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21-422: The Harris Clash was started in 1992 by Bob Harris of the [1] Harris Auto Racing Company (current owner of Bob Harris Enterprises) as a challenge to other racing chassis manufacturers. Not only is the winning driver of the race given national recognition, but unlike other major events, the car manufacturer is also given major exposure. In 2015, the event included two classes: IMCA Modifieds and IMCA SportMods (which

42-495: A dirt car compared to those on an asphalt car. Adjustments for dirt include weight changes, rear steer changes, spring changes (four corners and lift arm/pull bar), spring mounting position, J-bar height and angle, stagger, tire compound, and tread design. Across the United States, the class of late model race cars may be referred to as super late models, late model stock cars, pro late models, or limited late models, yet

63-538: A division for "lesser modified" cars, which they distinguished as the Sportsman. Specifications for the Sportsman cars mirrored the Modified rules as to bodies and safety, but restricted the degree of engine modifications. As NASCAR’s Grand National cars aged out (current model year and two most recent years only) they became eligible to compete in the Modified and Sportsman division. By 1956 NASCAR had developed

84-703: A feature on the Australian speedway calendar since 2002. Late model cars can also be seen in simulators such as iRacing . United Midwestern Promoters United Midwestern Promoters (UMP) is a short track motor racing sanctioning body in the United States that sanctions short track racing on dirt race tracks from 1/5 mile (0.3 km) in length to 1-mile (1.6 km) in length. UMP currently sanctions eight different racing divisions on over 100 tracks in 19 states and one province in Canada . UMP

105-504: A plan to phase out the pre-war coupes and sedans in favor "Late Models", identified as American cars produced between 1949 and 1955. Looking to differentiate the Sportsman as a truly separate class, in 1968 NASCAR updated their rules to require 1955 and newer bodies, rebranding the class the Late Model Sportsman Series . NASCAR later reorganized the championship points and events into the touring series that became

126-434: A prefabricated hi-impact plastic nose. Similarly, the asphalt racers began experimenting with downforce bodies, and in 2002 a group of asphalt track promoters met with body manufacturers Aluminum Racing Products (ARP) and Five Star to develop a uniform "Approved Body Configuration". This resulted in the now widely accepted ABC Rulebook. There are two types of chassis for asphalt late models. The super late model chassis

147-536: Is 90 points. Bonus Points= 1 point for every car in the pits over 20 in their division in the pits that night. UMP Racing Points Breakdown for all eight UMP racing divisions. 1st-75, 2nd-70, 3rd-65, 4th-60, 5th-58, 6th-56, 7th-54, 8th-52, 9th-50 10th-48, 11th-46, 12th-44, 13th-42, 14th-40, 15th 38, 16th-36, 17th-34, 18th-32, 19th-30, 20th-28, 21st-26, 22nd-24, 23rd-22, 24th-20. Year: Champion, Hometown Year: Champion, Hometown There are currently over 100 UMP sanctioned track in 19 United States states and two tracks in

168-432: Is a common steppingstone for drivers who race in regional and national touring series. Almost every NASCAR Cup Series driver raced in the class while progressing their career, and many crew chiefs have also developed through this level. Late model-type cars are also prevalent as a form of cost-cutting in road racing. As many of these oval-track cars can be adjusted to become road race cars with weight balance changes,

189-657: Is an entry-level modified division). The IMCA Late Models are no longer included in the Harris Clash event. In late 2024, it was announced that the 2025 Harris Clash would add the IMCA Stock [2] . It was announced that the 2018 Harris Clash would be moved to the Deer Creek Speedway, in Spring Valley, MN. The 2018 event was the first IMCA race held at the track. It was announced in 2024, that

210-512: Is offset to favor the left side of the car. Significant items such as the rear end and the engine are positioned on the left, while suspensions are constructed with maximum adjustability in mind. Other asphalt late models use a perimeter rail (symmetrical) chassis, similar to a production car, where there is equal chassis on both sides of the car. Dirt late model chassis are custom built by manufacturers within standardized dimensions that apply across most classes. There are numerous adjustments on

231-628: The Xfinity Series . Earlier car models remained eligible for the Modified division, which evolved to eliminate front fenders. Since that time, the various sanctioning organizations have developed countless rule packages, but for the last half of century, the "Late Model" class distinction has had little to do with the model year of the car. In the late 1970s the costs for the Late Model Sportsman cars became excessive, so

