charles.harbert wrote:

BTW, my third gen (94 car) has been running 215-220F water temp and 190-195
oil temp on 99F OAT  on the highway at 70 mph with the ac on (turns on the
aux radiator fans to 'high")  at sea level.  As the OAT goes up so does the
water temp. Delta T up at altitude should help that in the aircraft use. Just
for your information. Wonder how much that intercooler really does in that
compartment-bet it is not much!
Marc Wiese 20B in something this way comes.....

Marc, if you getting those temps at 70 mph when the engine is loafing along (>
100 hp), imagine how much additional heat a turbo 20B will make puting out
250+hp continuosly. Then imagine a climbout at 100F with low flow due to climb
speed. I decided not to put in the intercooler because I'm hoping that the cool
air above 10K' will bring the boost temp down to a reasonable number. We'll see.

Mazda's make huge heat, so make sure you have enough oil and water cooling.
Figure about 11F/psi of boost subtracted from OAT. Also, thin air at altitude
doesn't cool like thick air at sea level. An intercooler will definitely help
especially under boost.

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