Quiet sway bars - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

protpibe · 05-02-2014, 04:24 PM

Can anyone recommend a front and rear sway bar combo that is SILENT?

I rolled the dice on a set of Hotchkis sway bars and they clunk like crazy. It's both the front and rear, and I've tried a few different endlinks. Tightening the links quietens them down a bit, but not for long. They usually stay quiet for a couple of days then go back to making noise. I've tried loctite and lock washers, but they keep backing off a very slight amount. I'm thinking the bolt holes on the bars themselves are slightly larger than the endlink bolt diameter.

Anyways, can anyone recommend a front and rear sway bar set that is dead silent? I just can't take the clickiing/clunk noises anymore.

I'm thinking Perrin

7thgear · 05-02-2014, 04:27 PM

a swaybar by itself cannot clunk, it has no moving parts

if it is clunking, there is metal on metal contact due to binding and improper articulation

Racecomp Engineering · 05-02-2014, 04:29 PM

Are your bushings nice and lubed up? Wrapping the bar in teflon tape at the bushings helps as well.

- Andy

Mikepage · 05-02-2014, 08:15 PM

I run Hotchkis in front and no noise for me. What is your drop?

protpibe · 05-02-2014, 08:26 PM

Quote:

Originally Posted by Mikepage

I run Hotchkis in front and no noise for me. What is your drop?

About 1.5"

Are you using OEM end links?

Gunman · 05-02-2014, 08:34 PM

I'm going to be installing a set of Hotckis bars tomorrow, I'm curious what's making the noise.

mav1178 · 05-02-2014, 08:45 PM

Quote:

Originally Posted by protpibe

Tightening the links quietens them down a bit, but not for long. They usually stay quiet for a couple of days then go back to making noise. I've tried loctite and lock washers, but they keep backing off a very slight amount. I'm thinking the bolt holes on the bars themselves are slightly larger than the endlink bolt diameter.

Always tighten bolts (especially on sway bars) with the wheels on the ground. You'll have to elevate the car using blocks of wood or ramps, but it's a must.

Otherwise, you're just binding/preloading the links and they'll always become "loose" after you start driving the car.

-alex

colHolm · 05-02-2014, 08:45 PM

check the torque on your top nuts.

Mikepage · 05-02-2014, 08:51 PM

Quote:

Originally Posted by protpibe

About 1.5"

Are you using OEM end links?

0.8" on the front and oem link yes.

protpibe · 05-02-2014, 09:14 PM

Quote:

Originally Posted by colHolm

check the torque on your top nuts.

The top hats on the coilovers?

Sent from my HTC One using Tapatalk

colHolm · 05-02-2014, 10:21 PM

Quote:

Originally Posted by protpibe

The top hats on the coilovers?

Sent from my HTC One using Tapatalk

Yeah, over the winter mine had backed off about a quarter turn, and I was getting a lot of clunking. Tightened them up, and now the suspension is quiet.

wparsons · 05-02-2014, 11:18 PM

Are you sure you aren't getting any knocking from the swaybar to lower control arms? At a 1.5" drop and stock end links I would bet that's a strong possibility.

colHolm · 05-02-2014, 11:23 PM

Quote:

Originally Posted by wparsons

Are you sure you aren't getting any knocking from the swaybar to lower control arms? At a 1.5" drop and stock end links I would bet that's a strong possibility.

That was my thought when I was hearing the clunking, I am lowered about 1.5 with oe endlinks too. No contact, just slightly loose top nuts. It is easier to check them first.

protpibe · 05-02-2014, 11:29 PM

The stock end links are too long. I went to whitelines , same knock. Got the oems shortened 50mm, same knock

It's fine at first but then the bolts back off a bit and it comes back. I'm pretty sure the bolt hole on the bar is slightly too large and it moves around

Sent from my HTC One using Tapatalk

05-02-2014, 04:24 PM	#1
protpibe Senior Member Join Date: Oct 2013 Drives: 4-Runner Sport - 13' BRZ SportTech Location: Winnipeg Posts: 1,395 Thanks: 253 Thanked 839 Times in 459 Posts Mentioned: 18 Post(s) Tagged: 0 Thread(s)	Quiet sway bars Can anyone recommend a front and rear sway bar combo that is SILENT? I rolled the dice on a set of Hotchkis sway bars and they clunk like crazy. It's both the front and rear, and I've tried a few different endlinks. Tightening the links quietens them down a bit, but not for long. They usually stay quiet for a couple of days then go back to making noise. I've tried loctite and lock washers, but they keep backing off a very slight amount. I'm thinking the bolt holes on the bars themselves are slightly larger than the endlink bolt diameter. Anyways, can anyone recommend a front and rear sway bar set that is dead silent? I just can't take the clickiing/clunk noises anymore. I'm thinking Perrin __________________ Top Tier Imports - Check out my build journal HERE

05-02-2014, 04:27 PM	#2
7thgear i'm sorry, what? Join Date: Jan 2012 Drives: Canada Location: I rock a beat harder than you can beat it with rocks Posts: 4,399 Thanks: 357 Thanked 2,508 Times in 1,268 Posts Mentioned: 40 Post(s) Tagged: 3 Thread(s)	a swaybar by itself cannot clunk, it has no moving parts if it is clunking, there is metal on metal contact due to binding and improper articulation __________________ don't you think if I was wrong, I'd know it?

05-02-2014, 08:15 PM	#4
Mikepage Senior Member Join Date: Oct 2012 Drives: Scion FR-S 2013 Raven Location: Canada Posts: 690 Thanks: 380 Thanked 186 Times in 103 Posts Mentioned: 2 Post(s) Tagged: 2 Thread(s)	I run Hotchkis in front and no noise for me. What is your drop? __________________ *o= FR-S =o*

05-02-2014, 11:29 PM	#14
protpibe Senior Member Join Date: Oct 2013 Drives: 4-Runner Sport - 13' BRZ SportTech Location: Winnipeg Posts: 1,395 Thanks: 253 Thanked 839 Times in 459 Posts Mentioned: 18 Post(s) Tagged: 0 Thread(s)	The stock end links are too long. I went to whitelines , same knock. Got the oems shortened 50mm, same knock It's fine at first but then the bolts back off a bit and it comes back. I'm pretty sure the bolt hole on the bar is slightly too large and it moves around Sent from my HTC One using Tapatalk __________________ Top Tier Imports - Check out my build journal HERE

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05-02-2014, 04:29 PM	#3
Racecomp Engineering Join Date: Nov 2011 Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI Location: Severn, MD Posts: 5,517 Thanks: 3,541 Thanked 7,412 Times in 3,032 Posts Mentioned: 310 Post(s) Tagged: 9 Thread(s)	Are your bushings nice and lubed up? Wrapping the bar in teflon tape at the bushings helps as well. - Andy

05-02-2014, 08:45 PM	#8
colHolm Default User Title Join Date: Mar 2011 Drives: FR-S Location: Whitby, ON Posts: 688 Thanks: 182 Thanked 349 Times in 118 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	check the torque on your top nuts.

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