1.  Tractor or pickups may enter 2 classes per event & only one hook per class per tractor.
2.  Pullers have to be at the site 1/2 hour before the pull.  No sign-ups after the pull        
begins.                   
3.  Absolutely NO alternative fuels, alcohol,  nitrous, propane or oxygen
bottles, at ANY PULL.
4.  Pullers may use soy diesel and 10% gasohol.
5.  Non members of our association must pay a $15.00 membership fee good for that pull only, providing they meet all
safety regulations. A $50.00 yearly membership is available.    
6.  Safety issues will be addressed IMMEDIATELY.
7.  You may have a second attempt pull,  if the front of the sled does not go past 100 foot  
marker on your first pull. Unless you go out of bounds.
8.  Height for draw bar will be at 20 inches to the top maximum.  Minimum length of draw bar is
18 inches from center of rear axle.  Must pull from a clevis or welded ring fastened to a draw  
bar.  If using a clevis, you must have a grade 8 bolt & nut to bolt clevis to draw bar.
9.  Tractor will be disqualified when;
* Any part of tractor goes out of bounds.
* Any piece of the tractor falls off the tractor onto the track, unless forward motion
stops.
* Puller leaves the start line under the red flag.
10.  Protests:  Protests must be made while tractors is still hooked.  A $50.00 fee from each party
will be charged.  Winner takes all!  If both are illegal, the $100 goes to the corporation.  All  
illegal equipment must be corrected before puller can pull again. If the puller refuses to be teched    
or if a serious violation is determined the puller will be out for 5 pulls and violation must be fixed.
11.  Injection pump can be checked for plunger size and delivery valve size with no liability  
to the corporation.
12.  Certified papers must be signed before pulling 3000 RPM classes and up.
13.  ZERO TOLERANCE for any pullers drinking alcohol before or during an event if pulling!!!!
14. Tractor wheelbase will be a maximum of 114” from the center of the rear axle to the center of the front axle.
15. Tractor length of 13 feet maximum from center of rear wheels to the farthest point forward including front weights.
16. Tractors with roll cages or a other roll over structure must have a strong and rigid seat with seat belts anchored to something other than the seat itself.  
All tip seats should be securely fastened while pulling.
17. No tolerance on weight except for 1% in stock classes
                                                                 STOCK TRACTOR CLASS

  • General pulling rules apply.
  • 2,750 RPM Max for tractors above the 6700lb class
  • Stock block or factory replacement.
  • Stock "P" pumps allowed in 15,700 lb. Class & above.
  • Turbos - stock 3Lm 466 or equal to 12,700 lb. class, stock turbos that come on tractor after that.
  • Working hydraulics and working PTO.
  • Must have rock shaft.
  • 5700-6700lb class 1963 & older
  • 18.4-34 non cut tires (enforced after this year)
  • no turbos
  • 400 cubic inch limit
  • 10% over stock rpm                                                                                                                                                                                        
                                                                                                       3000 RPM CLASS
  • Roll bar is now mandatory and must support the weight of the tractor.
  • Membership is optional for tractor owner & driver. (see General Rules #5).
  • Safety -  Tractor must have a scatter blanket or steel plate 3/8 inch thick around fly wheel (unless steel flywheel is
    noted). Mandatory air shut off and a spring loaded throttle. Ladder bars are optional. To be bolted from rear axle
    housing to frame rails ahead of flywheel.
  • Speed Limit – No speed limit and 3000 RPM, no tolerance.
  • A puller cannot move to a upper class unless you have all safety equipment for that class.
  • 3000 RPM for engines up to 466 c.u. (467 up to 505 c.u. will be deducted 200 RPM.)  Weight classes are; 6,700#,
    7,700#, 8,700#, 9,700#, 10,700#, 11,700#, & 12,700#.
  • No deck plates between the cylinder, head and block.  Stock cylinder head only (no aluminum heads).  Stock tractor
    manifolds only.  No exhaust headers. No bored blocks to make CU
  • Injection Pumps - Maximum pump sizes: Model A inline 10mm plungers maximum, 13mm Model 100's, and 450
    Rosenmaster. (Stock appearing)
  • Only small electric fuel push pump (under 75 psi).
  • Turbo - Must be 3LM, 466 out of the box, 2 5/16 inch intake or smaller, with no machining, with a 2.750 x 3.5 inch
    bolt pattern.
  • Tractor with blower must have 5/16 inch grade 5 cross bolts in exhaust pipe and pipe must be securely fastened
  • There will be a $450.00 turbo claim in this class.  If this turbo is illegal, you may NOT use it on your tractor.
  • Turbo claim is CASH ONLY!  It has to go through officials to claim.
  • Tires - 20.8 x 38 or 28.4 x 42 bias or radial rubber.(no cut tires)
  • No water injection or fuels other then straight diesel or 10% gasohol. (NO injection of any other sort).
  • No Ice boxes.
  • Side shields required 0.60 minimum thickness
  • Rear wheelie bars required: Must have a 5x5 pad and must be able to support full weight of the tractor.
  • Wide front ends only.
  •                                                                                                                  HOT STOCK CLASS

