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  1. gpara

    Volumetric efficiency calculation

    Can someone give me a volumetric efficiency formula to calculate the cubic feet per minute volume of and engine at a given RPM???
  2. gpara

    Hydrogen generator, a failure as you guys said

    OK on board hydrogen generator, from water, fully tested and a glowing failure. Advertised volume was 1 liter/minute, tested at 17 and 15 amp draw it would only produce 1 liter every 2 minutes 15 seconds, 1/2 the spec volume. Anything beyond would boil water in generator. 17-18 amps for several...
  3. gpara

    Hydrogen/ oxygen added thru electrolisys, on board generator

    I have found several hydrogen generators, by electrolysis, for sale, has anyone tried any of these devices???? I am looking at a unit that produces 1L/minute at 15 amp draw. They are claiming 20% min. fuel economy increase. I have ahd a chemist friend run the numbers and he says that they indeed...
  4. gpara

    List of Coefficient of Rolling Friction for name brand tires???

    I am having a hard time finding any information on the rolling resistance of car tires. I am working toward increased fuel economy but the manufacturers will not answer the questions I am asking, namely what is the CRF (coefficient of Rolling resistance) of certain size tires they manufacture...

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