1. GENERAL RULES AND PROCEDURES
 
1.1. The rules and/or regulations set forth herein do not express or imply
 
warranty of safety from publication of or compliance with these rules and/or
 
regulations; they are intended as a guide for the conduct of the sport and
 
are in no way a guarantee against injury.
 
1.2. UMP DIRTcar may at anytime make amendments to the rules set forth.
 
Rule amendments will be posted online via the UMP DIRTcar web site and noted
 
in the official UMP DIRTcar newsletter.
 
1.3. UMP DIRTcar rules shall apply at all UMP DIRTcar sanctioned events.
 
Tracks that neglect to enforce UMP DIRTcar rules may lose their UMP DIRTcar
 
sanctioning and participation in State and National point's competitions.
 
1.4. EIRI (except in rare instances) Decisions of UMP DIRTcar Officials are
 
final and binding without exception. In some cases, track safety rules may
 
take precedence over UMP DIRTcar published rules. Any discrepancy between
 
UMP DIRTCar and track rules should be brought to the attention of UMP
 
DIRTcar.
 
1.5. UMP DIRTcar officials shall have full authority over UMP DIRTcar
 
sanctioned events. At the discretion of UMP DIRTcar officials, any
 
competitor may be penalized for rule violations, hazardous actions or
 
assaults/threats against any official.
 
1.6. No car will qualify without inspector approval. All UMP DIRTcar race
 
cars are subject to inspection by UMP DIRTcar officials at any time.
 
1.7. The uses of pit boards or colored flashlights are prohibited.
 
1.8. All UMP DIRTcar racetracks will phone, e-mail or fax results to UMP
 
DIRTcar headquarters before noon each Monday.
 
Fax# (812) 426-1211 E-mail: sdillman@dirtcar.com This e-mail address is
 
being protected from spam bots, you need JavaScript enabled to view it
 
 
 

2. SERIES DECALS AND PATCHES
 
2.1. All participants shall display required decals as provided on decal
 
verification sheet to be allowed to compete.
 
2.2. Series Decal on both side of the car is mandatory, Drivers series patch
 
mandatory to receive point fund distribution.
 
2.3. To receive any contingency sponsorship awards, team must meet the
 
requirements of the award such as; decals, patches, product use, product
 
verification
 
 
 

3. SAFETY
 
3.1. Seat Belts
 
3.1.1. The use of at least an SFI approved five point seat belt system
 
including a crotch belt is required. The system is to be mounted to the
 
specifications and instructions of the seat belt manufacturer.. The date on
 
the belt must not exceed 4 years.
 
3.1.2. Seat belt webbing that comes into contact with any sharp or
 
unradiused metal edge must be protected from that edge. Belts must pass
 
through seat according to the specifications of the seat and belt
 
manufacturer..
 
3.1.3. As racing seat belts are subjected to severe conditions, it is
 
encouraged that worn or frayed belts are replaced immediately and undamaged
 
belts are replaced every 24 months or the belt manufacturer's
 
recommendations. The date sewn into the webbing should be used as a guide.
 
3.2. Halon fire extinguisher system is highly recommended.
 
3.3. The firewall at front of cockpit should be constructed of metal to
 
minimize airflow from the engine compartment into the cockpit and contain no
 
holes or gaps.
 
3.4. Driver's seat must be of a proper racing seat design, installed on the
 
left side of the car, and securely attached to the frame as per manufacturer's
 
specifications.
 
3.5. All drivers must wear a clean one or two piece approved driver's suit,
 
quilted or with underwear, head socks, gloves, foot socks and shoes to SFI
 
specifications.
 
3.6. An undamaged Snell SA2000 0r SA2005 or newer spec full face helmet is
 
mandatory for all events including track packing. SA95 is not acceptable
 
effective March 1st 2008.
 
3.7. All crews must carry an operable fire extinguisher of 20 pounds marked
 
with the car number in 2 inch numbers/letters in the rear of their
 
transporter, capable of extinguishing gas and oil fires.
 
3.8. Numerous driver restraint and personal protection devices such as
 
window nets, neck collars, Hans devices, arm restraints head and neck
 
restraints or similar are available and highly recommended. It is the driver's
 
decision on his/her personal protection and selection of use.
 
