Stock
Diesel
1. Weight limit is 8000 lbs.
2. The engine is limited to a stock appearing, OEM
make-
specific compression engine.
3. Intake, exhaust, and fuel enhancing modifications are
allowed. It is recommended to have
either two 7/16" dia.
bolts placed through the pipe perpendicular
to each other,
or a screen of the exact pipe diameter
placed in the pipe(s)
somewhere after the turbocharger.
It is recommended that
the exhaust exit either straight
up or straight down.
4. Fuel must be pump #1/#2 diesel only. Soy/biodiesel fuel
is
permitted.
5. Fuel injecteion pump is limited to a stock appearing,
OEM
engine model specific pump only.
The use of multiple high-
pressure common rail fuel pumps
is prohibited.
6. Nitrous Oxide, Propane, Water/Methanol is prohibited.
All
system components must be removed
from the truck or
bottles removed and lines capped
after solenoids.
7. Limited to 1 turbocharger that must be stock, OEM
make-
specific charger only.
8. The body must be the OEM truck body, including
the full
bed floor. The body must
retain full sheet metal.
Aftermarket hoods are permitted.
9. Visual modifications are allowed, i.e. lift, tires,
wheels, etc.
10. The hitch must be a reciever style hitch attached to
the
frame; reinforcments are permitted.
26" maximum hitch
height. The hooking point
will be measured to the center
of the clevis loop.
11. D.O.T. street legal tires only. No bar tires or cut tires.
12. No hanging weight extending beyond the vehicle. No
added weight allowed
inside of the cab.
13. Solid or blocked suspensions are allowed.
14. A fire extinguisher is recommended and must be securely
mounted within reach
of the driver.
15. General rules apply.
Super Stock Diesel
1. Weight limit will be 8000 lbs.
2. Must be street legal.
3. Hanging weights is allowed but cannot extend more
that
60 inches from centerline of front
axle. No loose weights in
cab or under hood.
4. Engine is restricted to 6 cylinder and 8 cylinder
compression ignition engines.
OEM engine required. The
engine block must have been
available as a factory option
on 1 ton or smaller pickup
trucks.
5. Water injection is allowed. Nitrous, propane, and
alcohol/methanol are
not permitted.
6. Turbochargers are limited to 1 single charger
with a
maximum inducer size
of 2.8 inches measured at the
smallest diameter area
of the compressor wheel. No
bushing may be used.
7. Fuel must be pump #1/#2 diesel only. Soy/Biodiesel
fuel
is permitted.
8. Aftermarket transmissions and transfer cases
are allowed.
9. Exhaust must have either two 7/16"
dia bolts placed
through the pipe
perpendicular to each other, or a screen
after the turbocharger. Exhaust
must be directed away
from the fuel tank and
driver and exit straight up or
down.
10. The body must be the OEM truck body, including the full
bed floor. The body
must retain full sheet metal.
Aftermarket hoods are
permitted.
11. The hitch must be a reciever style hitch attached to the
frame; reinforcements
are permitted. Bumpers may be
notched or removed. 26"
maximun hitch height. The
hitching point will be measured
to the center of the clevis
loop.
12. D.O.T. street legal tires only. No bar tires or cut
tires.
13. Each vehicle must have at least 6 inch wide u-joint
shields
around the rear u-joint constucted
of at least 1/4" steel or
3/8" aluminum that will safely
contain the u-joint and the
end of the rear shaft. All
shields must be securely
mounted to the vehicle. Any front shaft u-joint that is
visible from the side of the vehicle must be shielded in the
same manner.
14. Solid or blocked suspensions are allowed.
15. A fire extinguisher in working condition is required
to be
within easy reach of the driver.
16. General rules apply.
Modified Diesel
1. Weight limit will be 8000 lbs.
2. Hanging weights is allowed but cannot
extend more that
60 inches from centerline
of front axle. No loose weights
in cab or under the hood.
3. Maximum wheelbase is 180 inches.
4. The engine is restricted to 6 cylinder and 8 cylinder
compression ignition engines
witha maximum of 460 cubic
inches. The engine block must
have been available as a
factory option in 1 ton or
smaller pickup trucks. An SFI
rated dampener is recommended.
5. Maximum of 2 turbochargers. Turbos must be completely
enclosed in the engine compartment.
6. Nitrous oxide is prohibited.
7. Propane and water/alcohol/methanol injection is permitted.
Commercially available pump lube allowed.
8. Fuel must be #1/#2 diesel only. Soy/Biodiesel fuel is
permitted.
9. All fuel tanks, lines, pumps, valves, etc. must be located
outside of the driver compartment and
within the confines
of the frame and/or steel body. Fuel pressure
gauge
isolaters, with steel-braided line, may
be mounted on the
firewall.
10. Any sealed cooling system is permitted.
11. Exhaust must have either two 7/16" ida. bolts placed
through the pipe perpendicular to each
other, or a screen
of the exact pipe diameter placed in the
pipe(s) somewhere
after the turbocharger(s). Exhaust must
be directed away
from the fuel tank and driver and exit
straight up or down.
