IRAP NSWLogo
Improved Production
Improved Production, formerly known as 3J Club Cars, is loosely based on a modified road car, and is made popular by the fact that it is fast and relatively inexpensive, as far as race cars go. Starting out with a production body shell, and then carrying out substantial modifications to engines, brakes and suspension, has proven popular both with beginners to the sport and more experienced competitors. You are allowed to fit a bigger engine from the same manufacturer as the body shell. It can be a twin cam, or a turbo (with a restrictor), or a bridge or peripheral port in the case of a Mazda, depending on the model.
IRAP NSWLogo
Improved Production
Improved Production, formerly known as 3J Club Cars, is loosely based on a modified road car, and is made popular by the fact that it is fast and relatively inexpensive, as far as race cars go. Starting out with a production body shell, and then carrying out substantial modifications to engines, brakes and suspension, has proven popular both with beginners to the sport and more experienced competitors. You are allowed to fit a bigger engine from the same manufacturer as the body shell. It can be a twin cam, or a turbo (with a restrictor), or a bridge or peripheral port in the case of a Mazda, depending on the model.
IRAP NSWLogo
Improved Production
Improved Production, formerly known as 3J Club Cars, is loosely based on a modified road car, and is made popular by the fact that it is fast and relatively inexpensive, as far as race cars go. Starting out with a production body shell, and then carrying out substantial modifications to engines, brakes and suspension, has proven popular both with beginners to the sport and more experienced competitors. You are allowed to fit a bigger engine from the same manufacturer as the body shell. It can be a twin cam, or a turbo (with a restrictor), or a bridge or peripheral port in the case of a Mazda, depending on the model.

Latest Videos

PREMIUM
Over 2 Litre Improved Production Championship Race 3 Sydney June 25th 2022
PREMIUM
Over 2 Litre Improved Production Championship Race 2 Sydney 25th June 2022
PREMIUM
Over 2 Litre Improved Production Race 1 Sydney 25th June 2022
PREMIUM
Under 2 Litre Improved Production Race 2 Sydney June 25th 2022
PREMIUM
Under 2 Litre Improved Production Race 1 Sydney June 25th 2022
Incredible Toyota AE86 Vs BMW E30 Battle

Latest News

Web_SportsSedans-1
NSW MOTOR RACE FINALE 2020

By BLENDLINE MEDIA TEAM

Supported by My105, Blend Line TV brings you th...........

Formula Ford| Formula Vee| Forumula Race Cars| Grassroots| HQ Holden Racing| Improved Production| RX8 Cup| Sports Sedans| Superkarts
Website_Cover (Large)
NSWMRC UNDER LIGHTS – EVENT REPORT

By BLENDLINE MEDIA TEAM

In conjunction with the 30th Anniversary, the lights c...........

Formula Ford| Formula Vee| Forumula Race Cars| HQ Holden Racing| Improved Production| RX8 Cup| Sports Sedans| Super Sports| Superkarts
IPU2LAUG-134
IPRA UNDER 2 LITRE ROUNDS 3 & 4 HIGHLIGHTS

Highlights from rounds 3 & 4 of the Aussiehire.com.au IPRA Under 2 Litre Championship as it heads to ...........

Improved Production
FOS_2710
NSW IMPROVED PRODUCTION ROUND 4

The fourth round of the 2020 NSW Improved Production Championship joined the MRA- Motor Racing Australia ...........

Improved Production

Latest Videos

PREMIUM
Over 2 Litre Improved Production Championship Race 3 Sydney June 25th 2022
PREMIUM
Over 2 Litre Improved Production Championship Race 2 Sydney 25th June 2022
PREMIUM
Over 2 Litre Improved Production Race 1 Sydney 25th June 2022
PREMIUM
Under 2 Litre Improved Production Race 2 Sydney June 25th 2022
PREMIUM
Under 2 Litre Improved Production Race 1 Sydney June 25th 2022
Incredible Toyota AE86 Vs BMW E30 Battle

Latest News

Web_SportsSedans-1
NSW MOTOR RACE FINALE 2020

By BLENDLINE MEDIA TEAM

Supported by My105, Blend Line TV brings you th...........

Formula Ford| Formula Vee| Forumula Race Cars| Grassroots| HQ Holden Racing| Improved Production| RX8 Cup| Sports Sedans| Superkarts
Website_Cover (Large)
NSWMRC UNDER LIGHTS – EVENT REPORT

By BLENDLINE MEDIA TEAM

In conjunction with the 30th Anniversary, the lights c...........

Formula Ford| Formula Vee| Forumula Race Cars| HQ Holden Racing| Improved Production| RX8 Cup| Sports Sedans| Super Sports| Superkarts
IPU2LAUG-134
IPRA UNDER 2 LITRE ROUNDS 3 & 4 HIGHLIGHTS

Highlights from rounds 3 & 4 of the Aussiehire.com.au IPRA Under 2 Litre Championship as it heads to ...........

Improved Production
FOS_2710
NSW IMPROVED PRODUCTION ROUND 4

The fourth round of the 2020 NSW Improved Production Championship joined the MRA- Motor Racing Australia ...........

Improved Production

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