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Old 06-26-2018, 09:14 PM   #3592
cjopant
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Join Date: Apr 2015
Drives: 2015 Subaru BRZ
Location: Vancouver
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I'd love to understand how to reduce how much my ride height sags with weight fluctuations. If I have a full tank of gas and a trunk full of jerry cans, the ride height in the rear will be noticeably lower. Is this a result of soft springs?

Here's my setup in part:
  • KW V3 Coils - (Not 100% on the spring rate, but they're from 2017 so I think they're 230/285)
  • -2.5 camber all around on Verus plates
  • 18x9.5 +38 wheels w/ 255/35R18 MPSS
  • Verus rear control arms
  • Verus rear toe arms
  • Pretty low - less than a finger gap all around
  • Pretty stiff - I recently had the rear compression stiffened in an attempt to stop the sag (and subsequent rubbing), but it's not really working and the ride is now a little too harsh for the street.

Here's a pic of how it's currently sitting. I'll likely raise it up a bit, and go back to my previous compression settings but I've had this problem (and rubbing) at higher ride heights too.




Are my springs too soft?
Am I feeling the 2mm difference between my +38 setup and the +40 that most other folks seem to run?
Am I too low? (probably?)

Any guidance would be greatly appreciated!
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