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

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.

Jaguar XJ 3.0 TDV6 Long Term Test (2010): December update & 2011 Software review

Jaguar XJ Long Term review & 2011 Software It’s hard to believe it, but our long-term Jaguar XJ has been with us more than a month. And in that month we’ve used it mainly for running around locally. Not by design, it’s just been that sort of month.

Singapore Grand Prix (2012) RESULT

With a very strong Lewis Hamilton on pole in the 2012 Singapore Grand Prix it looks like McLaren are in a dominant position. But are they? McLaren has been strong in the last few races, with Hamilton taking three poles in four and Button winning from lights to flag in Spa, followed by what should have been a second place behind Hamilton at Monza if his car had made it to the end of the race.