I have known Tony's crew chief, 'Gonzo' for more years than
both of us want to remember, so when they landed there new 'bullit' from
the States with the instructions from the engine builder that it had too
run what I consider real cold for the whole run, he asked us too build a
radiator. This is what we built. 55mm thick, dual pass. It works a treat
with the water temp only varying a few degrees over the whole run.