Group 3J Improved Production Cars Explained

.Group 3J Improved Production Cars is an Australian motor racing category for modified road cars.[1] The category is defined by Motorsport Australia 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:

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:

The Improved Production Racing Association of Australia (IPRA) is recognised by MA 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

Year[6] Winning driverCarCircuitStateDate
1991Terry Lewis Victoria
1992Phil Morriss Winton RacewayVictoria
1993Andrew Brown New South Wales
1994Ken Douglas Mazda RX-7Phillip Island Grand Prix CircuitVictoria
1995Ken DouglasMazda RX-7Mallala Motor Sport ParkSouth Australia
1996Roger HurdHolden LX ToranaBaskerville RacewayTasmania
1997Roger HurdHolden LX ToranaLakeside International RacewayQueensland30 November[7]
1998Noel McFarlaneMazda RX-3Eastern Creek International RacewayNew South Wales29 November[8]
1999Andrew BrownMazda RX-7Phillip Island Grand Prix CircuitVictoria
2000Roger HurdHolden LX ToranaMallala Motor Sport ParkSouth Australia10 September[9]
2001Roger Hurd Holden LX ToranaSymmons Plains International RacewayTasmania24–25 November[10]
2002Ken DouglasMazda RX-7Queensland RacewayQueensland3 November[11]
2003Wayne WakefieldMazda 808Oran Park Grand Prix CircuitNew South Wales31 August[12]
2004Ray HislopFord EB Falcon GTPhillip Island Grand Prix CircuitVictoria2 May[13]
2005Adam AllanDatsun 1200Mallala Motor Sport ParkSouth Australia13 November[14]
2006Scott FlemingMazda RX-7Baskerville RacewayTasmania15 October[15]
2007David LoftusNissan Skyline R32Morgan Park RacewayQueensland30 September[16]
2008Justin KeysMazda RX-3Oran Park Grand Prix CircuitNew South Wales9 November[17]
2009James AtkinsonHolden VX CommodorePhillip Island Grand Prix CircuitVictoria22 November[18] [19]
2010Kevin LedgerSubaru ImprezaBarbagallo RacewayWestern Australia17 October[20]
2011Tony WallisMazda 808Mallala Motor Sport ParkSouth Australia20 November[21]
2012Ray HislopFord BF FalconBaskerville RacewayTasmania11 November[22]
2013Over 2 litre: Ray Hislop
Under 2 litre: Bob Jowett		Ford BF Falcon
Honda Civic		Morgan Park RacewayQueensland29 September[23]
2014Over 2 litre: Kevin Ledger[24]
Under 2 litre: Andrew Tendli		Subaru Impreza
Honda Civic		Wakefield Park Raceway[25] New South Wales9 November
2015Over 2 litre: Ray Hislop
Under 2 litre: James McKinnell		Ford BF Falcon
Honda Integra		Hidden Valley RacewayNorthern Territory12 July
2016Over 2 litre: Ray Hislop[26]
Under 2 litre: Graeme Cox		Ford BF Falcon
Honda Civic		Phillip Island[27] Victoria26–27 November
2017Over 2 litre: Ray Hislop[28]
Under 2 litre: David Waldon		Ford BF Falcon
Mazda RX-3		Barbagallo Raceway[29] Western Australia21–22 October
2018Over 2 litre: Ray Hislop[30]
Under 2 litre: David Waldon[31] 		Ford BF Falcon
Mazda RX-3		The Bend Motorsport Park[32] 9–11 November
2019Ray Hislop[33] Baskerville Raceway[34] 16–17 November
2020
–
2021		align=center colspan=5Not held
2022Over 2 litre: Zak Hudson
Under 2 litre: Kurt Macready		Mazda RX-7
Nissan Silvia		Morgan Park Raceway1–2 October [35]
2023Over 2 litre: Adam Poole
Under 2 litre: Kurt Macready		Holden Monaro
Nissan Silvia		Sydney Motorsport Park16–18 June
2024Over 2 litre: Matt Cherry
Under 2 litre: Kurt Macready		Holden Monaro
Nissan Silvia		Hidden Valley Raceway19–21 July