Full roll cages are now mandatory, seat belts and helmets are also required. (Roll cages start 2010 season)
  • Membership is optional for tractor owner & driver.
  • P-Pumps are allowed.
  • 466 cu. inch limit 6,700#, 7,700#, 8,700#
  • No deck plates, and only stock tractor intake and exhaust.  No spacer plates.  No exhaust headers.
  • No roller rockers or roller cams.
  • 504 cu. inch limit with 0% tolerance on 9,700#, 10,700#, 11,700# & 12,700# (CASE ONLY)
  • Turbo size 2.75 inlet and 3 inch exhaust (1 only).
  • Cast or steel press wheels - Wide front end - all metal.
  • Full working transmission - Electric or plastic fan - Dead man throttle - Air or fuel shut-off - Belt driven fuel pump
    allowed.
  • Electric water injection pump allowed.
  • Clutch and flywheel must be steel if over 3,000 RPM's.
  • Side shields, fenders, wheelie bars able to lift tractor, 3/8" cross bolts in exhaust, 3/8" thick steel band or scatter
    blanket - MANDATORY!
  • Tire size 20.8" x 38"
  • You may sharpen and or cut tires.
  • No alternative fuels as stated in GENERAL RULES.
2222222222222222222222222222222222222222                           Limited Pro-Stock Rules

1, All general pulling rules apply.

2, Engine
A, 505 CI with 1% tolerance.
B, OEM intake manifold only, no fabricated intake manifolds.
C, No deck plates between block and head.
D, No intercoolers or ice boxes.
E, OEM cast iron head only, 2 valves per cylinder maximum, no aluminum heads.
F, No bigger than a 6 cylinder P pump, 13mm model 100 or 450 Roosa Master.
G, Turbo, Limit of 1, Outlaw approved Garrett GT4202 in its unaltered 3X3 form. This is the only legal turbo.
3, Safety equipment.
A, Steel flywheel, steel pressure plate, steel floater plates required, absolutely no gray cast iron flywheel or clutch parts. Clutch    
certification papers required.
B, Clutch housing scatter blanket required. Blanket must wrap around clutch housing 360 degrees with a minimum of 6” overlap.
Blanket must be located inside of safety tie bars.
C, Dead man’s throttle required.
D, Engine side shields required, .060 minimum thickness.
E, All tractors must have rear fenders. The fenders must be strong enough to support the driver’s weight.
F, Electric fans only.
G, Turbocharged engines must have (2) 3/8” grade 5 bolts in vertical portion of exhaust pipe. Bolts to be installed 90 degrees to  
each other, within 1” of each other.
H, All tractors must have air shutoff's sufficient to stop engine. The air shutoff must be activated from the rear of the tractor.
A loop is required to attach the sled cable.
I, 3 bar roll cage mandatory. Seat belt use required.
J, Full fire suit and helmet required.
K, All tractors must have a fully charged 2-1/2lb fire extinguisher mounted within easy reach of the driver.
L, All tractors must have a 3 way fuel shut off system that can be activated from drivers seat.
M, Wheelie bars must have a 5”X5” minimum pad. They must be able to lift the tractor in the heaviest class.
N, Safety tie (tranny) bars mandatory.
O, All tractors must have a working transmission neutral start switch or clutch pedal switch. This will be tested.

