Platte Valley Tractor Pullers Inc.

1. GENERAL RULES – See general rules that apply to all tractors.


2. ENTRY - A tractor cannot be entered in classes below its manufactured shipping weight. A Division l tractor may also pull in Division ll if the tractor meets the rules for Division ll. Division ll tractors cannot drop to Division l.


3. MAXIMUM TIRE SIZE

   0 - 3500# 130 sq. in. max

   3501 - 4500# 145 sq. in. max

   4501 - 5500# 170 sq. in. max

   5501 - 6500# 229 sq. in. max

   6501 - 7500# 284 sq. in. max

   7501 - 8500# 300 sq. in. max

   
   
   

   No cut tires. See tire size chart below from Firestone Traction Field and Road and Firestone Field and Road Charts.



4. RIMS AND WHEELS - Tractors must have OEM recommended diameter rims and OEM wheels. Tires must be on rim width, not exceeding tire manufacturers recommended width. Wheels with rims for manufacturers original recommendations to include cut-downs for tractors that may have originally been on steel wheels.


5. SPEED LIMIT - 2.75 MPH. Not allowed to shift torque or gear.


6. WEIGHTS - Weights of bolt on type to either the front or the back wheels. Weights can be made. They must be round and made of metal and be as near appearing to original manufactured weights as possible. No concrete or suitcase weights allowed.


7. ENGINE - Stock block, naturally aspirated. Exceptions: Oliver 99 GM, etc. Stock head, manifold, and carburetor (by part number). Manifolds are to be replacement manufactured parts accepted for that make and model tractor. Stock RPM. Engine parts not in parts book or replacement parts book for that specific tractor cannot be used. Exceptions: Distributors can be used on Antique tractors. A factory coil must be used. No electronic ignitions, square coils, MSD coils or chrome coils allowed.


8. HITCHES - Maximum 16" height (stationary in all directions) locked at 16" on tractors such as IH fast hitch, Ford 3 point hitch, etc. Hitches must be as from factory-unaltered for that specific tractor. Operator must furnish a straight up and down clevis with a minimum opening of 2.5" bolted or pinned tightly with spacers to the draw bar. Hitch measured at hook point of clevis. Farmall H's and M's must pull from an original drawbar hooked to the original belly hook point.
   
   Drawbar must be 24 inches from center of axel to hitch point


9. SAFETY - The front wheels of the tractor are not allowed to exceed 16" off the ground during a pull. Operator is to provide a linked chain or device attached parallel with the center of the front axle with a maximum of 16" on the ground. Chain must be dragging at the time tractor is hooked. Wheelie bars are optional. If wheelie bars meeting upper division requirements are used, the above nose height rule does not apply.


10. APPEARANCE - Tractors must maintain original stock appearance. If a part is not found in the manufacturer's parts book it cannot be used. No extra accessories allowed. No aluminum or chrome allowed except for exhaust pipes. All guards, shrouds, covers and shields shall be in place as from factory and be made of original material (steel or iron) and as near like factory as possible. No homemade rear end covers allowed. Seat must be an original seat or a manufactured seat made for a farm tractor placed with stock mountings (such as TSC). Home made side - shields will not be allowed. Exception: factory side shields such as Olivers. Alternators and straight pipes are allowed.


11. SPONSORS - Advertising plaques or signs may be put on tractor as long as it does not interfere with etching of tractor.

1. GENERAL RULES – See general rules that apply to all tractors.


2. ENTRY - A Division l tractor may also pull in Division II if the tractor meets the rules for Division ll. Division ll tractors cannot drop to Division l.


3. MAXIMUM TIRE SIZE

   0 - 4500# 170 sq. in. max

   4501 - 6500# 229 sq. in. max

   4501-5500# 170 sq. in. max

   6501 - 8500# 300 sq. in. max

   
   
   

   No cut tires. See tire size chart below from Firestone Traction Field and Road and Firestone Field and Road charts. Maximum tire size of 38".



4. RIMS AND WHEELS - Tires must be on rim width, not exceeding tire manufacturers recommended width. Pressed steel wheels are allowed front and rear. No chrome or aluminum wheels allowed.


5. SPEED LIMIT - 3 MPH. Not allowed to shift torque or gear.


6. WEIGHTS - Suitcase weights and custom made weight brackets are permitted, front weight bracket and weights to extend no farther than 11 feet from center of rear axle. Weights may not extend behind rear tires. A stop on the ends of the weight brackets no closer than 4" to the rear wheel (not the rim).


