wmoguy what pump are you using to return the oil back to your engine? i am using a turbo werx oil exa - scavange pump. best one on the market imo. you mounted your turbo in the same location i did. works great, and as far as a oil cooler i doubt youll need one, just the oil lines alone cool the oil about 25*C if i remember correctly.ive got my eng oil temp sending unit is in my oil pan and it made the world of difference with just the lines to and from the turbo. i used 1/4" preasure to the turbo and for the return oil line i used 3/8" and i havent had trouble yet.
I"m going to try and use the Mechanical Fuel pump for starters and see if that will work well. I actually am going to use the Turbowerx Scavenger pump as my fuel pump (their base model pump) since I use WMO cocktails.
Can you tell me where you returned the oil back to the engine and how you did it?