RE: back to back testing
I am not the owner of the vehicle and I'm not sure how much assembly and disassembly the gentleman that owns this car will want to do while at the track.. so no promises on back to back testing with and without wings on same day.
Note that from my experience performing accurate back to back testing is very hard to do at this time of the year in our region (Southern California) as it gets very hot during the course of the day.. it is not unheard of to go 1.5-2 secs slower on the second session of the day from what you did in the first session as ambient temp can rise a good 25-30 degrees (F) between the the first two sessions, changes in surface temps etc..
At any rate, the owner does have a PB around the track to try and beat on a track that he's well familiar with, so we'll definitely be able to tell how well things perform
RE: dual vs. single element wing
The kit will have 2 versions, one that utilizes single element wings (APR GT-250) and one that utilizes the dual element GT-1000 wings (which is a GT-250 with added secondary element).
Saying that single element wings create less drag than dual element wings is actually not true, good thing there's actual DATA to show, so let's take the GT-250 and GT-1000 for example.
Numbers pulled straight off APR website -
I picked the 10 degrees mark because it allows direct comparison between the two.
Take a look at the data and note that the GT-1000 makes MORE downforce while creating LESS drag.
Simply put, the dual element wing is more efficient.
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