7. ENGINE - Stock block, naturally aspirated. Exceptions: Oliver 99 GM, etc. Stock head, manifold, and carburetor (by part number). If an external part is not in the parts book or replacement parts book for that specific tractor it cannot be used. Exception: straight exhaust pipe allowed, air filter must be used although it may be of any type. RPM - 110% of factory high idle specification (RPM used is the latest model rpm for that make of tractor). No electronic ignitions, (Exception: an electronic pickup inside the original stock distributor or magneto can be used, but distributor or magneto must maintain original appearance). No square coils, MSD coils or chrome coils allowed.


8. HITCHES - Minimum 18" back from the center of the rear axle and a maximum of 18" drawbar height. Hitch material cannot be thinner than 3/4" and not thicker than 1.25". Hitch has to have a 3" hole with 1" material thickness around the hole or a straight clevis bolted or pinned tightly to the drawbar with a minimum of 2.5" hole. Top of hitch adjuster cannot be above center line of axle or hub. Hitches and drawbars must be stationary in all directions. Hitch must be easily accessible (sled operator's discretion).


9. APPEARANCE - Tractors must maintain original stock appearance. If a part is not found in the manufacturer's parts book it cannot be used. No extra accessories allowed with the exception of weight brackets, hang-on weights, wheelie bars, wheels, rims, bolt on hubs, draw bar, muffler and air cleaner. Battery boxes may be moved from stock mounting location. No aluminum allowed except for weight brackets and wheelie bars. No chrome allowed except for exhaust pipes. Homemade side-shields are not allowed. Exception: factory side-shields such as on Olivers. No homemade rear end covers allowed. All guards, shrouds, covers, and shields shall be in place as from the factory and be made of original material (steel or iron) and as near like factory as possible. Seat must be an original seat or a manufactured seat made for a farm tractor placed with stock mountings (such as TSC). Alternators and straight pipes are allowed.


10. SPONSORS- Advertising plaques may be put on tractor as long as it does not interfere with etching of tractor.

1. GENERAL RULES – See general rules that apply to all tractors.


2. Age: Drivers must be 14 years of age or older. Those under 18 years of age must have written parental/guardian permission.


3. Safety: All tractors must have a working safety kill switch.


4. Draw Bar: Draw bars must not exceed 20 inches in height or be less than 18 inches from center of axle to hooking point. No part of draw bar may extend rearward beyond point of hook. Draw bars must be stationary in all directions. No clevises.
   
   Top of hitch adjuster cannot be above center line of axle or hub


5. Weights: Weights must not extend rearward beyond rear tires and cannot be more than 11 feet from the center of the rear axle to the furthest point forward.


6. Tires and Rims: MAXIMUM TIRE SIZE

   18.4 X 38 (any rim width)

   
   
   

   No radial tires. No steel wheels. Two wheel drive only. No duals. Any cut allowed on tires.



7. RPMs: RPM's allowed will be determined by the NATPA RPM Chart. Any tractor not listed will use manufacturer's data. A 10% margin of error will be permitted. All tractors to have positive throttle stops with a working governor in the stock location.


8. Speed: Any gear, speed limit is 3.5 MPH, to be checked by radar. No shifting of TA's. One beep after flag/cone will result in disqualification. The marker for Div III speed will also be used as the mark to stop the tractor if driver wishes to restart pull.


9. Tractors manufactured to use diesel fuel only cannot be converted to gas or LP. Tractors must be naturally aspirated. No turbos or blowers - except Oliver 99GM, etc.


10. Tractors must have the stock engine, frames, transmission, rear end and axle housings or manufacturer's replacement. Stock heads and their replacements are to remain unchanged in outside appearance. No 7 bolt main blocks in Oliver's; no (12) port heads; no 99 heads; no 1600 series heads. AC - WC/WD/WD45 can use D-17 engine; IH - H, 350; M, 450. JD - A/B/G can use power blocks. No M-M 800 heads or blocks. Dual exhaust not allowed except after stock manifold.


11. Enhanced electrical systems permitted in all classes. No rev limiters allowed.


12. Replacement carburetors with no modification of carburetor or manifold. Overhang of carburetor to manifold is not allowed. Only stock appearing manifolds are allowed.


13. No increased height in any tractors (ie: deck plates, shims, girdles) except for stock gasket.


14. OL 66, Farmall H, AC WC, Ford 800, Cockshut 30 and above and like size tractors are not allowed in classes below 3500#. Massey 33, Oliver 77, JD-A 1939, McCormick 10-20, F-20 and down and like size tractors are not allowed in classes below 4000#. Oliver 88, Farmall M, Massey 44, MM-U, JD-G, Case-C/D, JD-A 1940 and up and like size tractors are not allowed in classes below 4500#. Massey 55, IH W-9, IH WK-40, Case LA, Case 600, Moline GB, Moline GBD, Oliver 99 and all like size tractors are not allowed below 5500#.

