There did not appear to be any issue with his speed on Saturday, nor that of his fellow Ford drivers, who will occupy the front four starting berths on Sunday.
Kostecki pipped Cam Waters (2:04:217) for pole, with Chaz Mostert (2:04:358) third, Ryan Wood (2:04:442) fourth and series leader Broc Feeney (2:04:594) a slightly disappointing fifth.
Brodie Kostecki puts his foot down at Bathurst on Saturday.Credit: Getty Images
Feeney slid on the first corner and lost some control across the top of the mountain. He admitted he wasn’t happy with his lap.
“I’m pretty disappointed with that … anyway, we’re in the mix,” Feeney told Fox Sports.
Earlier, there was drama during the sixth practice session when reigning series champion Will Brown’s Camaro was shunted and spun off the track after an incident that prompted Mostert to remonstrate with Thomas Randle in the pit lane.
Brown was overheard saying on Triple Eight team radio: “I just pooped in my pants.”
Mostert – who was left with a broken leg, wrist and knee injury after a 2015 crash on Mt Panorama – apologised to Brown for the bingle, and fronted Randle after the lap to complain.
“I think I got Randle’d there at the start of my lap, so I don’t know,” Mostert told Fox Sports.
“Randle’s doing his own thing, and he’s not thinking about everyone else out there, and unfortunately it put Will Brown in a big shunt.
“Definitely don’t want to do that at this stage of the weekend, so a bit of a shame, but anyway.
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“I don’t know what information is being fed to him, but you should be conscious of other people out there.”
There were more serious crashes in the lead-up races. Super Utes driver Dave Casey escaped serious injury after flipping his vehicle and rolling several times.
There was also a multi-car pile-up in race two of the Dunlop Series, prompting a restart.