Are these a drag, or what? - Page 2 - Fuel Economy, Hypermiling, EcoModding News and Forum

COcyclist · 03-21-2011, 06:48 PM

Don't forget that splash guards that are part of a boat tailed fairing for the back of the tires can reduce drag. I have been meaning to build fairings from my splash guards but I took them off completely when I changed back to summer tires yesterday as a test. I have to see if the help my Golf as much as they helped NachRitter's Jetta. They WILL go back on with the winter tires before next frozen muckcicle season.

Arragonis · 03-21-2011, 06:51 PM

B2B I have issues with gravel stuff and this will be great to sort it. So Thanks.

gone-ot · 03-21-2011, 08:40 PM

...IN FRONT = good drag (more gains than losses)

...BEHIND = bad drag (far more losses than any gains)

California98Civic · 03-23-2011, 06:55 PM

Ooops. I took the front off and am planning to remove the back. Why is the front "good"?

Edit: wait, I get it, now.

gone-ot · 03-23-2011, 10:04 PM

...air dams or flaps in front of the tires are also called "spats" and they act like an air "diverter" to "part" the air before it makes contact with the tire and also to direct the air around the tire.

...behind the tires they're variously called flaps, fairings, etc., and they act like a tail-fin to smooth the airs' convergance back to normal pressure and movement behind the tire (a smooth "wake").

Joenavy85 · 03-23-2011, 10:36 PM

Quote:

Originally Posted by California98Civic

Ooops. I took the front off and am planning to remove the back. Why is the front "good"?

just so there is no confusion, that is referring to being in front of the tires, regardless of which tire it is. not referring to the "mudflaps" behind the front tires. a parachute is a parachute no matter where you attach it