gps timer for lap times?

[SNAKE BITE]

Does anyone know of a gps timer to record lap times?

 

[Viperless]

I have one of these. Works great!

http://www.g2xtreme.com/main.htm

I also bought the Trackvision software which overlays the data in the form of an analog or digital "dash" display on your in-car video if you happen to have it. It's very cool.

http://www.trackvision.net/

 

[Kai SRT10]

I know people who use and like the traqmate system.

http://www.traqmate.com/

 

[wastntim]

Why GPS instead of Laser type system? Do the benefits of a GPS system outweigh the cost difference?

 

[Viperless]

I have no experience with laser type systems but I believe the advantage to GPS systems is they don't require anything to be setup external to the vehicle. It's all self contained and you can easily move it from one vehicle to another. The G2X will automatically create a trackmap from the data it collects and you can set the start/finish line anywhere on the map. It also logs lateral g-forces as well as braking and acceleration g-forces. It will also display your real time GPS speed on the "dash" as well as lap times, lap time differences, engine rpms, etc. It also has a progressive shift light that you can program to come on at any rpm and rpm interval you choose. It's more than just a simple lap timer.

 

[wastntim]

I have no experience with laser type systems but I believe the advantage to GPS systems is they don't require anything to be setup external to the vehicle. It's all self contained and you can easily move it from one vehicle to another. The G2X will automatically create a trackmap from the data it collects and you can set the start/finish line anywhere on the map. It also logs lateral g-forces as well as braking and acceleration g-forces. It will also display your real time GPS speed on the "dash" as well as lap times, lap time differences, engine rpms, etc. It also has a progressive shift light that you can program to come on at any rpm and rpm interval you choose. It's more than just a simple lap timer.

How did you hook it up to get the RPM info?

 

[Viperless]

How did you hook it up to get the RPM info?

Gray connector on the PCM (farthest to the right) has a gray wire with a blue tracer. This is the signal going to the tach. I simply tapped into it. Then you program the G2X for whatever number of pulses per revolution and your done. Interesting to note that the factory tach still works.

 

[SNAKE BITE]

Why GPS instead of Laser type system? Do the benefits of a GPS system outweigh the cost difference?

I like that you have nothing outside to set up. All you have is the GPS unit in the car. It also gives you much more info as stated above. You can not only do complete lap times but also segment the track to see how you do through a certain section or corner etc.