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

Chevrolet Camaro ZL1 hits the wind tunnel, gains downforce: Video

We've seen the gaudy output numbers of the 2012 Chevrolet Camaro ZL1: 580 hp and 556 lb-ft of torque make it the fastest Camaro ever produced--by a long shot. We've seen it at the Nordschleife dropping a supercar-like time of 7 minutes, 41.27 seconds around the 13-mile, 170-turn track. Now it's time to learn a little bit about what it takes to stabilize such a powerful beast at speed.

Tomorrow’s world: Fiat's MultiAir engine tech

By Jesse Crosse Motor Industry 14 October 2009 16:50 Fiat this year launches what it claims is a big step forward in variable valve timing: MultiAir. It's the first time that a manufacturer has made a properly variable valve system a production reality, and will slowly be rolled out across most of Fiat's and Alfa's car ranges.How does Fiat's MultiAir vary from existing variable valve timing (VVT) systems?Current VVT systems rely on mechanical systems to open and close the valves. Engineers have long understood the benefits of changing valve opening and closing times to tweak an engine's power and emissions performance, depending on the need for power or parsimony.Valves are an engine's nose and mouth – it inhales through inlet valves and exhales through exhaust valves.

2012 Focus ECOnetic & Fiesta ECOnetic now even more frugal

2012 Ford Focus ECOnetic - now even more frugal If a little fairy from the future had come back in time, even as recently as the 1990s, and told you that a family sized Ford would have 100bhp and do more than 80mpg by 2012, you’d have laughed. But laugh no more – the 2012 Ford Focus ECOnetic average 83.1mpg and emits just 89g/km. Want something even more economical and even less emitting, where you can still have grown-ups in the back?