Eibach Sway Bars

B&W_Evader · 02-17-2015, 11:02 AM

Set mine to stiffest on the front, middle on the rear. Very happy with the setup.

My review when installed is here: (page2)

Eibach Sway Bar - Review

6mtg37s · 02-16-2015, 09:37 PM

I wonder if the car will be less predictable with the stiffer settings. Have you guys felt any change with the front being on 1 or 2?

Hotrodz · 02-17-2015, 09:36 PM

I have Eibach's set at soft on front and the middle in the rear at first they it seemed to over steer quite a bit when I was on lowering spring. Now on coils it is much less. I also have SPL front A arms, rear camber arms and SPL traction bars. The car seem to behave better once I went to coil overs. I think the best advice I hear over and over again is to change one thing at a time a see how it works. I know every time I add suspension upgrades and get alignment the car gets better. I figure I will start messing with the sway bars once I'm done with the suspension up grades. I got SPL upper and lower bushing and rear knuckle bushing to be installed some time in the next few weeks...then I will tune things a bit.

I also think we are all different to a degree in how drive and what we are comfortable with. Some like a tad of over steer as it can be controlled by a little braking, while other like a little under steer as it can be controlled by adding throttle. Most modern sport cars are setup for under steer because people when they panic tend to hit the brake!!!

nasm · 02-19-2021, 11:46 AM

Quote:

Originally Posted by Hotrodz

I have Eibach's set at soft on front and the middle in the rear at first they it seemed to over steer quite a bit when I was on lowering spring. Now on coils it is much less. I also have SPL front A arms, rear camber arms and SPL traction bars. The car seem to behave better once I went to coil overs. I think the best advice I hear over and over again is to change one thing at a time a see how it works. I know every time I add suspension upgrades and get alignment the car gets better. I figure I will start messing with the sway bars once I'm done with the suspension up grades. I got SPL upper and lower bushing and rear knuckle bushing to be installed some time in the next few weeks...then I will tune things a bit.

I also think we are all different to a degree in how drive and what we are comfortable with. Some like a tad of over steer as it can be controlled by a little braking, while other like a little under steer as it can be controlled by adding throttle. Most modern sport cars are setup for under steer because people when they panic tend to hit the brake!!!

It seems you change the Eibach with Hotchkis because while reading your signature (your car mods) I couldn't find the Eibach there .. can you please summarize why? in fact I thought the Eibach will be a good choice for track and weekend not DD thu.

thanks and regards,
NASM

Hotrodz · 02-19-2021, 02:01 PM

Quote:

Originally Posted by nasm

It seems you change the Eibach with Hotchkis because while reading your signature (your car mods) I couldn't find the Eibach there .. can you please summarize why? in fact I thought the Eibach will be a good choice for track and weekend not DD thu.

thanks and regards,

NASM

Wow, a lot has changed since I made that post. Long story short stiffer is better up front and as stated above it will not impact driving on the street. The Z tends to under steer so a stiffer front bar helps to minimize that. Since that post I have added every SPL suspension part possible to my Z.

Sent from my SM-G965U using Tapatalk

nasm · 02-19-2021, 07:54 PM

Quote:

Originally Posted by Hotrodz

Wow, a lot has changed since I made that post. Long story short stiffer is better up front and as stated above it will not impact driving on the street. The Z tends to under steer so a stiffer front bar helps to minimize that. Since that post I have added every SPL suspension part possible to my Z.

Sent from my SM-G965U using Tapatalk

Appreciate your reply Hotrodz.
And I guess you are using the stock one for the rear? Is that right? If yes, then, Have you ever tried using the softest setting on the rear bar? It might work ..
Well, I am trying to find out why people are not using the Hotchkis rear bar even with softest setting!!??

Sent from my SM-G980F using Tapatalk

Hotrodz · 02-20-2021, 08:42 AM

Quote:

Originally Posted by nasm

Appreciate your reply Hotrodz.
And I guess you are using the stock one for the rear? Is that right? If yes, then, Have you ever tried using the softest setting on the rear bar? It might work ..
Well, I am trying to find out why people are not using the Hotchkis rear bar even with softest setting!!??

