Supercars great Mark Skaife believes a fired up Jamie Whincup will vent his frustration over his failed Bathurst 1000 appeal and dominate this weekend’s Gold Coast 600.

Red Bull Racing (RBR) had their protest over a time penalty that cost Whincup a fifth Great Race crown dismissed by the Supercars National Court of Appeal in Melbourne on Tuesday night.

RBR have seven days after the verdict to decide whether to take their case to the FIA International Court of Appeal but have indicated they are unlikely to do so.

Five-time Supercars series champion Skaife believed the failed appeal would make Whincup and co-driver Paul Dumbrell almost unstoppable this weekend.

“I believe he will come out this weekend with all guns blazing,” Skaife told AAP.

“He and Paul Dumbrell will be very hard to beat.”

Skaife hoped the appeal would lead to officials simplifying racing rules which he described as “too complex and too hard to administer”.

Whincup crossed the line first at Bathurst only to be relegated to 11th by a 15-second time penalty for his role in a late incident that ending the winning chances of Volvo’s Scott McLaughlin and Holden’s Garth Tander.

“The penalty has got to fit the crime. In our sport I believe there is work for us to do on that,” Skaife said.