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252-777: The "Late Model Stock Car" was born. Within a few years changes began with the carburetor, and by the mid-1980s the stock front chassis was replaced with a racing clip, for safety and availability. The Late Model that exists today is a full-blown race car with race parts. Late model race cars now include super late models which have looser rules; late model stock cars and pro late models where cars are more aerodynamically aggressive with lighter bodies and enhanced horsepower; and limited late models which have less horsepower. Vehicles built to race on dirt tracks are significantly different from vehicles raced on asphalt . The bodies on late models were constructed from fiberglass molded to resemble original equipment body panels and able to withstand

273-467: The 2025 Harris Clash would be moved back to central Iowa and be held at the Boone Speedway. Modifieds: Sport Modifieds: Late Models: Late model Late Model stock car racing , also known as late model racing and late models , refers to a type of auto racing that involves purpose-built cars simultaneously racing against each other primarily on oval tracks . This type of racing

294-738: The SCCA has listed them in the GT America category, and with the affordability of a late model stock car in the category ($ 30,000 cars with specification engines, and frequently purchased used NASCAR wheels), these cars are prevalent in club racing. Similar rules are used in SCCA Trans-Am TA2 class racing, where the same chassis builders for super late models provide chassis for TA2. Dirt track late model racing also takes place in Australia. The Australian Late Model Championship has been

315-452: The engine specifications may vary between sanctioning bodies. Open engines are typically American naturally aspirated V8s with upwards of 600 horsepower (450 kW). Otherwise, sanctioning bodies may require crate motors to be utilized which may limit production to 400 horsepower (300 kW) to 500 horsepower (370 kW). The sanctioning bodies often adopt GM 602, 603, and 604 engines or Harrington Enforcers. Late model racing

336-400: The first organizations to standardize the rules to ensure equal competition. The rulebook mandated that all cars had to be American made, and 1937 or newer, with full stock fenders, running boards and bodies if equipped by the factory, but their bumpers and mufflers had to be removed. Also, a car's wheelbase, length and width had to remain stock, as did the hood. Two years later NASCAR added

357-406: The rigors of short track racing without the weight. The affordability and availability of sheet aluminum emboldened racers to switch to making their own bodies, as it was cheaper and faster. These individually customized bodies became extreme, and by the mid-1980s a number of dirt track promoters organized as United Midwestern Promoters , standardizing the dimensions for the body panels and requiring

378-482: The sanctioning body will add one more class: UMP Pro ( Crate ) Late Model. UMP DIRTcar currently sanctions different touring series. UMP has a base points system for all its sanctioned tracks and is the same for each of its seven classes. If a track has 20 or fewer cars they will receive the base points. Every car over 20 increases the bonus points awarded. The bonus points are one extra point for every car in that division over 20. So if an event has 20 entries, then

399-423: The winner gets 75 points. With 32 entries, the winner gets 75 + 12 bonus points for a total of 87 points. Every car in the feature that night receives 12 extra points. Any car that does not make the feature will receive 10 points regardless of how many cars are there. Replacement races are based on where drivers finish, not on how many cars there are. There is a cap on points. The most points a feature winner can get

420-738: Was created in 1984 by Bob Memmer. In late 2002, the organization was bought by Ken Schrader , Bob Sargent, Robert Lawton and Howard Commander. In late 2004, UMP merged with Doug Bland's Xtreme DirtCar Series and was bought by Boundless, later rebranded World Racing Group . UMP began by sanctioning UMP Late Model and UMP Modified cars. UMP Modified cars are quite similar in appearance to IMCA Modified cars. UMP reorganized their class system in 2007 by sanctioning one new class. The revised class system included: UMP Super Late Models, UMP Modifieds, UMP Pro(Crate) Late Models, UMP Limited Modifieds, UMP Sportsman, and UMP Street Stocks, UMP Factory Stocks,& UMP 4 Cylinders. UMP announced in late November 2007 that

441-611: Was early-on characterized by its participants' modification to the engines of post-World War II passenger cars, but the modern day understanding references a class that allows considerable modifications to both the engine and body, yet requires some form of front fender package. As the post WWII auto industry began meeting demand for new cars, auto lots were filling up with the pre-war coupes and sedans. These 1939-1941 cars, "modified" with souped up engines, were finding their way to competitions at racing ovals converted from horse racing or newly carved out in fields. In 1948 NASCAR became one of

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