Track addict pro racerender6/19/2023 ![]() You can always add the OBDII scanner later. An OBDII scanner is optional - for your needs as a novice to data acquisition I would just start with your phone and the external Dual 10Hz GPS receiver. The app you are running on the phone will merge that data stream with the data it is gathering. You use the phone to connect to the external GPS receiver via bluetooth to accurately record the position of your car. The phone's internal GPS has a frequency of 1Hz, and acquiring position information once per second is too slow to accurately position your car in space. I can do that almost any day of the summer, so that may get me some extra track days during the months I normally avoid fast driving. ![]() Side note: I recently obtained access to go on track in the mornings at HHR when the ambient temps are cooler. Then a hiatus until September when temps start to level off. My next track day is 4/12, and another in May, maybe 5/10? I am a tech Luddite, so I always consult the more tech-experienced folks for their tribal wisdom. I probably don’t have Vbox money unless I found one used in good condition, and considering that I don’t do track events during the summer because of the Texas nuclear heat, I don’t think I can justify spending more than $150-200 total for a lap timer.Ĭonsequently, I am also open to any GPS-based app on the iphone that is accurate within a second. This is strictly to track my progress to fine-tune my driving and see how I compare to faster cars and drivers. I am on a ridiculously small budget for car mods this year, so I’m interested in an affordable but reliable lap timer system. I had my first track day in the GTI on 3/15 at Harris Hill Raceway, my local track and personal oasis of Motorsport. Search results didn’t reveal what I’m after.
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