[Yoshoobaroo]

Originally Posted by nikitopo

Here are the factory spring rate differences per car model. Source is the official SACHS Performance Coilover distributor in Japan, so it looks to be a quite reliable source.

Car model Front spring rate (N/m)Rear spring rate (N/m)
TOYOTA 86 ( MY 2021 ) 2839
TOYOTA 86 ( 1st model ) 2333

Car model Front spring rate (N/m)Rear spring rate (N/m)
SUBARU BRZ ( MY 2021 ) 3035
SUBARU BRZ ( 1st model )2335

EDIT: FIXED IN POST #6

This is confusing.
Is this formatting correct? The values are an order of magnitude low for Newtons/mm too. Could it be N/cm or kg/mm?
I tried to make sense of the formatting but the units are definitely wrong:

2022 TOYOTA GR86:
F: 2839N/m - 2.839N/mm - 0.290kg/mm - 16.2lbf/in
R: 2333N/m -2.333N/mm - 0.238kg/mm - 13.3lbf/in

2022 SUBARU BRZ:
F: 3035N/m - 3.035N/mm - 0.310kg/mm - 17.3lbf/in
R:2335N/m - 2.335N/mm - 0.238kg/mm - 13.33lbf/in