Sent from my SM-G980F using Tapatalk

I currently run no rear bar for track as it helps the car rotate better and which means better traction out of turns. Some run with a bar depending on their wheel and coilover setup. I may end up running the OEM bar to help balance out the effects of my aero setup once I can get her to the track and shake her down. Generally speaking no bar or a light rear bar is will improve track performance.

gomer_110 · 02-19-2021, 12:30 PM

The 370's need the stiffest front sway bar you can find to improve the handling. The Hotchkis is just a stiffer bar than the Eibach.

There is no sway bar offered for our car that will make the ride quality so bad you wouldn't drive it on the street. The only reason mine doesn't see more street driving is the custom front splitter that would get damaged by many of the roads in my area.

RanRich · 12-13-2021, 10:33 AM

Just installed their front bar on my car on the soft setting last week, stock rear bar. Wow what a difference. Car feels so much less nervous in corners, and turn in is really direct.

Didn't feel more understeer as mentioned above. My impression was it dialed in the front roll on turn in so it wasn't just leaning on the outside tire, which meant I had a better understanding of what the rear was doing.

I'd say a front bar is an absolute must for these cars. Cannot overstate how much better it drives.

DeusExMaxima · 12-14-2021, 12:42 AM

I thought about getting bars from a Nismo. But after reading this thread I think I'm going with a front Eibach and stock rear bar to go with my Nismo suspension.

OptionZero · 12-14-2021, 11:21 AM

save your money?

Dentt42 · 01-10-2022, 07:04 PM

I’ll ask here since it’s the most recent thread on the topic. What is it about this chassis that makes a stiffer front bar counteract under steer? With other cars I’ve worked on, and every bit of literature I’ve referenced, increasing rear stiffness increases oversteer, as does softening the front bar.

I’ve got a street-driven G37 coupe, and can’t figure out how to pick a sway bar upgrade. On previous projects, it’s been a no-brainer.

OptionZero · 01-10-2022, 10:14 PM

The front of our car is too soft in stock form

Too soft can result in less grip, just like too stiff.

As for what to pick, you could spend hours on theoretical sway bar effects. Or you can just try what track drivers with this chassis have done and run the stiffest bar available

If you find it does not suit you, just change get it. It’s a sway bar, it’s not a permanent move

The general concept of “softer end has more grip” is a broad generalization. If you had super soft rear springs for example, more weight would be transferred to the rear wheels, and is why Gran Turismo teaches people that this increase rear grip.
But in real life overly soft rear end that transfer too much weight too quickly to that end will lead to a loss of control just as an overly stiff rear spring would that prevents weigh transfer

It’s about reaching a certain baseline of stiffness, it just …being stiff or soft generally

02-17-2015, 11:02 AM	#1 (permalink)
B&W_Evader Track Member Join Date: Aug 2011 Location: CA Posts: 972 Drives: slower than before Rep Power: 387	Set mine to stiffest on the front, middle on the rear. Very happy with the setup. My review when installed is here: (page2) Eibach Sway Bar - Review onzedge likes this. __________________ \|RIP\|6spd-sport\|OSG-LSD\|XP8\|RBF600\|Eibach Sways\|RE-71R\|FI-34Row\|Gen3-CAI\|Yaw P.S.\|

02-17-2015, 09:36 PM	#3 (permalink)
Hotrodz A True Z Fanatic Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684385	I have Eibach's set at soft on front and the middle in the rear at first they it seemed to over steer quite a bit when I was on lowering spring. Now on coils it is much less. I also have SPL front A arms, rear camber arms and SPL traction bars. The car seem to behave better once I went to coil overs. I think the best advice I hear over and over again is to change one thing at a time a see how it works. I know every time I add suspension upgrades and get alignment the car gets better. I figure I will start messing with the sway bars once I'm done with the suspension up grades. I got SPL upper and lower bushing and rear knuckle bushing to be installed some time in the next few weeks...then I will tune things a bit. I also think we are all different to a degree in how drive and what we are comfortable with. Some like a tad of over steer as it can be controlled by a little braking, while other like a little under steer as it can be controlled by adding throttle. Most modern sport cars are setup for under steer because people when they panic tend to hit the brake!!! onzedge likes this. __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

