four-stroke

Until electric cars and their associated technologies (motors, batteries, controllers etc.) become mainstream, the internal combustion engine will need to be further refined in order to meet upcoming fuel economy requirements and current emissions regulations -- while still producing the power that ...

A few years ago, Bajaj stopped making their Chetak and Legend scooters, and since then there has been a dinstinct lack of any steel-bodied, manual transmission, 4-stroke scooters on the market. Genuine Scooters has begun selling their Stella scooter again after a short absence and Vespa themselves ...

Click for more photographs of this amazing piece of paper engineering. digg_url = 'http://green.autoblog.com/2008/03/03/worlds-cleanest-v12-four-stroke-engine-make-it-yourself-for/'; Pining for a V12 but don't want the cumbersome truck or racing car to put it into? Why not make one yourself out ...