LIMITED LATE MODEL 2010
Updates for ASALM in RED...................IMS in BLUE
All equipment changes or modifications not specifically addressed in this rulebook must be submitted for approval, unless otherwise authorized by Illiana Officials, for competition. Illiana Officials will notify the applicant of approval or rejection. RACE CARS, PARTS, AND/OR EQUIPMENT WILL NOT BE CONSIDERED APPROVED BY REASON OF HAVING PASSED THROUGH INSPECTION AT ANY TIME OR ANY NUMBER OF TIMES UNOBSERVED OR UNDETECTED. Any car, part and/or equipment, not conforming to specifications or tolerances, contained in the 2009 Limited Late Model Rulebook, or not otherwise approved by Illiana Officials, is not permitted competition use.
NO TITANIUM OR CARBON FIBER PARTS (EXCEPT FOR APPROVED AIR BOXES) ARE PERMITTED!
A Eligible Models
IMS subscribes to the Approved Body Configuration (ABC); spec. bodies manufactured exclusively by
Five Star Race Car Bodies (Five Star), Twin Lakes, WI, and Aluminum Racing Products Inc. (ARP Bodies),
Greenbrier, TN.
A.1 Approved Models
Chevrolet – Monte Carlo/Impala SS Pontiac – Grand Prix
Ford – Taurus/Fusion Dodge – Intrepid/Charger/Avenger
B General Specifications
Non-compliance with any rule(s) as stated in the Rulebook will deem the car ineligible for
competition until the infraction(s) is repaired. Offset or Perimeter chassis are approved for competition.
All height measurements are taken with the driver out of the car. All weight measurements are taken with driver in the car.
A. Minimum weight shall be twenty-seven hundred (2,700) pounds, (except box stock GM crate engines) minimum weight is measured with full fuel cell; all driver safety equipment installed or in place; radio and driver in the car
B. Maximum left-side percentage of weight shall fifty-nine percent (59%)
C. Wheelbase is a minimum of one-hundred-two (102”) inches, measured from centerline of the front spindles to the centerline of the rear spindles, on both sides.
D. Treadwidth is a maximum of sixty-five (65.0”) inches, with a tolerance of one (1”) inch, measured from the centerline of the front and rear tires
E. Ride height or frame to ground clearance is a minimum of four (4”) inches and a maximum of six inches (6”)
Pre or Post Race, both sides of the car. Ride height is measured with all four (4) tires inflated to ASA LMS mandated pressures. Teams are required to present their cars with tires inflated to recommended cold tire pressures and are permitted to adjust tire pressures, after technical inspection and prior to Qualifying; GM Performance Parts Shootout; or the Main Event to recommended cold tire pressures.
F. Hood pins will have (1) one hole for each pin.
B.1 Car Bodies
The only approved body for the LLMS is the 2009 Approved Body Configuration (ABC) as produced by Five Star Race Car Bodies (Five Star), Twin Lakes, WI, and/or Aluminum Racing Products Inc. (ARP Bodies), Greenbrier, TN. and in accordance with current ABC 2009 Rulebook. Refer to ABC 2009 Rulebook for all body specifications and tolerances. The ASA LMS has deviated from certain ABC specifications and dimensions. These areas are defined later in the rulebook. During inspection process, car must be presented in race ready condition, less-driver.
IMS) Non-ABC Bodies will be allowed to run with no penalty
B.1.a: LLMS mandates all spoilers to be six-one-half inches (6.5”) tall x sixty-inch (60”) wide x one quarter-inch (1/4”) thick polycarbonate.
B.1.b Car Bodies – Panning – Engine Skid Plate
Belly or flush panning (NO weight trays bigger than the lead) of the body is prohibited. Panning (must not have any vents/holes in the pan) of the nose area is permitted provided the panning does not extend rearward of the leading edge of the radiator. Air may not be exhausted from the underside of the car. A skid plate, 1/2” bigger than the bottom foot print of the oil pan is permitted.
B.1.c Car Bodies – Cockpit Air Intake
Air ducts to direct air into the cockpit area is permitted. No fixed or moveable air-directing devices are permitted under or inside the car. Air must be collected through a NACA Duct in the rear or “opera” window of the car. No flexible hoses or permanently installed air-ducting devices are permitted to be in the driver or passenger side window areas or attached to driver window net.
B.1.d Car Bodies – Vent Windows "A" and “B” pillar vent windows are MANDATED to be ABC Approved, no alteration permitted, except as follows … installation of a small NACA duct and hose in the right or left side vent window for cooling
purposes of the ignition system or driver. Installation of the NACA duct must be professional in appearance. No additional hoses or lines are permitted to be attached to left or right side vent windows.
