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Old 06-14-2010, 11:19 AM   #14 (permalink)
TheEnemy
The road not so traveled
 
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Join Date: Jan 2010
Location: New Mexico
Posts: 680

The Truck - '99 Nissan Frontier xe
90 day: 25.74 mpg (US)

The Ugly Duck - '84 Jeep CJ7 Rock crawler
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Thanks Aero, I have tried looking for it but without any luck, I think I understand what you are talking about now.

We had some good winds on Friday gusts 25-30mph, so I took it out to an open area and used a stick with a plastic streamer on the end of it to do some "wind tunnel" testing. Saturday was better, gusts 50-60mph but I didn't get a chance.

The air going over the hood was pretty stable, up until it got close to the windshield, then it kind of stalled, or bounced arround (left right or up).

The air over the top of the windshield was only deflected up by about 6 inches and had huge amounts of turbulance. Edit to add: A bug deflector would probably have to be huge to be effective, and ruin the flow over the hood.

I don't remember what it did on the sides of the windshield.

At the doors the airflow was slightly down.

In front of the rear tires the air flowed up at about a 45deg angle, then into the back seat and forwards between the front seats.

Airflow on the back/behind the rear tires was pretty unsteady, but what there was looked turbulent.

There appeard to be lots of flow going into the radiator, makes me wonder why it runs hot.

Last edited by TheEnemy; 06-14-2010 at 11:29 AM..
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