The V8 Supercars Commission has received recommendations from Dunlop on minimum tyre pressure and maximum camber for the 18-inch Dunlop tyres used on the new generation racers.
An investigation into the reasons why some tyres punctured at Queensland Raceway, and prior to that in New Zealand, has found low tyre pressure and high camber are contributing factors.
Poorly maintained track edges are also thought to have contributed.
Findings were shared with the V8 Supercars Commission, which included photographs illustrating the effect of operating with low pressures, in order to maximise life, which puts an extreme level of stress on the tyres.
High camber levels also likely contributed, the investigation found.
V8 Supercars Motorsport General Manager Damien White says there is no evidence or proof the issue was due to the tyres or their construction.
“There are a number of factors to consider,” White said.
“One is the manufacture of the tyre and the build, which we’re comfortable with.
“The other is circuit conditions. There is no doubt in some areas, be it from rain or other reasons, the circuits and drop offs on the back of kerbs haven’t been to the level we expect. That has also contributed.”
V8 Supercars has been working closely with Dunlop engineers to determine the recommendations of maximum camber and minimum cold tyre pressure; as well as a focus on the circuit maintenance.
Senior Dunlop engineers have been invited to attend the PIRTEK Enduro Cup at Sandown, Bathurst and on the Gold Coast to be on hand should any issues arise.
V8 Supercars also works with circuit operators to ensure tracks are prepared to the appropriate level.
“It’s easy to say there are two white lines which delineate the edge of the circuit and the drivers should stay between them, however we understand that when they’re at the limit there’s going to be times they fall off the edge,” said White.
“And when they do that, there needs to be a level of comfort that they’re not going to damage the car, wheel or tyre.”
While the minimum tyre pressure and maximum camber is only a recommendation, White believes teams will welcome the feedback when the final numbers are formally distributed to the teams.
“It’s a recommendation at this stage, however we’re not discounting mandating something in the future,” he said.
“But the expert opinion is there for teams to access and discuss. At the end of the day, the teams can make their own calls, but I think they’ll welcome the engagement.”
The V8 Supercars return to the track for the start of the PIRTEK Enduro Cup at the Wilson Security Sandown 500 Friday next week.