The twin-turbocharged 3.6-liter V6 LF4 racing engine currently employed in Cadillac Racing’s new ATS-V.R may be used in Holden’s next-generation V8 Supercars racecar, according to a report from Speedcafe. The new racer would apparently be based upon the second-gen Opel Insignia, which is expected to replace the current-gen Commodore in Australia in 2017.
V8 Supercars rules currently allow manufacturers to race with a V8 whether the road car is available with an eight-cylinder engine or not. Nissan and Volvo are expected to continue using a V8 in their S60 and Altima V8 Supercars, but with the discontinuation of the rear-drive Commodore, Holden will switch over to a V6.
“We’ll make sure that we’ll only race what we sell,” Holden motorsports manager Simon McNamara told Speedcafe in an interview. “We won’t race a car that’s sold with a four-cylinder and have it racing around with a V8 in it. We won’t do that.”
Teams are eager for Holden to make an official announcement in regards to the future of its V8 Supercars program, however McNamara said General Motors is waiting for the race series to clarify more details on its ‘Gen2’ rules before making key decisions. It seems like an appropriate time to switch over to V6 power, with Cadillac Racing using a six-cylinder for the first time this year.
“We’re in the fortunate position of having a North American division with a motorsport operation that’s significantly larger than mine with a big bucket (of engines). They’re doing a lot of work on a whole range of engines,” McNamara said.
“We’re in dialogue with those guys about what might work out of what they’re doing and then a little bit of stuff about where we’re thinking. Fortunately we’re able to tap into that to determine what our actual package might be,” he added.
Further information in regards to Holden’s V8 Supercars program may become available after the race series new engine and body shape regulations are clearly laid out. The governing body is expected to release more info in regards to the rule changes by mid-year.