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Old 04-06-2008, 04:50 PM   #5 (permalink)
fabrio.
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Join Date: Feb 2008
Location: Italy, Morbegno (SO)
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tigra AERO - '96 opel tigra
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ok, if I undertand correctly, you consider two equals veicles without the same engine.

Te answer can be find from one simulation.
Download excel attached.
In the section "input e calcoli" in orange the BSFC, in green fuel consuption in KmLiter, in "C" colum, the Cd coefficient.
You can change the Cd whit the same BSFC and read the changement in the Km/L
note, impact of Cd on Km/L it is consequence of speed.
Answer at your question, change in function of veicle speed.
I think that now, you have all answers.

bye
Attached Files
File Type: xls aero2.XLS (48.5 KB, 43 views)
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