Engine & Internal Chat about beefing up your engine's insides here.

undercrank Pulley

Old 11-17-2007, 02:23 AM
Thread Starter
Join Date: Apr 2007
Posts: 25
Default undercrank Pulley

can you guys help me out with this one? i dun really get how undercrank pulley works. and i saw urthodox brand undercrank pulley on ebay. how many do i need? and do i also need to buy the belt? and does it have its brand name on the pulley? thanks!
Old 11-17-2007, 08:17 AM
JimBlake's Avatar
Super Moderator
Join Date: May 2006
Location: Wisconsin
Posts: 17,414
Default RE: undercrank Pulley

Are you talking about an underDRIVE pulley? It's smaller than stock, so it drives all your accessories at a little slower speed. Then those accessories take a little less HP away from the engine.

The accessory drives are made so that they work normal at idle. With an underdrive pulley you may notice a bit less boost to the power steering at idle, a bit less power from the alternator at idle, etc. If you spend all your time driving & not idling, maybe that's OK.
Old 11-19-2007, 10:33 AM
Been Around A Long Time Member
Join Date: Aug 2007
Location: Wayne, NJ
Posts: 6,213
Default RE: undercrank Pulley

UR does have it's name on the pulleys and the kit comes with replacement belts.
Related Topics
Thread Starter
Last Post
General Tech Help
10-14-2007 07:19 AM
General Tech Help
04-30-2006 03:16 PM
Engine & Internal
03-07-2006 05:05 PM
General Tech Help
10-10-2005 06:13 AM
Engine & Internal
06-06-2005 10:50 PM

Thread Tools
Search this Thread
Quick Reply: undercrank Pulley


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.