The longer the stroke the engine has, the more torque it generates. But longer stroke have lower max rpm.

The larger the bore, the more hp it generates. And larger bore have higher max rpm.

Imagine a long spanner, you can turn big circle and have enough torque to turn a stubborn nuts but you turn less revolution per minute (RPM) since the big motion you need to turn.

eg. Lorry has long stroke; F1 car has large bore.


So we say hi rev in short when in high RPM. Or when we floor the acceleration pedal, we say 'rev kau kau'. Not 'reverb kau kau'.

reverb means echo. I notice quite a lot of people here say 'reverb' as 'rev'.

This post has been edited by dstl1128: Jan 26 2007, 06:34 PM