3.9. Solid steering wheel for protection of wrist is recommended
 
 
 

4. ROLL CAGE
 
4.1. All cars must have a suitable steel cage in driver's compartment
 
including headrest. Roll cage must be welded to the frame and extend above
 
the driver's helmet.
 
4.2. Driver door bars must be as close to parallel to the ground as possible
 
and located perpendicular to the driver for maximum driver protection and
 
easy accessibility. The side bars must be welded to the front and rear of
 
the roll cage members. No brazing or soldering is permitted. Door bars
 
that have a thickness of .095" (ninety-five one-thousandths of an inch) or
 
less must have at least 1 1/2" (one and a half inch) diameter. Minimum of
 
(3) Three door bars on divers side.
 
4.3. Protection of feet is mandatory. A bar across the back of the engine
 
with vertical bars and rub rails or similar protection is sufficient.
 
4.4. Side roll bars are mandatory and must extend into the door panels.
 
4.5. Roll cage must consist of continuous hoops that are no less than 1 1/2"
 
(one and a half inches) outside diameter and must have a wall thickness of
 
at least .095" (ninety-five one-thousandths of an inch).
 
4.6. Roll cage must be frame-mounted in a minimum of 6 (six) places.
 
4.7. Roll cage must consist of a configuration of front and rear hoops
 
connected by tubing on the sides or side hoops. Driver's head must not
 
protrude above cage with helmet on. Roll cage must be securely supported
 
and braced
 
 
 

5. FRAMES
 
5.1. Factory production full 1950 or newer parallel American passenger car
 
frames only. Frames must be complete in front of firewall. No cutting of
 
frame in any way in front of firewall!
 
5.2. Front cross member may be notched for radiator clearance only. Cross
 
members must be plated to retain complete box configuration..
 
5.3. Jeep, Bronco, 4-wheel drive, front wheel drive or sports car frames are
 
not allowed. .
 
5.4. Minimum wheelbase is 108" (one hundred and eight inches). Maximum
 
wheelbase is 112" (one hundred and twelve inches).
 
5.5. Rear of frame may be altered to accept leaf or coil springs. Any coil
 
spring must be at least 4 1/2" (four and one-half inches) outside diameter.
 
(Any spring)
 
5.6. Fiberglass lift bars are not permitted. Rear torsion bars are not
 
permitted.
 
5.7. Frames may not be widened or narrowed and must be able to support roll
 
cage on both sides and must be full and complete on both sides. Minimum
 
frame and body height from ground is 4" (four inches). Front bumper must be
 
mounted to the ends of the frame with the bottom loop parallel to the
 
ground. Minimum of 1" pipe is required to support the car when being towed.
 
Rear bumpers must be constructed of pipe or flat stock and must protect the
 
fuel cell. Center of bumpers (front and rear) must have 25 inches of ground
 
clearance with a 2" (two inches) tolerance. Rear bumper, Nerf bars must not
 
extend beyond width of rear tires and must not contain any sharp edges.
 
5.8. Brace bars forward of the cage may not be higher than stock hood
 
height.
 
5.9. Rear push-bars may not extend beyond 6" (six inches) of rear quarter
 
panel.
 
5.10. All side bars and bumpers must be capped on ends.
 
 
 

6. BODIES (see drawing diagram for reference)
 
6.1. Bodies must follow dimension and appearance as shown on diagram. Body
 
shall be the fabricated modified body from approved vendors.
 
6.2. Front windshield and rear window support must be stock appearing.
 
Front window support may have clear Lexan support of no more than 16"
 
(sixteen inches) including the roof post at the bottom and going straight to
 
top.
 
6.3. Front roof post must be in a straight line from top to bottom.
 
6.4. Engine compartment will remain open. Side panels are not permitted.
 
Hood sides may have a maximum 5" (five inch) drop and must be enclosed at
 
rear of hood. Firewall on driver's side must meet front of door.
 
6.5. Side fins or lips of any kind are not permitted along the entire length
 
of car or any panel (hood, front, nose, and roof).
 
