Supermodifieds are a class of open wheel race car that compete on paved short tracks throughout the United States and Canada. The class was founded in the 1950s and is especially popular in the Western states, the Northeast and Great Lakes regions.
Supermodifieds are generally constructed from aircraft-quality .095 thick chromium-molybdenum ("chromoly") frame tubing with steel and aluminum components. The bodies are fabricated from fiberglass and aluminum. The cars are powered by fuel-injected V8 engines that run on methanol fuel and can produce in excess of 800 horsepower. While big block V8 engines are allowed on the west coast, nearly all competitors choose to run aluminum small blocks of 410-430 cu. in., whereas the cars of the east run the mandatory cast iron big block with aluminum heads bored to the allowable 468 cu. in. Cars in the midwest can run small blocks up to 412 cu. in. or big blocks up to 481 cu. in.
Modern era supermodifieds run a radical offset chassis that is up to 18 in. to the left of center. The engine and driveline components themselves are mounted in a specially-fabricated area placed outside the left side frame rails. The engine is thus a stressed member of the chassis. This allows weight distribution to favor the left side (often as much as 70%) and thereby aid cornering around the left-hand turns of an oval track. The giant wings, (generally Template:Convert/sqft' max), mounted on the roll cage of the cars bear a resemblance to those found on sprint cars and serve a similar purpose, designed to produce down force and allow them to make tight turns at high speed. The west coast style cars of ERA and SMRA run a fixed wing, whereas the cars of the east generally run a wing mounted to the suspension or chassis by pneumatic struts. The racing slick tires used on a supermodified are among the widest used in pavement oval racing.
Like sprint cars, supermodifieds do not have starters, batteries, or transmissions and are push-started.
The combination of high power, light weight, and high cornering ability allow supermodifieds to average over Template:Convert/mi/h on a 1/2-mile oval and Template:Convert/mi/h on a Template:Convert/mi oval, with top speeds over Template:Convert/mi/h. They are thought by many to be the fastest short oval track race cars in use.
There are currently four supermodified racing sanctioning bodies in North America.
The largest of the four is the Liverpool, New York-based International SuperModified Association (ISMA). Founded in 1974 by multi-time Oswego Speedway champions Jim Shampine and Nolan Swift to insure the future of supermodified racing. With the help of local businessman, Tom Heveron, they formed ISMA as a forum for owners and drivers to express their ideas and opinions as they felt that they were not allowed to do so under the management of Oswego Speedway.
The goals were to upgrade supermodified racing with better safety conditions, more events per season to insure sufficient purses and to aid drivers with their race related problems. The association worked with track managements in making decisions and in discussing ways of improvement. The club encouraged new drivers and owners interested other tracks in supermodified racing and helped to make the division stronger and more well known to a wider audience.
Tom Heveron as President, with the help of Vice President, Jim Shampine and Secretary/Treasurer Fred Graves, led ISMA through its developmental stages. ISMA negotiated with Lancaster for a 40 lap race held on July 3, 1974 which Todd Gibson of Richwood, OH won. The following year ISMA booked races at Fulton Speedway with a $5,000 purse and $1,000 to win.
Starting in 1976 ISMA developed a point fund with tracks contributing $500– $1,000 per race to this fund. Unlike most other point systems, ISMA awards points to the car owners as ISMA is an owners club rather than drivers. Joining the Heveron Shampine and Graves team, Shirley Letcher took over the responsibility for the point system. In just three seasons, ISMA had accomplished sanctioning over $96,000 in purse money and races, adding a point fund of $4,400 paid by promoters, having tow money at all of the ISMA sanctioned races, having insurance certificates from each promoter on file, and working with other promoters for mare races in 1977. With races at Fulton (NY), Delaware(Ont. CAN), Star(NH), Flamboro(Ont. CAN), and Thompson(CT), Steve Gioia, Jr. became ISMA's first points Champion.
ISMA continues to be at the forefront of supermodified sanctioning bodies, pioneering the franchise system, in which teams purchase a franchise at the beginning of the season. Creating a win-win situation for both the teams and promoters, each of the 19 franchise teams are allowed to miss up to 3 shows during the race season while being guaranteed a minimum starting purse of $1,000 at each event. This system helps to ensure solid, stable car counts and a successful event for the promoter.
As of 2008 ISMA generally sanctions between 13-17 shows a year including two of the prestigious supermodified Triple Crown Series at 1/4-5/8 mile paved short tracks located in 6 states and Canada.
Major events on the ISMA schedule include leg one of the supermodified 'Triple Crown' the Hy-Miler Supermodified Nationals, held annually at Sandusky (Ohio) Speedway since 1978, and leg three of the Triple Crown, the All-Star Classic 200 held at All-Star Speedway in Epping, NH for over 40 years. Races are also run at other tracks across the Northeast and Midwest, with one annual race at Delaware Speedway in Ontario.
The cars in this series use wings that are designed to move with the airflow over the car, lying almost level with the ground on straightaways creating less aerodynamic drag, and standing up in the turns to increase down force. The only allowable engine with ISMA is a cast iron big block up to 468 cu. in. Aluminum heads are allowed and the cars must weigh a mandatory Template:Convert/lb post race.
Established in 2001, the Sandusky, Ohio-based Midwest Supermodified Association (MSA) runs on six tracks, primarily in Ohio but also with visits to Indiana and two tracks in New York, including Oswego Speedway. Drivers from the MSA frequently take part in ISMA races at or near their home tracks, such as Sandusky and Oswego. The 2011, 2012 and 2013 champion is Trent Stephens and ISMA racer Tim Jedrzejek is a 5-time champion. Dave Shullick Jr. is a second generation driver that holds four track records including the Sandusky Speedway track record of 14.057 seconds.
The SuperModified Racing Association (SMRA) governs supermodified racing in the Western United States. The SMRA grew from the defunct Western States Supermodified Racing League (WSSRL), which ran one season in 2007 at tracks in Arizona, California, Idaho, Utah and Washington before disbanding. Of these tracks, only Rocky Mountain Raceway in Utah and Madera Speedway in California have returned, with a third track, Magic Valley Speedway in Idaho, making up the 2008 SMRA schedule.
The SMRA has a much more liberal rulebook than its eastern counterparts, with less restrictions on engine placement (rear-engined cars were universally banned in the 1980s) and allowing other such advancements as independent suspension.
However, the SMRA ceased operations in early 2011 and no sanctioning currently exists in California. Nearly half the races scheduled for 2011 where cancelled due to a shortage of entries.
The oldest of the four currently-operating sanctioning bodies for supermodified racing is the Colorado-only Englewood Racing Association, which was formed in 1965 at Englewood Speedway. That track closed in 1979 and the series now runs a 9-race schedule, all of which are at Colorado National Speedway in Erie, Colorado.
- International Supermodified Association (ISMA)
- Midwest Supermodified Association (MSA)
- Supermodified Racing Association (SMRA)
- Englewood Racing Association
- Supermodified Scorecard, a supermodified fansite
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