[Rebel1]

Jess, you're right and wrong...leastwise by way of an explanation given to me by a recognised radiator manufacturer.

He says....stick your hand out a car window with the palm horizon to the ground.

Then angle your hand either up or down......feel colder??

He claims the inefficient angled radiator idea is a left over from way back when we had cores with 5 or so tubes. The tubes were so close together that air had difficulty passing thru the cores and the air would roll over an angled radiator.

Seems the secret is that if the radiator is on an angle then make sure the air can get thru. He claims he has used single row 50mm dimpled tube, dual pass, radiators and kept 700hp cool in traffic.

anyways....we'll see.

Cheers