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Old 02-11-2010, 01:29 PM   #1 (permalink)
ecowannabe
 
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"Aero" Beast (1989 Grand Wagoneer)

Hey all,
Loving the site so far for my escort.
But I have another love in my life that is basically a brick on wheels.
My 1989 Grand Wagoneer
She is gonna be my summer project, gonna swap a diesel and a 5 speed into her.
I am curious about working on the aerodynamics, but I know there is not much to work with. I am pretty confused on how to calculate the Cd of my vehicle.
And i was wondering if there is any kind of wind tunnel software I could use

thanks

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Old 02-11-2010, 01:50 PM   #2 (permalink)
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To calculate Cd, you need either a wind tunnel, or an investment of time in some coast-down testing.

See this instructable: Measure the drag coefficient of your car
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Old 02-11-2010, 07:38 PM   #3 (permalink)
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Quote:
Originally Posted by jmedia View Post
I am curious about working on the aerodynamics, but I know there is not much to work with.
Seems to me that the worse your starting position, the easier it is to make improvements...
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Old 02-11-2010, 07:42 PM   #4 (permalink)
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Quote:
Originally Posted by shovel View Post
Seems to me that the worse your starting position, the easier it is to make improvements...
Well then this should be REALLY easy cause i actually drive a brick on wheels

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Old 02-12-2010, 12:55 PM   #5 (permalink)
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New possible body lines for when I cut into the rig this summer?


sketched in the middle of thermodynamics class haha
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Old 02-13-2010, 12:45 AM   #6 (permalink)
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Your car of course, so do as you will... I never understood the obsession guys seem to have with cutting the back off a wagon to make it into a micro-pickup. I've seen dozens, maybe hundreds online and IRL, none of them look practical and most look cobbled up, few look finished.
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Old 02-13-2010, 01:14 AM   #7 (permalink)
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Well I was thinking of it from an aerodynamic standpoint
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Old 02-13-2010, 01:26 AM   #8 (permalink)
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Quote:
Originally Posted by jmedia View Post
Well I was thinking of it from an aerodynamic standpoint
Don't.
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Old 02-13-2010, 01:28 AM   #9 (permalink)
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Ha well um thanks?
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Old 02-13-2010, 02:20 AM   #10 (permalink)
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If you wanted to do it from an aero standpoint, you want to keep airflow attached for as long as possible to the smallest possible point. I've been reading WAY to many thread on here about it. There is TONs of GREAT information to be had from this site. Just don't ask, or they'll refer you to *gulp* BOOKS. (I personally hate books)

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