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Thread: New Garmin and windscreen turbulence

  1. #1
    Senior Member New Garmin and windscreen turbulence GregC's Avatar
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    New Garmin and windscreen turbulence

    So I bought the new Zumo 396 LMT-S on sale after using a 660 for the last couple years. It has the Garmin “curvy roads” feature and a bunch of other upgrades. It works quite well, and the curvy roads function actually works surprisingly well. It can also plan round trip based on distance or time, so you can tell it to plan a round trip for an hour ride, with the curvy road feature. Pretty nice, especially for short after work or weekend rides. The media player and phone integration are also much, much better than the 660.

    The other interesting thing I discovered is when I removed the old 660 from the jury rigged system above my instrument cluster. I’m using a Calci screen that has the lower cut out to allow some air to move behind the screened to reduce low pressure behind the screen and reduce turbulence. With the 660 mounted above the instrument cluster, I was blocking that airflow and was getting more turbulence right at the top of my helmet, which was very irritating because it created a low rumble through the helmet. I moved the new 396 to a mount on the tree clearing up that space behind the CalSci screen, and voila the turbulence is gone.

    I saw a guy on YouTube explaining this wind screen phenomenon and thought I would test it out, and sure enough it had a pretty noticeable impact. So I guess I won’t be trying to mount the new 396 above the instrument cluster even though that’s a better spot for viewing it.


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  2. #2
    Senior Member New Garmin and windscreen turbulence Nofear2trek's Avatar
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    When that GPS comes out in a 7” version, I will be 1st in line to get one; my old eyes just need a big screen. Also I just can’t get away from the ‘above speedo’ location. Having the GPS in my natural line of sight, even with any location caused turbulence, is much more preferable than the bobble-head effect when located below elsewhere.

    Ray
    Last edited by Nofear2trek; 13th September 2018 at 04:07.

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