Trying out RaceChrono Pro with external GPS and OBDII at Queensland Raceway

#motorsport #queenslandraceway #subaru #brz #racing #racechrono
Some footage of the first session on Queensland Raceway's Clubman Circuit during weekend sprints. Unfortunately, throttle was showing 97-98% instead of 100% in the data.
Shot on Sony Action Cam and recorded with RaceChrono Pro.

[@markbolis5964]

Thanks for that. Once you have the dongle would this setup be similar to a vbox hd lite? That’s what I was originally looking at but the cost is $1500? Assume the dongle is only c$50?

[@lucas010888]

I can't comment on a comparison with the Vbox options, as I have not used any of their gear before. But, if you're after some simple telemetry and overlaid video footage, I can't fault the RaceChrono approach. For the price, it meets my needs. The dongle will give you access to whatever parameters you're car will share. You can even configure custom PIDs if you know the port and formula to interpret the data (e.g. the brake pressure data isn't served up natively but I have added for the BRZ I have).

[@markbolis5964]

Hi Lucas I’m looking to use the race chrono pro and get data from the OB port. Do you know what OB port dongle I need to buy? Noticed you were not filming from your phone rather a Sony camera? Can you not use iPhone and dongle together?

[@lucas010888]

I use an ELM327 Bluetooth dongle. You can use your phone's camera to record and use that footage, I don't because of where I have my phone mounted

[@pdreams]

Hi Lucas, is the brake position coming from OBD? I tried to look for it but didn't see it. Thank you and nice work.

[@lucas010888]

The brake pressure needs to be added as a custom OBD2 parameter against your vehicle profile. Have to configure the header, PID and insert an equation to extrapolate the values.

[@chrishart5474]

I use race chrono and would love the brake pressure on the overlay,​​⁠is this ​⁠easy enough to map ?? Will I need to find out how the car manufacturer maps the OBD output ​@@lucas010888 ??

[@ciro178]

Hi My friend, it's necesary to buy some obd2 device? How the phone receive data from car parámeters? I use racechrono pro But just it inform permormance data. Thanks very much

[@lucas010888]

It is, you will need an OBD2 dongle, that will plug into your car. I use a Bluetooth one that sends the data to my phone, then RaceChrono uses this to overlay the data.

[@86juven]

Hi Lucas, what OBDII u use? There are too many types.

[@lucas010888]

I just use a simple Bluetooth ELM327 dongle, and pair this to Racechrono Pro with a Qstarz 10Hz external GPS. I did use a USB OBDII dongle but had compatibility issues. Bluetooth fits the need for me

[@86juven]

@@lucas010888 Thanks, bro

[@winner1338]

is it possible to export vdo with real time map?

[@lucas010888]

You can export VBO files for use with Circuit Tools (or similar programs), if that is what you meant.

[@wz1musik]

How do you connect external gps and OBD? I am ios and both OBD and external gps are Bluetooth. Can you connect both at same time?

[@lucas010888]

You should be able to, I'm using Android though and have both connected vis Bluetooth without any issues.

[@stefanstankov937]

What gps u use

[@lucas010888]

Qstarz 818XT 10Hz

[@redsiput44]

​@@lucas010888 I've just bought the same 818 GPS and my seller a trackie himself been using it for quite some years which he said set to 1hz instead of 10hz. Can I get your advise/opinion?

[@lucas010888]

@redsiput44 I'm not entirely sure why the recommendation would be to set to 1Hz, since the polling rate would be no different to your phone's GPS. I use the 10Hz option without issue and it gives far greater accuracy, with laptimes being at most a couple of tenths off official timing - but often within a few thousandths of a second for accuracy.

[@redsiput44]

@@lucas010888 Exactly my thoughts too while surveying external gps so let's move ahead wif 10hz instead. Tysm champ👍🏻

[@diegopose3560]

RaceChrono