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How fast does it go?

Old 06-22-2022, 02:18 AM
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Default How fast does it go?

Wanted to check how fast my unknown little .21 Go engine could be.

I don't own a fancy smancy skyrc GPS thingamabob, so decided my trusty OLD Garmin would need to do.

Tried tuning my HSN again for a bit more top speed, but that is all she got. LOL!

Old 06-24-2022, 07:48 PM
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My experience with those GPSes is that they need quite a while in a straight line to display the speed properly. Like ten seconds at constant speed at least, probably longer.
And since that kind of car can do easily 20+ m/sec, that would mean that you really need to run it 200+ metres in a straight line at constant speed.

Probably, if you find a suitable place where you can chase it in a car and run it all out for half a kilometre, you will probably get better numbers. The averages are simple calculated values (distances divided by times) and those are pretty much correct all the time. But max speed is a measured speed with a damping, and it needs time for the readout to stabilize.
At least, my own GPS (TomTom) always lags quite a bit behind before the speed readout stabilizes.

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