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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Front Sway Bar Orientation Question



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      07-20-2017, 10:48 AM   #45
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So what you guys are showing is that the sway bar mounting tabs should point DOWN.

I think every sway bar tuning guide in existence says to adjust the end-links so that the sway bar mounting tabs are horizontal to the ground. Problem with that in our case is that we have a very unique sway bar design. It's not that straightforward for us apparently lol

I do agree with you guys though that I am probably wrong and that it should point down. It makes the most sense for the clearance issues you mentioned and the shape of the bar. If your rotate the bar up more so that the tab is horizontal then you run into the control arm (but, I do believe you'll get better leverage on the sway bar).

Also, I get what you are trying to say about adjustable end-links and pre-load. That is indeed how you dial out PRELOAD (by adjusting the end-link lengths a bit). However, you are completely wrong about how getting the bar close to the stock position should result in close to 0 preload. You can mount the sway bar in any orientation you want without pre-load. All you will have to do is make the end-links longer or shorter to accommodate for the different position of the sway bar...

The purpose of adjustable end-links is not to simply adjust out pre-load. Adjustable endlinks need to be changed in length as ride height changes to keep the sway bar in the ideal position... that has NOTHING to do with pre-load. Just trying to clarify there is a difference...
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      07-20-2017, 10:53 AM   #46
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Quote:
Originally Posted by tdavis42 View Post


Pivot point being where the swaybar mounts to the frame. Try and get the ends as parallel with that mounting point and it will be most effective.
Quote:
Originally Posted by Jeff@TopGearSolutions View Post

Wish I said this earlier LOL
as I have shown in post #38 and tried to explain previously but don't have big name behind me I even post photos from factory setup showing the sway bar ends in almost parallel position with the pivot point.
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      07-20-2017, 10:55 AM   #47
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Quote:
Originally Posted by feuer View Post
as I have shown in post #38 and tried to explain previously but don't have big name behind me I even post photos from factory setup showing the sway bar ends in almost parallel position with the pivot point.
But you need to use the correct words to describe what you are trying to say.

I can tell you to jump off that thing and land in that thing but until I use the correct words you would never know what I was really trying to say.

This is what differentiates you from an industry professional.
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      07-20-2017, 10:59 AM   #48
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Quote:
Originally Posted by tdavis42 View Post
But you need to use the correct words to describe what you are trying to say.

I can tell you to jump off that thing and land in that thing but until I use the correct words you would never know what I was really trying to say.

This is what differentiates you from an industry professional.
I truly apologize that I couldn't explain this well enough in English that is my 4th language for you to be able to understand who's English is probably 1st language.
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      07-20-2017, 11:00 AM   #49
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Quote:
Originally Posted by bbnks2 View Post
So what you guys are showing is that the sway bar mounting tabs should point DOWN.

I think every sway bar tuning guide in existence says to adjust the end-links so that the sway bar mounting tabs are horizontal to the ground. Problem with that in our case is that we have a very unique sway bar design. It's not that straightforward for us apparently lol
Has nothing to do with the shape of the sway bar endings and which direction they are pointing to.
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      07-20-2017, 11:00 AM   #50
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Originally Posted by feuer View Post
I truly apologize that I couldn't explain this well enough in English that is my 4th language for you to be able to understand who's English is probably 1st language.
And we come full circle to why I never trust what people say on the internet.
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      07-20-2017, 11:11 AM   #51
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Quote:
Originally Posted by tdavis42 View Post
Because you are just another nobody on the internet and when I call a company that sells these items I trust them more than you. Just like I will take Joe's word over your word any day. Not to be mean but I don't know you, seen none of your credentials, and are not employed by someone that I trust.

Just the way I look at things. Allot of people try to be helpful on the internet but end up making things worse.
Quote:
Originally Posted by Jeff@TopGearSolutions View Post

Therefore, I'd use the stock end link as guide, first. Then adjust them according to how much you lowered the vehicle, approximately. IE 10MM drop/ 10MM less length from stock end link.
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Originally Posted by feuer View Post
I say is the other way. Is geometry and to maintain as designed angles of link and sway bar they need to be longer. Shorter on the rear axle.
Quote:
Originally Posted by tdavis42 View Post
And we come full circle to why I never trust what people say on the internet.
Yes, should re-read the thread as your English language comprehensions isn't on par. The nobody on the internet got this correctly.
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      07-20-2017, 11:17 AM   #52
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Originally Posted by feuer View Post
Yes, should re-read the thread as your English language comprehensions isn't on par. The nobody on the internet got this correctly.
I'm gonna play along

Last word
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      07-20-2017, 11:29 AM   #53
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      07-20-2017, 11:32 AM   #54
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Originally Posted by feuer View Post
tdavis42
Last word

Edit: it's a shame your ego and my playfulness has caused the solution to this problem to get lost in the thread.
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      07-20-2017, 11:36 AM   #55
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Quote:
Originally Posted by tdavis42 View Post
Last word

Edit: it's a shame your ego and my playfulness has caused the solution to this problem to get lost in the thread.
Is OK, you wanted to play. Also, people that understand English, unlike yourself, will find the relevant info.
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      07-20-2017, 11:37 AM   #56
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Originally Posted by feuer View Post
Is OK, you wanted to play. Also, people that understand English, unlike yourself, will find the relevant info.
Last word
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      07-20-2017, 11:49 AM   #57
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You guys love to play with semantics, welcome to the internet.

