D Sports Racing now known as Prototype 2 is a sports prototype racecar class for road racing by the Sports Car Club of America. It has been called the one racing category that remains unfettered by regulations that have throttled innovation elsewhere in motorsport.[1]

Mark Jaremko, 4 time DSR National Champion in his Stohr WF1

Usually known simply as DSR, the class began in 1968. DSR evolved from the SCCA's older H Modified class, which traces its roots back to the early 1950s. Today's DSR cars normally use a 1000cc four cylinder engine sourced from a Japanese motorcycle. Several other engines are allowed.[2]

DSR's generally weigh under 1000 lbs with the driver and make 200 bhp at 13,000rpm. The relatively low cost of the engines and some new chassis manufacturers led to an explosion in growth of the class between the years 2000 and 2008.[3] DSR's were the fastest class at the SCCA National Championship races in 2008.

Manufacturers

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Tim Day Jr. in a Suzuki Hayabusa powered Stohr WF1 at the SCCA Runoffs in Protoype 2.
  • A-Mac
  • Cheetah
  • Diasio
  • Dragon
  • Galmer
  • LSR Prince
  • Radical
  • Speads
  • Stohr Cars
  • West Race Cars

SCCA National Championship Runoffs

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Year Winner Car Engine
1966   Ed Luke Lotus Chevrolet
1967   Wayne Koch Koch
1968   Fred Plotkin Abarth Special
1969   Eric Kerman Arachnid Honda
1970   Marvin Thomson Bobsy-Imp
1971   Harry Stephenson Maru Honda
1972   Harry Stephenson Maru Honda
1973   Ronald Dennis Ocelot Suzuki
1974   Bob Marshall Quasar Suzuki
1975   Kendall Noah Ocelot Mk.A Suzuki
1976   Jeff Miller Wynnfurst Kohler
1977   Jeff Miller Wynnfurst Kohler
1978   Dave Leeson LeGrand Mk.18 Kohler
1979   Dave Leeson LeGrand Mk.18 Kohler
1980   Jerry Smith LeGrand Mk.25 Kohler
1981   Jeff Miller Lola T540 Kohler
1982   Paul Decker LeGrand Mk.18 Suzuki
1983   Jeff Miller Wynnfurst Kohler
1984   Thomas Jagemann Lola Kohler
1985   Paul Decker Decker Mk.1/2
1986   Paul Decker Decker Mk.1
1987   Paul Decker Decker Mk.1
1988   Al Beasley Sr. Bease-Decker Mk.II
1989   Travis Duder McCann
1990   Michael Reupert Lola
1991   Travis Duder Crossle Nissan
1992   Travis Duder Crossle Nissan
1993   Travis Duder Crossle Nissan
1994   David Kaiser LeGrand Mk.25D
1995   David Kaiser LeGrand Mk.25D
1996   David Kaiser LeGrand Mk.25D
1997   Michael Reupert Lola
1998   Travis Duder Cheetah SR-1
1999   Bruce Sunseri Cheetah SR-1
2000   Al Beasley Jr. BeaseDecker Mk.1
2001   Marc Hoover Cheetah Mazda
2002   Mark Jaremko Stohr 03D
2003   Mark Jaremko Stohr 03D
2004   John Hill Stohr
2005   Mark Jaremko Stohr WF1
2006   Mark Jaremko Stohr WF1
2007   J.R. Osborne Stohr WF1
2008   J.R. Osborne Stohr WF1
2009   Garry Crook Stohr WF1 Suzuki
2010   Lawrence Loshak Stohr WF1 Suzuki
2011   Tom Bootz Stohr WF1 Suzuki
2012   Scott Tucker West WX10 Suzuki
2013   Chris Farrell Stohr WF1 Suzuki
Prototype 2
2014   Fabian Okonski Stohr 01D Suzuki
2015   Chris Farrell Stohr WF1 Suzuki
2016   Jeff Shafer Stohr WF1 Suzuki
2017   Jeff Shafer Stohr WF1 Suzuki
2018   Tim Day Jr. Stohr WF1 Suzuki
2019   Tray Ayres Van Diemen RF00 Mazda
2020   Greg Gyann Stohr WF1 Suzuki
2021   Tim Day Jr. Stohr WF1 Suzuki
2022   Greg Gyann Stohr WF1 Suzuki
2023   Lucian Pancea Stohr WF1 Suzuki

References

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  1. ^ RaceCar Engineering magazine, February 2005, p.58
  2. ^ SCCA Rulebook
  3. ^ SportsCar magazine, October 2002, p.22
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