-Finally, I could find another type of oil cooler, which would be closer to the size of the evap core.   In the old archives, Mike Wills mentioned Fluidyne.  I had one of their radiators in my FD, and it was very well built.  Here's a link to the oil cooler family I'm thinking about.  They look pretty good to me.  What do you think?   http://www.fluidyne.com/pl_theoc.html

 

Thanks,

Rusty (waiting for a giant estimate for replacing my dead heat pump)

 

 

Really liked the DB 30517 (3.75" thick double pass model)  Will probably use this one on my -8. 

 

Tracy