![]() ![]() The Super Farm class is extremely competitive and any competitor has a shot at winning. The fuel pump is limited to a “P” type pump and competitors must use the stock intake and exhaust manifold for that brand engine. ESP TRACTOR PULLS SCHEDULE PRODiesel fuel is still the only permitted fuel and tire sizes are also the same as Pro Stock Tractors. Engine size is limited to 640 cubic inches, they must use the OEM manifold and heads for that brand engine and can only use one 3″ turbo. Super Farm Tractors (SFT) are closest to “off the farm” workhorses as you will find in NTPA competition. The Super Semis are one of the most popular divisions of NTPA pulling. Sometimes you wonder if they’ll ever stop. When they come thundering down the track, the heavier the load gets, the harder they pull. Weighing in at 20,000 lbs., these behemoths overshadow everything else on the pulling track and for that matter, anything else in motorsports. Tractor Pulling is called the “Heaviest Motorsport on Earth” and the Super Semis are the heavyweights of tractor pulling. Pro Stocks compete on 24.5″ wide tires and at 10,000 lbs., they are the heaviest of the tractor classes. Between that and their 680 cubic inch displacement, the deep-growling Pros are know to the dedicated fan by sound as much as by sight. But with a massive 6″ exhaust, that big whistle can blow a really low note. ![]() This division by rule is restricted to only one turbocharger. The “Pro Stock” division gets us a little closer to those tractors you see in the fields. ![]() Although the Unlimiteds only compete on the NTPA Grand National Circuit, the Modifieds can be seen at NTPA Regional and State level with further limitations on allowed engine number and combination for those levels of competition. Competing at a maximum weight of 7,500 lbs., many times you will see competitors in this division add a motor or two and compete in the Unlimited division. Whereas the “Unlimiteds” can use virtually any number and type of engines, the “Modifieds” are limited in type and number of engines depending on the combination. ESP TRACTOR PULLS SCHEDULE DRIVERKeeping the tractor in a straight line heading down the track is the biggest challenge a driver in this division faces. At 2,050 lbs., the Minis are the lightest division in NTPA competition and are probably the toughest to drive. An amazing one horsepower per pound combined with a wheelbase of less than 100″ also qualifies the “Minis” as the “wildest ride on four wheels”, although they aren’t using all four most of the time. The “Minis” are the undisputed kings in the motorsport world when it comes to “power to weight” ratio. Weighing in at 6,000 pounds, the wheel speeds and wild rides are sure to please the crowds !!!! Unlike all the other NTPA Grand National divisions that are born and bred from the agricultural fields of America, the Light Super Stock division features machines that both utilize diesel and alcohol as fuel choices. The Light Super Stock class is a very colorful division in that many manufacturers are represented, such as Case IH, John Deere, Agco Allis, Oliver, Massey Ferguson, Ford, and even Deutz. Unlike all other forms of NTPA “Stock” classes, the alcohol tractors do not blow plumes of black smoke. In the “Open” division, most of the engines have been modified to run on methanol fuel, although rarely fans will see a diesel fueled Super Stock joining in the fray. From their tube frame component chassis to their highly modified engine, these aren’t your granddad’s John Deere, Case IH, or various other brand models found in agriculture – hardly! These machine can create in excess of 5,000 horsepower weighing 8,000 lbs. The “Super Stock Open” class generates more power than any NTPA “stock” division. These International and John Deere machines produce around 2,500 to 3,000 horsepower with their “stock engine” having up to four turbo chargers flowing the air mixture. As the name implies, diesel is the only fuel allowed in the Super Stock Diesel division. Although they may appear “stock” on the outside, they produce many times over their factory rated horsepower. You might call the “Super Stock” an unlimited version of the “farm” appearing tractor classes. Chassis setup, gearing, tire pressure, and the driver all must be perfect to win in this division. With no turbo charger or super charger to force air into the engine, a competitor in this division must rely on the engine itself to pump as much air as possible and that means that engine settings like the proper air/fuel ratio are more important than ever. Perhaps the closest in appearance to what the average pulling fan drives on the street, the Modified Four Wheel Drive trucks are also the only “naturally aspirated” division in NTPA competition and utilize both rear and front wheels to pull. ![]()
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