2010 HILL AND HOLE CLASSES
CLASS 1 (STREET STOCK)
THIS IS A 2010 MRA CLASS
GENERAL
This class is
intended for trucks and Jeeps that are primarily street driven, have minimal modifications and are street legal. Engine, frame
and body must be of same make.
IN ADDITION TO
ALL GENERAL AND SAFETY RULES - THE FOLLOWING CLASS RULES WILL APPLY.
BODY
1) Stock steel body
(minimal cutting allowed only for tire clearance)
2)
Wheel base must be stock for frame and body.
3)
Firewall cannot be cut, relocated or reshaped.
4)
Must retain factory floor pan.
5) Flatbeds must
meet tech approval.
6) Must retain stock glass.
7) Headlights and taillights required (non operational ok)
8) Front bumper required
9) Interior cannot be gutted.
10) Race
seats allowed (4 point harness required with race seat)
CHASSIS
1) Full uncut OEM or OEM
replacement factory frame front to rear..
2)
OEM style suspensions only - Aftermarket lift kits allowed. (No removal of leaf springs allowed, No fiberglass leaf springs allowed).
3) Front and rear differentials, transmission and transfer casecan be upgraded. No final drives or Unimog axles.
4) NO trans brakes allowed. Enclosed Transfer Case allowed)
5) Fuel tank, battery and radiator must be in stock location.
6) Maximum 36" Unaltered DOT tires only.
ENGINE
1) Motor must
pull 17 “of vacuum at 800 RPM’s. (No Vacuum pumps allowed)
2) Big block engines in full size ¾ or 1 ton trucks only (Unless OEM)
3) No V8’s in mini trucks or mini SUV’s (Unless OEM)
4) Engine must be located in stock location.
5) No aluminum engine blocks or aluminum heads (Unless OEM)
6) Single gas carb limited to 4150 / 4160 (no Predators, Dominators,
no splits, no stretched)
7) OEM fuel injection
only.
8) Cast aluminum intake only (no tunnel
rams or sheet metal intakes)
9) Headers are
allowed, mufflers are required and exhaust must extend to behind the drivers seat.
10) NO nitrous, blowers or turbo permitted unless OEM equipment).
CLASS 2 (SUPER STREET) ****
THIS IS A LOCAL CLASS ONLY
GENERAL
This class is intended for racers who have modified their vehicle for competition but still utilize mostly stock components.
They need not be street legal, but they should appear streetable
BODY
1) Stock steel or OEM equivalent fiberglass body (no 1 piece or race bodies allowed)
2) Body must match wheelbase
3) Engine must remain in stock location
4) Factory firewall and floorpan required (rust repair
allowed)
5)
Some
lightening of vehicle allowed ***
6) Glass windshield required Lexan or wire mesh
allowed for windsheild (if wire mesh or a hole is cut in Lexan, Goggles must be worn, no Safety Glasses or other supplements
7) Bumpers and mirrors are not required
8) Driver must sit in stock location
9) Race seats allowed. (4-point harness required with
race seat)
CHASSIS
1)
Unmodified OEM or replacement frame. Must retain two (2) stock cross-members (unused brackets and cross-members may be removed
at discretion of builder)
2) Rear suspension must be leaf spring unless equipped otherwise from factory. Ladder Bar suspension
allowed (no 4-link, 3-link, floaters or coilover shocks allowed)
3) Leaf sprung vehicles must have at least one (1)
functional leaf-spring at each corner
4) Front & rear differentials, transmissions, and transfer cases can be upgraded.
No final drives or unimog axles (any OEM or aftermarket enclosed transfer case allowed
5) Transmissions modifications are allowed (NO TRANS-BRAKES!!!!!!!)
6) Maximum 40” Unaltered DOT tires only
ENGINE
1)
Steel
block motors only (no aluminum blocks)
2) V-8’s in mini-trucks or mini-SUV’s must pull 17” of
vacuum at 800 RPM’s
3) Engine to be mounted in stock location. (No engine setbacks allowed
4) Aluminum heads allowed
5) Single gas carb (no dominators, splits, stretched)
(No Alcohol) 6) OEM fuel injection only.
