It basically states that inclining a radiator from 0 deg to 20-30 deg will dec   rease 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

Hi Ed,

That is pretty interesting.  Now that I think of it, we've had a few people using extreme angles either blow, or beside the engine.  Have any of those people had cooling issues?

Cheers,
Rusty (watching a near-blizzard outside)