Air Curtain - Page 5 - Fuel Economy, Hypermiling, EcoModding News and Forum

stimpsonjcat · 09-15-2011, 08:17 PM

Interesting!

Maybe instead of covering over the fog light dimples on my Versa I will cut them out and duct them to the wheel-wells. If it doesn't help I can always seal them off again.

/need to stay focused on mirror mods for now!/

dremd · 09-15-2011, 10:34 PM

Oddly enough, I already have such a duct on the passengers front wheel of my tdi (not on drivers side) for intercooler airflow.

Would be easy to do a comparison side to side.

Can anybody think of a way to tuft test this? I can easily stick my Go Pro to the door/ fender and monitor the tufts, but I have no idea how to mount them.

HighMPG · 09-15-2011, 11:11 PM

I would just mount them around the front and back of the fender lip and a few rows behind the wheel opening. Hot glue and yarn?

dremd · 09-15-2011, 11:14 PM

Blue painters tape and yarn would be my choice, I'm sure hot glue would work.

Not sure how much data that will give, but I'll give it a shot as soon as I can expect a week or so.

HighMPG · 09-15-2011, 11:15 PM

Would love to see your results.

dremd · 09-15-2011, 11:16 PM

Me 2!

autogyro · 09-16-2011, 06:33 PM

Quote:

Originally Posted by dremd

Oddly enough, I already have such a duct on the passengers front wheel of my tdi (not on drivers side) for intercooler airflow.

Would be easy to do a comparison side to side.

Can anybody think of a way to tuft test this? I can easily stick my Go Pro to the door/ fender and monitor the tufts, but I have no idea how to mount them.

I'd put them just aft of the wheel cutouts particularly near the top. I posted some links today on the "Performance Wheel Covers" thread that show studies that demonstrate this .
I've been thinking about using High-Tack Glue Dots from U-Line. They're real sticky but peel right off with a fingernail. very strong in shear. You'd be amazed what they hold.

dremd · 09-17-2011, 02:56 PM

"testing" complete
Uploading Data Now, be advised that I'm on 3 meg DSL over a 1/2 mile WiFi bridge, so my upstream isn't all that great.

Arragonis · 09-17-2011, 04:04 PM

Quote:

Originally Posted by dremd

"testing" complete
Uploading Data Now, be advised that I'm on 3 meg DSL over a 1/2 mile WiFi bridge, so my upstream isn't all that great.

Fast enough to post whilst uploading though

mcrews · 09-17-2011, 04:08 PM

Quote:

Originally Posted by Arragonis

Fast enough to post whilst uploading though

i was thinking the exact same thing!!!!

And I looked back in the post to see if there was some expectation of results at a specific time........"in a week' (2 days ago)

maybe it's a really BIG file