C. Body and Appearance
IMS mandates the presentation of a stock-appearing, professionally finished racecar. A detailed, professional-quality paint job is mandatory. The car must be fully painted with legible numbers affixed, in a finished form with all required decals in place, when the car is presented to technical inspection.
A. Car base color and number color must be of high contrast to maximize legibility of number.
B. Front bumper cover area reflect the body style of the car in block type letters (i.e. Chevrolet Monte Carlo; Dodge Charger; Dodge Intrepid; Ford Fusion; Ford Taurus; Pontiac Grand Prix). Detail body decal packages available from ARP; Five Star or any ABC Body Approved Dealer.
C. Rear bumper cover license plate area reflect the appropriate manufacturer’s symbol (i.e. Chevrolet Bow Tie, Dodge Five Star, Ford Oval or Pontiac "Pontiac"). Detail body decal packages available from ARP; Five Star or any ABC Body Approved Dealer.
D. “B” pillar must reflect appropriate manufacturer name, written vertically (i.e. Chevy, Dodge, Ford or Pontiac). Detail body decal packages available from ARP; Five Star or any ABC Body Approved Dealer.
E. All cars starting an event must have a complete, painted body with full details, including headlight and taillight decals. Cars not adhering to this are subject to penalties and fines at the discretion of the ASA LMS.
F. Jack-point locations may be marked with a two-inch (2”) arrow or other identification mark
G. Wheel openings maybe no larger than seven (7”) measured from the edge of the rim to the outer edge of the wheel opening.
H. The use of any type reverse ducts (NACA or other) is prohibited. Air intake into the cockpit must be through NACA ducts mounted in the side “A or B” pillar vent windows or the rear opera or “C” pillar windows.
I. Exhausting of air through the cockpit from the engine compartment or under the car is prohibited. The bottom or floor of the air box may not have vents; flutes; or NACA ducts installed.
C.2 Dashboards
A full-width dashboard is required. The Series recommends all gauges, regardless of size, shape or type, be mounted neatly in the dashboard to retain the showroom appearance. No digital gauges are allowed.
C.3 Car Numbers and Driver Name
Illiana mandates all cars have an officially issued number.
IMS) Drivers last name to be on both rocker panels in a contrasting color at least 4" tall.
It is mandated the Series sponsor decal be centered in the window valance area, of the top of the front windshield.
A. Numbers must be a minimum twenty-one inches (21”) tall x three inches (3”) wide. Numbers must be centered top to bottom and left to right.
B. A minimum 35-inch high x 4-inch wide stroke roof number, facing the inside or driver side of the car is mandatory. Cars with smaller numbers or numbers facing the wrong direction will be pulled from competition until such time as size or orientation has been changed.
C. The team number cannot be changed or assigned to another racecar, except by specific directions from IMS Officials.
D. Teams are required to have a five-inch (5”) Team Car Number displayed on the passenger side window; upper right hand corner of the windshield on the team hauler.
E. Teams are required to have a five-inch (5”) Team Car Number displayed on the REAR upper right hand corner of the race car hauler, and on the front and rear panels of said teams pit box.
C.4 Sponsors Decals or Painted Signs
IMS reserves the right to approve or disapprove any sponsorship; advertising; message or similar agreement in connection with any sanctioned event. All competitors agree to accept IMS Officials decision in the event of such judgments.
A. Registered Rookie competitors must display a rookie strip on the left rear bumper cover.
D Templates
Maximum template tolerance is 0.375” inches (3/8”). All cars must conform to all ABC templates, comparison pieces, and/or other measuring devices as applied and measured by ASA LMS Officials within the ABC approved Body Configuration tolerance. IMS will use the ABC Official Referee for technical inspection purposes
E Engine Specifications and Requirements
All engines used for IMS LLM competition must be sealed by the manufacturer and/or a Certified Engine Rebuilder and must remain in the “as shipped” condition. The Series uses a double redundant sealing system which must be visible at all times. All engines, with or without this sealing process are subject to testing and or confiscation at any time during a sanctioned event. Competitor’s refusing confiscation, impounding and/or replacement, will be disqualified from the event, and all future events until engine issue has been resolved. Disqualification includes forfeiture of all monies, points and contingencies earned for that event. Teams may be subjected to additional fines, penalties and/or points loss, based on inspection of the engine. Teams fined or penalized for engine infractions are not eligible for competition until all fines and/or penalties have been fulfilled or paid.
a. Engine/Body combinations must be match manufacturers nameplate
b. Engine mounts must be reinforced steel or aluminum.
c. Aftermarket SFI Approved engine harmonic dampers are permitted. There can be no moving parts or viscous style damper permitted.
d. Use of or installation of an open or closed loop vacuum system, to evacuate air from the engine is prohibited.