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

External links

Notes and References

  1. http://www.ipransw.com.au/about.html Improved Production Racing Association of NSW
  2. http://www.camsmanual.com.au/pdf/02_race/d.%203rd%20Category/RA29_Group_3J_2012-2.pdf Specification of Automobiles - Group 3J – Improved Production Cars, 2012 CAMS Manual of Motor Sport
  3. http://www.ipraqld.com The Official Website of the Queensland Improved Production Racing Association
  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. https://web.archive.org/web/20150521035449/http://www.ipranationals.com/index.php/history Nationals History, www.ipranationals.com, as archived at web.archive.org
  7. http://www.natsoft.com.au/cgi-bin/results.cgi?30/11/1997.LIR.R26 Natsoft Results
  8. http://www.natsoft.com.au/cgi-bin/results.cgi?29/11/1998.ARDC.E16 Natsoft Results
  9. http://www.natsoft.com.au/cgi-bin/results.cgi?10/09/2000.MALL.R33 Natsoft Results
  10. http://www.natsoft.com.au/cgi-bin/results.cgi?25/11/2001.SYMM.R29 Natsoft Results
  11. http://www.natsoft.com.au/cgi-bin/results.cgi?03/11/2002.QRI.R25 Natsoft Results
  12. http://www.natsoft.com.au/cgi-bin/results.cgi?31/08/2003.ORAN.R23 Natsoft Results
  13. http://www.natsoft.com.au/cgi-bin/results.cgi?02/05/2004.PHIL.R23 Natsoft Results
  14. http://www.natsoft.com.au/cgi-bin/results.cgi?13/11/2005.MALL.R43 Natsoft Results
  15. http://www.natsoft.com.au/cgi-bin/results.cgi?15/10/2006.BASK.R23 Natsoft Results
  16. http://www.natsoft.com.au/cgi-bin/results.cgi?30/09/2007.MORG.R23 Natsoft Results
  17. http://www.natsoft.com.au/cgi-bin/results.cgi?09/11/2008.ORAN.R23 Natsoft Results
  18. http://www.natsoft.com.au/cgi-bin/results.cgi?22/11/2009.PHIL.R22 Natsoft Results
  19. http://paulrowe.com.au/?page_id=15 2009 Latest Paul Rowe Motorsport News - Nationals Phillip Island
  20. http://www.natsoft.com.au/cgi-bin/results.cgi?17/10/2010.BARB.R26 Natsoft Results
  21. http://www.natsoft.com.au/cgi-bin/results.cgi?20/11/2011.MALL.R37 Natsoft Results
  22. http://racing.natsoft.com.au/636960464/object_10060864.86U/View?39 Results - 2012 Aust Improved Production Nationals -Final, racing.natsoft.com.au
  23. https://web.archive.org/web/20150227171942/http://www.fvee.org.au/sites/default/files/form_files/fvee_nationals_entry_form_2013.pdf 2013 Improved Production & Formula Vee Nationals - General Supplementary Regulations, www.fvee.org.au, as archived at web.archive.org
  24. http://racing.natsoft.com.au/results/ Natsoft Results
  25. https://web.archive.org/web/20150521035449/http://www.ipranationals.com/index.php/history 2014 IPRA National – Supplementary Regulations, www.ipranationals.com, as archived at web.archive.org
  26. http://www.natsoft.com.au/ Online Race Results, www.natsoft.com.au
  27. https://web.archive.org/web/20161129085245/http://docs.cams.com.au/Manual/SportingRegulations/2016/2016%20Improved%20Production%20Nationals%20Sporting%20Regulations%20-%20Version%202.pdf 2016 Improved Production Nationals Sporting Regulations, www.cams.com.au via web.archive.org
  28. https://web.archive.org/web/20171210024135/http://www.iprawa.net/2017-nationals-results.html 2017 IPRA Nationals, www.iprawa.net, as archived at web.archive.org
  29. https://web.archive.org/web/20171210024340/http://docs.cams.com.au/Manual/SportingRegulations/2017%20Improved%20Production%20Nationals%20Sporting%20Regulations%20-%20Version%201.pdf 2017 Improved Production Nationals Sporting Regulations, www.cams.com.au, as archived at web.archive.org
  30. https://web.archive.org/web/20181122235936/http://racing.natsoft.com.au/639427409/object_113120.85Z/View?27 Improved Production Nationals: Over 2 Litres - Final, racing.natsoft.com.au, as archived at web.archive.org
  31. https://web.archive.org/web/20181123000647/http://racing.natsoft.com.au/639430314/object_157813.85e/View?25 Improved Production Nationals: Under 2 Litres - Final, racing.natsoft.com.au, as archived at web.archive.org
  32. https://web.archive.org/web/20181122235108/http://docs.cams.com.au/Manual/SportingRegulations/2018%20Improved%20Production%20Nationals%20Sporting%20Regulations%20-%20Version%201.pdf 2018 Improved Production Nationals Sporting Regulations, docs.cams.com.au, as archived at web.archive.org
  33. https://web.archive.org/web/20200112031325/http://racing.natsoft.com.au/639109026/object_872690.83X/View?50 2019 Improved Production Nationals Final, racing.natsoft.com.au, as archived at web.archive.org
  34. https://web.archive.org/web/20200112030956/https://motorsport.org.au/docs/default-source/sporting-technical/national/2019-improved-production-nationals-sporting-regulations---version-1.pdf?sfvrsn=d8619ff7_2 2019 Improved Production Nationals Sporting Regulations, docs.cams.com.au, as archived at web.archive.org
  35. https://web.archive.org/web/20221014050106/https://autoaction.com.au/2022/10/03/improved-production-nationals-won-by-zak-hudson Garry O'Brien, October 3, 2022, IMPROVED PRODUCTION NATIONALS WON BY ZAK HUDSON, autoaction.com.au, as archived at web.archive.org

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