6.6. Bodies should extend no further forward than the back of the block.
 
6.7. A maximum of one (1) stone deflector, for rear mounted oil pumps, oil
 
filters, and for the main oil tank will be permitted. The deflector may be
 
made of steel, aluminum, or heavy gauge wire. The cover may only be mounted
 
near the unit it is designed to protect with a maximum size of eighteen
 
inches square (18" x18") and mounted only from the upper right frame rail to
 
the lower right frame rail.
 
6.8. Minimum height to top of roof is 42" (forty-two inches) with a maximum
 
height not exceeding 52" (fifty-two inches).
 
6.9. Minimum height to top of deck is 28" (twenty-eight inches) with a
 
maximum height not exceeding 38" (thirty-eight inches).
 
6.10. All cars must have a car number on both sides and the roof that are at
 
least 18" (eighteen inches).
 
6.11. Drivers last name in minimum 8 inch letters should be displayed under
 
the cars number
 
6.12. There must be a minimum of 2" (two inches) of tire clearance from the
 
body.
 
6.13. 4" (Four inches) of ground clearance.
 
6.14. Measurement from center of hub to rear top of deck; Maximum: 48 inches
 
/ Minimum: 34 inches
 
6.15. Maximum body width is 68 inches at any (widest) point. Minimum 53
 
inches.
 
6.16. Bottom of doors may be 68 inches wide Maximum
 
6.17. Rear of door may flare out 6 inches for tire clearance left side only.
 
6.18. Bottom of flare must be curved not pointed
 
6.19. Maximum rear width of car must be 67 inches at the widest point.
 
6.20. Roof width: Maximum - 50 inches / Minimum - 44 inches.
 
6.21. Roof length: Maximum - 56 inches / Minimum - 41 inches.
 
6.22. Maximum height on rear roof post vertical is 5 inches
 
6.23. Nose piece shall not be longer or wider than frame horns and shall not
 
attached any further back than the radiator.
 
6.24. Spoiler shall be a maximum of 5 inches tall total material. You may
 
run your spoiler at any angle you choose. 3 Spoiler supports may be used;
 
this includes your side spoilers. Spoiler supports and side spoilers shall
 
be 5 inches tall in the back and 2 inches tall in the front with a maximum
 
total length of 12 inches at the bottom.
 
6.25. Spoiler may be lexan or aluminum. You may use the roof post / spoiler
 
kit. This kit has the roof post and spoiler all made into one piece provided
 
the spoiler does not exceed 5 inches tall.
 
 
 

7. INTERIOR AND DRIVER COMPARTMENT
 
7.1. All windows must have a minimum 11" (eleven inches) vertical opening.
 
The entire interior must have 11" (eleven inches) of clearance from interior
 
deck to roof and all sections of roll cage.
 
7.2. A kill switch is required within easy reach of the driver. It must be
 
clearly labeled "ON" and "OFF".
 
7.3. Adjustable shocks are not allowed
 
7.4. Hydraulic or pneumatic weight jacks, trackers, or similar adjustable
 
components of any kind are NOT allowed inside cockpit of car. Items must be
 
removed from the car.
 
7.5. Mirrors are NOT permitted.
 
7.6. Rock guard should end at steering wheel.
 
7.7. Drivers compartment must be sealed from engine and race track.
 
Including rear of bubble hood.
 
7.8. Maximum slope of the interior sheet metal "shelf" is 4" front to rear
 
and flat side to side. 50% of the 4"slope must be used in the half of
 
interior forward of the driver.
 
7.9. Top of the interior must be flush with the top of door and quarter
 
panels.
 
 
 

8. ROOF & ROOF SUPPORTS (see drawing diagram for reference)
 
8.1. All roofs must be full size. No half-moon roofs. Roof cannot be more
 
than 12" (twelve inches) past the rear axle.
 
8.2. Wings, roof spoilers or ground effects of any kind are NOT allowed.
 
8.3. All flat type roofs will be allowed a maximum 1 inch difference between
 
the front of the roof and the rear of the roof.
 
