alex_tdi
Veteran Member
Hi,
Here's a question that have always been on my mind.
We've all been told that as speed increases, the amount energy/HP required to maintain that speed increases dramatically. That is the reason why the federal gov't imposed a 55MPH speed limit until recently.
However, different cars have different drag coefficients. Drag affects MPG at high speeds. So at some point, the faster you go, your MPG will go down.
So, how does one calculate the optimum MPG?
At what point does the marginal increase in MPH causes the MPG to decrease?
Thanks
Alex
Here's a question that have always been on my mind.
We've all been told that as speed increases, the amount energy/HP required to maintain that speed increases dramatically. That is the reason why the federal gov't imposed a 55MPH speed limit until recently.
However, different cars have different drag coefficients. Drag affects MPG at high speeds. So at some point, the faster you go, your MPG will go down.
So, how does one calculate the optimum MPG?
At what point does the marginal increase in MPH causes the MPG to decrease?
Thanks
Alex