ABOUT IPRA VICTORIA

AN IMPROVED PRODUCTION RACE CAR IS A MODIFIED ROAD CAR INTENDED FOR RACE TRACK USE. IT IS POPULAR BECAUSE IT IS FAST, RELIABLE AND CAN BE RELATIVELY INEXPENSIVE.
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IMPROVED PRODUCTION RACING IS AN EXTREMELY ACCESSIBLE CATEGORY. PERFECT FOR YOUNG DRIVERS STARTING OUT OR SEASONED DRIVERS WHO ARE GUARANTEED TO STILL GET A GOOD RUN FOR THEIR MONEY.

THE EVOLUTION OF IMPROVED PRODUCTION RACING

  • 1980-1981ROAD REGISTERED COMMENCES

    Started by CAMS category is called Road Registered and involve primarily ex rally cars.
  • 1982VRRA FORMED

    In 1982 the Road Registered category was cancelled and the Victorian Road Registered Association was formed.
  • 1991-1992NAME CHANGES TO CLUB CARS

    In the early 90's the category had a name change to 3J Club Cars.
  • 2001NAME CHANGED TO IMPROVED PRODUCTION RACING

    In 2001, the Association changed it's name to the now, Improved Production Racing Association.

An Improved Production race car is a modified road car intended for race track use, and is made popular by the fact that it is fast and can be relatively inexpensive (as race cars go...) Based on a production body shell, with limited modifications to engines, brakes and suspension - a popular formula with beginners and experienced competitors alike.

You are allowed to install a larger or different engine from the same manufacturer as the body shell, with freedoms permitted with head design, internal specification and capacity. The same style of engine (cylinder count, etc) must remain. Popular conversions include late model twin cam 4 cylinder engines into early model 4 cylinder cars, and 13B rotaries into early model Mazdas. Turbos can also often fitted to various cars.

  • The car can be lowered to within 100mm of the ground (excluding the exhaust). Dampers, springs, sway bars and bushes can be changed.
  • Wheel width can be up to 9.5 inches, depending on the vehicle.
  • All Improved Production Cars must run on the same tyre: the Yokohama A050 semi-slick or the earlier A048R.
  • Brakes can be upgraded.
  • Close ratio gearboxes, including sequentials and H-pattern dogboxes, as well as locked or limited slip differentials are allowed.
  • Body add ons such as wheel flares, front spoilers and rear spoilers are allowed on various vehicles.

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