8.4. All curved type roofs will be allowed a maximum of 5 inches in the
 
front and 2 inches in the rear. The break in the roof must be within 6
 
inches from the center of the roof.
 
8.5. Wedge roofs are not allowed.
 
8.6. Dished roofs are not allowed. Roofs must be rounded side to side.
 
Bead rolls acceptable.
 
8.7. Rear roof supports may not extend past the front side of rear upright
 
of the roll cage.
 
8.8. Side vents on front roof posts may extend rear ward from the lowest
 
point, a maximum of 16" (sixteen inches), then at a 90 degree angle to roof
 
for 1 configuration, side vents must meet outside of car.
 
8.9. Any sun shield must be on hinge for easy exiting, no taping allowed
 
that brings window opening to less than 12" (twelve inches).
 
8.10. All race cars must meet the measurements illustrated in the UMP
 
DIRTcar drawing.
 
8.11. Only 5 (five) roof supports to choose from - no exceptions!
 
6.10. Roof should be single thickness of material. Roll bar hoops must be
 
exposed for inspection.
 
8.12. Flat type roofs will be measured from the front edge of the roof down
 
to the interior and measured from the rear edge down to the interior,
 
assuming a flat interior.. A 1 inch difference between the two measurements
 
is acceptable. . If the Interior has been changed, the measurement be from
 
the front edge of the roof to the ground, and the rear edge of the roof to
 
the ground. A one inch difference between the two measurements is
 
acceptable..
 
8.13. If the roof is curved then a level will be placed on the top of the
 
car and if the roof is 5 inches or less in the front and 2 inches or less in
 
the rear and the break is in the middle, then the roof is acceptable..
 
8.14. Roofs on these cars will be stock appearing. If a UMP DIRTcar tech man
 
determines your roof is to far out there, you will have to make some
 
corrections before you will be allowed tom run that night.
 
 
 

9. WEIGHT
 
9.1. All added weight(s) must be painted white or a bright color with the
 
car's number clearly painted on each piece.
 
9.2. All added weights must be securely mounted to car with minimum of 2
 
(two) 1/2" (one-half inch) bolts through each weight. No weights may be
 
mounted on rear bumper or outside the body of the car. All added weight
 
must be mounted below all windows and interior sheet metal. Any size
 
weight.
 
9.3. Any car that loses lead weight during an event may be fined up to
 
$500.00.
 
9.4. Minimum weight of car with driver at all times including after the
 
race is 2,400 (two-thousand four-hundred) pounds.
 
9.5. All weight determinations will be measured on the scales selected and
 
by UMP DIRTcar for each racing event. Zero tolerance is strictly enforced.
 
 
 

10. ELECTRONIC DEVICES & TRACTION CONTROL     No MSD Devices at all
 
10.1. All electronic or computerized wheel spin or acceleration retardation
 
traction control devices are strictly prohibited. Controlled timing devices
 
attached to or controlling accelerator or rotation of wheel are strictly
 
prohibited..
 
10.2. All traction control devices utilizing wheel sensors or any means of
 
measuring ground speed to control wheel spin are strictly prohibited.
 
10.3. Adjustable ping control devices, dial a chip controls, timing controls
 
or automated throttle controls are not permitted in cockpit or driver
 
accessible areas.
 
10.4. Adjustable restrictor plates are prohibited.
 
10.5. Any remotely controlled components inside or outside the cockpit of
 
any competitor's racecar are not permitted.
 
10.6. Any competitor found with any of the aforementioned devices will be
 
fined and lose all accumulated points as a minimum penalty.
 
10.7. Radios or devices for transmitting voice or data are prohibited,
 
either in the racecar or on anyone connected with the car.
 
 
 

11. FUEL SYSTEMS
 
Pump Gas or Racing Fuel Only
 

11.1. All cars must have fuel cells - 32 (thirty-two) gallons maximum
 
capacity. Fuel cell must be completely enclosed in 18-gauge metal
 
container. No aluminum allowed. All fuel cells must be completely visible.
 
