Quote:
Originally Posted by kingsway
But to my great suprise, when I did the cost-down test again, from 50 to 40 mph, instead of slowing in 14 seconds, it took nearly 20 seconds!!! (I repeated the test several times)
Now, it was just a quick and dirty test - with no account of wind (although the air did seem fairly still)
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Wow. That seems really encouraging!
If I were you, I would want to do the test under
identical conditions (excuse me if my reading of your test is wrong - I got the impression you did your coast downs on different days). I'd want to be sure the effect is from the mod, and not something like a tailwind or the wake from vehicles ahead of you, or ???, etc.
Why? Whenever I do a mod, I always say to myself: "there is a remote possibility this mod could in fact be making things
worse." The only way to know for sure is to do the best test possible and be careful I don't accidentally deceive myself into leaving a bad mod on the car!