Koni Yellow Rebound Settings - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

dutchman1 · 02-25-2017, 10:49 PM

My car will be used quite a lot for autocross this year and am wondering what a good base line is for the rebound settings with the stock (non-TRD) springs.

I'm quite aware of what adjusting the front/rear shock rebound does in terms of fine tuning the handling, but not sure where the proper baseline is.

I'm guessing it is quite close to full soft with the OEM springs, seeing as most of the guys I've seen are running .5-1.5 from soft on the stiffer TRD springs.

Anyone have any idea where they should be at for proper dampening?

ryoma · 02-26-2017, 12:20 AM

set it at the softest and go from there. it will take some fine tuning since your driving style will be different than someone else's. what works for someone else might not work for you, even if they have the exact mods.

freerunner · 02-26-2017, 11:03 AM

To increase understeer/stability at corner-entry, increase rear rebound*
To increase oversteer/agility at corner-exit, increase front rebound*

And vice versa.

It's really more complicated than that (one thing here affects another thing there), but it's basically what these settings do.

*) for low-speed damper settings (not vehicle speed!)

02-25-2017, 10:49 PM	#1
dutchman1 Senior Member Join Date: Nov 2016 Drives: 2017 86 6-Speed Location: Seattle Posts: 138 Thanks: 35 Thanked 74 Times in 36 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Koni Yellow Rebound Settings My car will be used quite a lot for autocross this year and am wondering what a good base line is for the rebound settings with the stock (non-TRD) springs. I'm quite aware of what adjusting the front/rear shock rebound does in terms of fine tuning the handling, but not sure where the proper baseline is. I'm guessing it is quite close to full soft with the OEM springs, seeing as most of the guys I've seen are running .5-1.5 from soft on the stiffer TRD springs. Anyone have any idea where they should be at for proper dampening?

02-26-2017, 12:20 AM	#2
ryoma Senior Member Join Date: Mar 2015 Drives: 2015 Subaru BRZ Limited CWP Location: SoCal Posts: 1,561 Thanks: 34 Thanked 669 Times in 469 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	set it at the softest and go from there. it will take some fine tuning since your driving style will be different than someone else's. what works for someone else might not work for you, even if they have the exact mods. __________________ My 2015 CWP BRZ Build

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02-26-2017, 11:03 AM	#3
freerunner Senior Member Join Date: Jun 2015 Drives: GT86 Location: Germany Posts: 142 Thanks: 141 Thanked 41 Times in 34 Posts Mentioned: 3 Post(s) Tagged: 2 Thread(s)	To increase understeer/stability at corner-entry, increase rear rebound* To increase oversteer/agility at corner-exit, increase front rebound* And vice versa. It's really more complicated than that (one thing here affects another thing there), but it's basically what these settings do. *) for low-speed damper settings (not vehicle speed!)

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