View Single Post
Old 01-02-2010, 12:45 AM   #88 (permalink)
Christ
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
Quote:
Originally Posted by bensenvill View Post
other way around


Are you talking about overdrive, or underdrive?

Overdrive is what the pulleys already are, where the driven cog is spinning faster than the drive cog.

Underdrive is used to slow the accessories down, to create less load on the engine. This is done by either making the drive pulley smaller, or making the individual accessory pulleys larger.

We've got to work out terminology here, because you've used both terms, and they're NOT interchangeable.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote