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.RaceCar Engineering magazine, February 2005, p.58
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.SCCA Rulebook
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.SportsCar magazine, October 2002, p.22 DSR's were the fastest class at the SCCA National Championship races in 2008.
Manufacturers
A-Mac Cheetah Diasio Dragon Galmer LSR Prince Radical Speads Stohr Cars West Race Cars
SCCA National Championship Runoffs
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 SuzukiPrototype 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
External links Sports Car Club of America Sports Racer Network