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Piwoslaw · 08-29-2012, 04:02 PM

I'm willing to believe that VGs (or GasPods, or whatever you want to call them) may help in certain configurations, on certain cars. I'm also willing to believe that someone who knows something about both aerodynamics and A-B-A-B testing may be able to get an improvement. But unless s/he spends 8 hours per day at freeway speeds, it might not be worth the investment. The average driver who drives a block to the store 5 times a day is another story.

Reducing fuel consumption by 4% is almost believable, 19% is not. A Kammback is worth 5-10% on most cars, while a full boattail is 10-20%.

Oh, look, my horse has a VG on its forehead!

Should we park this in the U Corral? I'm not totally convinced since VG can help fuel economy, but the numbers (both FC reduction, and price) are outragous.

EDIT: Chaz got a better pic

08-29-2012, 04:02 PM	#8 (permalink)
Piwoslaw aero guerrilla Join Date: Oct 2008 Location: Warsaw, Poland Posts: 3,747 Svietlana II - '13 Peugeot 308SW e-HDI 6sp 90 day: 58.1 mpg (US) Thanks: 1,328 Thanked 749 Times in 476 Posts	I'm willing to believe that VGs (or GasPods, or whatever you want to call them) may help in certain configurations, on certain cars. I'm also willing to believe that someone who knows something about both aerodynamics and A-B-A-B testing may be able to get an improvement. But unless s/he spends 8 hours per day at freeway speeds, it might not be worth the investment. The average driver who drives a block to the store 5 times a day is another story. Reducing fuel consumption by 4% is almost believable, 19% is not. A Kammback is worth 5-10% on most cars, while a full boattail is 10-20%. Oh, look, my horse has a VG on its forehead! Should we park this in the U Corral? I'm not totally convinced since VG can help fuel economy, but the numbers (both FC reduction, and price) are outragous. EDIT: Chaz got a better pic __________________ e·co·mod·ding: the art of turning vehicles into what they should be What matters is where you're going, not how fast. "... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell [Old] Piwoslaw's Peugeot 307sw modding thread Last edited by Piwoslaw; 08-29-2012 at 04:07 PM..