Overview
- Teams remain in the dark this week as Supercars finalises upgraded barometric testing in Brisbane and holds meetings only hours before Bathurst practice begins.
- The tests measure how Mount Panorama’s thinner air affects the pushrod Chevrolet V8 versus Ford and Toyota double‑overhead‑cam engines using a new exhaust‑side dyno process.
- Any power equalisation is likely to be made through camshaft timing tweaks or small air‑restrictor changes and could be applied for Bathurst then reverted for the next round.
- A rule change to the Teams Racing Charter now lets Supercars impose specification changes without unanimous team sign‑off, a shift that recalls last year’s unfinished report and Dick Johnson Racing’s protest.
- Late communications, recent mid‑event aero rollbacks at The Bend and limited spare engines at Supercars’ shop have fuelled paddock frustration and raised concerns about sandbagging and logistical readiness.