E.1 Approved Engines
A. GM part number 88958604 *
B. Ford part number M-6007-D347R2
C. Ford part number M-6010-BOSS302
D. Dodge part number P5007958
E. McGunegill Ford part number ASA 425 LM
F. Stanton Dodge part number ASALMS75360
G. GM part number 19171821 LS-3
* G.M. part # 88958604 Factory Box Stock Engine with NO updates will be given a weight break of #50 lbs. Engine must have factory - installed Info-Glyph dot-matrix seals. NO re-man seals allowed. NO UPDATES are allowed
When factory seals are removed or engine is rebuilt it will no longer be eligible for this weight rule. GM 88958604 have the option of using a Champs Oil Pan # CP106LTRB (6 ½’ deep) with a pickup #10111SB or 106SB, 1.6 rockers arms, an upgraded valve spring and retainer kit available from Phil Harper Motorsports.
All Ford engines must run 1.5 rocker arms purchased from McGunegill Engine Performance.
E.2 Engine Location
Engine WILL be installed in a normal, upright position. Engine ground clearance shall be eleven-inch (11”) minimum measured from centerline of the crankshaft at the harmonic balancer to a level ground plane.
Engine set back of 3.5 inches (3 1/2”) will be measured from the center of the #1 spark plug to the center of the upper ball joint Engine set-back location tolerance is plus or minus .5-inches (1/2”).
E.3 Ignition System
Crane Cams Ignition unit, part# 6000-6463 ASA LMS, complete with mag trigger; tach output; digital locked out rev limiter set at 6,300 rpm (+/- 30 rpm); and Crane Cams Coil PS92N, part# 730-0192 will be used at all ASA LMS sanctioned events. The ASA LMS Crane Cams ignition will be installed before practice and removed from competitors’ car post event.
Crane Cams Optical Race Distributor is recommended. Team(s) leaving the event with the ASA LMS Crane Cams Ignition system will have their event earning withheld until such time as the Ignition system is returned to the ASA LMS Office. Ignition boxes must be mounted in the dashboard area using a Universal Mounting Plate, out of the drivers reach.
IMS) MSD box with removable chip may be used through the end of the season for 2009
E.3a Only ASALMS approved wiring harness allowed.
ASA LMS mandates the use a ASA LMS Spec wiring harness for ALL Divisions. This Spec Wiring Harness must be purchased from Nelson Specialties Inc. phone number 704-662-6600. When calling for this Spec Wiring Harness, please give car owners name, division, race car number, and telephone number.
NOTE: The Spec Wiring Harness must be installed as shipped, and in NO WAY MODIFIED. Please follow the supplied installations instructions to the letter.
E.3b Tachometer
Tachometers maybe used during practice only, and must be unplugged (and left unplugged for the rest of the event) before qualifying tech and during the racing event. Digital Tachometers of any type are prohibited.
E.4 Master Kill Switch
IMS mandates the use of a Rotary-type, master kill switch, labeled ON/OFF. The switch location is mandated to be mounted on the internal roll cage bars, directly to the right of the driver seat for accessibility from the left or right side windows. Switch must disconnect or “kill” all electrical power to the car from the battery. Switch must be wired in series with the Positive side of the battery cable.
E.5a Carburetor
Holley 650 CFM 4150 HP carburetor, part number 80541-1, “box-stock”, is mandated. Carburetor must be securely fastened to the intake manifold and include one (1) .0625-inch (1/16”) or smaller flange gasket. Drop-in spacers, alteration, physical changes, machining, re-shaping or tampering with any part of the original parts, internal or external, is prohibited. EXCEPTION: The General Motors 604 crate engine is permitted a maximum one-inch (1) tall aluminum spacer with four (4) round non-tapered holes as manufactured. Aluminum spacers are subject to inspection by ASA LMS Officials. Following is a listing of tuning and replacement parts permitted for use on the Holley 4150 HP Carburetor.
Only genuine Holley replacement parts are permitted and must match exactly parts replaced.
a. Jets
b. Bleeds
c. Needle and Seat
d. Emulsion bleeds
e. Power Valves
f. Accelerator pump nozzles
g. Accelerator pump cam
h. Floats include all offered by Holley for
the HP 4150 650 CFM Carburetor.
i. Floats maybe modified/angel cut.
NOTE 1: The use of any type Epoxy on the Holley 650 CFM 4150 HP carburetor, part number 80541- 1 is prohibited.
NOTE 2: Coating of any type or the use of coatings on the Holley 650 CFM 4150 HP carburetor, part number 80541-1 is prohibited.
E5.b K&N Air Filters
The ASA LMS requires the use of K&N Engineering Air Filter for the 2009 season. Only K&N Air Filters sizes 3”, 3.5”, and 4” with the ASA LMS markings are permitted for competition (practice and race) at any ASA LMS event. The approved K&N Air Filter is a dry filter and will remain so. Filters will be available from ASA LMS personnel at the
track, and other outlets.
