windshield visor, but drag reduction?
 

I for some reason have it in my head that I want to combine a cowl visor and a sun visor to attempt an effective windshield angle reduction without the whole cut, weld, re-glue hassle of actually moving the windshield.

Maybe something like this http://www.sarona.com/media/images/4..._93_94_95_.jpg with an open top?


This would be on my w126 mercedes, not a full size van fwiw. My hood is longer which in my head would give me more room to work that angle modification.

aerohead uses a cowl deflector. Here's an early version:

https://ecomodder.com/forum/member-a...od-blister.jpg

I suspect the visor is a[n air] trap. Possibly a Gurney flap at the top of the windshield would suffice.

If you really want an outside sun visor, you could do a sun visor doubling as a big turning vane to keep the air from overshooting the windshield/roof line

Something like this, turned on its side, all along the top of the windshield, trying not to increase frontal area too much

https://www.hyundai.com/content/dam/...s-original.jpg

Isn't that like the proposed spoiler for CUVs?

While I've been thinking about this I converted an outboard engine cover into a hood blister. The thought was to modify the airflow toward my exhaust stack; now I'm thinking a sun visor with plexiglass between the two will effectively change the windshield angle. I'm slightly worried about being pulled over, but I think I should be able to make it pretty readily removable.

Needs pix.

https://ecomodder.com/forum/member-f...how-sketch.jpg

My VLVW design has a three-piece windscreen over the original windshield. It may be drawn as a plastic bubble, but more likely would be perforated sheet steel with some of the web drilled out and a hatch like an armored car in the driver's sightline.

Or adapt it to pontiac firebird rear glass? ( but being it rear glass means you lose road-worthiness, at least here (but here it would be illegal anyway))

Too bad we can't put blinds inside the windshield

Now reverse it :D

https://ecomodder.com/forum/member-e...74-reverse.jpg

A trick of perspective, the other end looks like this:

https://ecomodder.com/forum/member-f...9-100-0629.jpg
https://ecomodder.com/forum/member-f...0-100-0632.jpg

The tail disappears.

Rear glass doesn't pass DOT standards for a windshield.