Laird International Raceway Rules
LATE MODEL DIVISION 2009
Please read Laird International Raceway General Rules in addition to these Divisional Rules
All rules are subject to the discretion of the Tech. official. If it is not in the rules consider it illegal. If in doubt ask
GENERAL
1. Any factory production model,
from 1965 to date
2. No radio equipment allowed in the cars
3.Fire Retardant Drivers Suits are mandatory; glove and shoes are strongly
advised
4.Helmets are mandatory and must be a Snell 2000 and must be in good condition
5. Four wheel functioning brakes are mandatory, dual master cylinder allowed
(no carbon fibre brake pads or rotors)
6. No electronic traction control devices including anti-lock brakes
7. A weight penalty may be added to any car that does not meet all requirements
(minimum of 50 lbs/ infraction) at discretion of officials
8. Any rule infraction will subject the Driver to the loss of winnings (points
and money). If it is not in the rules consider it illegal.
9. Safety bell housing required with manual transmissions with a large clutch
10. The Base Weight & Left Side Weight will be measured with the Driver in
the car, all other measurements to the Body, Chassis or Engine will be taken
without the Driver
11. Track Officials have the right to inspect any part of any vehicle to
determine compliance with the Rules
12. Carbon fibre parts are Not Allowed anywhere on the car
13. All pit areas must have an ABC Fire Extinguisher visible to track
officials.
WEIGHT
1. Base Weight for all cars is 2700lbs
.
2. Left Side Weight maximum of 60%.
3. Added Weight is permitted, each piece must be painted white and numbered the
same as the car
4.Weight must be securely fastened using a minimum two - ½ bolts.
5. Any Weight added to the car behind the rear axle gear carrier must be a
minimum of 8 ground clearance
6. Any other Weight added must not extend below the main frame rails
ENGINE
1. Cast iron blocks only
2. Single Holley 4412 two-barrel carburetor with stock venturi, metering blocks
and boosters, choke horn removal is allowed, dial-a-jet allowed, race fuel only,
no additives. Fuel testing will be conducted beginning this year. Carb. exchange
can happen without warning at Tech Officials discretion.
3. No electric fuel pumps, turbochargers, nitrous oxide, antifreeze or alcohol
4. Minimum crankshaft height of 10
5. Engine setback of 4. Stock clip car may have 5" set back
6. Must be self-starting and have a reverse gear
7. Exhaust: headers are allowed; mufflers are mandatory, maximum 3½ pipe to
the muffler, the exit must be on the right side behind the driver compartment
under the floor or out the door, no louder than 100 db@ 100
8. Radiator overflow catch can is mandatory on the right side c/w outlet tubing
to the base of the windshield
9. Ignition Box must be located in a way that it is out of the reach of the
driver when sitting in the driver seat, with the Rev Limiting Chip facing to
the right side of the car (away from the driver) All boxes will have a common four
wire trailer type plug with a minimum six inch tail and may be exchanged by
tech officials at anytime
BODY
1. Stock
appearing nose only
2. Wrecker attachment point mandatory
3. Fibreglass or aluminium body parts are allowed
4. Full front lexan windshield and rear windshields are mandatory braces and
clips are recommended
5. Mirrors are not allowed
6. Windshield angle minimum of 22 degrees
7. Window nets are mandatory
8. Side window opening must be minimum of 13 x 22
9. A steel firewall is mandatory between the trunk compartment and the driver
10. A steel firewall is mandatory between the engine compartment and the driver
11. Pressure relief area at the rear of the car must extend 12" down from
the edge of the deck lid and must be sealed at the top and sides. Dark cars
must have bright coloured pressure relief area
12. The floor pan under the driver compartment must be 1/8 steel plate
13. No side skirts ground effects or hood scoops or holes of any kind over
engine compartment
14. Maximum spoiler height is 43 from the ground, 8 from the rear deck
measured with the angle
15. Spoiler to be no wider than the widest part of the rear deck to a maximum
of 72 gussets and lips across the top are allowed side laterals maximum 18 in
length all made with a clear material (measured across the bottom)
16. Rear deck no wider than the widest part of the spoiler to a maximum of 72
and no longer than 30 and a maximum height of 38
17. Rear overhang beyond the centre of the wheel maximum of 50
18. Front overhang beyond the centre of the wheel maximum of 45
19. Rear bumper height maximum of 18 must be rounded no sharp edges or corners
and be no wider than the body
20. Roof height minimum of 45 measured 15 back from windshield in the middle
21. Roof width minimum of 46, minimum length of 40 to a maximum of 52, no
radical offsets allowed
22. Driver must have a clear view a full 180 degrees from their sitting
position forward
23. Body Damage must be repaired from previous nights race
24. Rub Rails may be constructed of only lexan. Must have smooth transitions
front and back.
25. 3-1/2" nose cone to ground clearance measured from front wheel to front wheel
26. Front and rear bumper made of maximum 1.5, .090 tubing only. Ends must be capped.
CHASSIS
1.Wheelbase minimum 102
2.Track width maximum of 81(outside to outside)
3.Main frame rail must be minimum of 8 in circumference
4.Frame rail from a-frame forward and from rear-end back 2x2
5.Driver seat must be an aluminium race type, approved, mounted properly, with
5-point harness 3 wide, 2 over the shoulder and crotch strap (must be date
coded within past 5 years) mount is subject to approval
6.Headrest must be located behind drivers head mid helmet
7.Roll bars near the drivers helmet must be well padded and with the driver
seated normally in place, helmet must clear all bars by minimum of 3
8. Drivers cage and door protection require at least .090-inch wall, 1.5 inch
OD tubing or better, gusseted with completed high penetration welds throughout
NO REDUCTION!
9. Triangular brace in front of the lower left front roll bar post to protect
the drivers feet
10. Side protection plate from the rear panel to front firewall is mandatory,
minimum 10 in height and 1/8 thick steel plate welded in place
11. Approved Fuel Cell mandatory, lowest point minimum of 8
12. Driveshaft hoop is mandatory; drive shaft must be painted white
13. Kill switch must be marked
14.Fire extinguishers are mandatory with easy access and identification for the
safety crews
15. On board fire extinguisher systems with Halon 1301 are strongly recommended
16. Transmission and rear end plugs must be wired
17. Offset chassis allowed
18.Rack and pinion steering
19. No remote reservoir shocks of any kind. Steel body, oil filled shocks may
have a clicker. style adjustment. Any shock assembly, less spring, may be
purchased by L.I.R. for $300 cdn. At any time. No shrader valves.
20.Wide five or ASA hubs
21.Aftermarket spindles
22.Full floaters or quick-change rear-end
23.Under slung rear-end
24.Aftermarket front snub
RIMS AND TIRES
1.Ties must be purchased from Laird
International Raceway and stamped LIR. Right side tires are 367B7only. Left
side tires are 363BY and 363JN only. Tires will be checked, no swapping of
rights or lefts will be permitted.
2.Rim width maximum of 10(steel only)
3.Tire width maximum 10 (American Racer purchased from the track)
4.Soaking, softening or altering the tire is prohibited, must durometer minimum
of 50 hot
5.The Track will impound four tires from each of the Top 5 finishers of the
nights Feature Race to be returned the next Laird Race day. It is mandatory
that the impounded tires be run for qualifying and feature races the following
week or replaced with a new tire purchased from the track through a tech
official