Funny -
Welcome to EM! Another interesting way to look at W/HAI.
When I was doing my HAI I inserted an inline (PLASTIC) marine bilge fan rated at 5 Amps (about the power of one DRL ... Daytime Running Light) into the HAI tubing. I controlled it with a DC motor controller (Ramsey Electronics Kit) in order to control it's RPMs. The idea was to suck more hot air into the air intake.
I couldn't get it to work very well, because when I did get the temps up, I was in danger of melting the fan,
. If I ran it too fast, I think it "outran" the hot air and pulled in more unheated air. Also, when it was off, I think it acted as a constrictor. Finally, a screw came loose (No, in the fan mount, not my head,
) and I took it out.
If I were to try it again, I would use a "snail shaped" metal fan. With a DC motor controller and a metal "snail fan", you may be able to control the RPMs and modulate the IAT temp.
CarloSW2