11-04-2012, 12:02 PM
I've purchased a flat plate heat exchanger (fphe) normally used for central heating. They are a very efficient way of transfering heat due to the counter current flow system that is employed. Will probably impose quite a restriction but a few other little tweaks should help.
Dturbo GT2259s build thread;
http://306oc.co.uk/forum/thread-3692.html
Daily driver; 330d Msport (doesn't blow up!)