On the highly venerated and awesome TV show, Scrapheap Challenge, at least one episode showed an animation that compared the operation of 2 stroke and 4 stroke engines. Unfortunately it looks like the animator didn't quite understand what was going on and ended up showing the same 2 stroke animation for both except that the 2 stroke animation was played twice as fast. One response defending the animation suggested it was because "that particular 4 stroke engine does fire the spark plug once every revolution."


Satisfied customers are saying