| Author | Message | ||
     Shea |
Noticed the other night when I got home from a quick test run during my exhaust journey, I took the seat off and found the fan blowing away from the engine. I always thought the fan would be blowing ONTO the engine, not away. Why is this? | ||
| Diablobrian |
So that it is not fighting/obstructing natural circulation of the air when the bike is in motion. | ||
| Shea |
Oh, then why would they not put the fan in front of the engine and have it blow over it? | ||
| Diablobrian |
Could it be that moving the air through an obstructed area (between the motor and frame) is kind of like either pushing, or pulling a piece of rope up hill. It's far easier, and more efficient, to pull it than it is to push it through. | ||
| Interest |
Having the fan in the front of the motor would only cool the front cyl. | ||
| Blake |
Air doesn't care if it is sucked or blown; the efficiency is no different. | ||
| Jayvee |
The fan in your car is only needed at idle, or stop and go (very slow) speeds. Notice it is BEHIND the radiator, pulling air. I've never even heard of any other relation between the fan and the radiator in a car. (I'm sure somebody out there knows of one...) | ||
| Stretch67 |
You can reverse the blade pitch on bulldozers, effectively reversing air flow without reversing fan rotation. Pushing air from the engine toward the front keeps the operator from getting covered with the dust blown up by fan. This little jewel has been brought to you free of charge.  |
