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.

Does anyone have any data on this idea? I have been thinking about how to get better performance from my headlights and figure mounting them higher should make down range better. My first thought was to put them towards the top of the windshield using a sun visor style mount. I am not hoping to decrease drag as much as I am hoping to preserve what I have.

Is this a case of have your cake and eat it too?

Having the lights above the sight-line is helpful when cresting ridges.

An example would be the 'laser light bar' on the Tesla Cybertruck.

And causes oncoming drivers to want to beat you with a 2X4.

My roofline is only a little bit taller than the stock headlight location of the headlights on my van. Cars around here are rare nowadays. It seems like 90% of headlights from oncoming traffic are about eye level with my car because of this.

headlight elevation
 

Current headlight positioning might have to do with fog.Forty years ago,motorists were adding amber fog-lights under the bumper,to get the light source as low as possible,below some ground-level fog.Low-beam was recommended,so as not to blind the driver with their own lights reflected off the ground level clouds.This may be some obscure DOT requirement,rarely,if ever mentioned.Just a thought.

https://ecomodder.com/forum/member-f...headlights.jpg

This was my favorite headlight setup. You could slouch down in the driver eat and use the headlight like a laser pointer. I think this was before I converted to quartz-halogens in the 1980s.

I would think that a light over the windshield on low beam would put less light in oncoming driver's eyes. Especially with Hella H-4s with their sharp cut-off.