I'm basically after some advice as to recommendations for accessories and information when it comes to using the Laptimer on a go-kart. I will be using an iPhone 5 and racing on smaller kart tracks in Australia.
I'm assuming I will have to manually 'map' the track - with the assistance of an external GPS detector - and this will allow me to gather lap times and g forces /speeds etc while racing?
I want to mount the iPhone 5 on my steering wheel - see this link
![Image](http://i.imgur.com/PduG7QR.png)
so as to be able to view the iPhone 5 laptimer interface while driving.
I also want to have a GO PRO mounted on my kart with which to take video footage to overlay with the GPS lap timing data.
I would love some advice and expertise on how to go about this.
Thanks in Advance