Calling Koni Yellow and Swift spring owners

AH370Z · 08-23-2022, 08:42 PM

Hello, I have added front and rear koni yellow to my already swift spring setup and have notice the front is sitting much lower now. I did install front control arm bushes (upper and lower) the upper inner was double offset which gave me an extra -0.5 Neg camber so im probably running -2.0. Understand that may be giving an illusion to being lower due to tuck, however i feel like if it was running positive it would still definitly be lower than oem shock.
Overexposed some of the photos and added a red line to denote the top of tyre.

20220824_100243.jpg
20220824_100637.jpg

Rear guard is 688mm Front is 666mm (measure from ground)
20220824_104914.jpg

Pretty sure everything is sitting right as far as the shock and spring
20220822_105227.jpg
20220822_124216.jpg

Appreciate the input. Also if you would like to share comments about ideal damping settings, currently running front and rear at 50% firm with a whiteline front sway bar in soft setting (approx 30% stiffer than oem) Do lots of high speed mountain/country roads everything from the rough stuff to nice and smooth. Want the sportiest ride while avoiding being kicked off the road if i do encounter a bad section of said roads.

Cheers

SeeThruHead · 08-23-2022, 08:55 PM

Swift springs and Koni Yellows ride height
same thing here.

BettyZ · 08-24-2022, 07:49 AM

I run mine at 50%. Have the full SPL catalog, including bushings, and it rides more comfortably than OEM

AH370Z · 08-25-2022, 04:40 PM

Anyone else with this combo confirm? I have emailed Koni who have said they have sold hundreds of these with no issues with height. They suggested checking the bump stop condition however ride height was fine with swifts and oem shock

BettyZ · 08-25-2022, 07:00 PM

Did you do the install? Were all the parts put back on properly?

Rusty · 08-25-2022, 08:18 PM

On the front Koni's. The lower spring perch is 1/4" lower than stock. So the front will sit lower a 1/4" lower. Commonly asked question about Koni's.

AH370Z · 08-25-2022, 08:48 PM

Quote:

Originally Posted by BettyZ

Did you do the install? Were all the parts put back on properly?

My mechanic did the install and I helped, all went on as it should.

AH370Z · 08-25-2022, 08:51 PM

Quote:

Originally Posted by Rusty

On the front Koni's. The lower spring perch is 1/4" lower than stock. So the front will sit lower a 1/4" lower. Commonly asked question about Koni's.

Thanks Rusty, is there any official reference or evidence for this? other than me taking them off and measuring against the oem.

Email correspondence from koni are stating no height changes occure from shock.

Do we know if there is a solution for this? Can a spacer or similar be used to sit under the perch? I wonder if the G37 shocks sedan or coupe are different than 370z and Koni have matched it to them to save on cost. If the 1/4 inch is indeed true than Koni need to provide a solution to this such as an alternate spring perch that can raise it 1/4.

OptionZero · 08-25-2022, 09:42 PM

The solution is to get good coilovers

AH370Z · 08-25-2022, 09:52 PM

Quote:

Originally Posted by OptionZero

The solution is to get good coilovers

Umm no

JerryDeluxe · 08-25-2022, 10:08 PM

same setup here and yes the fronts will sit 1/4in lower.

BettyZ · 08-25-2022, 10:43 PM

Quote:

Originally Posted by AH370Z

Thanks Rusty, is there any official reference or evidence for this? other than me taking them off and measuring against the oem.

Email correspondence from koni are stating no height changes occure from shock.

Do we know if there is a solution for this? Can a spacer or similar be used to sit under the perch? I wonder if the G37 shocks sedan or coupe are different than 370z and Koni have matched it to them to save on cost. If the 1/4 inch is indeed true than Koni need to provide a solution to this such as an alternate spring perch that can raise it 1/4.

I measured them against the OEM and the fronts are a 1/4 inch lower - that's 6.35mm for metric-loving b*tch biscuits like OZ.

OptionZero · 08-26-2022, 01:25 AM

When did the metric system become “my thing”?

Maybe dont run a cheap spring/shock on a 500hp build.

OptionZero · 08-26-2022, 01:25 AM

Quote:

Originally Posted by AH370Z

Umm no

Better in every way

AH370Z · 08-26-2022, 04:30 AM

Quote:

Originally Posted by OptionZero

Better in every way

The two 370's i drove with coilovers both rattles in the rear top mounts over bumps and just felt awful.

Might be able to get a claim for refund as per Koni's latest reply so may very well end up witha set of MCA coilovers if they can guarantee me they wont have the rattle in the top moounts Ive experienced.

