DIY Forced Cooled Air for Helmet

#1

http://www.Gress.org/Home/Cars/TrackTales/DIY/HelmetBlower/HelmetBlower.htm

Another project that poked along during serial engine swaps over the past couple months.

#2

I tested it last night. Got 7deg of cooling at moderate fan levels. Less cooling with higher fan levels. I figure that when it’s really hot out I’ll get another degree of cooling due to the efficiencies of bigger temp deltas. And the windchill factor will make it feel a bit more significant then 8deg.

That being said, it was a lot of work for 8deg. This was no slam dunk.