So I finally implemented version 1.0 of my seat heat reduction. I originally ordered an 8" Derale radiator fan, then I ordered a 5" version of it just to see if it might be enough. I have temporarily wired it in as I will be adding the second battery, isolator, fuse block later this fall when it cools off (too damn hot out in the shop right now). Anyway, first half of August my wife and I will be headed to our cabin in western Colorado, we'll ride 200-300 miles during that time at altitudes of from 8,000-11,000 ft. So we should have an idea of how well it works. Testing around the neighborhood in our 100 degree heat this week I can already tell a difference.
This is the fan I currently have installed:
Derale 16105 5" Diameter H.O. Extreme Electric Fan
Buy Derale 16105 5" Diameter H.O. Extreme Electric Fan , Black: Fans - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
www.amazon.com
It's 315 CFM, pointed directly at the exhaust manifold. This is a puller fan rated at 3.6 amps.
Here's a picture and a couple of videos, one with just the fan running and the seat and insulation up - then with the engine running I turn the fan on/off - it's barely noticeable. I do have the DEI insulation package installed under the seat, P1000-3.
View attachment 345186
fan with opened up seat:
Fan with seat closed and engine running: