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Procal

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Old Apr 13, 2014 | 11:15 AM
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Default Procal
Have 35's that measure 33.5 so set the procal to 33.5 and was still off by 5mph. I ended up adjusting the procal all the way down to 31.00 to get the speedo and gps synced together??
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Old Apr 13, 2014 | 11:19 AM
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That's good you got it dialed in.....
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Old Apr 13, 2014 | 11:52 AM
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Yes dialed in but does it matter if the procal is 2.5 in difference from tire measurement?
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Old Apr 13, 2014 | 12:14 PM
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As long as it's accurate, I wouldn't worry about it too much.

For me, the flashpaq was way off and the procal was more accurate. So I used the flashpaq for tuning and the procal on top of it for calibration.
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Old Apr 13, 2014 | 12:27 PM
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Yes I guess as long as speedo is correct shouldn't be any issues. Thanks
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Old Apr 13, 2014 | 12:30 PM
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My procal was right on. Couldn't believe with one try. Maybe double check the settings?
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Old Apr 13, 2014 | 12:44 PM
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Yes that's why it's strange all setting are correct and tire measurements are all correct. Should I reset to stock an try again?
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Old Apr 13, 2014 | 12:57 PM
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Go for it, only takes a few minutes to set back to stock and re-program.

You didn't have it programmed with another device previously, did you?
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Old Apr 13, 2014 | 01:41 PM
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No other devices it's a 13 unless dealer used something.
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Old Apr 13, 2014 | 02:22 PM
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Originally Posted by jjtvegas
Have 35's that measure 33.5 so set the procal to 33.5 and was still off by 5mph. I ended up adjusting the procal all the way down to 31.00 to get the speedo and gps synced together??
how does your tripometer compare to the gps? Something does not sound right. Are you using a stand alone gps? if you have smart phone there are many good speedometer apps.
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