Super Late Model Rules

CLICK HERE For Printable Copy

2019 Super Late Models Specifications & Guidelines
Eligible Cars and Body
◼ All competing cars will be full-sized, stock American manufactured passenger car bodies. 2019 A-B-C
body rules apply unless otherwise specified. No panels allowed extending top edge of doors. No under
car panning outside of frame rails and no further than drivers’ tub front or rear at the bottom of the
frame. Maximum drivers tub length is 52 ½ and the maximum width of frame is 53 ½. Any holes in
body not being used must be covered and remain so during the race. The 5 Star 2019 Gen 6 Super
Late Model Body will be allowed. Bottom lip of nose must remain in tack as manufactured.
◼ A-Pillar vent windows may only have ½ inch of straight line deflection. The surface must be smooth
and must not have bead rolls or breaks. Front nose valance may only be a single layer and be a
maximum of 3/16” thick and may be a maximum of 3.
◼ Rub rail are discouraged and may only be used if they are polycarbonate.
◼ If exhaust exits through the door, installation must include an exhaust flange that is mounted flush to
the door. Maximum ½” gap around the exhaust pipe. Pipe must not protrude through door.
◼ At all times the ABC “A” measurement must maintain a minimum length of 11.5”. The minimum length
allowed for the nose, measured from the bottom, leading edge at center, up to the hood seams is 20”.
◼ The air box between the nose and radiator may have no pieces wider than the radiator. Nothing may be
used to restrict the flow of air in the ductwork between the nose and radiator. The standard opening for
the grill screen area, as approved for manufacturers production, must be maintained at all times. Only
ABC manufactures standard mesh screen may be used for the radiator opening in the nose.
◼ No types of under-body air deflectors are allowed. All air for blowers or coolers in the engine
compartment must be pulled from the nose or the radiator air box. Air may not be blown or forced onto
the tire or bead, air may only be directed to the brake rotors. The duct work between the nose and the
radiator may be no wider than 29” and may not be carbon fiber.
◼ Tape may not be used anywhere on the car to control the flow of air or seal/secure seams between the
body panels (unless approved for repairs). The only exception is that tape may be used on the radiator
grill opening and brake ducts in the nose.
◼ Titanium is not allowed for use in any way on the race car.
◼ 66 inch maximum tread width for all cars
◼ Interiors must be steel or aluminum only. No composites.
◼ No Data Acquisition equipment/wiring is allowed in the car on officially recognized race or qualifying
◼ Scoring transponders must be placed on the inside of the left rear frame rail, 11 inches from the back of
the edge of the axle tube to the centerline of the transponder bracket.
◼ Weight: All cars must weigh 2800 pounds with 58% max left side weight at all times (without refueling).
Exceptions: When using spool in rear end may deduct 75 pounds. Sealed crate engines may deduct
50 pounds.
Basic Engine Guidelines
◼ Use of any engine under 347 Cubic Inches will require a 50lb penalty.
◼ Engines with rear mounted distributors will be located so the forward most spark plug is no more than
two inches (2”) from the center line of the upper ball joints. Engines with front mounted distributors: up
to four inches (4”) setback from centerline of upper ball joints. Crate Engines may use four inch (4”)
◼ Engines may not be offset more than one inch (1”) from centerline of car.
◼ Front center of crankshaft must have at least ten inches (10”) of ground clearance. Crate Engines must
be at least 11 inches.
◼ Standard steel blocks only. No Carbon Compacted blocks of any type.
◼ No Ford D3, SC, or other High Port heads. The following are the ONLY approved Ford heads: A, B, C,
C3, and C35. These heads must remain unaltered other than porting and polishing. No altering of these
heads will be allowed so as to change runner floor or roof height to raise port or ports, these heads will
be considered high ports and are not permitted. Runner floor and runner roof heights must remain as
manufactured from Ford.
◼ No Overhead Camshafts.
◼ A maximum 16 inch (O.D.) air element and housing must be used.
