HFS
Well Known Member
Here is a picture of my "Huffer" - a blower system designed to evacuate hot stagnating air left in the plenum after shutdown.
I live in a very dry and hot climate, and it is not unusual to have hanger temps well above the century mark in the summer time. I wanted to be able to get rid of any stagnating air above the cylinders after shutdown, to facilitate overall increased cooling of the engine bay during that period.
When plugged in (right after shutdown), it's amazing how much hot air comes out of the exit area of the cowling. Even though I can only put in ambient temperature air, even when that air is 100* or more, it still acts as a heat sink for the stagnated air in the plenum which can reach over 200* after shutdown.
I have a mechanical timer on the power side, so it becomes a "set it and forget it" kind of system. Been using it (in some form) for 30 years + now, my cowling(s) still look to be in pretty good shape from a paint quality standpoint.
Just another point on the compass.
YMMV - And probably will!
HFS
Sorry about the orientation of the pic - maybe someone can help me with that also?
I live in a very dry and hot climate, and it is not unusual to have hanger temps well above the century mark in the summer time. I wanted to be able to get rid of any stagnating air above the cylinders after shutdown, to facilitate overall increased cooling of the engine bay during that period.
When plugged in (right after shutdown), it's amazing how much hot air comes out of the exit area of the cowling. Even though I can only put in ambient temperature air, even when that air is 100* or more, it still acts as a heat sink for the stagnated air in the plenum which can reach over 200* after shutdown.
I have a mechanical timer on the power side, so it becomes a "set it and forget it" kind of system. Been using it (in some form) for 30 years + now, my cowling(s) still look to be in pretty good shape from a paint quality standpoint.
Just another point on the compass.
YMMV - And probably will!
HFS
Sorry about the orientation of the pic - maybe someone can help me with that also?