Quote:
Originally Posted by jime57
Well somewhere between your opinion and mine, there is a real answer 
I just don't know how to get at the answer, since the difference is probably very small and nearly impossible to separate from the noise, given the difficulty of testing on an Insight.
What would you suggest? I suppose that one could do some high speed coast down test from say 70MPH to 50MPH. That would eliminate many of the Insight specific variables that confuse Insight testing. What you think of that approach?
BTW, the Moons protrude more into the airstream than the rather flat stock wheels, so there is that arguement against them. If this protrusion were productive, then Honda could easily have done the same thing with an alloy wheel. I'm just kinda suspicious that flat is better with the other work that Honda did around the fender well.
Your thought welcome  |
In the mod-data sticky there is some data from GM's wind tunnel development work for their Pontiac Trans Am Firebird at the Lockheed Marietta,Georgia facility.
They did comprehensive evaluations of wheel covers and their 'MOONesque' cover delivered the lowest drag.
Boeing uses them on everything they build for Southwest Airlines,and all the fastest LSR streamliners typically use them at Bonneville,as does Danika Patrick on her Indycars (both in and outside application).
The subtle convexity lowers drag (as with GOODYEAR's streamline tires for aircraft) compared to a flat disc and they are very strong for their thickness and are not subject to flutter.