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Racing Divisions

IMCA Modifieds
mod.jpg (18814 bytes)Door County Speedway is proud to feature perhaps the nation's most popular, grass roots racing division, the IMCA Modifieds.  Low, sleek and fast, the modifieds offer open wheel excitement, yet remain affordable to competitors.  Built for racing from the ground up, the modified class gives teams an opportunity to try different set-ups and strategies.  The modified class is where you'll find the track's most seasoned veterans, with visits from Northeastern Wisconsin's top drivers a weekly occurance.

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IMCA Stock Cars
stock.jpg (14757 bytes)Some of the night's closest finishes happen each week in the IMCA Stock Car class.  These are full-bodied Monte Carlos, Regals and Thunderbirds, with modifications governed by the IMCA.  The rules keep the competition close, and three-wide action is common place.  Here you'll find a good mix of veterans and up and coming stars.  Look for several of Thunderhill's regulars to appear in the national point standings.

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Street Stocks
street.jpg (15766 bytes)You'll find more restrictions than in the IMCA stock cars, but no less excitement.  Thunderhill's street stocks have evolved into a home for many of Door County's best drivers, and best looking cars.  Built from full-bodied street cars, the division is the perfect place for a long career or a stepping stone to the IMCAs.  With plenty of local favorites in the field, the division is a fan favorite. 

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Bombers
bomber.jpg (13691 bytes)What the Bombers lack in experience, they more than make up in enthusiasm!  This is Thunderhill's entry level division.  Tight modification rules make this class for full-bodied cars inexpensive, but by no means boring. Most of the competitors have minimal track time under their belts, leading to "unpredictable" conclusions to each event.  With plenty of "paint swapping", there's usally something happening somewhere on the track.  All three of the Speedway's other division's feature Bomber graduates.

Click here for complete rules