"Brian D. Cain" wrote:

List friends, I remember seeing some threads awhile back (as far as 3 years
ago)
detailing some of the modifications that some of you guys perform on the OEM
Mazda water pumps for the 13B's.  Since I've got a friend of mine's engine
torn down and am in the midst of performing modifications, I was wondering
if
any of ya'll could refresh my memory as to what some of those mods were to
the water pump and for what reasons, please.

Thanks,

B

Mainly to lower the pump but to improve the flow out of the
block as well. There is no need for a restrictor. The block and 
rad is restrictor enough. The down side for car use is the thermostat
is eliminated. That function is assumed to be taken over by
the cowl flaps.

Paul Lamar
 
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