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A V8 Supercar must have a front-engine design and rear-wheel drive. Every car is powered by either a 5.0 L Ford "Windsor" SVO or 5.0 L Small Block Chevrolet race engine (depending on the make) which is capable of producing between 460 and 485 kW (620 ? 650 bhp) of power, but generally quoted as a little over 450 kW (600 bhp) in race trim. Engines have pushrod actuated valves and electronic fuel injection. Both Ford and Holden engines are based on racing engines from their respective US parent companies. Engines are electronically restricted to 7,500 rpm.
Broadly speaking, the engines have a capacity of 5 litres, with 2 valves per cylinder. Compression ratio is regulated to 10.5:1. From the 2009 season onwards, cars run on E85 fuel consisting of 85% ethanol, which while reaping the benefits of a fuel largely made from a renewable resource has seen a marked increase in fuel consumption. EFI configuration is that of individual throttle bodies (albeit throttle actuation is linked/synchronised) and one injector per cylinder.
Engines typically produce approximately 50 less bhp when raced at the Bathurst 1000. This is done both to gain necessary engine longevity on the endurance race as well as to improve fuel efficiency, and moderate the number of potential refuelling stops. The advent of E85 fuel however has reduced the importance of fuel efficiency as a typical Bathurst stint has been reduced from approximately 31-32 laps to 22-23.
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A V8 Supercar must have a front-engine design and rear-wheel drive. Every car is powered by either a 5.0 L Ford "Windsor" SVO or 5.0 L Small Block Chevrolet race engine (depending on the make) which is capable of producing between 460 and 485 kW (620 ? 650 bhp) of power, but generally quoted as a little over 450 kW (600 bhp) in race trim. Engines have pushrod actuated valves and electronic fuel injection. Both Ford and Holden engines are based on racing engines from their respective US parent companies. Engines are electronically restricted to 7,500 rpm.
Broadly speaking, the engines have a capacity of 5 litres, with 2 valves per cylinder. Compression ratio is regulated to 10.5:1. From the 2009 season onwards, cars run on E85 fuel consisting of 85% ethanol, which while reaping the benefits of a fuel largely made from a renewable resource has seen a marked increase in fuel consumption. EFI configuration is that of individual throttle bodies (albeit throttle actuation is linked/synchronised) and one injector per cylinder.
Engines typically produce approximately 50 less bhp when raced at the Bathurst 1000. This is done both to gain necessary engine longevity on the endurance race as well as to improve fuel efficiency, and moderate the number of potential refuelling stops. The advent of E85 fuel however has reduced the importance of fuel efficiency as a typical Bathurst stint has been reduced from approximately 31-32 laps to 22-23.
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- Broadcast Yourself.