Matthew Fortner wrote:
I've been using RaceChrono for about a year now on a inactive Nokia N75 (Symbian OS). I've found it to be very accurate in lap times and segment times as long as you split in areas without sudden change. I suspect this is the case with many GPS based applications. My GPS receiver is only 1hz so as you can imagine the data in braking zones and turns is pretty rough (sometimes too slow or fast for me to think it accurate in those areas). I'd love try a 5hz receiver to see how much better it is, but the segment data has been accurate to the tenth with the on board video.
And with there is the video app that will let you overlay your lapdata onto your onboard video. I do not have an accelerometer so I have not tried that.
the now recommend a quartx receiver with tri-axle acceleromter. It polls at 5hz and collects data. They also now have OBDII reading so you can get the ecu inputs as well. Pretty nice update. The Receiver is only $65 bucks.
A Smart phone with a touch screen also seems to make a nice dash readout and update.
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Marty Howard
2011 NASA SE Factory Five Challenge Champion
Track Events Logistics Coordinator - TZC/THSCC
2007 Factory Five Challenge Car.
http://www.mh-motorsports.com