[dfink]

Went back to some of the earlier posts on this and you get the typical back and forth arguments. One question is the cfm mentioned the amount the fan puts out or is it the amount the engine needs. On a normal 3.2 engine you have generally two heat ducts that allow air to escape. This air goes away from the motor either to the heater or out the dumps. On my engine I have no heat tubes and so all the air is forced to go someplace. At a certain RPM I don't recall exactly right now but there is so much air being produced by the fan that is starts to blow right back out the fan itseld. Makes me think I can save a few HP by not blowing so much air. It is also likely that given some proper ducting that a car in motion would likely produce enough airflow to cool itself. Now if you are going to hook a fan to a belt and that fan must produce enough air to cool the engine at idle speeds. Well it is still hooked up at 7000rpm and has to be pushing more air than heat can ever transfer to. So it seems a fan that is adequately sized for low speed and idle should be enough provided adequate ducting is provided for the higher speed stuff.
So the reason for the original thought of placing thermocouples in the fins as multiple reading could be obtained. Perhaps reverse flow the air and pull it up and out the back where it doesn't get trapped. Wouldn't work well for heaters but should work for cooling the engine. A couple of scoops on the side perhaps. What the heck it's a big motorcycle engine put a big underbelly scoop on and open the top completely removing the shroud let the air go out the deck lid.
I have a box missing two ends. Thoughts tend to excape from one end, money never accumulates due to the other end.