1. General Rules: See general rules that apply to all tractors.


2. Age: Drivers must be 16 years of age or older. Those under 18 years of age must have written parental/guardian permission.


3. Safety: All tractors must have a working safety kill switch. Ladder bars, wide front ends, fenders, use of seat belts and use of rev limiters are highly recommend.


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


5. Weights: Weights must not extend rearward beyond rear tires and cannot be more than 11 feet from the center of the rear axle to the furthest point forward.


6. Tires & Rims: Tire size maximum 18.4 X 38 or equal size footprint. Any rim width. No radial tires. No steel lug wheels. Two wheel drive only. No duals. Any cut allowed on tires.


7. RPM's: Rpm's allowed will be 120% of 1959 manufacturer's data or 120% of that series engine: i.e., F-30 Farmall can run 20% over 450 IHC RPM's. The NATPA RPM Chart will list maximum RPM'S allowed. If 1959 manufacturer's data is not available then the Nebraska test chart will be used. For safety purposes, any tractor turning 3000 or more RPM's must have side shields of at least .060" metal and a scatter blanket. Enhanced electrical systems permitted in all classes. Rev limiters are allowed. All tractors must have a positive throttle stop with fully operational governor.


8. Speed: Any gear. Shifting of TA's allowed. The 50' marker will also be used as the mark to stop the tractor if driver wishes to restart pull. One beep after 50' will result in disqualification. NATPA of NE Four Hour Shows only will allow any gear any speed.


9. Engine: Tractors must be naturally aspirated. No turbos or blowers - except two stroke GM diesels.


10. Tractors must have stock frame, transmission, rear ends and axle housing. Front axles must be safe, sturdy and similar to stock with a stock wheel base. Crank cases must bolt to transmission in a stock appearing manner, be of the same manufacturer as the original crank case, must be the same length as the original crank case and be the same number of cylinders as the original make and model of the tractor. Heads, blocks (jugs), manifolds must be of the same manufacturer as the crank case or that of a recognized replacement manufacturer.


11. Any updraft agricultural type carburetor will be allowed. Diesels must have the injection pump in the stock location. Diesel tractors may be converted to gas as long as they use gas heads and comply with all the other Division V rules.


12. Any integral plates, girdles or reinforcement devices that enhance the engine rigidity and improve safety will be allowed. Deck plates can be no thicker than 1" material; girdles can be no thicker than 1" material; spacers plates can be no thicker than 2" combined.

1. The follow safety items are highly recommended but not required: Ladderbars,wide front ends, 3/8 inch steel plate over the flywheel and clutch housing or approved safety blanket, steel flywheels, dead man throttle, and fenders. (Tractors with fenders will be allowed an extra 50 pounds if the fenders are as high as the tallest point of the tires and will support the weight of the driver)


2. 1958 and older tractors only.


3. 30% over RPMS per NATPA RPM chart for the specific tractor not to exceed 3000 RPM.


4. No weight limitations on tractor models.


5. Unlimited speed.


6. Any width rim is allowed.


7. Cut tires are allowed.


8. Tire size based on NATPA Div II tire sizes as follows:
   
   

   0 - 4500# class 170 sq. in.
   (13.6 x 38 = 168 sq. in.)

   
   

   4501 - 6500# class 229 sq. in.
   (14.9 x 28 = 170 sq. in., 15.5 x 38= 189 sq. in., 14.9 x 38 = 200 sq. in., 16.9 x 38= 229 sq. in.)

   
   

   6501 - 8500# class 300 sq. in.
   (18.4 x 28 = 250 sq. in., 16.9 x 38= 252 sq. in., 18.4 x 38 = 300 sq. in.)

2 WD AND 4WD - STOCK CLASS - 5300 LBS AND 9600LBS

1. Vehicle must be street legal, licensed and insured.


2. Driver must be 18 or older or has parents consent.


3. Single driver - no passenger during pull.


4. Tires must be D.O.T. approved. No studs or chains.


5. Gas Engines: Pump fuel only, E85 and LP approved must be naturally aspirated. (No turbo or blower) Headers and aluminum intake approved.


6. Diesel Engines: Diesel fule only. No propane injection or nitrous. Turbo and blowers approved.


7. Must have full exhaust to rear axle.


8. Must have solid hitch or bumper.


9. Hitch height - maximum 26 inches.


10. Weights in bed only - must be secured safely.


11. Any parts lost on track will result in disqualification.


12. Vehicle must stop immediately upon sight of red flag signal from judge or be disqualified.


13. All decisions are final. Judges have the right to accept, reject or DQ the vehicle anytime during the contest if it is being operated unsafely or the rules are not being followed.


14. Use of alcohol prior or during your pull will result in disqualification.


15. CNPA and PVTP are not responsible for any accidents or theft occuring at the pull.

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