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B12H Balance of Performance confirmed for 2019

Mat Coch

Friday 25th January, 2019 - 4:22pm

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The Balance of Performance has been set for the Liqui-Moly Bathurst 12 Hour

Organisers have confirmed the Balance of Performance regulations which teams will need to adhere to for next weekend’s Liqui-Moly Bathurst 12 Hour.

Balance of Performance is the means with which regulators ensure a degree of parity across a field of GT cars that features a mix of design philosophies.

A combination of methods is used including weight, air and fuel-rig nozzle restrictors, ride heights, and for turbo cars, boost pressure limitations.

The intent is to level the cars out across a race, while maintaining the inherent strengths and weaknesses intrinsic to each design in comparison to its opposition.

It’s standard practice for a revised Balance of Performance to be issued for major events and competitions, with changes not uncommon from one year to the next.

Of note for next weekend’s race is that 50kg of weight has been added to the Audis over the standard homologation, while the Aston Martins will carry an additional 80kg of ballast.

The heaviest car in the field will be the Mercedes-AMG GT3, and the lightest the Porsche 911 GT3 R which comes in at 95 kilograms less than the Mercedes.

Opening practice for the Bathurst 12 Hour field begins next Friday, though action at the event begins on Thursday with support classes on track.

Liqui-Moly Bathurst 12 Hour Balance of Performance

Make Model Weight Restrictor Ride Height Fuel Rig Restrictor
Aston Martin Vantage GT3 1310kg 2x 41.5mm 75mm / 180mm 34mm
Audi R8 LMS 1275kg 2x 39mm 65.5mm / 128mm 30mm
Bentley Continental GT3 1290kg (Turbo PBoost Limits) 134mm / 132mm 35mm
BMW M6 GT3 1325kg (Turbo PBoost Limits) 93mm / 93mm 36mm
Ferrari 488 GT3 1290kg (Turbo PBoost Limits) 73mm / 98mm 32.5mm
Lamborghini Huracan GT3 1290kg 2x 39mm 65.5mm / 128mm 30mm
McLaren 650S GT3 1265kg 2x 36mm 67mm / 74mm 36mm
Mercedes AMG GT3 1340kg 2x 36mm 81mm / 87mm 33mm
Nissan GT-R NISMO GT3 1295kg (Turbo PBoost Limits) 124mm / 165mm 34mm
Porsche 911 GT3 R 1245kg 2x 41.5mm 72mm / 124mm 30mm

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