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      03-21-2021, 07:53 AM   #10
1KRNRRNG1
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Drives: 135i
Join Date: Mar 2021
Location: Toronto

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I am just wondering how things have progressed longterm on this setup. I have just purchased a "new to me" 135 that is unfortunately riding on Swift R Springs and with Koni STR.T (Orange) which seems to be horrible, mated to horrible, resulting in "more horrible-er". The car seems to be riding very low, which is keeping with your findings, and the the rear of the car on high amplitude compressions seems to get upset dramatically, and go straight to bump stop on a slight compression at highway speed. Seems to make sense looking at your findings.
Typically I would just bite the bullet and go Ohlins Road & Track, however I was thinking something more "cup-kit" like Bilstein B12, I am not sure that this car will see any lapping days in the next 24 months, but this setup is too low and understeers, and then the rear end "jumps" up. (All the M3 arms are in there and tight.).
Any thoughts?
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