Engine updates implemented for Tasmania

Tweaks have been made to the Ford and Chevrolet engines ahead of this weekend’s Tasmania round amid Supercars’ ongoing parity assessments.

After a Supercars investigation into inlet air temperature on performance, Supercars has made changes to the mapping of Ford and Chevrolet engines.

The changes came after Supercars engaged MoTeC to develop an ECU software update.

The investigation found that temperatures below the nominal test temperature slightly favoured the Ford engine, while temperatures above this temperature slightly favoured the GM engine.

The changes were validated on the Supercars dynamometer, and have been implemented from this weekend’s Snowy River Caravans Tasmania Super 440 after being signed off by Supercars and both homologation teams,

“This investigation identified a variance in how inlet air temperature affects Ford and GM engines, specifically moving the power curves between the engines,” a Supercars spokesperson said.

“It was found that temperatures below the nominal test temperature of 25°C slightly favoured the Ford engine, while temperatures above this temperature provided a minor advantage to the GM engine.

“In response to these findings, Supercars engaged MoTeC to develop an ECU software update, enabling engine calibrations to vary based on inlet air temperature.

“This software update has now been validated on the Supercars dynamometer and will be implemented for this weekend’s Tasmania round, with revised calibrations introduced to account for inlet air temperature variances.

“Both Homologation Teams have reviewed the test results and proposed calibration changes and have endorsed the rollout of the update.”

Track action in Tasmania will commence on Friday with two practice sessions. Tickets on sale now.