Tony Wallis (Mazda 808) won the 2011 Australian Improved Production Nationals

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Group 3J Improved Production Cars is an Australian motor racing category for modified road cars.[1]

The category is defined by the Confederation of Australian Motor Sport (CAMS) as being for race vehicles derived from registered production automobiles, with limited modifications to improve performance and reliability.[2] Cars must be mass-produced touring cars, the model of which has been:

  • homologated by the FIA in Group A or
  • commercially available in Australia as a new car through a manufacturer’s dealer network, with at least 200 examples having been registered for road use in Australia or
  • otherwise recognised by CAMS for Group 3J[2]

Modifications to engines, brakes and suspension are permitted and a different engine, from the same manufacturer as the body shell, may be utilised.[1] Cars may be fitted with wheel arch flares, front air dams and rear deck spoilers.[2]

Improved Production Cars compete in one of four of engine capacity classes:

  • 0 - 1600 cc
  • 1600 - 2000 cc
  • 2000 - 3000 cc
  • 3000 - 6000 cc[3]

The Improved Production Racing Association of Australia (IPRA) is recognised by CAMS as the sole entity representing competitors in the category.[2] State championships are conducted in every Australian State and the Northern Territory and the Australian Improved Production Nationals are held annually on a state rotational basis.[3]

The category was formerly known as 3J Club Cars.[1] The name Group 3J Club Cars was used up to the year 2000,[4] and Group 3J Improved Production Cars from 2001.[5]

Australian Improved Production Nationals

Ray Hislop (Ford BF Falcon) at the 2011 Nationals
Adam Allan (Nissan Bluebird) at the 2011 Nationals
Year[6] Winning driver[6] Car[6] Circuit[6] State Date
1991 Terry Lewis Mazda RX-3 Winton Raceway Victoria
1992 Phil Morriss Datsun 1600 Winton Raceway Victoria
1993 Andrew Brown Mazda RX-3 Eastern Creek International Raceway New South Wales
1994 Ken Douglas Mazda RX-7 Phillip Island Grand Prix Circuit Victoria
1995 Ken Douglas Mazda RX-7 Mallala Motor Sport Park South Australia
1996 Roger Hurd Holden LX Torana Baskerville Raceway Tasmania
1997 Roger Hurd Holden LX Torana Lakeside International Raceway Queensland 30 November[7]
1998 Noel McFarlane Mazda RX-3 Eastern Creek International Raceway New South Wales 29 November[8]
1999 Andrew Brown Mazda RX-7 Phillip Island Grand Prix Circuit Victoria
2000 Roger Hurd Holden LX Torana Mallala Motor Sport Park South Australia 10 September[9]
2001 Roger Hurd Holden LX Torana Symmons Plains International Raceway Tasmania 24–25 November[10]
2002 Ken Douglas Mazda RX-7 Queensland Raceway Queensland 3 November[11]
2003 Wayne Wakefield Mazda 808 Oran Park Grand Prix Circuit New South Wales 31 August[12]
2004 Ray Hislop Ford EB Falcon GT Phillip Island Grand Prix Circuit Victoria 2 May[13]
2005 Adam Allan Datsun 1200 Mallala Motor Sport Park South Australia 13 November[14]
2006 Scott Fleming Mazda RX-7 Baskerville Raceway Tasmania 15 October[15]
2007 David Loftus Nissan Skyline R32 Morgan Park Raceway Queensland 30 September[16]
2008 Justin Keys Mazda RX-3 Oran Park Grand Prix Circuit New South Wales 9 November[17]
2009 James Atkinson Holden VX Commodore Phillip Island Grand Prix Circuit Victoria 22 November[18][19]
2010 Kevin Ledger Subaru Impreza Barbagallo Raceway Western Australia 17 October[20]
2011 Tony Wallis Mazda 808 Mallala Motor Sport Park South Australia 20 November[21]
2012 Ray Hislop Ford BF Falcon Baskerville Raceway Tasmania 11 November[22]
2013 Over 2 litre: Ray Hislop
Under 2 litre: Bob Jowett		 Ford BF Falcon
Honda Civic		 Morgan Park Raceway Queensland 29 September[23]
2014 Over 2 litre: Kevin Ledger[24]
Under 2 litre: Andrew Tendli[24]		 Subaru Impreza[24]
Honda Civic[24]		 Wakefield Park Raceway[25] New South Wales 9 November[25]
2015 Over 2 litre: Ray Hislop
Under 2 litre: James McKinnell		 Ford BF Falcon
Honda Integra		 Hidden Valley Raceway Northern Territory 12 July
2016 Over 2 litre: Ray Hislop[26]
Under 2 litre: Graeme Cox[26]		 Ford BF Falcon[26]
Honda Civic[26]		 Phillip Island[27] Victoria 26–27 November[27]
2017 Over 2 litre: Ray Hislop[28]
Under 2 litre: David Waldon[28]		 Ford BF Falcon[28]
Mazda RX-3[28]		 Barbagallo Raceway[29] Western Australia 21–22 October[29]
2018 Over 2 litre: Ray Hislop[30]
Under 2 litre: David Waldon[31]		 Ford BF Falcon[30]
Mazda RX-3[31]		 The Bend Motorsport Park[32] South Australia 9–11 November[32]
2019 Ray Hislop[33] Ford BF Falcon[33] Baskerville Raceway[34] Tasmania 16–17 November[34]
2020
–
2021		 Not held
2022 Over 2 litre: Zak Hudson
Under 2 litre: Kurt Macready		 Mazda RX-7
Nissan Silvia		 Morgan Park Raceway Queensland 1–2 October [35]

