2005 Holden TT36 concept flirted with twin-turbocharging.
This could be Holden's answer to Ford's potent Falcon XR6 Turbo.
General Motors has shown off a twin-turbocharged engine based on the 3.6-litre V6 used in the Holden VF Commodore.
The new motor makes a V8-beating 313kW and 583Nm, 43kW and 53Nm more than the current 6.0-litre V8 in the SS and will be linked to an eight-speed paddle-shift automatic transmission in Cadillac’s new CTS sedan.
Cadillac says the engine “brings a new dimension of technologically advanced performance “ to the brand and develops 90 per cent, or about 520Nm, of its torque from only 2000rpm.
The engine would give Holden an answer to Ford's popular turbocharged XR6, as it is based on the engine used in the Commodore SV6.
But the twin-turbocharged unit has several key departures from the Commodore engine, including new cylinder block and head castings and strengthened internals.
The brand’s director of external communications, Craig Cheetham, poured cold water on the idea of a twin-turbo Commodore in the short term.
“There are no firm plans to introduce it to Holden,” he says.
“Not in the near future... not at all.”
The new VF Commodore SS is expected to retain Holden’s current V8 engine, which puts out 260kW as an auto and 270kW as a manual.
GM’s local arm has previously flirted with turbocharging for the Commodore, in the form of a $3.5 million concept car shown in 2005.
The hot pink Torana TT36 concept car had a similarly twin-turbocharged version of the Commodore V6 which pushed out 280kW and 480Nm of grunt.
The Holden engine plant in Port Melbourne also built turbocharged six-cylinder engines for Saab before the Swedish marque collapsed in 2012.