Quote:
Originally Posted by Mr Twisty
GPS speedo would be cool, I have an iphone app but don't know if it works to 200+
Besides that, you might have an issue with GPS update lag, you're accelerating so fast it would have to be immediate.
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The min GPS you'd use would be 10Hz anyway, so not a big deal. And he should also have undriven and driven wheel speed data too.
So a valid speed signal should not be of any concern. You wouldnt want to totally rely on GPS anyway, as that signal is not always guaranteed, but it's good to have it as a backup and independent speed signal ( as well as recording GPS position etc for datalogs )