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Old 03-12-2016, 02:09 PM   #38 (permalink)
aerohead
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27% fe

Quote:
Originally Posted by gumby79 View Post
Was hopeful that my body type and year range could have its Cd info populated the newer dodge is available in 1:10 '73-'93 body I have only ben able to find in 1:43.
In one ofvhis videos he was able to 3D print a model that was not available.
Can anyone find the stock. Cd. CdA ect. Ect. For a '91 dodge D250. Sorhat I can so my % gain on Cd from down hill cost down testing mpgs show 27% FE improvement =54% improvement in drag reduction
What do you guys/gals think??
Hucho shows a different CdA/MPG relationship for Diesels compared to gasoline vehicles.I don't have his book with me.Perhaps a member can help us out on this one.
These relationships are predicated upon steady-state highway cruise mpg,not coasting or coastdowns.
Also,we have no idea what the engines BSFC is doing with the modifications,and all the relationships presume a constant BSFC,or gear-matching to achieve a constant BSFC which may not reflect reality.
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