E5.c K&N Oil Filter
The ASA LMS requires the use of K&N Engineering Oil Filter for the 2009 season. Filters will be available from ASA LMS personnel at the track, and other outlets.
E.6 Starter
Each car must be equipped with a working starter with the capability of starting the event.
E.7 Battery and Battery Box
The battery(s) must be located in a battery box securely mounted flush with the bottom edge of the mainframe rail of the sub-frame. Battery(s) must be isolated from the fuel cell area and covered with a plastic cover to eliminate the threat of a spark fire. Metal-type covers are not permitted. Battery mounting in the cockpit area is not permitted.
RSS and radio battery must be mounted in a secure position inside the car.
E.8 Exhaust System
All cars must have a working exhaust system with no exhaust pipes exiting through the door. The exhaust system must use a 90 degree “turn down elbow. Exhaust pipes from header collector to the 90 degree “turn down elbow”, must maintain the same diameter pipe. No “stinger” or merge collectors of any type are permitted.
IMS) Mufflers are required for competition. Any car not meeting the 95 decibels WILL NOT RACE. All exhaust systems must have mufflers that are not tampered with or hollowed. No custom high dollar headers (no lightweight stainless, Titanium or Inconeal) allowed. Any collector may be used with out a cone style inserts. No one off custom header allowed.
***ANY CAR NOT MEETING THE 95 DECIBELS WILL NOT RACE***E.9 Fuel Cells and Line Routing
A maximum twenty-two (22) U.S. gal fuel cell capacity is approved for competition. Fuel cell bladders must reflect a manufacturing date of Jan 2003 or newer meeting FIA - FT3, 1999 standards. All bladders must utilize “as produced” fuel resistant polyurethane foam baffling, conforming to Mil Spec MILB- 83054, SAE-AIR-4170 or equivalent with no modifications or alteration.
A mandated minimum .125 inch (1/8”) plate, size to cover the width and height of the canister, must be mounted between the fuel cell and the quick change rear end cover as well as between the rear-side of the canister facing the rear bumper.
OPTIONAL MOUNTING: Rear plate maybe mounted to the 2” x 2” cross member between the bumper cover and the fuel cell canister. “U” shaped fuel cells are approved for competition provided the inside “U” has a minimum one-eight inch (1/8”) plate protecting all insides edges.
Fuel cell canister shall be mounted between the rear frame rails ten-inch (10”) +/- 1” above and parallel with the ground plane. Dry-break or Kaiser-style filler systems are recommended and when used, the retainer ring must be installed on the inner side of the left rear quarter panel. Ball check valves in Dry-break or Kaiser-style filler systems are prohibited. Check valve must be of the rubber Flapper style. Alternative to Dry-break shall be a fuel cell fill spout with a secure fitting screw-type cap, subject to approval by ASA LMS. Fuel line must be AN-08 braided steel line with a maximum diameter of .375-inches (3/8”) ID. No fuel lines are permitted to run outboard of the 2” x 3” mainframe rail. Routing of the fuel line, from fuel cell to engine, through the driver compartment or inside any structural members of the chassis is not permitted. This includes, but is not limited to, the center section or the front or rear clips Fuel cell overflow line must have spring-loaded flapper valve. If using a Dry-break or Kaiserstyle filler system, a metal catch can, red in color with 2” white car number displayed on the side is mandated anytime fuel is added to the car. Filler line, vent line and fuel outlet must have flapper/paddle valve. Overflow valve line must be a clear hose with a mandated 1.5- inch (1 ½”) diameter x forty inches (40”) in length. Drilling holes or modification of any type to flapper/paddle valve or spring-loaded flapper valve is not permitted. Pressurized fueling systems are not permitted.
Recommended fuel cell mounting – containers must mount to the rear clip frame rails via two (2) lateral and two (2) longitudinal braces, forming a grid beneath and on both sides of the cell container. A grid brace of two (2) lateral and two (2) longitudinal braces must cross the top of the fuel cell container. Fuel cell grid material shall be 1.5 inches (1 ½”) x .125 inch (1/8”) steel strap.
E.10 Fuel and Fuel Handling
All fuel for ASA LMS competition must be purchased from the ASA LMS Approved supplier. Each competitor is required to purchase a minimum of fifteen (15) gallons of fuel from the on-site fuel supplier at each event, unless fuel has been purchased in bulk at a previous event. Competitor fuel is subject to testing at any time during a sanctioned event.
No oxygen bearing or performance enhancing additives may be introduced into the inductions or fuel supply, either at the fuel cell or upstream in the system. All fuel containers, either plastic or metal, must display car number in four-inch (4”) tall x
two-inch (2”) wide white numbers.
