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Old 07-29-2019, 03:30 AM   #82 (permalink)
Snax
Master EcoModder
 
Join Date: Dec 2008
Location: Eugene, OR, USA
Posts: 290

Lord Vader - '15 BMW i3 REx
90 day: 35.06 mpg (US)
Thanks: 61
Thanked 128 Times in 96 Posts
I am about to give up on tracking actual efficiency with this thing on any short term kind of basis. It is simply proving too inconsistent to be indicative of anything at this point.

I could be wrong, but my gut tells me that the addition of discs front and rear, as well as half skirts on the rear have reduced drag, but my numbers simply don't reflect that even when testing in conditions that are virtually identical to unmodified test conditions. There must be something different, but not sure what - or perhaps even the possibility that discs and skirt actually hurt drag. Could that be??

I've decided that the only thing that is going to produce any usable short term A-B-A data is the coast down test. Eliminating drivetrain variables will be the only way to see what is actually happening with each mod unless I want to spend countless hours driving around for little other reason.

I'm gonna need a different test road . . :/
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2015 BMW i3 REx
2011 Ford Flex SEL AWD
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