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Old 05-06-2010, 10:42 PM   #21 (permalink)
rmay635703
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Quote:
Originally Posted by Otto View Post
Well, that thing is not exactly laminar flow.

The GM motorhome appears to be reasonably well shaped, but one of the posters above reports it only got about 8 mpg, which is terrible. Surely, there is a good basic shape out there, suitable for improvement with undertray/pizza pans/wheel spats/air dam/reduced aero mirrors, etc..
Remember the motor in the GM motorhome when placed in another vehicle also typically got 8mpg towing or not.

Perhaps use it as a good rolling chassis and put a 6.2 diesel and a 6sp manual inside? It would be slow as mollasses but get better FE.

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