F Chassis
Offset or Perimeter style chassis are approved for competition at ASA LMS sanctioned events.
F.1 Roll Cage Construction
Following are the minimum specification requirements for roll cage construction approved for ASA LMS competition. ASA LMS Officials reserve the right to sonic test structural chassis members at any time during a sanctioned event. Structural chassis member(s) found in violation of minimum requirements render that chassis ineligible for competition until minimum standards are met or exceeded. Drilling holes to lighten any part of the body, chassis, suspension or bolts is not permitted.
Only steel round; rectangular or square tube is approved for roll cage or chassis construction of any main or supporting sub-structures. Wall thickness; size and/ordiameters are specified where necessary. A four-point (4) roll cage structure utilizing a minimum 1.75-inch x .090-inch (1-3/4”x.090”) OD D.O.M. steel tubing is mandatory. The entire structure must be welded to the primary frame structure with a minimum of four (4) horizontal driver side door bars. Front Clip and Mid-Section Rails are mandated to be 2" x 3" x .083" wall steel tubing. The Rear Kick-up Section must be a minimum of 2" x 2"x .083" wall steel with a recommended use of 2" x 3" x .083" wall steel. No material substitution permitted. Main frame rails and side rails must be located within the normal Treadwidth of the car. Roll cage structure must be braced to the front frame stub, with the hoop section surrounding the engine compartment; running rearward with diagonal member’s connection to the rear frame section. Nose and rear bumper cover supporting structures must be a minimum 1.500-inch x .063-inch OD steel tube. No material substitution permitted.
F.2 Driver Side Door Plates
Left side driver support bars or plates are mandatory. See Option A or B listed. No material substitution is permitted. All support bars or plate installation is subject to approval. Option A (Recommended) – 0.125-inch, 1/8” solid steel plate
bolted to the left side door portion of the roll cage. Doorplate must be bolted to the roll cage using a minimum of six (6) each 3/8” (.375-inch) aircraft quality bolts and washers. Welding of the plate to the roll cage is prohibited.
Option B – Minimum 0.125-inch (1/8”) thickness steel plate must be welded to the space between each left-side door bar.
Off-set chassis right side door bars commonly called The Outrigger or The Kick-Up Bar, must be constructed of a minimum 1.250-inch x .065-inch wall round or square steel stock. All supporting Sub-structure must be constructed of 1-inch x .063-inch wall round or square steel stock. No material substitutions permitted.
F.3 Interior Construction
Car interior area must be completely enclosed with respect to engine; track surface; tires and fuel cell compartments. All joints must be flange-fit. Crush panels must be made of aluminum. The area immediately beneath the driver, commonly known as the foot box area, must be constructed of .125-inch thick steel plate. Mainframe rails; front and real clip sections may not be pierced, drilled or otherwise altered for the purpose of reducing weight. Holes may be drilled to attach components and/or brackets only.
F.4 Ballast Weight
Ballast weight attached to any frame rail, must be attached with one (1) one-half inch (1/2”) grade 5 or greater bolt per each Fifteen (15) pounds of weight. Each bolt must be installed with a flat washer against the ballast weight and secured with a locking type nut or standard nut with a cotter pin; safety wire; or jam nut.
Ballast contained inside a frame rail must be secured by one (1) each one-half inch (1/2”) bolt mounted to a one-half inch (1/2”) welded nut for each fifteen (15) pounds of ballast. Frame rails containing ballast weigh must be capped with one-eight inch (1/8”) steel plate welded on the forward side of the frame rail.
Ballast boxes may not be mounted outside of the frame rails in any manor that creates a forward facing ninety (90) degree corner. Ballast weight installed outside of the frame rails, will be in a ballast box made of a minimum of one-eighth (1/8”) thick steel and welded directly to the frame rails. No ballast weight is permitted to be welded to or
attached to leg or doorplates. Holes drilled through frame rails for mounting ballast weight require a three-quarter inch (3/4”) dia x 12 gauge tubing steel sleeve welded on each side of the frail rail.
All ballast weight must be painted white with the car number legibly displayed in red or black on the weight and the total weight displayed. Lead shot; liquid ballast or ballast adjustment devices are not permitted. Tungsten, bb, or liquid weight is not permitted at anytime for ballast weight.
F.5 Steering Column
Quick-release, metal-to-metal steering wheel hubs are mandatory. Steering shaft must be padded or encased by protective sleeve, and resilient padding SFI Specification 45.1, up to but not including the release mechanism.
