Ed Anderson wrote:

Here is an extract out of an article on race car cooling that is very interesting about use of inclined radiators.  Unfortunately, I could not find any reference as to where this information was derived from - but, if correct, is fairly significant.
 It basically states that inclining a radiator from 0 deg to 20-30 deg will decrease cooling and increase drag - not terribly surprising, however, the article continues saying that at approx. 55 dig of inclination the cooling effectiveness is 30% greater than a radiator with no inclination and the drag is 20% less!!!  Now I found that surprising - but, then air flow does take surprising twists (no pun intended).
 While I find that claim very interesting - I have not found any collaborating documents.  But, thought the group might find it interesting
 For your information
 Ed

I learned a long time ago (Maybe it was Mr. Wizard & blocks sliding down a ramp...??) that with physics, what looks right or sounds right probably isn't.

But this one looks like a trick question. Notice the mention of 'larger radiator'? Perhaps the original inlet vs. core density wasn't set up correctly & they were trying to force too much air through the core. When they tilted the radiator, they apparently also made it bigger, meaning more fin area *and* more open area for the same inlet/outlet areas.

But like I said, what sounds right, rarely is, if it's me doing the listening...

Charlie

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