Setting finish line using PDR
Thread Starter
Instructor
Joined: May 2010
Posts: 165
Likes: 28
From: Franklin TN
Setting finish line using PDR
When I track my car at NCM, I start recording with the PDR while in pit row waiting to get waived onto the track. I'll also hit "mark finish line" there & it will then compute my lap times. I believe I did the same thing down at Barber Motorsports in Birmingham but no lap times were recorded. It's as if the "mark finish line" didn't take or couldn't be detected from the pit lane compared to the actual track. Anyone else ever had this happen?
Racer
Joined: Mar 2017
Posts: 264
Likes: 73
From: CT
At the Corvette Owner School they said that it is best to mark the finish line on track because it only measures about 30ft either side of the point you mark (I can’t remember the exact parameter they quoted). If you mark the finish line in the pit and you pass it on the outside of the track, you may be outside the parameters and not get a reading.
Team Owner
Joined: Aug 2007
Posts: 136,140
Likes: 2,432
From: I live my life by 2 rules. 1) Never share everything you know. 2)
St. Jude Donor '11-'12-'13, '16-'17-'18
25.7 feet actually (based on guaranteed GPS accuracy by the way)
Burning Brakes
Joined: Oct 2006
Posts: 787
Likes: 127
From: Connecticut
