- Mar 17, 2014
Why did I think yesterday was Wednesday?
Often times the gauges are rotated so that at their optimum operating range, the needles all point in the same direction to make them easier to read at a glance. In my Chevelle, all of the needles point straight up when all is well. In a race car, the driver isn't concerned about anything below say 5000 RPM, so you can turn it upside down and put the 5-9000 range at the top.Why the upside down tach?