Zl1 sway bar upgrade

20Bluezl1 · 11-22-2022, 05:59 PM

Ok so I have searched and searched and still can't seem to find my answer and which bar set up to run.

I'm looking to change my Zl1 F/R sway bars to an adjustable bar. I have read that guys run the Hotchkis 22118F on the front and BMR SB054 on the rear both using SPL links.

The question I have which I cant seem to find, and the answers I do find are all over the place.What are the spec between the stock FE4 bars which is the ZL1/SS1le to the ZL1 1le bars?

Also why aren't guy using the front and rear Hotchkis 22118 kit which it has the F/R.

My goal is to match the FEA stiffness or better yet have a little more stiffness that I can adjust.

WhiteMale · 11-23-2022, 06:42 AM

Im following this discussion now.

I've been planning on adding the BMR nonadjustable rear bar on my car, it's marked at +125% but doesn't state bar diameter and I don't know the stock diameter right now.
My driving style is that I prefer oversteer and this ZL1 feels like it understeers more than I like.

20Bluezl1 · 11-23-2022, 08:16 AM

Quote:

Originally Posted by WhiteMale

Im following this discussion now.

I've been planning on adding the BMR nonadjustable rear bar on my car, it's marked at +125% but doesn't state bar diameter and I don't know the stock diameter right now.
My driving style is that I prefer oversteer and this ZL1 feels like it understeers more than I like.

All the reading I did never states the % of stiffness for what bar. Is it over the regular SS, SS1le or zl1.

khcoaching · 11-23-2022, 08:59 AM

There are some really good threads on sway bars here on the form, but you have to dig. Try a search for "sway bar upgrade" and most pop up.

The go to for out cars is the Hotchkis front and BMR rear because their stiffness in relation to the stock bars is very very close, meaning 30/60/90% over stock equally front and back. (I just threw those numbers out)

End links are also important as is setting them up when installing them.

Ken

20Bluezl1 · 11-23-2022, 11:10 AM

Quote:

Originally Posted by khcoaching

There are some really good threads on sway bars here on the form, but you have to dig. Try a search for "sway bar upgrade" and most pop up.

The go to for out cars is the Hotchkis front and BMR rear because their stiffness in relation to the stock bars is very very close, meaning 30/60/90% over stock equally front and back. (I just threw those numbers out)

End links are also important as is setting them up when installing them.

Ken

Yes I have read the majority I could find but I can't seem to find any details on what they are basing there numbers from an SS or SS1le or zl1.

End links definitely SPL

WhiteMale · 11-23-2022, 11:52 AM

I've questioned which is 125% over stock, big question there...ZL1? 1LE? SS?

I'm looking at the BMR nonadjustable SB051

WhiteMale · 11-23-2022, 11:53 AM

Ill pop under my ZL1 when I get home and measure the bar, the BMR SB051 specs says it's 1.25"

20Bluezl1 · 11-23-2022, 03:44 PM

Quote:

Originally Posted by WhiteMale

Ill pop under my ZL1 when I get home and measure the bar, the BMR SB051 specs says it's 1.25"

Hotchkis website Specs: Front 40%/65%/90% stiffer than stock SS.

Does stock mean non SS 1le?

20Bluezl1 · 11-23-2022, 03:46 PM

Quote:

Originally Posted by WhiteMale

I've questioned which is 125% over stock, big question there...ZL1? 1LE? SS?

I'm looking at the BMR nonadjustable SB051

Definitely looking for an adjustable bar ideally middle setting as stiff as a ZLE.

*radz28* · 11-23-2022, 10:09 PM

ZL1/SS have stiffer bars than ZLE.

VR Baron · 11-27-2022, 09:04 PM

Quote:

Originally Posted by 20Bluezl1

Hotchkis website Specs: Front 40%/65%/90% stiffer than stock SS.

Does stock mean non SS 1le?

Site is wrong. Those are the numbers over your bars, which are same as ss1le.
Zl1 and ss 1le have 30mm x.156wall front and 27mm solid rear bars
Hotchkiss front bar is 1.25”x .25 wall

WhiteMale · 11-29-2022, 06:49 AM

Quote:

Originally Posted by WhiteMale

Ill pop under my ZL1 when I get home and measure the bar, the BMR SB051 specs says it's 1.25"

I was able to measure my stock ZL1 rear bar

1.08"
27.2mm

Zl1+911 · 11-29-2022, 07:25 AM

Does anyone know how the ZLE front and rear compare to standard Zl1? I am keen to investigate if there is any benefit to upgrade from ZLE to aftermarket thx

khcoaching · 11-29-2022, 09:32 AM

Quote:

Originally Posted by Zl1+911

Does anyone know how the ZLE front and rear compare to standard Zl1? I am keen to investigate if there is any benefit to upgrade from ZLE to aftermarket thx

They are smaller...... (I don't know exactly how much, it's in a few threads here)

11-22-2022, 05:59 PM	#1
20Bluezl1 Drives: 2020 Zl1 A10 Riverside Blue Join Date: Mar 2020 Location: NJ Posts: 1,219	Zl1 sway bar upgrade Ok so I have searched and searched and still can't seem to find my answer and which bar set up to run. I'm looking to change my Zl1 F/R sway bars to an adjustable bar. I have read that guys run the Hotchkis 22118F on the front and BMR SB054 on the rear both using SPL links. The question I have which I cant seem to find, and the answers I do find are all over the place.What are the spec between the stock FE4 bars which is the ZL1/SS1le to the ZL1 1le bars? Also why aren't guy using the front and rear Hotchkis 22118 kit which it has the F/R. My goal is to match the FEA stiffness or better yet have a little more stiffness that I can adjust.

11-23-2022, 08:59 AM	#4
khcoaching Drives: 2021 1SS 1LE Join Date: Nov 2020 Location: 98548 Posts: 611	There are some really good threads on sway bars here on the form, but you have to dig. Try a search for "sway bar upgrade" and most pop up. The go to for out cars is the Hotchkis front and BMR rear because their stiffness in relation to the stock bars is very very close, meaning 30/60/90% over stock equally front and back. (I just threw those numbers out) End links are also important as is setting them up when installing them. Ken __________________ Follow my build - https://www.camaro6.com/forums/showthread.php?t=594295

11-23-2022, 10:09 PM	#10
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,192 View My Garage	ZL1/SS have stiffer bars than ZLE. __________________ '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs

11-23-2022, 06:42 AM	#2
WhiteMale Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020 Location: MO Posts: 1,986	Im following this discussion now. I've been planning on adding the BMR nonadjustable rear bar on my car, it's marked at +125% but doesn't state bar diameter and I don't know the stock diameter right now. My driving style is that I prefer oversteer and this ZL1 feels like it understeers more than I like.

11-23-2022, 11:52 AM	#6
WhiteMale Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020 Location: MO Posts: 1,986	I've questioned which is 125% over stock, big question there...ZL1? 1LE? SS? I'm looking at the BMR nonadjustable SB051

11-23-2022, 11:53 AM	#7
WhiteMale Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020 Location: MO Posts: 1,986	Ill pop under my ZL1 when I get home and measure the bar, the BMR SB051 specs says it's 1.25"

11-29-2022, 07:25 AM	#13
Zl1+911 Drives: 997 GTS, ZL1 A10, ZLEM6, ZLEA10 Join Date: Dec 2017 Location: NYC/NJ Posts: 630	Does anyone know how the ZLE front and rear compare to standard Zl1? I am keen to investigate if there is any benefit to upgrade from ZLE to aftermarket thx

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