X-Mozilla-Keys:                                                                                 
Rodger Hilyard wrote:

Paul wrote:
I thought I had this info around somewhere. In the Haynes 79-85
manual page 50 the pump is specified to have 150 to 160 liters  per
minute or about 37 GPM at 6500 RPM and not 13 GPM as Rodger
thought. This is for the 12A engine.
 ---------------------------------------

The real early RX2, RX3 and R100 engines were specified
at 233 to 254 U.S. pints per minute or about
29 to 32 gallons per minute  at two pints per quart and
four quarts per gallon?

No RPM given in Bill Carrols Rotary Engine Manual
published in 1972.
------------------------------------------

Once I know where to look I find a bunch.
The 1975 13B Cosmo workshop manual specifies 150 to 160
liters per min or 39 to 42 US gallons per minute
with a pulley ratio of 1:1.18..  At 6500 RPM.
Looks like overdrive.
 ------------------------------------------

Thanks Paul.....
    I will  update my estimates, it makes sizing the radiator
different , i.e. 39 GPM requires a temp drop of only
13/39 x 61 deg F  or 20.3 deg F across the eng / radiator
which shortens each tube length, adds three times
the tubes, etc.
  With these higher flows, be careful with tubing / hose
sizing. Look at the Mazda in / out hose size and stay close
to those.
Rodger

 
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