News

The Battery World Aussie Racing Cars Super (ARC) Series has today announced a further improvement to category operations, involving a strengthened compliance and regulatory structure designed to support a more detailed and specific set of engine specifications.

The updates form part of ARC's commitment to preserving and enhancing the category’s long-standing philosophy as a tightly controlled, one-make championship where driver skill—not budget—determines success.

In its first year of new ownership, the Category is focused on reviewing operations to see if there is anything that can be improved or done differently. An initial change was made a few weeks back to remove the requirement to only have engines built by the single category appointed engine builder which has already delivered cost savings for teams and was very well received by the competitor group.  The engine specifications have also been clarified, now that teams can build their own engine they need an engine spec sheet to guide them which has also been implemented. The last step in terms of engines is compliance  - the rules must be enforced consistently and independently and so additional new resources to improve that aspect are being implemented going forward.  

ARC is proud to confirm the appointment of Pullen Spec Engines as the category’s official independent technical inspection partner. Led by respected engine builders Hayden and Mitch Pullen, Pullen Spec Engines operates from a state-of-the-art facility in Queensland and is backed by a team of highly skilled engineers with deep experience in engine and drivetrain evaluation.

Under this new framework, ARC's Category Technical Delegate, Stephen Caplice, appointed by Motorsport Australia, will manage and coordinate all compliance activities. He will be responsible for the strategic selection of engines and gearboxes for inspection and will work closely with Hayden and Mitch Pullen to ensure that all assessments are carried out fairly, consistently, and with full technical rigour.

All compliance outcomes and technical reports generated through this process will be submitted to Motorsport Australia’s appointed Stewards for review and, where necessary, adjudication under the judicial provisions of the National Competition Rules.

“This is a critical step in evolving the technical credibility of the category,” said Stephen Caplice - Motorsport Australia Technical Delegate  . “With clear specifications and professional independent oversight, we’re able to safeguard the competitive integrity of the series while offering teams the clarity and certainty they deserve.”

The new engine compliance framework is effective immediately, with the first engines set to be impounded for inspection and testing in round 3 of the 2025 Battery World Aussie Racing Cars Series at the Perth Supercars Event on 6-8 June.