ASA LMS recommends a collapsible steering shaft meeting SFI Specification 42.1
F.6 Ground Clearance
All ground clearance measurements are taken with the driver out of the racecar, full fuel cell and tires pressure set to ASA LMS mandated pressures. Ground clearance minimums are a. Mainframe rails, - four-inch (4.0”) min.
b. Front Valance (bumper cover) and Rocker Panels, - four-inch (4”) min – sixinch (6”) max.
NOTE: When raising front valance over the 4”min, crankshaft height and mainframe rails must be raised accordingly.
G Running Gear
Major steering components, steering arms; tie rods, idlers etc., must be fabricated from approved ferrous or non-ferrous alloys only. (Exception: See Requirements for ASA LMS designated super speed ways.) Any type of Traction control devices are prohibited.
G.1 Transmissions
Transmissions used for competition in an ASA LMS sanctioned event must be stock from the manufacturer, no aftermarket; adders or options permitted. Transmissions found not to be stock from the manufacturer will be confiscated and subject the team(s) to additional fines and penalties as deemed appropriate by the ASA LMS Tech Dir. NO TITANIUM
PARTS OR CASES ALLOWED
a. Transmissions shall be either manual or clutch-less type automatic with a minimum of two (2) and a maximum of (4) forward gears with a functioning reverse.
b. All transmissions will have a final gear ratio of 1 to 1. All other transmission gear ratios will be 118 or higher (numerical number).
c. Drop out features causing the disengaging of the cluster gear or auxiliary shaft is prohibited.
d. Transmission must utilize a Tail shaft housing
e. Transmissions must remain stock as produced by manufacturer with no thinning: cutting: lightening or drilling of gears permitted.
f. No aluminum sliders, Idlers, or reverse gears; no “factory produced” thin or lightweight upgrade gears permitted.
g. No aftermarket Gun Drilling of Main or Tail shaft is permitted.
h. All approved transmissions must have either an “as produced” internal clutch or utilize a multi-disc, steel-racing clutch. External clutch must be a minimum disc diameter of 5.5”. Clutch must be contained by an approved for racing bellhoushing.
i. Bellhousing must have a 2.5 inch (2 ½”) inspection hole to insure a clear view of the clutch.
j. Transmission with direct drive couplers and internal factory produced clutches are permitted.
k. No Ceramic-coated bearings or Carbon clutch disc are permitted.
l. All internal transmission parts are subject to disassembly and inspection.
G.2 Driveshaft
The driveshaft shall be made of steel or aluminum, painted white. Carbon-fiber Driveshafts are prohibited. Containment loops, constructed of a minimum 0.1875-inch thick steel, are mandatory.
G.3 Front Suspension
Independent front suspension with articulated upper and lower control arm(s) is mandatory. The type of shock absorbers used is subject to the ASA LMS Approved Shock Absorber Manufacturers Listing as published ASA LMS.
One (1) shock absorber and one (1) spring are per corner of the car is permitted. Front suspension adjustment must be done from under the car or by lifting the hood. No holes in the hood, fenders or other body parts from the windshield forward to adjust front suspension component(s) are permitted.
No suspension adjustment devices are permitted in the driver’s compartment area. Knobtype brake bias adjusters are recommended. Weight transfer or suspension adjustment devices, adjustable while the car is under way are prohibited. Spring rubbers are permitted and must be removed manually. No removal devices may extend out side the body of the
car or be accessible in the driver’s compartment.
G.4 Rear Suspension
Non-independent, live axle type rear suspension is mandatory. Rear ends may be Quickchange with full-floating hubs or 9-inch Ford type. Rear axle tubes must be steel or aluminum. No open tube rear ends permitted. A maximum left side rear camber of 1.5 degree is permitted. Right side maximum camber is 1.5 degrees. All camber measurements are made with the rear axle level. Material used for rear end center section is at the discretion of the team (NO TITANIUM) but
hub pins must be steel. Rear end coolers are recommended. Remote rear suspension adjusters are permitted
when accessible through the rear window. A maximum of three (3) one-inch (1”) diameter holes are permitted in the rear window. Each hole can allow access to one adjustment device only. No adjuster may extent forward of the rear window area. All pumps used to circulate fluid for the purpose of cooling the rear end, must be mounted in the center of the car.
G.5 Brakes
Only Brake Calipers from Approved manufacturers are permitted for use at an ASA LMS sanctioned event.
Hydraulically actuated, four-wheel brakes are mandatory. Brake calipers must have standard stamped stainless steel pistons. No up graded piston of any type or material is permitted. Maximum Net Racer Price from any manufacturer must not exceed $500.00 per standard caliper.
Rotors must be made of iron or steel; No Anti-lock Braking Systems (ABS) and/or Recirculators are permitted. Driver compartment brake bias adjustor permitted. Crank or Round type brake bias adjustors knobs must be securely mounted. Round brake bias adjuster knobs are recommended.