All cells must have a minimum of 2 (two) 2" (two inch) x 1/8" (one-eighth of
 
an inch) steel straps surrounding them. Fuel cells must be protected in
 
rear of axle by securely-mounted roll cage tubing. Any driver having a fuel
 
cell with a capacity greater than 32 (thirty-two) gallons, will lose all
 
winnings and points for that event and fined $1,000.00. Any driver must be
 
prepared to drain fuel upon request for measurement.
 
11.2. One 2 (two) or 4 (four) barrel carburetor is allowed. Must be
 
naturally aspirated. And no Bigger Than 750 CFM 1 11/16 Base Plate Rule. 

1 inch spacer allowed.

11.3. Fuel injection systems or electric fuel pumps are prohibited.
 
11.4. No part of fuel cell may extend lower than protective tubing.
 
11.5. Racing gasoline or Pump Fuel Only
 
11.6. Nitrous oxide, nitrous methane, propylene oxide or any type of
 
additives are strictly prohibited.
 
11.7. Fuel may be checked at any time.
 
11.8. All fuel cells must have check valve in breather and filler check
 
valve..
 
 
 

12. ENGINES
 
12.1. GM 602 Crate Engine ONLY with Factory Dist. The 602 engine MUST be used as long as the rear of the engine
 
bell housing flange is mounted at least 72" (seventy-two inches) forward
 
from the center of the rear axle. Engine offset must be kept within 2" (two
 
inches) of center line from cross member. Engine height minimum is 11"
 
(eleven inches) from ground to front center of crankshaft.
 
12.2. All engines must be able to be used in a conventional passenger car
 
without alteration. Motor mounts cannot be removed or altered. Castings
 
and fittings may not be altered. Machine work on the outside of the engine
 
or machine work on the front or rear of the crankshaft is prohibited.You Must Run the Factory Valve Covers
 
12.3. Aluminum blocks are not permitted.
 
12.4. Magnetos are not permitted.
 
12.5. . Wet systems must be operative and will go with a claim by UMP
 
DIRTcar officials. Total dry sump systems are not allowed
 
12.6. Cooling systems may be altered or modified if stock-appearing hood
 
line is maintained.
 
12.7. Batteries must be securely mounted and shielded. Batteries may not be
 
mounted inside driver's cockpit.
 
12.8. Exhaust systems must be mounted in such a way as to direct spent gases
 
away from areas of possible fuel spillage. All headers must be pointed away
 
from ground, horizontal and preferably outside of car. No more than 1/2"
 
(one-half inch) clearance surrounding header pipe when directed through
 
firewall on driver's side. Mufflers may be required at certain tracks.
 

14. DRIVETRAIN & SUSPENSION
 
14.1. All drive shafts must be painted silver or white.
 
14.2. Aluminum, fiberglass, or carbon fiber drive shafts are not permitted.
 
14.3. A 1/2" (one-half inch) x 2" (two inches) 18-gauge steel drive shaft
 
loop is mandatory. Loop must be at least 6" (six inches) behind U-joint.
 
Two loops are recommended.
 
14.4. Drivers are encouraged to perform systematic checks on their
 
drivetrain to help reduce maintenance-related driveshaft problems.
 
14.5. Direct drives are not allowed.
 
14.6. Transmission must be bolted to engine. All cars must have forward and
 
reverse gears and be able to shift to forward or reverse with engine
 
running. BERT-type transmissions are allowed.
 
14.7. Clutch type transmissions must be equipped with explosion-proof steel
 
bell housing. If no explosion-proof bell housing is available for your
 
engine, or if you prefer, you may construct a shield of at least 1/2"
 
(one-half inch) x 6" (six inches) steel covering the clutch area 360 degrees
 
and be securely fastened.
 
14.8. Steering box must be O.E.M. Rack and pinion style steering is not
 
allowed. Must use original bolt pattern that matches frame type. In
 
cockpit, steering may be modified to suit the driver but must remain on the
 
left side. Center steering is not permitted.
 
14.9. "live axle" rear ends prohibited.
 
14.10. Quick change rear ends are approved, but not mandatory. Steel tubes
 
only.
 
14.11. Aluminum birdcages are not permitted.
 
14.12. Independent rear suspensions are not approved.
 
14.13. Floater hub assembly only.
 
14.14. Front suspension must be O.E.M. and be in stock location. Must be
 
replaceable by stock part from same type of suspension.
 
