Triple Eight's Jamie Whincup is ready to roll his sleeves up as the reigning six-time V8 Supercars champion looks to reengage his title defence this weekend at Symmons Plains.

Triple Eight return to a circuit in which they dominated at last season, courtesy of two victories from Whincup while Craig Lowndes backed up his team mate's success after charging back through the field to claim the race three spoils at Tasmania.

However, fully aware that the Triple Eight Holden Commodore is not quite the quickest package on the grid at the moment, Whincup admits his Red Bull squad must act on improving their title challenger before they can return to the top step of the podium.

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After being unable to capitalise upon his race one victory at the Clipsal 500, Whincup now plays catch up in the title race from fifth position just ahead of Lowndes in sixth.

"Everyone's talking about last year's results, but last year is last year. There's been plenty going on at the start of this year and we haven't quite been as fast as we would have liked," said the six-time champion.

"We certainly haven't had shockers, we've been there or thereabouts, but we haven't been the quickest car at the last two rounds, so we've got work to do. It's quite a long two hours of practice on Friday, which is a fantastic opportunity to try a few things.

"Fingers crossed the weather's nice and we get a full hill. It'll be quite refreshing to go back to the grass roots of Australian motorsport. We've just come off two massive events, so this is a fairly different one, but one I enjoy just being a traditional event."