CENTRAL OHIO TRACTOR PULLERS ASSOCIATION

LIGHT PRO STOCK

2009 RULES

 

WEIGHT

8500#

TIRES; 

Maximum 24.5x32

AGE OF DRIVER 

18 years or older

FUEL  

Diesel Fuel only, water injection ok, no combustible fuels in water

CYLINDER BLOCK OR CRANK CASE

 Must be from same manufacturer and must bolt in stock location without modification.

All engines must be 540 cubic inches or smaller. All engine upgrades must be approved by the committee.

HEADS  
Cast iron heads only. Must be from same manufacturer.   No over head cams allowed.

INJECTOR PUMPS, ONE ONLY 

            P - Pump maximum, one plunger per cylinder. No computerized fuel systems allowed.

TURBO, ONE ONLY, MANIFOLDS

One single stage turbo allowed. Maximum 3.15 compressor wheel. The wheel may be no larger than  this measurement at the inlet. Tips of wheel must protrude into opening at least 1/4”. All air must enter the compressor housing inlet. No external altering of compressor housings. Any size exhaust outlet and housing. Turbo must not extend through hood. Manifolds must be from same manufacturer and must bolt onto head without modification, alteration for turbo mounting allowed. Combine manifolds OK. No intercoolers. 

RPMs; 

 OPEN

DRAW BAR

Drawbars must not exceed 20 inches in height or less than 18 inches from center of axle to hooking point. No part of draw bar may extend rearward beyond point of hook. Drawbars must be stationary in all directions. No clevis

HOOD, GRILL, FRAME, TRANSMISSION, REAR END, AXLE

Must be for that make and model and must maintain stock appearance. Front ends may be homemade with a maximum of 114” wheelbase. Frames may be homemade but must maintain stock appearance. Upgrades on sheet metal must be approved by the committee.

TOTAL LENGTH OF TRACTOR

            Maximum length 13’ from center of rear axle to the furthest point forward, including weights.

SAFETY EQUIPMENT 

Helmet, Fire Suit, Wheelie bars, Roll cages, kill switches, fire extinguishers, fenders, side shields, SFI flywheels and pressure plates, scatter blanket or steel shields, no steel fans, all electric fuel pumps must be wired to the kill switch. Wide front axles. No cast iron engine frames. (Ladder bars are recommended).

 

THE DIV 10 COMMITTEE WILL INTERPRET ALL RULES. ANY UNFORSEEN PROBLEMS OR OVERSIGHTS WILL BE RULED ON BY THE COMMITTEE.

ALL COATPA GENERAL RULES APPLY.          Joe Cronkleton 937-355-5251 joec@loganrec.com

                                             1-1-09