Wipeout on Buzzard's Neck

ShadeD1 · 12-08-2010, 04:50 PM

Not me the e36 in front of me... I shot this at MSR Cresson TX this weekend. The video and overlays were done with my iPhone 4 using Harry's Lap Timer

slalomfever · 12-08-2010, 05:05 PM

is that where Motorsports Ranch is being filmed?

ShadeD1 · 12-08-2010, 05:10 PM

Had not heard about that show, but it looks like the same place. I've been going there about 3 years but I'm not a member.

Quote:

Originally Posted by slalomfever

is that where Motorsports Ranch is being filmed?

aus · 12-08-2010, 08:40 PM

Thanks for the vid.
Is that an app on iTunes?
Do you have to start/stop manually, or does it do it via gps?
What mount did you use?
Looks cool.

ShadeD1 · 12-08-2010, 09:15 PM

Harry's Lap timer is an iPhone/iTouch app. It times laps, videos, and overlays gps info. It start and stops itself when it passes a predetermined start point. You download most tracks gps points direct from the iPhone. I'm very happy with it. The only limitations right now is that it only records HD video on the iPhone 4, or SD video on the 3GS, but it will work on any other iPhone as a lap timer. Also, it can only video every other lap but times every lap.
I'm using a RAM suction mount on the windshield.

414bhp · 12-09-2010, 01:04 PM

Is the data collected good enough to compare lines through a particular corner and pick out the fastest way through?

I have been using Trackmaster on Android to do datalogging, and I am pretty happy with it. I did have to buy an external bluetooth GPS so that I could log at 5hz (instead of the 1hz that my phone provided) and get enough data to really see what I was doing at each part of the track.

What rate of data does Harry's capture? Can it also interface with an external GPS?

hhlou520 · 12-14-2010, 12:58 AM

Quote:

Originally Posted by ShadeD1

Harry's Lap timer is an iPhone/iTouch app. It times laps, videos, and overlays gps info. It start and stops itself when it passes a predetermined start point. You download most tracks gps points direct from the iPhone. I'm very happy with it. The only limitations right now is that it only records HD video on the iPhone 4, or SD video on the 3GS, but it will work on any other iPhone as a lap timer. Also, it can only video every other lap but times every lap.
I'm using a RAM suction mount on the windshield.

I've had no luck with this app at TWS. Even though the start/finish reference point is defined the app does not pick it up and I end up with one 25 min lap time for the entire session. I'm not that slow...

ShadeD1 · 12-17-2010, 08:07 AM

I saw a couple of people having some issues with the app. It was usually bad placement for the gps but some people said after they rebooted the phone the lap timer started working correctly. Also make sure you don't have both POI sets (CW & CCW) on your phone, it confuses the app. If you don't have an iPhone 4 you really will need an external GPS antenna.

The Data Rate for the GPS is 1khz.

zsapphire7 · 12-17-2010, 05:18 PM

i have harrys laptimer pro too

. works like a charm. how did you get the overlays done for ur video? Was that through another software like trackvision or did they update harrys laptimer to overlay the video directly??

ShadeD1 · 12-17-2010, 05:28 PM

If you click on the individual lap times and scroll to the bottom it has an "overlay" button. It takes 3-5 min to overlay the track data to the video. I've been really impressed with the app overall. Not perfect but for 15 bucks you can't go wrong.

bigjae1976 · 12-24-2010, 03:30 AM

Man, that was close. Who were you running with?

ShadeD1 · 12-24-2010, 08:26 AM

The Drivers Edge is the group I usually run with.

lucid · 12-24-2010, 10:15 AM

Quote:

Originally Posted by ShadeD1

The Data Rate for the GPS is 1khz.

You must have meant 1Hz for the GPS readings, which is way too low for collecting meaningful information IMO. Its built-in accelerometer might be functioning at 1kHz. I don't own one, so I am speculating...

In general, dedicated data acquisition systems have GPS sensors operating in the 5-20 Hz range. I think vbox has a high end (and expensive) system with a GPS sensor that operates at 100Hz.

bigjae1976 · 12-24-2010, 09:56 PM

Quote:

Originally Posted by ShadeD1

The Drivers Edge is the group I usually run with.

Was that the yellow group? I'll be back in Tx next year...maybe I'll see you at an event!

