> Quantizing heat exchangers (radiators).
    > Klaus Savier and another guy Rick (something?) here at SZP came
   up with
    > this idea on how to quantize one of the many characteristics of
    > radiators.
    > It uses a shop vac and a water manometer to measure the porosity of a
    > heat
    > exchanger. Porosity is a measure of how easy it is for air to flow
    > through
    > the core. Very simple. Up until now we had no way of comparing one
    > core with another in this regard. When you talked to a radiator
    > manufacture they were unable to put numbers on the characteristics
    > of the radiators they sold. "Well it worked for Dale Earnhart".
    >


   Hi Paul,
   this sounds like a variation of the 'Leaf blower and Wind meter' method
   that Don Dunbar used to design his Mustang 2 radiator.
     BR, Dave McC

   Sounds like it but it is fundamentally different. We are just comparing
   relative porosity of different rads.

   Here is the data.
   The shop vac by itself had a pressure drop through the system of 5.5
   inches of
   water.


   The Mazda 2nd gen oil cooler was  11" above the basic 5.5".

   The Mazda stock 2nd gen turbo rad with two rows of tubes was 5" above.

   A Ford econo car single row rad was 9.5" above. Surprisingly! Wider
   tubes than
   the Mazda.

   The pulsar rad really just a heater core was 7" above.


   Paul Lamar ...No rotor no motor.



Sheesh.. Wearing shorts in January..


Paul Lamar ...No rotor no motor.

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