G.6 Shocks
The type/brand of shock absorbers used is subject to the IMS Approved Shock Absorber
Manufacturers List and must be fully functional as purchased with a racers cost not exceed $350.00 per shock. All shock parts (internal or external) must be of the same manufacture. No travel limiters; bump stops; external reservoir or canister type shocks are permitted.
H. Wheels
IMS) All wheels must be 15-inch diameter steel wheels designed for racing with an 8- inch width maximum
I. Wheel Studs and Spacers
A minimum of five (5) lug nuts per wheel, minimum 1-inch (1”) solid steel nuts, showing a minimum of two (2) threads through the nut, must extend through the lug nut when bolting wheel to the hub.
Wheel Spacers, if used, must be made of steel or aluminum and a minimum 6.75 inches in diameter. Shims are not permitted when mounting wheel studs to hubs.
J. Tires IMS) Tire will be the Hoosier F-75 an all 4. One-tire rule will apply.
K Safety
In all matters pertaining to safety, Car Owners, Drivers and Crewmembers must review and educate themselves in all safety standards. It is the responsibility of the Car Owners,
Drivers and Crewmembers to install, wear and maintain all safety equipment as specified by manufacturer’s instructions. This includes, but not limited to, helmets, fires suits, racing suits, gloves, shoes, flame-resistant underwear, flame-resistant head sock, head and neck restraint systems, driver’s racing seat and safety belts. Any Safety infraction will deem the car ineligible for competition until the infraction has been repaired or corrected and the car re-inspected. Drivers wearing dental plates or dentures are required to remove them for any hot-track activity. All Teams are required to have filed the ASA LMS Safety Data Sheets prior to any “hot-track” activity. These sheets must be signed and dated by a team representative. This information is Chassis Specific, meaning those teams having more than one chassis must fill out sheets on each specific chassis number used in competition. Teams failing to fulfill this requirement will be black flagged and held until requested
information has been received.
K.1 SFI Foundation
ASA Late Model Series subscribes to the SFI Foundation and references SFI specifications relating to safety equipment used in and on ASA LMS racecars.
K.2 Driver Seat
All driver seats must be manufactured by a recognized manufacturer of seat and safety equipment, multi-layer aluminum seat and approved by ASA LMS Officials. Seats must remain “as purchased and produced”, no holes or other modifications made for weight reduction or homemade seat mounting. Homemade seats or sprint car seats are not permitted.
Seat construction must be solid aluminum sheet material from the seat bottom to above the driver shoulder area; must be fully padded, with padded pelvis, rib and shoulder supports on both the left and right side. Exception – LaJoie seat where construction is such that rib supports are not required.A head restraint system, manufactured by a recognized manufacturer of seat and safety equipment, is mandatory and subject to ASA LMS Officials approval. Bolt on systems are approved for competition. Left and right leg extensions, fully padded, running from the edge of the seat to the entrance of the foot box area are mandated. Installation of knee knockers attached to the steering column is highly recommended.
Recommendation – a minimum 1/8” (.125-inch) thick steel plate be mounted on the front of backside of the rear hoop of the mid-section in front of the left rear wheel. Plate should extend from the horizontal shoulder bar downward the height and width of the driver seat.
K.3 Seat Installation - ASA LMS Officials must approve driver seat installation
Following is the recommended seat mounting for ASA LMS racecars. Seat should be located as far right of the nearest left side longitudinal door bar left side door bars as possible from, a minimum of eight-inches (8”) is preferred. Seat must be secured to the horizontal shoulder bar, the bar immediately behind the driver seat area using a manufactured seat mounting bracket system as manufactured by a recognized racing seat manufacture is recommended. All seat mounting nuts and bolts must be aircraft-quality and a minimum of .375-inch (3/8”) bolts and nuts with a minimum of one-inch (1”) diameter flat fender type washers; 2 each bolts, nuts and washers for seat bracket; 4 each bolts, nuts and washers for seat back; 2 each bolts, nuts and washers for rear area of seat bottom or lower back area; 2 each bolts, nuts and washers for front bottom of the seat area. The seat mounting bracket, regardless of type or manufacturer, must run full width across the back of the seat and be securely mounted to the horizontal shoulder bar using a minimum of two (2) aircraft-quality .375-inch (3/8”) bolts and washers. The seat back must be mounted to the full width seat-mounting bracket using a minimum of four (4) evenly spaced .313-inch (5/16”) bolts and large diameter fender washers, regardless of the type or manufacturer of the bracket. The seat bottom, that portion seat were the seat back and the sitting area of the seat join
together, must be secured to a seat mounting bracket or the floorboard, using a minimum of two (2) aircraft-qualities .375-inch (3/8”) bolts and large diameter washers. Option A – mount may be located in the lower area small of the back of the seat. Mounting must conform as above. The seat front, that portion of the seat area facing and closest to the foot box area, must be secured to a seat mounting bracket or the floorboard, using a minimum of two (2) aircraftquality .375-inch (3/8”) bolts and large diameter washers.
