Limited Late Model

 

Click here for a downloadable PDF: Limited Late Model Rules

2018 – Limited Late Model

AREAS HIGHLIGHTED IN RED ARE CHANGES FOR THIS SEASON Variations from any specification or rule must be approved by the speedway tech officials.

Safety

Competitors must wear  fire retardant driver’s uniform, gloves and shoes. Seat belts must be newer than two years old.

No driver adjustable weight jacks.

The drive shaft is to be painted white.

One way driver radios mandatory at all times when on track. If you are caught without radio, it may result in immediate disqualification from event.

Battery should be mounted safely and securely to meet industry standard positions.

Snell 2000 or newer rating on helmet

CHASSIS SPECIFICATIONS

No aluminum frames are permitted in construction of the car.

Minimum wheelbase of 103 inches tolerance of ½ inch

Frame rails must be either a minimum of 8 inches in circumference (2×2 box) and have a wall thickness of no less than .080 or tube frame design with main rails of 1-3/4 OD tubing with a minimum wall thickness of .083. Front and rear subframes must be welded not bolted to main frame rails.

A maximum of 25 ½ – inches from the center of the ball joint to the front of the motor plate/engine bell housing flange will be permitted.

No torsion bar suspension

More than one  spring per shock OK (e.x. “stacked springs”).

Only one rebound and one compression adjustable steel or aluminium shock. No air shock, air dump, air bumps or air limiters permitted. Shocks are the only gas charged components allowed. No spring rods allowed for link bars.

Steel bird cages and steel axle tubes allowed but must be run on both sides. Left and right combinations (bell, tube, cages) must weigh within 2 lbs of each other.

Only solid material bump stops permitted (rubber, urethane, plastic).

Roll bars to be a boxed frame, well braced of at least 1- ½ O.D. Steel pipe or tubing, with a wall thickness minimum of .080 DOM steel or .065 Chromoly tubing allowing for manufacturer’s tolerance. Driver’s side must have a minimum of four protective sidebars, three protective bars on the opposite side of cage.

FUEL CELL

Fuel cell must be encased approved materials. The cell should be located far enough front of the rear bumper and support bars to decrease the possibility of the cell being punctured in a crash.

WEIGHT

Crate motors 602 or 604 2200 lbs.

Steel head 2400 lbs.

No weight allowed on the axle tube. All bolt on weight must be contained under the body.

Maximum weight 2800 lbs.

All weight must be secured by ½ inch or larger bolt. PAINTED WHITE WITH CAR NUMBER ON IT

50lb weight break on cars with all oil shocks.

ENGINE

It is recommended that all engines be pumped, whistled and have a Clinton County Motor Speedway seal attached before entering competition. Having this done is mandatory after two races.

These are the options to have your engines sealed other than during a post race technical inspection. ALL options require advance scheduling with Speedway tech officials.

  1. At one of the scheduled Speedway tech days.
  2. At the speedway on race day. (One week advance notice required, time of arrival to be scheduled by Speedway tech officials.
  3. Scheduling a shop visit with Speedway tech officials.

Engine limited to 360 cubic inches

No aluminum blocks

No aluminum head permitted. Must be steel standard angle cylinder head.

No titanium cranks or rods

Water pump must bolt directly to block

11 to 1 compression

Flat tappet cams only, no mushroom or roller cams.

Any steel/SS Valve with 11/32” min. diameter valve stem. Max 2.08” Intake and 1.625” Exhaust. No titanium except for valve spring retainers and locks. Roller rocker permitted. Stock valve guide angle no relocating valve guides.

Any approved intake other than a smoke ram or tunnel ram. Intake height to be a maximum of 8 inches measured from the top of the carburetor bowl using a straight edge from the bowl to the #3 or #4 runner of the intake manifold.

No external adjustable cam timing device.

No needle bearing cam, crank or rod bearings permitted.

FUEL SYSTEM

Racing gas or Methanol only, top lube is permitted. Methanol according to Federal Standards of Purity, Grade A or AA. Fuel is subject to testing by Technical Director at any time.

Person(s) caught with fuel that does not comply are subject to immediate penalties.

No electric fuel pumps or pressurized fuel systems. No inboard (in driver’s compartment) fuel pumps.

Maximum of four barrels of carburetion. Single carburetor only. No superchargers, fuel injection or turbo chargers

 

TIRES

Hoosier tires 1300 and harder, American Racers 44 or harder. Tires must be 11” with a maximum circumference of 93”.

All sidewall markings must remain visible at all times. Tape may be used to cover compounds. However tech inspector may remove tape at anytime to verify compound.

WHEELS

Maximum width 14” steel or aluminum.

No knock off wheels.

BRAKES

All four wheels must have operating brakes.

No plastic brake lines.

BODIES

Following all World of Outlaw body rules.

Maximum 8” high spoiler. 8” spoiler may be lexan or aluminum. Maximum width 72”.