12. Vehicles must have adequate stopping power.
13. The hitch must be constructed of solid material that is
properly attached and braced. Bumpers
may be notched
or removed. 26" maximum hitch height.
The hitching point
will be measured to the center of
the clevis loop.
14. Any truck body style is premitted, but the body must
retain the full-bodied appearance.
Doors must be
functional.
15. The vehicle must be equipped with
one seat for the driver;
it must be securely
installed.
16. Each vehicle must be equipped with an OEM or
minimum .024 inch thick
steel firewall extending from
side to side of the
body and from the top of the engine
compartment's seal (hood,
cowl, deck) to the bottom of
the floor and/or belly
pan. All openings must be sealed,
excluding grommets.
17. Each vehicle must be equipped with an OEM or
minimum .024 inch
thick steel floor pan that extends the
full length and
width of the driver compartment.
18. Each vehicle must have at least 6 inch wide u-joint
shields around
the rear u-joint constructed of at least 1/4
inch steel or
3/8 inch aluminum that will safely contain
the u-joint and
the end of the rear shaft. All shields must
be securely mounted
to the vehicle. Any front shaft u-
joint that is
visible from the side of the vehicle must be
shielded in the
same manner.
19. Air or fuel shutoff's required-consisting of
(1)
cable/switch to
the rear of the truck to be operated by
the sled, and
also a cable/switch inside the driver's
compartment.
20. D.O.T. street leagal tires only. Cut or
pulling tires
prohibited.
21. Solid or blocked suspensions are allowed.
22. Aftermarket transmissions and transfer
cases are
allowed.
23. A clutch meeting SFI spec 1.2 or 1.3
is mandatory for
manual transmissions.
24. A fire extinguisher in working condition
is required to be
within easy
reach of the driver.
25. General rules apply.
Super Modified Diesel
1. Weight limit is 8000 lbs.
2. Any diesel engine is allowed.
Unlimited turbos or
superchargers.
3. Nitrous Oxide is NOT allowed.
Propane, water, and
alcohol
injection is allowed.
4. Mechanical or Electronic
fuel injection permitted.
5. Front disc brakes are mandatory.
6. Aftermarket transmissions
and transfer cases are
allowed.
All automatic transmissions MUST be covered
by
a SFI 4.1 approved or better, full length safety
blanket.
7. Exhaust must have either
two 7/16" dia. bolts placed
through
the pipe perpendicular to each other, or a
screen
of the exact pipe diameter placed in the pipe(s)
somewhere
after the turbocharger(s). Exhaust(s) must
exit
either straight up or straight down.
8. Wheelbase shall not exceed
154".
9. 26" maximum
hitch height.
10. The hitch must be rigid in all
directions and solidly
mounted
to the frame.
11. Only pulling tires will
be allowed. Maximum 34" tall
and
18" wide.
12. Hanging weights are allowed
but cannot extend more
than 60 inches from centerline of front axle. No loose
weights in cab or under hood will be allowed.
13. All trucks will have a
360 degrees metal shield around
the universal joints, 5/16" steel or 3/8" aluminum.
Minimum
width to be 6 inches. Clearance should not
exceed 2 inches between shield and universal joint.
Shield should not be butt or seam welded.
14. All trucks must have
three (3) round metal loops
shielding on each drive shaft. (A two piece drive shaft
must
have six(6) metal loops.) A 360 degree loop
must
be of 3/8" wide or wider, and not more that 2
inches
from the shaft in any direction. End loops must
be placed no farther than 6 inches from universal
joints, with a third loop in the center of the shaft, or it
can
be a solid tube ( 5/16" steel or 3/8" aluminum)
meeting
the above requirements. No cast metal is
permissible.
15. From the point of hook to the
centerline of the rear
axle
shall be no less than 36% of the pickup or van
wheelbase.
16. Axles and hub bolt shields
are required on all rear ends
unless
it is a planetary drive rear end. Minimum is 1/16
(0.060) thick steel. The hub bolts should be shielded
on both front and rear axles. The mounting shield
cannot be mounted to the axle end or the hub bolts. A
hole may be installed in the center of the front shield
so
the lock can be operated, so long as the hub end or
axle
bolts are covered.
17. Vertical bumpers are required
to prevent the vehicle
from passing
over the buckboard of the sled while
backing
up to hook and unhook. Bumpers to extend a
minimum
of 8 inches vertically. Bumpers must be of a
rigid construction.
18. A neutral safety switch light system is
required on all
pulling vehicles.
A white light, automotive quality,
minimum 2 inches
in diameter, must be mounted directly
above or below
safety kill switch at the rear of the
vehicle. A light
in the driver's compartment must be
operated off the
same system. Both lights are to be
activated by the
shift lever so the lights will be lit ONLY
when the vehicle is
in neutral.
19. Air or fuel Shutoff's required of (1) cable/switch
to the
rear of the truck
to be operated by the sled, and also a
cable/switch inside
the driver's compartment.
20. Solid suspensions are allowed.
21. All drivers must wear a minimum SFI 3.2 Spec approved
fire suit.
22. Seat belts and helmets, minimum Snell 75, are
required.
23. A fire extinguisher in working condition is required
to be
within easy reach
of the driver.
