fae... just order a couple of these and you will be golden!

http://kalecoauto.com/index.php?main...products_id=37

 

That's silly. According to Dr. F. Porsche water cooling is unreliable. Air-cooled is the way to go. Just route the turbine intake with some cardboard around the aluminum exhaust manifold. Make sure to use two-ply cardboard.
Added benefit: The pre-heated intake air will increase turbine efficiency at least 4000%