Tuning
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Tuning

  1. #1
    Retired Air Force Master Sergeant's Avatar
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    Default Tuning

    I have a GPS gauge for top speed but how can I measure acceleration? Is there a device I could buy (within reason) to help?
    Last edited by Master Sergeant; 01-22-2012 at 07:12 AM.

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  3. #2
    Senior Member wildstreak's Avatar
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    Quote Originally Posted by Master Sergeant View Post
    I have a GPS gauge for top speed but how can I measure acceleration? Is there a device I could buy (within reason) to help?
    all data loggers have it built in, best way to do it cheap is go to a race and put it on the clocks. That takes all the guess work out

  4. #3
    jdf
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    Quote Originally Posted by wildstreak View Post
    all data loggers have it built in, best way to do it cheap is go to a race and put it on the clocks. That takes all the guess work out
    oh like what do u know abt this tally .......lol hes right tho

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  6. #4
    Highaboosta Unchained's Avatar
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    All you have to do is video your GPS and graph the update time as compared to the speed reading.
    I have done this many times and IMO it's foolproof.
    My Gaffrig / Nordskog GPS is 1 sec update time.

    You can also buy a unit that graphs it for you and measures out distances to whatever you want.
    G-Dyno Plus with GPS Performance Computer and Race Car Data Acquisition System
    The cost of this unit will be less than running at a track twice.

    Now the naysayers can come out of the woodwork.

    Twin Turbo 1800 HP V-Drive lake boat

    http://s621.photobucket.com/albums/t...t=MAH05771.mp4

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    No one cares about your buddies old antiquated garden hose technology.
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    I think I could run more boost but it's a real hand full right now

  7. #5
    Owner/Crew Chief 1/4 Miler's Avatar
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    Mathematically (Calculus) the 2nd derivative of a series of #'s such as speeds @ time intervals is the rate of change or, acceleration or deceleration ..... there are Excel Applets that have been written to approximate both the 1st (Minima & Maxima or points of change) & 2nd derivatives that can be found on the internet.

  8. #6
    Senior Member Boat 405's Avatar
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    Buy a dangling keychain and measure how far back it swings......


    Boat 405.

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