Hi Al;

            Just a couple of questions to clarify a couple of things… Are you still using a separate air/oil cooler as well, or did you convert the oil cooler to another coolant rad?

Yes, Todd; the oil coolers are connected in parallel. The rejection capacity of oil/water cooler I added is only about a third of the required total. I have two coolant rads in parallel as well.

 

 I’ve considered adding a small cooler like yours in addition to my 2 Evap cores (coolant) and Mazda oil cooler, just to “balance” out the heat. I always found that the oil temps lagged far behind the coolant temps (in both heating and cooling), so I felt it may add some value to making temps more stable.

I think coupling of the two systems is a good idea, although certainly not required.  If everything works out right you probably save a few pounds just going with oil to air.

 

            It seems to have worked very well for you. You’re using a turbo on that 20B as well aren’t you?

No turbo.  I decided the 20B had plenty of power as NA for my application.

 

Best,

 

Al