underdrive pulley

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Feb 26, 2008 | 07:41 PM

johnnied

Thread Starter

Instructor

Joined: Oct 2007

Posts: 124

Likes: 1

From: baltimore ohio

underdrive pulley

To you guys with an underdrive pulley, has you water temp. went up much? If I install a 25% underdrive will my water pump speed be reduced by 25%?

Feb 26, 2008 | 07:55 PM

hawk4077

Pro

Joined: Apr 2007

Posts: 539

Likes: 107

From: New Bern NC

Feb 26, 2008 | 08:04 PM

vettenuts

Team Owner

Joined: Mar 1999

Posts: 22,025

Likes: 192

From: At the beach in little Rhody

It will be reduced (as will the other accessories) although I haven't seen anyone mention an issue with the stock water pump. I know there have been some issues with the Evan's pump but it is a different design.

Feb 26, 2008 | 08:08 PM

tiojames

Team Owner

Joined: May 2005

Posts: 23,682

Likes: 9

From: Flagstaff Az.

Had one on my vert here in Az. for two years-no difference in temp. Had to take it off to install supercharger.

Feb 26, 2008 | 09:08 PM

Rob's 73

Drifting

Joined: Dec 1999

Posts: 1,541

Likes: 2

From: Raleigh NC

My temps went up 10-15 degrees below 2000 rpms. If I get on it the temps drop to 180 (165 theromostat). No issues so far. I don't know what the summer will bring.