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HomeNewsWhy low-pressure tyre failures are less likely in Gen3

Why low-pressure tyre failures are less likely in Gen3

THE Gen3-specification Supercars will be less prone to tyre failures at low pressures than their predecessors, according to Macauley Jones.

The Supercars Commission voted in a mandated minimum tyre pressure of 17psi during the 2014 season on safety grounds, following a number of failures.

Aside from some short-term tweaks along the way, that figure has generally remained steady at 17psi up until now.

Supercars will trial a move to a minimum of 15psi for the next three rounds – Perth, Darwin and Townsville – in a bid to further facilitate improved racing.

Speaking on the latest episode of the BJR Run Down podcast, #96 driver Jones noted lower degradation may be a by-product of the change, courtesy of it making tyres less inclined to overheat and the like.

He feels the Gen3 cars’ decreased downforce will limit any associated risk.

“The reason we went to 17psi, which was quite a while ago, was because of tyre failures at a few circuits that we went to,” said Jones, a veteran of 182 Supercars Championship races.

“Sort of high-loaded places like a Phillip Island or a Bathurst, you were going out the gate pretty hard on them, where if you hit a kerb excessively you could damage the carcass of the tyre and that was where the tyre failures were coming in.

“So hopefully we don’t see that again.

“These cars don’t generate as much force as the old ones with the aero and whatnot.”

There will also be a degree of unknown added this weekend when it comes to running as low as 15psi.

“That might change a little bit of the strategy, we’re not exactly sure, we haven’t run these cars that low in psi before because you haven’t been allowed to,” said Jones.

“The rule is that if you go under the minimum tyre pressure you are excluded from the session; it’s a massive penalty, so we work pretty hard to not do that.

“So that will be an interesting part to play out this weekend.”

Other topics discussed in the episode include the dream manufacturer which Jones Jr would love to see join Supercars…

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