Spi D
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Made this for a friend and thought somebody here might find it useful:
Based on 'Brake Specific Fuel Consumption' (BSFC) it is possible to calculate the fuel needed to produce a given number of HP. Manufacturers commonly give figures as Grams per kW per hour, so by knowing this and factoring in the mass of fuel & convertion to HP, you get the calculated consumption. As accurate as it gets with unknown factors as fuel temperature that affects the mass, but still..
The HP you actually demand of course is up to your own guess.
The linked spreadsheet does it, feel free to get & use. You can enter desired HP and manufacturer BSFC if available - the data already there is based on known averages for modern engines (turbo diesel and well tuned petrol engines).
www.spidybot.com/FuelConsumption.xls
Based on 'Brake Specific Fuel Consumption' (BSFC) it is possible to calculate the fuel needed to produce a given number of HP. Manufacturers commonly give figures as Grams per kW per hour, so by knowing this and factoring in the mass of fuel & convertion to HP, you get the calculated consumption. As accurate as it gets with unknown factors as fuel temperature that affects the mass, but still..
The HP you actually demand of course is up to your own guess.
The linked spreadsheet does it, feel free to get & use. You can enter desired HP and manufacturer BSFC if available - the data already there is based on known averages for modern engines (turbo diesel and well tuned petrol engines).
www.spidybot.com/FuelConsumption.xls
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