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-   -   my jeep's new aero mod (

johnpr 02-21-2008 01:46 PM

my jeep's new aero mod
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ok so i had a long trip last weekend and said to myself, "john, you drive a brick, lets see if we can't make it any more aerodynamic" i had already left the house and didnt have any tools with me so being the problem solver i am i found the nearest snow bank and proceeded to ram into it (ok not really ram but more of a drive into at 15mph) i came away from the snow bank with a giant block of snow sitting on my front bumper and spent a few minutes sculpting it. long story short i ended up wit a wedge shape ontop of my bumper, the next morning (after having already arrived at my destination) i was surprised at how much snow was left on my front bumper and thought some of you guys might get a kick out of it. honestly it helped my fuel mileage tremendously ( a trip which normally takes around a quarter of a tank only took a little over 1/8th so not bad. :thumbup: as you can see from the pictures the snow did wear down quite a bit so it wasn't consistent for the fuel savings.

now kind of along those same thoughts i have been considering making a new front bumper and grill guard that would be aerodynamically shaped and have a removable Plexiglas shield. any thoughts?


MetroMPG 02-21-2008 02:22 PM

That's funny. :)

You probably slightly improved the shape of the front of the Jeep, but more importantly you blocked a lot of unnecessary airflow through the grille - probably the biggest benefit.

Do you keep track of your fuel consumption tank by tank?

zjrog 02-21-2008 03:14 PM

More Jeeps?

MetroMPG 02-21-2008 03:16 PM

More Jeeps! You guys have to start doing your fuel logs. I want to know who's winning. :)

johnpr 02-21-2008 04:19 PM

in my 20 gallon tank i average 350 miles, that little aero mod didn't last a full tank so i cant give a full tank measurement :(

MetroMPG 02-21-2008 04:22 PM

What I was wondering was whether you keep a record of each fill up. Not for this mod specifically.

BrianAbington 02-21-2008 05:01 PM

maybe we can get a sticy thread for us to log our fill ups.

MetroMPG 02-21-2008 05:04 PM

That's what the garage & fuel log is for!

s2man 02-21-2008 05:35 PM


BrianAbington 02-21-2008 06:44 PM

well I am new here...sorry

DifferentPointofView 02-21-2008 08:32 PM

it's fine, seems that you've found it anyway. With my 23 gal tank I can average about 21, which equals about 480 miles per tank, but in the summer I can go over 500, but it's sadly not summer :(

MetroMPG 02-21-2008 08:34 PM


Originally Posted by Binger (Post 10872)
well I am new here...sorry

Don't worry about it. I was mostly teasing. :p

metroschultz 02-22-2008 12:24 PM

Every One Wins

Originally Posted by MetroMPG (Post 10833)
More Jeeps! You guys have to start doing your fuel logs. I want to know who's winning. :)

As fuel usage goes down, and Public awareness goes up, We (every human being) all win in the long run.
I'm in this for the long haul.
I know you were just pokin fun.
I'm just happy knowing I'm not the Lone Deranged-er any more.
btw My kids still think I'm insane.
You shoulda seen the look on each ones face the first time I shut down the engine while driving. Only my Grandson thought it was cool.
"It's so quiet Grampa, it's like were flyin in a kite"
Out of the mouths of babes.

johnpr 02-23-2008 01:17 AM

one of these days i will start my fuel log again but im sure that DPoV wins hands down, both of my jeeps are soft tops, have a decent amount of ground clearance and are modeled after bricks. so what im saying is: a brick with a kite attached doesnt move efficiently. hmmm, at least i recycle :P . anyhow on a more serious note, im thinking about making an electric 2 door off road vehicle with better aerodynamics (but many of the same features) similar to the jeep. main differences being sloped front end / and windshield and a fastback hard top.. any thoughts?? (ill have to post a picture of what im thinking one of these days with some more details)

brucepick 02-23-2008 10:42 AM

Very cool idea. Pun intended.
Take a look at my front panel pic at left. Similar idea.
Doesn't melt though.

Stock version is below:

johnpr 02-23-2008 11:05 AM

that looks great, im not in rambling mood today so no long incoherent post (yet lol)

Big Dave 02-23-2008 11:12 AM

Somebody should PhotoShop up a Jeep with the basjoos treatment.

DifferentPointofView 02-23-2008 01:21 PM

If anyone wants to use mine I wouldn't mind lol, cause I Don't have photoshop, I'd have to use paint or draw it myself.

aerohead 02-23-2008 01:44 PM

snow-bank aero-Jeep
I love it! And with some fruit flavoring,its edible too! My neighbor has a C-J,and it has a lot of gaps which allow air to go between the fenders and grille,and without an airdam,the air collides with the front tires,chassis,and suspension components.Quite a torture-chamber under there.And as Darin has pointed out,you probably managed to block some of that flow and get it to flow"outside"the jeep,where its got a clean shot to the rear.You might duplicate the effort with cardboard and duct tape.Also,if you could develop some curvature around and over the roof I think you'd see some additional benefit at the gas pump.The flat plate that the windshield is mounted to has a drag coefficient of 1.17,almost as high as that of a parachute.You'll notice that the Jeep Liberty has softened leading edges all over it's front end,and that really helps stretch it's fuel.Love the pictures,good luck on the project.

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