K.4 Seat Belt and Shoulder Harness Installation
All seat belt and shoulder harness systems must me SFI Specification 16.1, type 1. Y-type shoulder belts are not approved for use. Seat belts and shoulder harness systems must have a production date newer than January 2004.
A minimum six-point harness system is mandatory. It is recommended the six-point system be mounted under the
seat to the rear seat support bar under the butt or bucket area of the seat. Seat manufacturers provide pre-drilled
holes with bungs for 6 pt attachment and mounting of the six-point restraint system.
Competitors using the HANS Device may use a standard three-inch (3”) or the Schroth Racing two inch (2”) wide should strap. The Schroth Racing should strap system has been specifically designed for use with the HANS Device. Schroth part numbers are Profi III-6FH; Hybrid III-H; Profi III-6H. Shoulder harness belts shall not be mounted lower than the shoulder line of the driver or 20 degrees. All lap belt and shoulder harness mounting must be done with aircraft-quality bolts and washers. Recommended belt wrapping shown below.
K.5 Driver Helmet – SFI Specification 31.1A or 31.2A
Driver helmets must conform to SFI Specification 31.1A Open Face; 31.2A Closed Face or Snell Foundation SA Standard. All driver helmets must reflect a Snell 2005 certification. SFI or Snell approval sticker must be visible for ASA LMS inspection. Eye protection is mandatory at all times.
K.6 Mandated Driver Head/Neck Restraint System – SFI Specification 38.1
All head and neck restraint devices meet SFI 38.1 specifications and must be correctly worn during any hot track activity. Approved devices are Hans; Hutchens II; R3 and Hybrid.
K.7 Driver Uniform – SFI Specification 3.2 A/5
Driver uniform must be a multi-layer, full-coverage, one-piece fire-retardant uniform specifically designed for racing; fire retardant gloves; socks; and shoes meeting SFI Specification 3.2 A/5 Driver(s) uniform inspection is part of the Technical Inspection process and all uniforms, Practice and/or Race, must be presented for inspection at this time. Drivers with multiple uniforms must present each uniform for inspection at this time.
Recommendation – driver blood type and Rh factor be placed on driver uniform and on adhesive label placed inside the helmet. Any additional information relative to drug allergies etc. should also be placed on the label inside the driver helmet. Use of fire retardant underwear is highly recommended.
K.8 Left Side Widow Net
Left side driver window net is mandatory. Construction may be either wide-mesh or webtype safety net with mechanical release meeting or exceeding SFI Specification 27.1. Net bar must be a minimum of .1875-inch (3/16”) flat steel or .375-inch (3/8”) round stock and run the entire length of the window net between mounting points. Mechanical release
must be welded to the front or “A” pillar end of the bar. Spring-loaded releases are notapproved for competition.
Driver net must be secured in place and centered in the door area and must be secured to the upper roll cage horizontal member.
K.9 Right Side Cage and Roof Nets
Right side cage and roof nets are recommended.
K.10 Resilient Padding – SFI Specifications 45.1
Resilient padding must be installed on any roll cage or frame member that can be reached by any extremity of the driver while the driver is normally seated with restraints fastened. All hard surfaces around the driver’s head must also be padded.
K.11 Rear View Mirrors
Internally mounted, rear view mirrors are permitted.
K.12 Two-way Radios
All cars must have a functioning two-way radio communication system between the driver and team members. Teams are required to have at least one radio monitoring the ASA LMS Race Control Channel at all times during an event. ASA LMS Radio Frequency is 469.5000. Teams must register any frequencies being used with ASA LMS via the Equipment Registration Form with Racing Electornics.
K.14 Safety Wiring
All drain plugs, and quick change cover nuts/bolts, must be drilled and safety wired for Qualifying and Racing. Recommended safety wire patterns are shown below..
WEHRS Quick Lock
15 Fire Suppression System – SFI Specification 17.1
A minimum five-pound (5) on-board fully functional fire suppression system, with multiple discharges point is mandatory. Cold Fire recommended for cockpit usage. It is also mandated each team have a minimum five-pound (5 lb) fire extinguisher in their pit area.
K. 16 Fire Extinguisher in Pit Area
Each Team is required to have a Fifteen pound (15 lb) fire extinguisher in their assigned pit area.
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Other Addendums:
Transponders: All teams will be required to have and maintain their own X260 AMB transponder-scoring device. Traveling teams that do not have one will be offered to rent one for the evening at a cost of $20.00. A valid drivers license is needed to rent unit.