02-19-2021, 12:30 PM	#8 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36941	The 370's need the stiffest front sway bar you can find to improve the handling. The Hotchkis is just a stiffer bar than the Eibach. There is no sway bar offered for our car that will make the ride quality so bad you wouldn't drive it on the street. The only reason mine doesn't see more street driving is the custom front splitter that would get damaged by many of the roads in my area. Rusty and Hotrodz like this. __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

12-13-2021, 10:33 AM	#9 (permalink)
RanRich Enthusiast Member Join Date: Mar 2015 Location: St. Louis Posts: 425 Drives: 09 PG Sport M6 Rep Power: 3373	Just installed their front bar on my car on the soft setting last week, stock rear bar. Wow what a difference. Car feels so much less nervous in corners, and turn in is really direct. Didn't feel more understeer as mentioned above. My impression was it dialed in the front roll on turn in so it wasn't just leaning on the outside tire, which meant I had a better understanding of what the rear was doing. I'd say a front bar is an absolute must for these cars. Cannot overstate how much better it drives. gomer_110, Rusty, Hotrodz and 1 others like this. __________________ AAM \| Dynosty \| Ecutek \| Eibach \| Hawk \| H&R \| Nismo \| Stillen \| Stoptech \| Z1

12-14-2021, 11:21 AM	#11 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,255 Drives: 15 370Z Nismo 6MT Rep Power: 214100	save your money? JARblue, Rusty, Hotrodz and 2 others like this. __________________ OptionZero Build Thread

02-16-2015, 09:37 PM	#2 (permalink)
6mtg37s Base Member Join Date: Jul 2010 Location: Los Angeles, CA Posts: 102 Drives: 10 G37S 6MT Rep Power: 15	I wonder if the car will be less predictable with the stiffer settings. Have you guys felt any change with the front being on 1 or 2?

12-14-2021, 12:42 AM	#10 (permalink)
DeusExMaxima Base Member Join Date: Feb 2015 Location: Southern California Posts: 80 Drives: 2010 red roadster Rep Power: 6721	I thought about getting bars from a Nismo. But after reading this thread I think I'm going with a front Eibach and stock rear bar to go with my Nismo suspension.

01-10-2022, 07:04 PM	#12 (permalink)
Dentt42 Base Member Join Date: Apr 2019 Location: Central Florida Posts: 82 Drives: 2012 G37 black 6spd Rep Power: 7	I’ll ask here since it’s the most recent thread on the topic. What is it about this chassis that makes a stiffer front bar counteract under steer? With other cars I’ve worked on, and every bit of literature I’ve referenced, increasing rear stiffness increases oversteer, as does softening the front bar. I’ve got a street-driven G37 coupe, and can’t figure out how to pick a sway bar upgrade. On previous projects, it’s been a no-brainer.

01-10-2022, 10:14 PM	#13 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,255 Drives: 15 370Z Nismo 6MT Rep Power: 214100	The front of our car is too soft in stock form Too soft can result in less grip, just like too stiff. As for what to pick, you could spend hours on theoretical sway bar effects. Or you can just try what track drivers with this chassis have done and run the stiffest bar available If you find it does not suit you, just change get it. It’s a sway bar, it’s not a permanent move The general concept of “softer end has more grip” is a broad generalization. If you had super soft rear springs for example, more weight would be transferred to the rear wheels, and is why Gran Turismo teaches people that this increase rear grip. But in real life overly soft rear end that transfer too much weight too quickly to that end will lead to a loss of control just as an overly stiff rear spring would that prevents weigh transfer It’s about reaching a certain baseline of stiffness, it just …being stiff or soft generally Averying and Dentt42 like this. __________________ OptionZero Build Thread Last edited by OptionZero; 01-10-2022 at 10:21 PM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[FOR SALE] Eibach Sway Bars	jake.demeis	Parts for sale (Private Classifieds)	3	08-29-2014 09:09 PM
[FOR SALE] Eibach sway bars	NoirG	Parts for sale (Private Classifieds)	6	05-19-2014 08:11 AM
[FOR SALE] Eibach F/R 370z sway bars 6393.320	chicklet	Parts for sale (Private Classifieds)	11	03-18-2013 06:39 PM
Got my Eibach sway bars today! Pictures	Elia Cid	Brakes & Suspension	18	12-20-2010 02:48 PM
Eibach Sway Bars	Marco_xyz	Brakes & Suspension	3	06-28-2010 08:56 PM