Vortex Generators / Hmmm Airtabs

[zpiloto]

Originally Posted by tomauto

I like. If you were to sell a couple of those vortex generators to a fellow gassaver for his roofline, what would you charge him?

I don't have any left to sell. I have 2 left over and I would just give them to you if I had a bunch extra any way. If you want PM me your address and I can send you the paper pattern I used to make them. Just copy the pattern on to cardboard(for durability) then use the carboard cutout to copy on to the aluminium. Then cut out the pattern and bend with a pair of plyers. The whole shooting match was less then ten bucks at Lowes or Home Depot and took about 3 hours to make 45 of them. The aluminum was $6.00 for a ten foot roll and the 2 sided tape was under $5.00.

I know it may be some trouble to try the test again, but your vortex generators might be too close to the trailing edge to be of benefit. On plane wings, the generators are closer to the front of the wing, to keep the air attached over the surface of the wing. You might want to try moving them forward a few inches, and see if there is any difference.

I don't think I'll test them again. It a pretty small gain. With such a small amount of data it really a toss up that they help at all on this car. The roofline is where they have them on the new cars and my cars rear end is rounded on the top and the sides so not much help there.