Quote:
Originally Posted by MetroMPG
One bit of advice: you don't necessarily have to drive fast to test airflow. The air behaves pretty much the same at 30 mph as it does at 70 mph. That may make it easier to find a suitable road to do this.
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I would suspect the separation point move closer to the roof apex the faster I go... but more than likely, I'll drive around 50 mph.