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Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

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Old 11-02-2007, 04:51 PM   #71
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on the way up my IAT was reading at 100 - 110. today it was 80 - 85. it rained the whole trip.

3. lower iat means more dense oxygen input. requiring proportionatly more fuel to maintian programmed air/fuel ratio
Maybe set up a warm air intake for winter? ...of course in winter you almost have to max out any heat you can find to see much gain.
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Old 11-03-2007, 10:08 AM   #72
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How to apply airtabs to a hood and why:

http://www.airtab.com/bugs.htm
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Old 11-05-2007, 03:02 PM   #73
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Do these work on normal cars or only on semis and trucks?
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Old 11-05-2007, 03:30 PM   #74
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Get a single AirTab and fill it with Bondo and add the Bondo molded AirTab to the body - repeat - prime - paint!
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Old 11-06-2007, 04:59 AM   #75
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You could make a mold and make them yourself....IF you could find a material to cast with that didn't cost so much...have you priced Bondo lately?

Maybe adobe mud might be cost effective?

I've made and applied some alum vgs (airtab distant cousins) and will post pics and the patterns when I'm done.
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Old 11-06-2007, 06:51 AM   #76
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Do these work on normal cars or only on semis and trucks?
You'll be hard pressed to find empirical evidence showing fuel saving capabilities on passenger vehicles.

You will find lots of anectodal claims based on non-scientific observations made by people who have already paid money for them.
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Old 11-06-2007, 06:57 AM   #77
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Now, speaking from something I saw at the San Francisco Maker Faire....

Look at the tail end dimples

Agreed - looks neat.

But look at the aft side of the front wheel arch. They've got dimples there too, where they would be utterly useless.

So they're either (a) blindly throwing aerodynamic darts, hoping some of them work; or, (b) doing it for the "neat-o" factor.
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Old 11-06-2007, 07:32 AM   #78
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So they're either (a) blindly throwing aerodynamic darts, hoping some of them work; or, (b) doing it for the "neat-o" factor.
I'm betting on the "neat-o" factor...

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You'll be hard pressed to find empirical evidence showing fuel saving capabilities on passenger vehicles.
I tend to agree.... But I stand by my previous comments - that the concept is sound. The implementation, of course, is where things become questionable - so far, we can be certain nature is the closest to a good implementation I will hopefully have some CFD in the next few weeks to bring some non real world data to the table
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Old 11-06-2007, 07:52 AM   #79
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I'm of the same opinion.

I've said before: I've got a box of Airtabs myself. I CAN say conclusively they do NOT save any fuel sitting in the basement

I decided they were worth investigating more last year, and had intended to to test them to the best of my abilities in the real world this summer ... but got pre-occupied by the ForkenSwift.

So they're still on the list.
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Old 11-06-2007, 11:11 AM   #80
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But, tennis ball fuzz has a very similar purpose to golf ball dimples... While not as effective, there was a clear benefit over a "fuzzless" ball

Anyone up for covering their car in some low pile carpet?


^^Maybe they weren't so dumb afterall?
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