4, Tires sizes, 20.8X38 or 24.5X32.

5, Fuel: Diesel Fuel, Bio-diesel or Pure Purple only,  no alcohol, no nitrous, no propane, no oxygen injection. Additives, lubricant for
injection pump only.

6, Mandatory annual membership is required.
7, If tractor is not checked for cubic inches & turbo, then it will pull Super Farm providing they meet all safety regulations for the class.

                                               
                  Super Farm Class



  • General pulling rules apply.
  • Membership  (see General Rules #5)
  • This class also fits with Northeast Nebraska Pullers Association, Inc.
  • No component tractors.
  • Cubic inches will be checked in protest ONLY.
  • Engine size:  640 CU inches or less
  • No bigger then a "P" pump.
  • Turbo:  3 inch intake & 4 inch exhaust. (limit of 1 turbo)
  • Safety equipment is same as the Limited Pro-Stock rules.
  • Fuels:  None of the following will be allowed - ABSOLUTELY NO alternative fuel, alcohol, fuel, nitrous,
    propane, oxygen or hydrogen peroxide.
  • Tire Sizes: 20.8" x 38", 24.5" x 32, NO RADIALS!
                                                                                                      PICKUP CLASSES-No passengers allowed
        Pro Street 4X4 gas 5800lbs to 6600lbs  Seat belts to be used in all classes
                                                                          
1.   Trucks must be street legal with working lights, dot license & insurance.
2.   Aluminum intake, opened horizontal headers behind cab and after market carb allowed. Fuel injection must be factory only.
3.   26" hitch height with 3" loop, 36% of wheel base
4.   Pump gas only-no additives or nitrous
5.   Front weight bracket allowed, not to exceed 6" in front of OEM bumper
6.   1 ton pickup drive train only. Cast iron & removable blocks only
7.   No 4500 style Carburetors allowed, single only.
8.   Must pull 14inches of vacuum at 1000rpm
9.   DOT tires only, no cutting or altering. 33x12.50
10. 500cu inch limit, OEM cast iron heads and block. 1% tolerance
11. No cut out pickup boxes
12. No split rims
13. Drive shaft loops & kill switches recommended
14. No double disk clutch allowed in this class
15. Rearend can be blocked, but must be removable- not welded



    Pro Stock 4X4 5800lbs to 6600lbs    
1.   500cu inch with a 1% tolerance engine and radiator in stock position. Must match make of vehicle
2.   Any cast iron head allowed- NO aluminum
3.   All safety loops required, safety suits, helmets, fire extinguishers, lug nut covers, safety blanket, scatter shield SFI approved with      
       balancer. SFI approved steel flywheel
4.   Hitch height 26", 36% behind rear axle with 3" loop and no more than 20 degrees incline, no cam lever-type rear ends
5.   Solid suspension allowed
6.   Working kill switch and reverse light
7.   Cut out boxes allowed if covered
8.   Front end not to exceed a Dana 70
9.   Not to exceed 60 inches from front of rear end to front of weights
10. Dot tires not cut, 33" max and no more than 12.5" wide
11. Bar tires 31x15.50x15 allowed. Must weigh 200lbs or less
12. No alcohol or Nitrous allowed
13. Headers must be upright or horizontal only
14. No after market aluminum transmissions or transfer cases
15. Any single 4-barrell carb- no tunnel rams
Two Wheel Drive classes will follow the Nebraska Power Puller Rules  
Diesel classes will also follow Nebraska Power Puller Rules