Thread: Lap Timer Apps
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Old 07-13-2018, 11:57 AM   #12
Alpha1BC

 
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Drives: 2017 1SS 1LE
Join Date: Jun 2016
Location: Detroit, MI
Posts: 1,000
I've been running Harry's whenever I go out. Seems to be OK and pretty close to PDR times, only downside I've noticed is that it will typically miss a lap or two during a track day. I'm assuming this is due to the poor resolution of the phone GPS. Another friend of mine running Harry's has it linked to a GoPro for video that shows the data overlay, and the GPS speed and map are always off as well. Getting an external GPS would be best, but Harry's is still a decent and (relatively) cheap starting point.
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