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Old 07-22-2008, 04:59 AM   #11 (permalink)
justpassntime
What? THIS IS MY GOOD CAR
 
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Join Date: Jun 2008
Location: Eastern Washington
Posts: 285

The Japillac - '87 Honda Accord LXi Sedan
90 day: 31.77 mpg (US)

Ranchero GT - '73 Ford Ranchero GT

Spaz - '83 Chevy S10 4X4 Tahoe
90 day: 27.53 mpg (US)
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Quote:
Originally Posted by aerohead View Post
justpassntime,if you'll go to the top of the forum page,at ecomodder search,Advanced,and type in, mods-data-% change or Cd change ( installment # 5- roofline data ),that should get you some material to chew on.
I found it, THANKS!

Lots of good info. The good thing is that I haven't wasted my time, well not yet. As I found when I was making the caps or ends for my rear window spoiler, visor, defuser, etc. (too many to chose from what would be the proper nomenclature for this item), slight bends in the curvature of the metal change the angle drastically so it is somewhat adjustable.

So if my reading is correct (and correct me if I am wrong) as long as I stay with the curvature of the roof line and not exceed 15 degrees I should be ok.

Since this particular aerodynamic addition (hopefully) just basically snaps in place it should be easy to do testing. I suppose tuft test would be the best since a powder test would stick to the primered surface of the car.

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