The Brad Jones Racing driver is secure in the knowledge that he will be staying in his seat for next year, having signed a two-year extension on his contract last year.

And it's paying dividends, with 2019 being the most consistent season of Percat's career to date.

"It's a nice feeling to have all that stuff locked away and not have it in the back of your mind," Percat said.

"When I came here to BJR, I said to Brad and Kim (Jones) that I wanted to be here for the long haul and they obviously feel the same way, so it's great."

To have a chance at winning Bathurst in the modern era, it's imperative the co-driver is just as competitive as the main driver.

With the race now run at full speed all day, a co-driver who is a second a lap off the pace will ruin a team's chances of success.

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In his first two Bathurst 1000's with BJR, Percat teamed with Brad Jones' son, Macauley, but with 'Macca' having moved up from Super 2 to the main game himself this year, Percat needed to find a new co-driver.

He didn't have to go far with former BJR driver Tim Blanchard happy to fill the seat.

Blanchard only stopped racing in the Supercar series at the end of last year to concentrate on the family business, so he's still very much in touch.

"I've been working with Tim since last year about this, so it wasn't random thing," Percat said.

"Generally, the guys just out of the main game are the quickest. He did a Super 2 round this year and started on the front row with not much preparation, so he's going to be quick.

"Tim has a good set of hands and goes well at Bathurst - he knows the cars, knows the team and knows what his role is.

"I always prefer to have a co-driver that's not trying to audition for anything but is just there to do the job."

Percat won Bathurst in his first start there as a co-driver with Garth Tander in 2010 and seems to have the ability to drag out a good result at what is arguably the hardest race on the Supercars calendar.

"I have a little method to my madness as to how I go about that weekend and it can't be a coincidence that I've had three podiums, been in the top five or top ten most of the time - the only time we've had a bad result is when someone actually crashed into us," Percat said.

"It's good to be in the top-ten shootout, but really it's about getting a car that will be quick in the last hour of the race.

"Practice and everything is not that important to me in terms of who's quickest.

"I'm normally thinking two days ahead of where we are in practice, to that last hour when you're not going to die wondering - it's all on the line - and you need is a car that's quick then.

"At the last stop you tighten the belts and hope it just sticks in every corner and then you're in with a shot at winning it."