14.15. Aluminum spools are permitted.
 
14.16. Steel coil-over eliminators or steel/aluminum coil-over kits
 
allowed-must conform to shock and spring rules. (Rear only) (5 inch spring)
 
14.17. All springs must be tethered or cabled.
 
14.18. Aluminum shocks, shells, aluminum hubs, aluminum A-frames, aluminum
 
rear-end, aluminum tubes or other aluminum suspension parts are not
 
permitted
 
14.19. Steel body, one piece non adjustable shocks only
 
14.20. Coils over shocks are not permitted on front of car including
 
homemade coil-overs - no exceptions.
 
14.21. One shock per wheel only. No lay down shocks less than 12" (twelve
 
inches) away from brake rotor. Additional shocks in other locations are
 
permissible.
 
14.22. Any shock may be claimed for $120.00.
 
14.23. Stock passenger car spindles only. No fabricated spindles are
 
permitted.
 
14.24. Lower A-frames cannot be altered or moved. Pre-approved
 
after-market lower control arms are legal but must remain in factory
 
location. All after-market lower control arms must have an official UMP
 
DIRTcar-approved and numbered sticker at all times.
 
14.25. Tube type upper A-frames are allowed and may be moved. Aluminum
 
cross shafts OK.
 
14.26. Composite leaf springs are permitted.
 
14.27. Aluminum shackles are permitted.
 
 
 

15. BRAKES
 
15.1. All cars must be equipped with a working braking system on all four
 
wheels and all four wheels must lock up at all times.
 
15.2. Steel rotors only. Carbon fiber or aluminum are prohibited.
 
Drilling, lightening or alteration to the brake rotors or calipers is
 
prohibited All calipers must be O.E.M.
 
15.3. Single disc brake rotors or scalloped rotors are not permitted. Must
 
be O.E.M.
 
 
 

16. TIRES & WHEELS
 
8x15 inch steel wheels only, (no wide five wheels) May run bead lock.
 
No sipping, or grooving of tires. May run any DOT P235-60, P255-60 or P275-60
series tires only (No Hoosiers, McCrearys or any other made for racing tires).
 
16.6. Tire softeners or chemicals designed to change the characteristics of
 
the tire chemistry or surface are strictly prohibited. Such chemicals or
 
processes may result in an EPA investigation and force the closure of that
 
racetrack.
 
16.7. Mud plugs are allowed on all four wheels. Bead locks are allowed on
 
right side only.
 
16.8. Mud plug must have car number on it.
 
16.9. Only 8-inch racing wheels are allowed.
 
16.10. Wheels must be conventional one-piece steel and must be mounted with
 
lug nuts. Aluminum, plastic or carbon fiber wheels are NOT permitted. Must
 
have five lugs.
 
16.11. Maximum overall width (front or rear) shall not exceed 78"
 
(seventy-eight inches) from the outside of tread to outside of tread.
 
Maximum 1" (one inch) spacer between hub and wheel is allowed. Steel or
 
aluminum spacer is allowed on the front of the car only so long as overall
 
width does not exceed 78" (seventy-eight inches).
 
 
 

17. BEHAVIOR
 
17.1. Derogatory or distasteful statements on any racecar or hauler are not
 
permitted at any UMP DIRTcar racetrack. UMP DIRTcar officials have
 
discretion and the final decision on all lettering on all racecars and
 
haulers. Failure to remove offensive lettering will mean disqualification
 
from all UMP DIRTcar events and a fine of up to $500.00.
 
 
 

17.2. No driver or pit crew member shall subject any UMP DIRTcar promoter or
 
official to threats, abusive or improper language at any time. The driver
 
is responsible for all crew members or those associated with the car. Any
 
driver or pit crew member who assaults or threatens any UMP DIRTcar promoter
 
or official may be fined up to $1,000.00 and suspended indefinitely from all
 
UMP DIRTcar events until fine is paid. Reinstatement and fines are at the
 
discretion of UMP DIRTcar management and non-contestable.