I've never read that reverse rotation pumps are 20% less efficient. They've been in big block trucks since, what, 1988 as well as Corvettes for about 20 years or so?
Certainly I would think that taking a standard rotation pump and 'turning it backwards' against the impeller vanes would decrease its efficiency since the impeller is working against itself, but since the impeller vanes are designed for reverse rotation...I don't see the loss of efficiency. Anyone know of any tests done in this area? Dale McIntosh I've stopped 15,974 spam messages. You can too! One month FREE spam protection at http://www.cloudmark.com/spamnetsig/?rc=wn44hl > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Cecil Martin > Sent: Friday, July 30, 2004 9:47 PM > To: The Chevelle Mailing List > Subject: [Chevelle-list] making up for it.... > > #2 I had read that when you turn a water pump backwards that > you lose about 20% cooling efficiency. Having a big block > with A/C and knowing I would be in long lines on hot days.... > cooling was priority #1 !!! > But..I still wanted to go serpentine. OK, I'm hard > headed...here's where the Scandinavian part comes in ;) >
