High flow water pump.

[collins8]

I have read several good things about the Stewart pumps and I was wondering if anyone has tried the Lincoln Navigator water pumps??
I am building a high boost motor and I do not care about HP loss to the water pump. I just want a pump that will move the most water possible between 800-6500rpm.
Here is some stuff I dug up about the navigator pumps.
http://www.timskelton.com/lightning/race_prep/powertrain/navi_pump.htm

http://www.modularfords.com/forums/showthread.php?t=106888&highlight=navigator+water+pump

Does anyone think the Evans pump will outflow the navigator pump?

Rob

[Blackened300a]

Heres the difference in the fins on the stock waterpump (left) and the EMP pump.

http://i32.photobucket.com/albums/d12/blackened300a/DSCN0637.jpg

Heres how much room you are dealing with.

http://i32.photobucket.com/albums/d12/blackened300a/waterpump.jpg

The fins on that navigator pump look too big for the 4.6L. Without a measurement or a attempt to install one, I wouldnt know.

[JACook]

IMO, you're seriously overthinking this. The factory pump is a very good piece,
regardless of what it looks like...

[collins8]

Looks like the navigator pump will fit a 4.6L no problem. Here is some more info worth reading.

http://www.f150online.com/forums/showthread.php?t=222982&highlight=evans+water+pump

Rob

[collins8]

Here is the flow data from the stewart 4.6L pump

http://i277.photobucket.com/albums/kk63/collinz8/WATERPUMP.jpg

[Marauderjack]

Here is the flow data from the stewart 4.6L pump

http://i277.photobucket.com/albums/kk63/collinz8/WATERPUMP.jpg

Meaningless without an OEM pump chart!!:confused:

I put on a Stewart pump and could see no difference at all...but it looks nice!!:beer:

Funny thing is the vanes are "basakwards" from the OEM??:eek:

OEM will work fine so why spend 3x-4x the $$$$'s??:rolleyes:

Marauderjack:burnout:

[JACook]

Here is the flow data from the stewart 4.6L pump..

Yes, and as you can see, they quote GPM, and they quote 'static' pressure, but
they never quote what kind of pressure head their pumps are pumping against.
Which, as is the case with most marketing 'data', makes their pretty charts pretty
much worthless.