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

Shocking bald tyre sparks safety warning

A TYRE that was completely bald after being taken off a high-performance BMW has sparked warnings from tyre safety charity TyreSafe. The shocking pictures of the incredibly dangerous tyre, whose owner is lucky to be alive, show the extent of the lengths to which some people are pushing the limits of safety. As it is, the tyre would be almost completely ineffective in wet or damp conditions, and how the driver had avoided an accident is a mystery.

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.

US Grand Prix (2013): Vettel steals pole from Webber

US Grand Prix (2013): Vettel steals pole from Webber Sebastian Vettel may already have wrapped up the drivers title, but that hasn’t taken away his motivation to win. Despite what looked like an unbeatable time by Mark Webber, Vettel managed to turn a lap that didn’t look like it had the legs in the first half in to a second half that pipped Webber to pole. Another Red Bull front row.