MaxL · 12-27-2010, 02:22 PM

Is there a way to use this app with an external GPS? I have a Bluetooth GPS that gives either 5 or 10Hz, which should be better for comparing lines between laps - wish I could use it with this app.

zsapphire7 · 12-27-2010, 02:51 PM

yup it does have support features for external
gps

ShadeD1 · 12-27-2010, 03:04 PM

Here is the site for GPS Compatibility.

http://web.me.com/hschlangmann/LapTi...atibility.html

12-08-2010, 04:50 PM	#1
ShadeD1 First Lieutenant Drives: 2010 Jerez Black E92 DCT Join Date: Feb 2010 Location: Houston, TX Posts: 317 iTrader: (0)	Wipeout on Buzzard's Neck Not me the e36 in front of me... I shot this at MSR Cresson TX this weekend. The video and overlays were done with my iPhone 4 using Harry's Lap Timer
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12-08-2010, 08:40 PM	#4
aus Major General Drives: M3 Join Date: Jul 2005 Location: Seal Beach, CA Posts: 6,166 iTrader: (5)	Thanks for the vid. Is that an app on iTunes? Do you have to start/stop manually, or does it do it via gps? What mount did you use? Looks cool. __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."

12-24-2010, 03:30 AM	#11
bigjae1976 Brigadier General Drives: 04 330Ci, 11 E90 M3 Individual Join Date: Mar 2006 Location: Milwaukee, WI Posts: 4,047 iTrader: (8)	Man, that was close. Who were you running with? __________________

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12-08-2010, 05:05 PM	#2
slalomfever Captain Drives: X5 and E93 ///M3 Join Date: Mar 2007 Location: Long Island Posts: 831 iTrader: (3)	is that where Motorsports Ranch is being filmed?

12-08-2010, 09:15 PM	#5
ShadeD1 First Lieutenant Drives: 2010 Jerez Black E92 DCT Join Date: Feb 2010 Location: Houston, TX Posts: 317 iTrader: (0)	Harry's Lap timer is an iPhone/iTouch app. It times laps, videos, and overlays gps info. It start and stops itself when it passes a predetermined start point. You download most tracks gps points direct from the iPhone. I'm very happy with it. The only limitations right now is that it only records HD video on the iPhone 4, or SD video on the 3GS, but it will work on any other iPhone as a lap timer. Also, it can only video every other lap but times every lap. I'm using a RAM suction mount on the windshield.

12-09-2010, 01:04 PM	#6
414bhp Private Drives: Evo Join Date: Dec 2010 Location: SF Posts: 72 iTrader: (0)	Is the data collected good enough to compare lines through a particular corner and pick out the fastest way through? I have been using Trackmaster on Android to do datalogging, and I am pretty happy with it. I did have to buy an external bluetooth GPS so that I could log at 5hz (instead of the 1hz that my phone provided) and get enough data to really see what I was doing at each part of the track. What rate of data does Harry's capture? Can it also interface with an external GPS?

12-17-2010, 08:07 AM	#8
ShadeD1 First Lieutenant Drives: 2010 Jerez Black E92 DCT Join Date: Feb 2010 Location: Houston, TX Posts: 317 iTrader: (0)	I saw a couple of people having some issues with the app. It was usually bad placement for the gps but some people said after they rebooted the phone the lap timer started working correctly. Also make sure you don't have both POI sets (CW & CCW) on your phone, it confuses the app. If you don't have an iPhone 4 you really will need an external GPS antenna. The Data Rate for the GPS is 1khz.

12-17-2010, 05:18 PM	#9
zsapphire7 Colonel Drives: 08 e92 M3 Join Date: Oct 2007 Location: TX Posts: 2,251 iTrader: (21)	i have harrys laptimer pro too . works like a charm. how did you get the overlays done for ur video? Was that through another software like trackvision or did they update harrys laptimer to overlay the video directly??

12-17-2010, 05:28 PM	#10
ShadeD1 First Lieutenant Drives: 2010 Jerez Black E92 DCT Join Date: Feb 2010 Location: Houston, TX Posts: 317 iTrader: (0)	If you click on the individual lap times and scroll to the bottom it has an "overlay" button. It takes 3-5 min to overlay the track data to the video. I've been really impressed with the app overall. Not perfect but for 15 bucks you can't go wrong.

12-24-2010, 08:26 AM	#12
ShadeD1 First Lieutenant Drives: 2010 Jerez Black E92 DCT Join Date: Feb 2010 Location: Houston, TX Posts: 317 iTrader: (0)	The Drivers Edge is the group I usually run with.

12-27-2010, 02:22 PM	#15
MaxL Captain Drives: M3 e90 Join Date: Jun 2007 Location: Toronto Posts: 835 iTrader: (0)	Is there a way to use this app with an external GPS? I have a Bluetooth GPS that gives either 5 or 10Hz, which should be better for comparing lines between laps - wish I could use it with this app.

12-27-2010, 02:51 PM	#16
zsapphire7 Colonel Drives: 08 e92 M3 Join Date: Oct 2007 Location: TX Posts: 2,251 iTrader: (21)	yup it does have support features for external gps

12-27-2010, 03:04 PM	#17
ShadeD1 First Lieutenant Drives: 2010 Jerez Black E92 DCT Join Date: Feb 2010 Location: Houston, TX Posts: 317 iTrader: (0)	Here is the site for GPS Compatibility. http://web.me.com/hschlangmann/LapTi...atibility.html