Is it normal for there to be a big spike in lineal acceleration after first gear? It almost seems as if the car had some kind of turbo boost for a quick second (which is not the case). I've attached some screenshots of the first run (stock car, 6.26s) against the reference run (exhaust manifold...

Background: I'd like to time race start, from 10 to 90 kph, in order to improve start technique.
However I can only set start speed to =0 or >= 30 kph.
Is this a limitation in the current version of Dyno, if so when will Dyno allow setting start speed also in interval 1-29 kph?
Regards, Guttorm

Would be nice if we could measure different stages of acceleration in 1 go, like dragy does
The other apps have 0-60
0-100
80-120
100-200
1/8 mile
1/2 mile
1/4 mile
custom distance
Here i can only measure 1 custom acceleration. Could this be implemented in the software?
Would be nice...

Hi. I am looking for a GPS based measurement of power / torque based on known vehicle parameters. The car is a bike engined sports racer and has no provision for OBD (wish it did). I looked for a dyno app and yours came up. I already have the Grand Prix edition of lap timer and have enjoyed using...

I have Dyno functionality included in my Harry's Laptimer Grand Prix edition. I have used the lap timer for many years, however not the Dyno functionality. I have a Dual XGPS160 external GPS and a GoPoint BT1 OBD device.

Some questions:

1) I'm still asked to define a track, and if I'm not near...

On the 'Performance' screen image on the app store I see a power dial, howver on my instaled app there is no power dial and there seems to be no way (that I can find at any rate) to change the parameters that appear here.

How do I get the power dial?

Hi Harry,

thanks for coding these fantastic apps!
Unfortunately I have some troubles when exporting (even recording) speed runs. The "max speed" value is always too low, e.g. 180kph when running 100-200. Although there is a time for 100-200 inside the app which seems to be in the correct...

Hi Harry,
I bought your Dyno App for iOS yesterday and tested it a bit. Using it with my Dual SkyPro XGPS160 looks like a very nice and stable app yet!
One shortcoming I found is the setting for the start- and stop speed. It takes "hours" to change this from 0-100 to 100-200 for example....

Hi Harry,

I drive a classic sportscar with a modified engine and am looking for a solution to evaluate changes made to the engine.

For this, I would like a solution that generates hp and torque vs. rpm graphs.
I believe that GPS-based acceleration is not accurate enough for this, plus I wouldn't...

Hi Harry,

I drive a classic sportscar with a modified engine and am looking for a solution to evaluate changes made to the engine.

For this, I would like a solution that generates hp and torque vs. rpm graphs.
I believe that GPS-based acceleration is not accurate enough for this, plus I...

Hi

Just received my SkyPro yesterday. It links correct with the Dyno app but the status allways says "not ready". When clicking on the red infos, the GPS position and the Accuracy is highlighted red. But the SkyPro app states 14 sattelites and 3d position fix.

The courious thing is,...

Hello,

I have been using LapTimer Rookie with a Dual XGPS150 on an old iPhone 4 (ios 7.1.2). I installed Dyno, but it will not load. When I launch the app, I see the "Harry's GPS Suite" screen, then the screen goes back to my home screen without launching the app. LapTimer still works....

Harry--

I'm confused about the purpose of this app.

The page on Google Play says that this app measures performance, which is a bit vague.

With a name like "Dyno", I expected to get the kinds of power and torque charts one gets from a dynamometer .

This app just seems to measure...