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      06-08-2020, 12:35 PM   #39
rhyary
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Drives: 2013 M3
Join Date: May 2015
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Quote:
Originally Posted by Bartledoo View Post
Quote:
Originally Posted by rhyary View Post
The pots measures the shock travel.
I don't know how to convert shock travel to spring travel. I have divorced setup.

Yes, 5mm is the delta between the two positions.

I give about 2mph for that 5mm delta.

This is all estimates but generally points out to the fact that the GTS wing just cancels the lift rather than generate oodles of downforce.
Okay, with shock travel you don't need to convert to spring travel if you know the shock motion ratio. I've read the stock motion ratio is .813, but I've never seen any confirmation. So, the downforce would be 94.2lb at each rear wheel given a 282lb wheel rate provided by the 900lb spring.
((6.9/25.4)/.813)*(900*(0.56^2))
So round figure 100lbs
Is this any thing ?

According to some pages I have without the GTS front and rear the M3 actually generates lift at this speed. So better than lift I guess
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