Quote:
Originally Posted by bbnks2 View Post
So what you guys are showing is that the sway bar mounting tabs should point DOWN.

I think every sway bar tuning guide in existence says to adjust the end-links so that the sway bar mounting tabs are horizontal to the ground. Problem with that in our case is that we have a very unique sway bar design. It's not that straightforward for us apparently lol

I do agree with you guys though that I am probably wrong and that it should point down. It makes the most sense for the clearance issues you mentioned and the shape of the bar. If your rotate the bar up more so that the tab is horizontal then you run into the control arm (but, I do believe you'll get better leverage on the sway bar).

Also, I get what you are trying to say about adjustable end-links and pre-load. That is indeed how you dial out PRELOAD (by adjusting the end-link lengths a bit). However, you are completely wrong about how getting the bar close to the stock position should result in close to 0 preload. You can mount the sway bar in any orientation you want without pre-load. All you will have to do is make the end-links longer or shorter to accommodate for the different position of the sway bar...

The purpose of adjustable end-links is not to simply adjust out pre-load. Adjustable endlinks need to be changed in length as ride height changes to keep the sway bar in the ideal position... that has NOTHING to do with pre-load. Just trying to clarify there is a difference...
Yes they should point down just like stock.

It is straight forward, people like to just sound like they know more so they complicate stuff. (not directed at you necessarily).

Although you can mount the sway bar in various states (within reason of clearance) the only state that makes sense (for the goals and purposes of this thread and most people) is near the stock location which would by no accident be horizontal to the pivot point which it's mounted on the sub frame. Any other state is trying to achieve something else that is not necessary to discuss in this setting. Remarks like these take things off on a tangent. <--- Semantics

More semantics on pre load. Yes the MAIN and PRIMARY goal of end links is reducing pre load... why? Because pre load was the reason you wanted adjustable end links... why? Because the stock end links were not the right length causing excess pre load when the car was lowered...

It's the internet so everyone is wrong or right - just depends on who wants to admit what is what first. I'll admit I made an erroneous remark about lowering the vehicle = reducing length on end links - it's actually the opposite. I can admit when I'm wrong as that was a simple mix up.

Last edited by Jeff@TopGearSolutions; 07-20-2017 at 11:56 AM..
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      07-20-2017, 11:51 AM   #58
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You guys just had to say something.

Que Feuer with a comment in 3 seconds
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      07-20-2017, 11:59 AM   #59
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Quote:
Originally Posted by tdavis42 View Post
You guys just had to say something.

Que Feuer with a comment in 3 seconds
No, me first...

(I was genuinely just trying to help).
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      07-20-2017, 12:02 PM   #60
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Quote:
Originally Posted by Jeff@TopGearSolutions View Post
Although you can mount the sway bar in various states (within reason of clearance) the only state that makes sense (for the goals and purposes of this thread and most people) is near the stock location which would by no accident be horizontal to the pivot point which it's mounted on the sub frame.
This is the correct answer...for those that can't comprehend this, sell your car and buy a Schwinn.
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      07-20-2017, 01:42 PM   #61
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I really do appreciate all the feedback. I didnt get out to the shop last night but this is what Im taking away from all of this and how Im going to approach the situation.

- With the car on the ground Im going to mount the OEM end links just to the strut and let it dangle.
- I'll then rotate the sway bar so that its near the mounting point of the OEM end link's loose end, just as a point of reference and not really worrying too much about the orientation of the sway bar other than making sure it doesnt hit anything like the control arms
- Then I'll swap out the OEM end link for the adjustable one, adjust the length as to not put any load/pre-load on the sway bar and so tat it slides right in to the sway bar and mounting point of the strut and tighten everything up.

Sound about right?

I think my focus on the sway bar orientation was unwarranted and I apologize as I thought this was detrimental to the function of it. I wasnt aware that there was balance or relationship between the two that needed to be found in terms of mounting the sway bar and end link hardware.

In my mind, the sway bar was to be in X position and that was a static position that HAD to be and that the end links were meant to adjust to the position of the sway bar and not that they actually should be mounted in relation to each other.

I dont always relay my thoughts in a manner that make sense to others and fumble with words. The Internet only exacerbates this since the words have no emotion or emphasis behind them but I have taken away a lot from all your replies and I think I got it from here. I appreciate all your time and input, thank you all again!
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