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Old 08-20-2014, 05:35 PM   #21 (permalink)
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30-degrees

GM's Aero 2000 'Epcot' car had an active rear valance/diffuser.In the video at Epcot Center,in the GM exhibit,you can see the rear panel lower to a more favorable angle when on the highway.
GM's the only company to my knowledge to do it so far.
It's worth knowing,as you get your 'RUBICON' drivabilty,and also some slick open road performance.
Here's a link
1982 GM Aero 2000 Concept Boldride.com - Pictures, Wallpapers

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Old 08-20-2014, 06:37 PM   #22 (permalink)
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Thanks for the link, that's awesome! Think how many folks could utilize that on SUV's and trucks that wander off the beaten path on the regular! Or for cars that encounter steep drive ways for that matter.

Quick question, on your design for the hitch mount... How did you secure it to the rear of the vehicle? Or did you simply intend to design it's footprint slightly smaller than the back of the vehicle so that air would "jump" any gap between vehicle and structure?

~C
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PS you could add hamsters inside for a 'bio-hybrid' drive.
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Old 08-21-2014, 04:44 PM   #23 (permalink)
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Originally Posted by chillsworld View Post
Thanks for the link, that's awesome! Think how many folks could utilize that on SUV's and trucks that wander off the beaten path on the regular! Or for cars that encounter steep drive ways for that matter.

Quick question, on your design for the hitch mount... How did you secure it to the rear of the vehicle? Or did you simply intend to design it's footprint slightly smaller than the back of the vehicle so that air would "jump" any gap between vehicle and structure?

~C
The premise of the design is that it integrates directly to the host vehicle as if it were an OEM organic extension.There's no gap.
The receiver carries the vertical load in cantilever,checks vertical displacement, while upper tension straps inhibit any longitudinal movement or 'roll.'
The tail on my CRX was built on the car and fit like a glove.It would be the same for SUVs,just a larger structure.



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Last edited by aerohead; 08-21-2014 at 06:24 PM.. Reason: add image
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Old 08-21-2014, 05:14 PM   #24 (permalink)
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My parents used to silk-screen magnetic stick-on car door signs. Cut sheets of the blank material into strips and use flush rivets to attach to the boattail. With some marginal grip around the whole perimeter it would help affix the tail to the vehicle. There might be ~1/8" step at the edge, a router should be able to chamfer that.

It might be tedious to peel and tape back each piece to release the -tail, but why would you want to do that?

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