◼ Carburetor restriction must be done with a solid plate or cone type system only, and may NOT be
externally adjustable in any way. No adjustments may be made to the carb/restrictor package following
qualifying. Teams will race with the same package they qualify with.
◼ Any competitor that finishes in the top 5 may be required, at their expense, to remove the intake,
heads, and/or oil pan for inspection purposes.
◼ Externally lightened blocks will receive a 25-50lb total weight penalty.
◼ All oil pumps must be mounted in front of engine.
Southern Super Parts Engine (SSPE) (May be claimed for $21,000 & Pulling fee)
◼ Maximum Engine displacement is 362 cubic inches.
◼ Maximum compression ratio is 11.5:1 with +.5 tolerance.
◼ Any flat top piston permitted with 927 wrist pin and .043 x .043x 3mm ring package only. Pistons must
not extend out of the top of engine block. Maximum racer cost of $1400.00 per set.
◼ Cast Iron engine blocks only.
◼ Intake must remain stock. Absolutely no match porting or blasting of any kind permitted. Slotting of bolt
holes, water lines and matching of sides allowed. Ford part #: Edelbrock 2928, 2929, or 2934 only.
Chevy part#: Edelbrock 2814 or 2892 only.
◼ Crankshaft must have a minimum weight of 40 pounds (with front timing pulley or sprocket). Minimum
main size Chevy 2.300/ Ford 2.250. Maximum advertised racer cost of $1400.00
◼ Connecting rods: Minimum rod journal size 1.850”. Absolutely no piston-guided rods permitted.
Maximum racer cost of $1400.00 per set. No titanium rods permitted. Minimum rod weight 560 grams.
◼ Listed Brodix Cylinder Heads only. Heads may be surfaced to achieve proper compression ratio.
Absolutely no other work of any kind will be permitted to the intake ports, exhaust ports, or combustion
chambers. Ford part #: SP STS T-1 F Std 225- SSPE. Must retain minimum valve angle of 20°. Chevy
Part #:SP STS T-1 Std 227-SSPE. Must retain min. valve angle of 21°. Multi-angle valve job permitted.
Absolutely no blending of valve job below valve seat permitted. Chamber must retain shape 3/8” above
valve seat. Minimal blending due to multi-valve jobs permitted.
◼ Maximum valve size: Intake 2.08”, Exhaust 1.60”, Stem size 11/32”. Intake valve may be titanium or
stainless steel. Exhaust must be stainless steel.
◼ No Titanium valve springs permitted. Maximum racer cost: $425.00 per set. Titanium retainers
permitted. Lock angles not specified.
◼ Camshaft must be Comp Cam Part #: 211517
◼ Camshaft must be installed on 104° intake centerline +/- 1°. Roller lifters, maximum racer cost of
$700.00 per set. Maximum lift of .715” while using 1.6 rockers checked at valve with zero lash.
Maximum 1.6 rocker arm racer cost of $1,500.00 per set. Magnetic-type push rods only. No keyway
guided lifters permitted.
◼ Maximum 5 stage dry sump oil pump permitted. Max. racer cost of $1,250.00.
◼ Oil pan must have 1” inspection hole. Absolutely no sectional pans permitted. Open box pans only (NO
windage tray / scrapers etc.). Max. racer cost of $550.00.
◼ Ignition System may only be FAST Ignition part # 6000-6701. Mount on right side of car dials point out
the passenger side. The mag positive & negative shall be a maximum length of 62 inches. Must be
remain uncut or spliced and on top of dash in clear view. Mandatory 8000 RPM Rev Limiter must be
installed and fully functional. Absolutely no crank trigger pickups permitted.
◼ Carburetor must be an unaltered 750 CFM 4779, 80528 Holley permitted. Carburetor must pass
inspection at any time regardless of temperature. Maximum 1” carburetor spacer permitted on Ford
motor only. Maximum ½” carburetor spacer permitted on Chevrolet motor only. Teams are required to
bring a 1.350” carb restrictor that series officials may require to be used with this engine package.
Details may be found on each event’s entry form.
◼ No internally lightened blocks.
