BTW This is another reason you don't want to nickel and
dime the cooling system plumbing by using automotive hose
and hose clamps. Use only silicone rubber hose and constant
torque hose clamps or better yet -20 or -24 AN lines.

Baker Precision down the street from Mazdatrix now has
forty five degree and ninety degree bends in the one inch
size silicone hose. They don't have constant torque hose
clamps yet but you can buy those in every truck stop
in the country. When I need AN fittings and hose Baker is
where I go.

http://www.bakerprecision.com/splsilicone.htm

Paul Lamar


Thanks for repeating that, as I am to that stage....BTW, what
suggestions for a 110 psi oil pump are out there for my NA
PPort(max RPM of 9K at take-off?) And a serious water pump for
added safety..........LOL! Thanks!

Tim Tracy.

The stock oil pump is fine. Some racers shim the pressure
regulator a bit to increase the pressure if they are going
to run 9,000 RPM and above. Some say the third gen pump
is the way to go but I suspect the RX8 pump might
be better still.

BTW there is a very interesting phenomena on all engine
oil pumps. When the e-shaft or the crankshaft is
rotating at super high RPMs there is a centrifugal force
in the shaft internal oil galleries that fights the pump
when it tries to force oil into the shaft from the circumference
port. One of the 11,000 RPM limitations on the max RPM
of the rotary is the failure of the rotor bearings. This might
help.  Porsche, I think, came up with the idea of forcing oil into
the shaft axially from one or the other ends.


What did you have in mind for the serious water pump?