SAFETY:
Helmets are required and must meet Snell Standards:
Snell SA95, SA2000 or SA2005 full coverage and
must be worn at all times. Helmet must accompany
vehicle at time of inspection. Flame retardant neck
braces are mandatory. Flame retardant gloves
and shoes are mandatory. Fire suits of a flame
retardant nature must be worn by all competitors.
Two-piece fire suits allowed. NO KART SUITS AND NO
FLAME RETARDANT COVERALLS.
Additional safety equipment is optional. Fire
extinguisher is required and must be mounted within
driver reach.
SEAT
& BELTS: Aluminum seat is mandatory.
Seat belts and shoulder harness must be at least (3)
three inches wide and no older than (3) three years
from manufacturer date.
WINDOW
NET: All cars must be equipped with approved
window net. Window net must be up at all times
while car is on track.
BODIES:
ALUMINUM BODIES ONLY (carbon fiber roofs are
acceptable). No dished out roofs. No wings attached
to roof or side post. No built in fiberglass air
dams. Must be stock appearing. No wings of any kind
allowed in cockpit. No rear wing under trunk. No side
fins of any kind the entire length of car. Interior
of car may be dropped. If a mud screen is used,
there must be at least three safety bars installed in
front of driver’s seat and the screen must be
securely attached. For scoring purposes, all
car numbers must be visible on car in a readable
contrasting color from body. Numbers will
appear on both doors and on the roof and be at least
(18) eighteen inches high and (4) four inches
wide. Car must also have legible numbers at
least (5) inches high on front and rear of car.
All cars must have secure pick-up loops.
SPOLIERS:
Maximum spoiler width is seventy-two (72) inches;
maximum height of spoiler is eight (8) inches.
ENGINES:
"Wet Sump Systems Only," NO dry-sump oiling
systems. Oil pump must be in stock location. No
external oil pumps allowed. ALL blocks must be
steel blocks. ALL heads must be steel heads, NO
Aluminum Heads Allowed. ALL heads must be stock
valve angle (23 degree for Chevrolet), (20 degree for
Ford), (18 degree for Dodge). One (1) degree
valve angle tolerance (for gauge accuracy
only). Angle milling is not allowed. Any
car checking over the tolerance will be
disqualified. Any car found with this rule
infraction must go thru a pre-tech Inspection before
racing another event. Roller cams
allowed. CRATE motors Allowed (Only 602 and 604
CRATE motors). You may run one 2-barrel or one
4-barrel carburetor. ALL cars must run
track-approved muffler if track calls for one.
No ZOOMIES.
Engine setback rule is six (6) inches from center of
upper ball joint to #1 spark plug. Because a
chassis builder states it is a 6” setback does
not make it so. Engine must be shimmed forward
as required to meet this spec. This will be strictly
enforced.
CHASSIS
SUSPENSION: Shocks may be steel or aluminum
“NO CANISTER SHOCKS ALLOWED.” Maximum
of one shock per wheel only is allowed with the
exception of one “dummy” shock allowed on
the left rear only. Cars must have a fabricated
front stub. No full-frame chassis. Rack and Pinion
steering is allowed. Coilovers are allowed.
Fifth arm or torque link allowed. Rear
suspension is optional per car. Roll cage minimum
diameter is one and a half (1 ½) inches outside
dimension (OD). Steel tubing must not be less
than .083 thick. Car must have minimum of three (3)
bars (ULMA recommends at least 4) of the same
material mounted horizontally at the driver’s
door. All welds must be complete circumferences
of tubing. Square tubing is NOT allowed in driver
compartment (cockpit) area.
WEIGHT:
Car and driver must weigh 2,450 lbs after completion
of race. NO weight break given to CRATE motor
cars. NO tolerance.
WHEELBASE:
Minimum of 103 inches, measured from the center of
front hub to the center of rear hub.
WHEELS:
Wheels may be steel or aluminum. Maximum wheel
width is fourteen (14) inches. Beadlocks are
allowed. Wheel disc (Mud Plugs) are
allowed. Foam wheel plugs are allowed.
TIRES:
Hoosier D-55 tire compound. Grooving and siping
of tires is allowed. No softening agents may be
added to tires at any time.
DRIVESHAFT:
All drive shafts must be steel and must be painted
white and have car number painted or affixed on
them. All cars must be equipped with a
360-degree drive shaft loop installed at the front of
the shaft in case of breakage. If using a Bert
Ball Spline Transmission, an additional drive shaft
loop at rear of drive shaft or an installed
deflection bar at rear of cockpit is highly
recommended, but optional.
BATTERIES:
Heavy-duty and dry-cell batteries may be used.
Batteries are NOT authorized in the driver
compartment area.
FUEL:
Gasoline or Alcohol may be used. No exotic
additives such as nitro and naphtha-type products are
allowed. No oxygen-bearing additives are
allowed.
FUEL
TANKS: Fuel cells are mandatory. Maximum
32-gallon fuel cell may be used. Fuel cell must
be encased in steel can. All fuel cells must be
secured by at least two (2) straps. The straps
will be a minimum of (2) two inches wide and (1/8)
one-eighth inch thick. Fuel cell flapper valve
(rollover valve) is mandatory. Fuel vent
check-ball valve is mandatory.
TRANSMISSION:
Bert and Brinn and Falcon-type transmissions are
legal. Transmission must have at least 2
forward and 1 reverse working gears. Explosion-proof
bellhousing required if running external
clutch. Safety blanket or approved shield is
mandatory for automatics.
Car must be able to move forward and backwards on its
own from a complete stop when ordered to do so.
REAR
END: Floater or quick change rear ends are
legal. No type of lockers and Bias-sensing devices
allowed.
IGNITION:
HEI ignition and MSD ignition boxes are allowed. Only
one (1) electronic firing module is permitted. Only
one (1) ignition coil is permitted. Magnetos are not
allowed. Crank-censored ignitions are not
allowed.
TRACTION
CONTROL: No type of Traction Control device
allowed. NO tolerance.
This includes any type of electronic or mechanical
devices. Any electronic or mechanical device
that senses wheel spin or RPM spike will be
considered traction control. Any driver found
with traction control will be banned from ULMA.
GENERAL:
No radio communication or sound equipment allowed
unless track authorized.
All
participating drivers agree to abide by the ULMA
rules set forth and acknowledge
That their car will be subject to inspection any time
by a ULMA Official and or Track Official.
