While testing at Queensland Raceway is going to plan for TEKNO Autosports, it is proving a tougher day for Red Bull Racing Australia.
While all four Red Bull drivers - Jamie Whincup, Paul Dumbrell, Craig Lowndes and Steven Richards - have been out on track, Whincup's new chassis is suffering from a vibration issue the team is working through.
Meanwhile TEKNO Autosports will this afternoon focus on miles for co-driver and team boss Jonathon Webb after lead driver Shane van Gisbergen tweaked his STIX Darrell Lea Commodore this morning.
"We're just chipping through, running through some new components, things like that," Webb told v8supercars.com.au.
"We did a heap of driver change practice between Shane and myself live on track, we flipped the circuit around for an hour or so at lunch to practice for Sandown, which is good, and we're about to kick off with some testing for the afternoon and me doing some proper miles."
Webb believes the team has made some positive changes that will see them up the pointy end at the first of the long distance races.
"Like everything, you never really know until you get to the race weekend - but we've found a couple of things since Sydney and we'll definitely be pushing on strong come Sandown."
Getting the balance of the car right has been the hardest thing, he said, and the team will be focusing on that rather than throwing new componentry at the car for the endurance races.