Good Sam Club Open Roads Forum: Truck Campers: Yet another Air Dam/Spoiler/Airfoil thingy
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 > Yet another Air Dam/Spoiler/Airfoil thingy

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MikeJinCO

Salida, CO

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Joined: 02/23/2007

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Posted: 05/17/22 06:34am Link  |  Quote  |  Print  |  Notify Moderator

This is always an interesting experiment and with the current price of fuel important. I added my deflector last November that was made from fiberglass panels around Sleepy's ideas. We did not notice a noise reduction, but then I have read that one has a very short memory span for noise, and our firsts trips were around Phoenix rather than on the highway. Last weekend I got in a fuel test going from home at 8300' over two low passes and down to about 5000' east of Denver and then back. A trip of about 160 miles each way. I had the cruise set at 60mph both ways and of course take it off climbing the passes. Result was 13.3mpg as compared to my long term typical 11.7 at an normal 62mph. I regard that as a great change. Rig ismy 2006 Duramax with monstrous Host Mammoth.

MikeJinCO

Salida, CO

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Posted: 05/19/22 05:45am Link  |  Quote  |  Print  |  Notify Moderator

Took the camper off yesterday. NO BUGS first time ever.

HMS Beagle

Napa, California

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Joined: 08/22/2003

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Posted: 06/26/22 03:19pm Link  |  Quote  |  Print  |  Notify Moderator

Another update on mine. Stiffening the lip eliminated the folding back. For the last trip (only 350 miles but in bug country) I cleaned the camper bulkhead and overhang. No bugs on the bulkhead except right outboard. No bugs on the overhang except in a pattern near the edges of the valence. Still haven't noticed a marked difference in mileage, headwind/tailwind makes far more difference than anything. I think the noise reduction is real.


Bigfoot 10.4E, 2015 F350 6.7L DRW 2WD, Autoflex Ultra Air Ride rear suspension, Hellwig Bigwig sway bars front and rear

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