7) Vacuum pumps and dry sumps are NOT allowed
8)
Open
headers allowed (including up-draft)
9) NO nitrous, Blowers, Superchargers or turbos permitted (unless factory
equipped)
CLASS 3 (PRO STOCK)****
THIS IS A LOCAL CLASS ONLY
GENERAL
This class is intended for racers who have modified their vehicle for competition but still utilize
mostly stock components. They need not be street legal, but they should appear streetable
BODY
1) Stock steel or OEM Equivalent fiberglass body (no
1 piece or race bodies)
2) Maximum Engine setback 12"
from center of balancer to center of differential
3) Firewall may be modified for
engine placement but may not be replaced. Stock floor pans required, rust repair allowed
4) Some lightening allowed ***
5) Glass windshield required Lexan or wire mesh allowed for
windsheild (if wire mesh or a hole is cut in Lexan, Goggles must be worn, no Safety Glasses or other supplements)
6) Bumpers and mirrors are not required
7) Driver must sit in stock location
8) Race seats allowed (4-point harness
required with race seat)
CHASSIS
1) Unmodified OEM or replacement frame. Must retain two (2) stock cross-members (unused brackets and cross-members may
be removed at discretion of builder)
2) Rear suspension must be leaf spring unless equipped otherwise from the factory.
Ladder bar suspension allowed (NO 4-link, 3-link, floaters or coilover shocks allowed)
3) Any style OEM or aftermarket chain or gear drive
transfer set ups allowed
4) Transmission modifications are allowed (NO TRANS_BRAKES!!!!!!)
5) Any axle allowed
6) Maximum 44” unaltered DOT
tires only
7)
Your
motor may not sit more than 12” from the center of the differential (measuring point will be flush with the Harmonic
balancer).
8)
Front
hubs will not be allowed to extend past factory grill location
ENGINE
1) No aluminum blocks
2) V-8’s in mini-trucks or mini-SUV’s do
not have to perform a vacuum test
3) Maximum Engine setback 12" from center of balancer
to center of differential
4) Aluminum heads allowed
5) Single gas carb (no dominators, splits, stretched)
6) OEM fuel injection only.
7) Vacuum pumps and dry sumps are NOT allowed
8)
Open
headers allowed (including up-draft)
9) NO nitrous, Blowers, Superchargers or turbos permitted (unless factory equipped)
CLASS 4 (SUPER MODIFIED)
THIS
IS A LOCAL CLASS ONLY
BODY
1) Must have a body
2) A firewall and floorpan must be present
protecting driver from engine and driveline components.
3) Driver must sit in stock location (no
center seats)
4) Glass not required
5) Gutting of interior and bed allowed
CHASSIS
1) The main frame must be constructed of a minimum 2”X3” steel or OEM frame front
to rear. Round tube can be used for additional bracing.
2) A 6 point cage is required if the vehicle is gutted to point of affecting
structural support
3) Any suspension is allowed
4) Transbrakes are allowed
5) No maximum tire limit
ENGINE
1) No Aluminum Blocks
2) Engine can be mounted anywhere
3) Any carb or injection system
allowed
4)
Vacuum
pumps and dry sumps are allowed
5) All power adders allowed
CLASS 5 (2.5
TON OUTLAWS)
THIS
IS A LOCAL CLASS ONLY
BODY
Please refer to class 4 for the
same rules apply
CHASSIS
1)6
point cage required if vehicle is gutted to the point of affecting structural support
2) Must have 2.5 ton Rockwell face
or top loaders or heavier. (NO ONE TON AXLES)!!!!!!
ENGINE
RUN WHAT YA BROUGHT AND HOPE
YOU BROUGHT ENOUGH!!!!!!!
CLASS 6 (TRACTOR TIRE )
THIS IS A LOCAL CLASS ONLY
BODY
Please
refer to classes 4 & 5 for the same rules apply.
CHASSIS
1) No lighter than a 1 ton axle
2) Minimum tire sizes 46” DOT, 44”
agricultural
ENGINE
Please
refer to class 5 for the same rules apply.
No rails!!!!!!!!!!
CLASS 7 (UNLIMITED)
THIS IS A
2010 MRA class
1) Must be 4 wheel drive.
2) Any
frame and suspension allowed.
3) Any engine,
transmission combination allowed.
4) Any power
adders allowed.
5) Any tire combination allowed.
6) Any fuel allowed. 7) 90 degree deflector required on any aircraft engine
*** “Some Lightening”: Defined as the following, Floor of bed can be removed, bed
sides must remain factory other than cutting for tire clearance. Bed must still utilize factory body mounts. Tailgate can
be removed. Flatbeds must be approved by tech. Interior gutting can consist of replacing seat/seats with a single race seat
in stock location (must still confirm to general/safety rules). Dash COVER can be removed. Doors CAN be removed/gutted to
a single skin. Must still have factory radiator support. No structural layers of cab can be removed.
**** 4/6 cylinder trucks running in classes 2 and
3 will be allowed unique benefits to stay competitive with the v-8 trucks. These befits will include:
1)
Gutting
allowed
2)
Glass
not required (general safety rules apply)
3)
1 power
adder of choice
4)
Suspension
of choice
5)
Trans
brakes allowed
6)
No cut
tires must be DOT and abide by size limitations of the class you are running in
7)
4/6
cylinder trucks will however, still require the factory style motor and frame