Other Engines
◼ S.E.A.L. approved McGunegill, Hamner and Progressive “Sealed Engines” may also be used. Any
tampering of seals or established construction of these engines is grounds for immediate
disqualification. Additional tech rules will apply. The maximum RPM is the series mandated 7600 for the
McGunegill, Hamner and Progressive. Rev limiting device must be operational at all times with RPM
Dials securely covered. All Sealed engines must use the gauge legal, 750 carb as described in the
SSPE section. No larger than 1.350” restrictor plate (governor) one inch thick required for all Hamner
Sealed Engines. No internally lightened blocks.
◼ The “ACE” Engine as commonly used in the ARCA Midwest Tour may also be used with a 750 carb as
described in SSPE engine section. Series officials may add or subtract weight to ensure fair
competition. 7800 RPM max
◼ Crate engines may also be used. Series officials may add or subtract weight to ensure fair competition.
Cars utilizing crate engines must use the engine, carb and ignition specifications that will be announced
by tour officials prior to the event.
◼ Any engine not listed must have prior approval by contacting PRA Tours Series Director.
Fuel Systems
◼ Sunoco 110 is the spec fuel of PRA Tours. A minimum gallon purchase required at each event. Fuel
samples may be taken at any time and tested. Alcohol, nitromethane, nitrous oxide, other oxygenating
agents, other additives and/or fuels that contain masking agents or oxygen are not permitted. Streetuse pump gas is not allowed. Use of such substances or additives will result in immediate
disqualification and loss of points.
◼ No electric fuel pumps or forced induction of any kind are permitted.
◼ No icing or cooling of fuel system.
◼ A fuel cell will be mandatory with a 22-gallon (U.S.) maximum. Fuel cell must have a minimum of eight
inches (8”) ground clearance. Fuel cell must be equipped with at least two (2) protective straps
completely around the cell. Fuel cell must be mounted securely behind the rear axle of the car. Cars
must have a minimum 1/8” steel plate, or similar strength aluminum plate, between fuel cell and rear
end. A similar plate at the rear of the fuel cell is recommended. All cars must have safety bar at the rear
of the fuel cell. At a minimum, all fuel cell configurations must include a rubber type cell in a steel
container. No “U” Shaped Fuel Cells or non-standard-shaped fuel cells.
◼ Battery powered ignition. Vehicle MUST start under own power.
◼ Maximum 16 Volt Battery. Car must be capable of being started with a 12-volt battery. No Magnetos.
◼ All wiring must be sealed. No unplugged wiring. All ignition boxes must be mounted on the passenger
side, in plain view, and out of reach of the driver and all wires to the distributor must be run separately
and not part of a bigger loom or wiring harness.
◼ Crane & MSD boxes allowed
◼ No fifth (5th) coil or lift bar suspensions will be permitted. No birdcage set-ups of any kind (3 or 4 link).
Trailing arms must mount to rear end in a solid fashion (heim allowed) and no part of the trailing arm
mounting may freely rotate around the rear end. All parts of the rear suspension must be solid, onepiece construction with no moving parts, with one heim at each end. All mounts for trailing arms, third
links and track bars must also be solid and may not have the ability to move.
◼ The wheelbase difference from left to right may not exceed ½ inch.
◼ No driver adjustments other than ONE adjuster for brakes.
◼ Coil Springs and Spindles must be Steel. (Exception: approved Coleman Spindle)
◼ No traction control devices, electronic or otherwise, will be permitted. Use of traction control will be
cause for immediate D.Q. and suspension from series.
◼ One shock per wheel. Shocks must be only mechanical in nature and no part of suspension or shocks
may utilize electricity.
Wheels and Tires
◼ Hoosier F-45 purchased from the PRA Tours series supplier only. Cars must start the feature on the
same tires on which they qualified.
◼ Steel 10” wheels only. Bleeders are not allowed.
◼ Use of tire softening or altering agents will not be permitted. Use of such substances may result in
immediate disqualification, loss of points and money.
