Measuring 0-60 Performance on iPhone?

[Allistah]

Are there any apps on the iPhone to measure the 0-60 perf of our model 3 that are worth a damn? There is an app called GPS Race Timer but I don't know if it works well. It seems to lag behind the car quite a bit so I don't know if that equals inaccuracy or not.

I have a Garmin eTrax 10 that I used to measure the speed of my watercraft on the water, but they don't measure 0-60 mph or 1/4 mile at all which is unfortunate.

Thanks for any tips anyone may have for me..

 

[Haxster]

I've used PocketDyno. Can't vouch for it's accuracy, but it is consistent.
However, it's not accurate below 1,5 seconds 0-60.

 

[Allistah]

I'll have to check it out.. Here is a video I found of that app I mentioned above. I'm going to go reboot my phone and try it out over 5 runs and see what I come up with. Looks like they're comparing it against a more accurate device.

When I get back with my numbers, I'll post back. I want to get this data before I get the next update with the 5% power increase. lol

 

[bhzmark]

Get Dragy

 

[aliengar0]

iPhones only captures GPS at 1hz which means once per second - you shouldn't waste your time on this

 

[Allistah]

Ah, good to know. Which is why the Dragy is 10Hz. Makes sense now.. at first I didn't understand the significance of the 10Hz.

 

[CA_Car_Guy]

Here is a half mile pull against and Audi R8 v10 performance plus. 4 sec to 60 topping out at 130mph. I was at a 35% SOC

 

[1.21GW]

Get dragy, don’t waste your time with the phone. It is hardware limited.

 

[jelarv]

Here is a half mile pull against and Audi R8 v10 performance plus. 4 sec to 60 topping out at 130mph. I was at a 35% SOC

Performance model?

 

[CA_Car_Guy]

Performance model?

my car is a
AWD LR with the 19" sport wheels on it. A P3D ran a 134mph the next day,

 

[Kevy Baby]

The only way to get an iPhone to get to 60 MPH is to throw it off a cliff

 

[Joabe]

Has anyone tried the Stats for Tesla app and it's 0-60 timer?

 

[Allistah]

I didn’t know that was in there. Going to try it this coming weekend. If anyone else wants to try it, would love to see the results. I won’t get to this for a few days at least.

 

[Dazboj]

I want to correct some information in this thread. Not all apps use the GPS in the phone to measure the 0-60 which is obviously not accurate enough.
Teslemetry uses the Tesla data API which updates data at a much higher rate.
The cars GPS also operates at 1Hz, but by monitoring the actual speedo instead of the GPS we can get a pretty accurate 0-60 time.

 

[asian_xl]

Get dragy, don’t waste your time with the phone. It is hardware limited.

x2

 

[Lexdysic]

Yes, stats has the -60 timer. I've never tried it. Not sure of the accuracy. It's on the settings page, scroll down.

 

[LACALawyer]

I would use an iPhone to time a boiled egg. Not something that comes down to tenths of a second.

 

[Wingsy]

What I did was to set my iPhone to slo-mo and recorded the speed display. I then counted the frames (240 per second) between the first instance of a non-zero speed and when 60mph showed on the display. Each frame represented 4.1666 milliseconds. I figured that any delay that I would see in the car's display would be the same at 1mph as it would be at 60, so any delay in displaying speed would pretty well cancel out.

And btw, my 400hp Charger clocked in at 5.24 sec and my M3 at 5.14.

 

[Knightshade]

What I did was to set my iPhone to slo-mo and recorded the speed display. I then counted the frames (240 per second) between the first instance of a non-zero speed and when 60mph showed on the display. Each frame represented 4.1666 milliseconds. I figured that any delay that I would see in the car's display would be the same at 1mph as it would be at 60, so any delay in displaying speed would pretty well cancel out.

And btw, my 400hp Charger clocked in at 5.24 sec and my M3 at 5.14.

Guessing that's a RWD model 3?

 

[Wingsy]

Guessing that's a RWD model 3?

Roger that.