hmmmmm.....

Sounds like you just need to know the maximum fuel flow for the engine. If you can find the maximum delivery of the injector you can calculate the maximum fuel flow by multiplying the number of cylinders times the rpm divided by two.

From there you can divide the drive shaft rpm by the fuel flow rate and scale it to get your fuel consumption.

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green 85 300SD 200K miles "Das Schlepper Frog" With a OM603 TBO360 turbo ( To be intercooled someday )( Kalifornistani emissons )
white 79 300SD 200K'ish miles "Farfegnugen" (RIP - cracked crank)
desert storm primer 63 T-bird "The Undead" (long term hibernation)

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