interesting fact on utes

vidler · Post by **vidler** » Thu Feb 28, 2008 1:37 pm

this might only help with the people who have brumbys, but i found out the other day that driving with the tailgate down/not there, will use more fuel than with it up (if you havent got a cover)

reason being that with it down, it allows the air stream to drop down behind the window and flow over the back, this creates more down force, where as if it were up, it creates a bubble of vacuum in the tray and the air travels over the top, less drag and less down force.

apparently thats what those fins on the roof of all the lancer evo's do, create turbulence and form a bubble of vacuum behind the window to direct air better.

weird hey... can any one tell im bored?

Bumpty · Post by **Bumpty** » Thu Feb 28, 2008 1:42 pm

Make sense though, I think...

Whos bored? Me?

Suby Roo · Post by **Suby Roo** » Thu Feb 28, 2008 1:45 pm

I saw those little fin things on ebay. "Apparently" gives you better fuel economy and a slight increase in power.

I think they did that test on mythbusters too..

they found that if you got a little net thing and took the tail gate right off they got better fuel economy than anything else.

Wilbur · Post by **Wilbur** » Thu Feb 28, 2008 1:51 pm

True. Also why they sometimes drop the tailgate (or not have one) for drag racing.

Lapsed · Post by **Lapsed** » Thu Feb 28, 2008 2:07 pm

Mythbusters did a segment on this i think (if my memory is correct) that if you remove the tailgate and put a web replacement on instead, gets better fuel ecomomy.

Suby Roo · Post by **Suby Roo** » Thu Feb 28, 2008 2:10 pm

Lapsed wrote:Mythbusters did a segment on this i think (if my memory is correct) that if you remove the tailgate and put a web replacement on instead, gets better fuel ecomomy.

Thats what i was trying to say. You put it in better wording. Thanks

SuBaRiNo · Post by **SuBaRiNo** » Thu Feb 28, 2008 6:55 pm

Yeah i sore the thing on Myth Busters on that too.. I think i have the episode on my computer some place.

Dave

vidler · Post by **vidler** » Thu Feb 28, 2008 7:55 pm

i call illegal downloading:) haha