Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Mazda's rotary spins to its 40th

By Tim Pollard Motor Industry 31 May 2007 02:03 Mazda yesterday celebrated 40 years of making rotary engines. It remains the only mainstream manufacturer persisting with this type of motor and has built 1.97 million of them since 1967. Rotary engines came to prominence in the 1950s as manufacturers experimented with turbine engines, but most admitted defeat in the face of technical difficulties and the inherent thirst of rotary units.

Volvo gives T6 engine the Polestar treatment

Just weeks after announcing its Polestar performance kits for the T5-engined cars, Volvo is now offering packages for the XC60, S60 and XC70 models fitted with its turbocharged six-cylinder engine. The T6 Polestar software package adds 25 hp and 30 lb-ft of torque, bringing totals to 325 hp and 355 lb-ft, respectively. Volvo says the added power won't result in greater fuel consumption, as the tuning of the engine only increases power when needed--though we'd imagine most drivers will feel the need often enough to significantly affect mileage.

Video: Five Goals for the Corvette C7 Stingray with Kirk Bennion

‘Faces of GM', one of General Motor's social media initiatives, has released its latest video exploring the five goals behind the creation of the 2014 Corvette C7 Stingray. The video features the Corvette's exterior design manager, Kirk Bennion, who offers an insight into how these goals were developed into the seventh-generation Corvette.