Jerry Hey wrote:

 Anyone have any experience or thoughts about the Oil coolers offered
 by Griffin that are built into the radiator.  Apparently an oil
 reservoir is added to the tanks and some of the radiator tubes are
 dedicated to oil.  Tried to get hold of Griffin but they are not open
 on weekends. If adequate, these would really clean up my installation
 with both the radiator and the oil cooler in the fuselage.   Jerry

I would not mess with them Jerry. Probably not enough cooling capacity >for the
rotary. Fully one third of the rotaries cooling is done by the oil.
Besides, Griffin is the outfit that supplied Chuck Harbert with an oil cooler
that split and caused an in flight fire. The box it came in looked like
Chinese card board to me. The stock Mazda RX7 oil cooler is a very fine piece
of work and works great on a NA 13B  when plumbed with AN line.

Paul Lamar

Thanks,  Could you give me the diminsions of the RX7 oil cooler? -Jerry

You would have to ask me that. Mine is up at the hangar. Anybody got
one lying around?

Paul Lamar

Mark Steitle wrote:

Anyone know where I could purchase a stock Mazda turbo 20b oil cooler.  Or, if the 93-95 REW oil cooler is the same size, or larger, and if it would be an acceptable alternative to using a 20b unit?

I don't think the stock 93-95 13B REW oil cooler would be up to 300 to 350 HP Mark.
Heck two of them were optional. Try a Setrabe. Tracy is trying an evaporator 
core out of Lors Toyota on his 20B. It is a finely made piece of work.
Picture below. 

Remains to be seen however if enough air will go through
it at 100 mph takeoff and climb speed (0.2 PSI and thats IF your inlet 
and exit duct are perfect!). Tracy likes to say it makes no difference 
living in Florida but he does not have 11,000 foot mountains 
in his back yard :-)

Paul Lamar

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