08-23-2022, 08:42 PM	#1 (permalink)
AH370Z Base Member Join Date: Jun 2009 Location: Australia - Sydney Posts: 168 Drives: 11' 370z, 13' E92 M3 Rep Power: 16	Calling Koni Yellow and Swift spring owners Hello, I have added front and rear koni yellow to my already swift spring setup and have notice the front is sitting much lower now. I did install front control arm bushes (upper and lower) the upper inner was double offset which gave me an extra -0.5 Neg camber so im probably running -2.0. Understand that may be giving an illusion to being lower due to tuck, however i feel like if it was running positive it would still definitly be lower than oem shock. Overexposed some of the photos and added a red line to denote the top of tyre. 20220824_100243.jpg 20220824_100637.jpg Rear guard is 688mm Front is 666mm (measure from ground) 20220824_104914.jpg Pretty sure everything is sitting right as far as the shock and spring 20220822_105227.jpg 20220822_124216.jpg Appreciate the input. Also if you would like to share comments about ideal damping settings, currently running front and rear at 50% firm with a whiteline front sway bar in soft setting (approx 30% stiffer than oem) Do lots of high speed mountain/country roads everything from the rough stuff to nice and smooth. Want the sportiest ride while avoiding being kicked off the road if i do encounter a bad section of said roads. Cheers Last edited by AH370Z; 08-23-2022 at 08:54 PM.

08-23-2022, 08:55 PM	#2 (permalink)
SeeThruHead Track Member Join Date: Jun 2020 Location: Toronto Posts: 716 Drives: Red '18 Sport Manual Rep Power: 23498	Swift springs and Koni Yellows ride height same thing here. AH370Z and Initial Z like this. __________________ My Build thread STH Build Plan Thread Images too big fix here

08-24-2022, 07:49 AM	#3 (permalink)
BettyZ A True Z Fanatic Join Date: Aug 2018 Location: Chicagoland Age: 37 Posts: 5,261 Drives: A Garage Queen Rep Power: 2684371	I run mine at 50%. Have the full SPL catalog, including bushings, and it rides more comfortably than OEM sx moneypit likes this. __________________ '14 MB Nismo \| Boost Lab 6870 1.32 AR 553 HP / 471 ft.-lbs. Betty Mods

08-25-2022, 04:40 PM	#4 (permalink)
AH370Z Base Member Join Date: Jun 2009 Location: Australia - Sydney Posts: 168 Drives: 11' 370z, 13' E92 M3 Rep Power: 16	Anyone else with this combo confirm? I have emailed Koni who have said they have sold hundreds of these with no issues with height. They suggested checking the bump stop condition however ride height was fine with swifts and oem shock Last edited by AH370Z; 08-25-2022 at 06:15 PM.

08-25-2022, 07:00 PM	#5 (permalink)
BettyZ A True Z Fanatic Join Date: Aug 2018 Location: Chicagoland Age: 37 Posts: 5,261 Drives: A Garage Queen Rep Power: 2684371	Did you do the install? Were all the parts put back on properly? __________________ '14 MB Nismo \| Boost Lab 6870 1.32 AR 553 HP / 471 ft.-lbs. Betty Mods

08-25-2022, 08:18 PM	#6 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,180 Drives: 2011 Nismo GM 6M Rep Power: 2684437	On the front Koni's. The lower spring perch is 1/4" lower than stock. So the front will sit lower a 1/4" lower. Commonly asked question about Koni's. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

08-25-2022, 09:42 PM	#9 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,225 Drives: 15 370Z Nismo 6MT Rep Power: 214100	The solution is to get good coilovers Rusty and xxAGAVExx like this. __________________ OptionZero Build Thread

08-25-2022, 10:08 PM	#11 (permalink)
JerryDeluxe Enthusiast Member Join Date: Aug 2015 Location: San Diego, Ca Posts: 277 Drives: 16' 370z auto sport Rep Power: 10076	same setup here and yes the fronts will sit 1/4in lower. AH370Z, Rusty and BettyZ like this. __________________ Swift Spec R/KONI Yellow Shocks, SSR Executor CV01, GThaus, CF Lipkit, CF Hood/Fenders

08-26-2022, 01:25 AM	#13 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,225 Drives: 15 370Z Nismo 6MT Rep Power: 214100	When did the metric system become “my thing”? Maybe dont run a cheap spring/shock on a 500hp build. Rusty likes this. __________________ OptionZero Build Thread Last edited by OptionZero; 08-26-2022 at 01:29 AM.

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