Transmission, Driveshaft and Rear End
◼ Full standard type transmission only will be permitted. No quickchange transmissions will be permitted.
Automatic transmissions will not be permitted. Crate engine teams may use their transmission rules
with no weight penalty.
◼ A minimum of one reverse and two forward gears will be required.
◼ Multi-disc clutches will be permitted. No direct drives. Conventional clutch mounted to fly wheel only will
be permitted. Any transmission that does not meet these guidelines may be assessed a minimum 25
lbs penalty.
◼ No carbon fiber or nonstandard material clutches. The minimum clutch diameter is 5.5”. No “slipper” or
“centrifugal” clutches allowed.
◼ Driveshaft must be equipped with a minimum of two (2) safety straps and must be painted white. Drive
shafts must be made of Aluminum or Steel only, and use no other materials (i.e. carbon fiber, etc).
◼ Vehicle must be equipped with four-wheel hydraulic brakes. No carbon fiber rotors. Only steel rotors
are allowed (no titanium). Brake fluid circulators permitted. Liquid or gas cooling not permitted.
◼ Radio communication to the drivers is mandatory, with a minimum of one (1) spotter for each team.
Spotter must have the capability to monitor series race control with a scanner. Spotter must be in
designated area for feature event.
◼ Approved seat belts and double shoulder harness will be required, no older than five (5) years. A crotch
strap will be required.
◼ A capable form of head & neck restraint must be used. A straptype neck restraint is mandatory (No
Neck Collars).
◼ Helmet must be 2005 Snell standard or better and have sticker visible for inspection. Full-face helmets
required. Clean, full driving suit, approved gloves, and shoes for fire protection are mandatory. Side
plate for driver’s door will be mandatory. Must be 12 inches (12”) high post-to-post, 1/16” minimum
thickness steel or and must be fastened with a minimum of six (6) half-inch bolts or securely welded to
series’ approval.
◼ Driver’s window must be equipped with safety net with quick release-latch. String window nets will not
be permitted. The minimum net size must be 22” wide and 16” high. When latched, the window net
must fit and pull tight.
◼ Resilient padding designed for roll bar use must be installed on any roll cage member which can be
reached by any extremity of the driver while driver is normally seated with restraints fastened. Steering
wheel must be padded.
◼ All lead weights must be painted white, with the car number painted on each individual piece. All lead
weights must be securely fastened. No lead weights will be permitted in driver’s compartment. Any lost
weight will result in a $10 per pound fine. No Tungsten or similar weight allowed!
◼ All competing teams must possess a minimum 10 lb. Aluminum working fire extinguisher while in
attendance in pits.
◼ A main electrical cut-off switch needs to be clearly marked and easily accessible to safety crews.
◼ Numbers must be a minimum of 21” in height, with body of each character a minimum of 3” in width and
must be professionally placed on each door. A number will be required on top, readable from the infield.
A car number at least six inches (6”) in height must be placed in the upper right hand corner of the
◼ Roll cage must be constructed of 1 ¾” OD round steel tubing with a minimum wall thickness of .090”.
Three inches (3”) maximum gussets measured diagonally must be welded in main roll cage area where
a 90 degree angle exists or where the roll cage meets the main frame rails. The main frame rails / bolton clips must be steel from radiator area to behind the fuel cell. Main Frame rails must be a minimum of
2” x 3” rectangular steel. Bumper bars and right side door bars must be a minimum of .065 x 1 ¼ inch
◼ No part of any cooling system may be located in driver’s compartment
◼ Batteries must be securely fastened and mounted outside of driver’s compartment.
◼ A working Fire Suppression system or driver accessible fire extinguisher is required. All cars must have
a Quick Disconnect or vacuum style fuel shut off placed at the point the fuel exits the cell.
Note: Equipment or specifications not considered herein does not necessarily mean approval. Anything not
covered is at the discretion of PRA Tour Series Director and Officials. It is the driver/team responsibility to
maintain all safety rules. All drivers must purchase a PRA Tour registration available online at
For additional information contact the Series Director (Renee Hackett) 336-302-5803 or