Note: The title was contested as the Club Car Nationals prior to 2001.

References

Wikimedia Commons has media related to Group 3J Improved Production Cars.
  1. 1 2 3 Improved Production Racing Association of NSW Archived 2012-12-30 at archive.today Retrieved on 15 March 2012
  2. 1 2 3 4 Specification of Automobiles - Group 3J – Improved Production Cars, 2012 CAMS Manual of Motor Sport Retrieved on 15 March 2012
  3. 1 2 The Official Website of the Queensland Improved Production Racing Association Retrieved on 15 March 2012
  4. ↑ Specifications of Automobiles, Group 3J Club Cars, 2000 CAMS Manual of Motor Sport, page 7-97
  5. ↑ Specifications of Automobiles, Group 3J Improved Production Cars, 2001 CAMS Manual of Motor Sport, page 7-11897
  6. 1 2 3 4 Nationals History, www.ipranationals.com, as archived at web.archive.org
  7. ↑ Natsoft Results Retrieved on 21 March 2012
  8. ↑ Natsoft Results Retrieved on 21 March 2012
  9. ↑ Natsoft Results Retrieved on 21 March 2012
  10. ↑ Natsoft Results Retrieved on 21 March 2012
  11. ↑ Natsoft Results Retrieved on 21 March 2012
  12. ↑ Natsoft Results Retrieved on 21 March 2012
  13. ↑ Natsoft Results Retrieved on 21 March 2012
  14. ↑ Natsoft Results Retrieved on 21 March 2012
  15. ↑ Natsoft Results Retrieved on 21 March 2012
  16. ↑ Natsoft Results Retrieved on 21 March 2012
  17. ↑ Natsoft Results Retrieved on 21 March 2012
  18. ↑ Natsoft Results Retrieved on 21 March 2012
  19. ↑ 2009 Latest Paul Rowe Motorsport News - Nationals Phillip Island Retrieved on 21 March 2012
  20. ↑ Natsoft Results Retrieved on 21 March 2012
  21. ↑ Natsoft Results Retrieved on 21 March 2012
  22. ↑ Results - 2012 Aust Improved Production Nationals -Final, racing.natsoft.com.au Retrieved on 30 September 2013
  23. ↑ 2013 Improved Production & Formula Vee Nationals - General Supplementary Regulations, www.fvee.org.au, as archived at web.archive.org
  24. 1 2 3 4 Natsoft Results Retrieved on 21 May 2015
  25. 1 2 2014 IPRA National – Supplementary Regulations, www.ipranationals.com, as archived at web.archive.org
  26. 1 2 3 4 Online Race Results, www.natsoft.com.au
  27. 1 2 2016 Improved Production Nationals Sporting Regulations, www.cams.com.au via web.archive.org
  28. 1 2 3 4 2017 IPRA Nationals, www.iprawa.net, as archived at web.archive.org
  29. 1 2 2017 Improved Production Nationals Sporting Regulations, www.cams.com.au, as archived at web.archive.org
  30. 1 2 Improved Production Nationals: Over 2 Litres - Final, racing.natsoft.com.au, as archived at web.archive.org
  31. 1 2 Improved Production Nationals: Under 2 Litres - Final, racing.natsoft.com.au, as archived at web.archive.org
  32. 1 2 2018 Improved Production Nationals Sporting Regulations, docs.cams.com.au, as archived at web.archive.org
  33. 1 2 2019 Improved Production Nationals Final, racing.natsoft.com.au, as archived at web.archive.org
  34. 1 2 2019 Improved Production Nationals Sporting Regulations, docs.cams.com.au, as archived at web.archive.org
  35. ↑ Garry O'Brien, October 3, 2022, IMPROVED PRODUCTION NATIONALS WON BY ZAK HUDSON, autoaction.com.au, as archived at web.archive.org
  • [www.ipranationals.com www.ipranationals.com]
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