Quote:
Originally Posted by mcgm5
although I doubt that its an issue to dyno the vehicle YOU own.
its actually really easy for BMW to see that the car was dynoed with a simple check of the ECU through the data port.
If a car is dynoed there will be a huge difference in the wheel speed sensors which can easily be verified. Rear wheels going 155mph while the front wheels are stopped. (or are rolling 5mph). Wheel speed sensor's are continually being monitored while the car is running either way.
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There are a number of ways that BMW could detect that a car was dyno'ed even beyond wheel speed sensor data. For example, accelerometers showing no accel while throttle is fully depressed. If you're debating wether or not BMW can tell if an M5 was dyno'ed your well behind the discussion.
I find forum bias very interesting. I don't know how much power this guy is making, but when faced with the proposition of over 700hp from a tune or inaccurate dyno numbers, the person who suggested the dyno's may be inaccurate gets flogged. Kinda funny.