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  1. alwieser

    Fuel Consumption Sensing

    for 1996 and newer OBD-II vehicles, check out ScanGauge-II http://www.scangauge.com/ easy to install (in fact portable) trip computer. Very entertaining.
  2. alwieser

    Throttle Body Design

    I've seen throttle bodies with venturi's and noted that the MAP taps into this area for a vacuum signal. I've always assumed the venturi was used to amplify the vacuum signal for the MAP. If this is the case, by using the original carb and keeping the venturi intact, you could tap into the...
  3. alwieser

    Gyroscopic coupling

    The couple involved is between the natural frequency of the axle/wheel assembly in tramp and the wheel/steering linkage in shimmy. When the design of the system results in bringing the natural frequency of these two motions into proximity, damping is critical in controlling the potential...
  4. alwieser

    acetone to increase fuel mileage

    On two other boards that I frequent, the buzz of the day is adding acetone to gasoline to increase fuel mileage. The suggested ratio is about 2oz. for every 10 gallson of gas. Most are claiming an increase of 2-3 MPG from a vehicle that typically gets 14-17 MPG; a pretty impressive increase. I...
  5. alwieser

    I need some theory on wheel wobble vs. ackerman

    SWAG #2 front wheels with a change in diameter and offset/backspacing from factory design move the intersection of the steering axis at the contact patch. This changes the scrub radius and creates a torque about the contact patch. Lateral loading of the chassis due to engine torque would result...

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