields must be tethered with a nylon strap
2wide x 3/32 thick and fastened with 3/8 grade 8 bolts or larger. Tether
must have metal inserts for bolt to pass through. Must strap both ends of
shield and no more than 2 apart the entire length of shield. Straps must be
bolted to both frame rails and loop around shield. Braided cable may be used
instead of nylon strap.
8.
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. Ό steel may be used instead with same dimensions applying. Must
be equipped with a SFI flex plate.
9.
Everyone must run an automatic
transmission with a torque converter mounted directly to the back of the
engine.
10.
Side
shields must be made from 1/8 or thicker steel or Ό 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
11.
Tractors
can be driven or are allowed to be towed around in the pit area.
Driver
Safety Equipment:
1.
Jackets and pants with a rating of SFI
3-2a1 and shoes with a rating of 3.3/5.
2.
Full face helmet D.O.T. approved
3.
High back molded vinyl, fiberglass, or
aluminum race seat
4.
Four or five point seat harness
required.
5.
Automatic shifter activated reverse
clear lens back up light with unobstructed view to hitch man on the sled
6.
All non barbed fittings (cooling or
fuel) must be double clamped.
7.
Drivers equipment must be on tractor
while being scaled. If equipment is not on vehicle tractor will not be allowed
to be scaled.
8.
Kill
switch must stop ignition and fuel pump
9.
Tractor must have a neutral start safety
switch
10.
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.
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.**
8,500# 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
Diesel
Trucks 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!