mileage computer for a carbureted engine

[diesel_john]

very interesting Omegaman I would like to see how that paddle wheel flow sensor is made. Anyone have a pic?

[Old Tele man]

HINT -- lookup the patents for Gilbarco and other gas-pump devices and see how they "measure" gasoline flow for the gas-station pumps...maybe an old gas pump unit could be retro-fitted in-line to the carburetor?

[dcb]

lol, I think archimedes did that first, not exactly a paddlewheel though.

but, these restrictions, it sounds like a simple pressure set up, like a simple manometer and a bead in the fuel line for a reading fuel flow on a pressurized line. Would fuel line and return line signals on two sides of a manometer cancel out the return line and leave the consumed fuel rate, on a graduated tube ? Sorry if this is a dumb question.