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Sway bar effects on ek chassis

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Old Nov 10, 2011 | 03:36 PM
  #1  
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Default Sway bar effects on ek chassis

Hey guys and gals,
I had a question in regards to sway bars.
I bought a eibach kit. Came with 26mm front and 17mm rear.

My question is would installing my 17mm rear swaybar and keeping my 21mm swaybar on the front induce slight oversteer or create excessive oversteer.

I would like to be neatural with a lean to oversteer.

I know the civic SI is 26mm front and 13mm rear. So I figured maybe a 17mm bar on the SI would balance it but not lend its self to oversteer.

Then I thought since the ex has a 21mm front bar running it with the 17mm would give me a little more oversteer. But I don't want a spin out machine.
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Old Nov 10, 2011 | 03:58 PM
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Default Re: Sway bar effects on ek chassis

Originally Posted by uvamosk
Hey guys and gals,
I had a question in regards to sway bars.
I bought a eibach kit. Came with 26mm front and 17mm rear.

My question is would installing my 17mm rear swaybar and keeping my 21mm swaybar on the front induce slight oversteer or create excessive oversteer.

I would like to be neatural with a lean to oversteer.

I know the civic SI is 26mm front and 13mm rear. So I figured maybe a 17mm bar on the SI would balance it but not lend its self to oversteer.

Then I thought since the ex has a 21mm front bar running it with the 17mm would give me a little more oversteer. But I don't want a spin out machine.
If you're on stock springs and shocks, removing the front bar entirely and adding a 30mm rear bar still wouldn't be enough to create a "spin out machine".
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Old Nov 10, 2011 | 06:10 PM
  #3  
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Default Re: Sway bar effects on ek chassis

Originally Posted by TunerN00b
If you're on stock springs and shocks, removing the front bar entirely and adding a 30mm rear bar still wouldn't be enough to create a "spin out machine".
I have not determined which specific spring/dampener setup I will be running yet.

I am at the tip of the ice berg when it comes to suspension knowledge. That said I know coilovers will allow weight to be shifted which has a great effect on over/under steer not to mention dampening force.

But all things equal which bar setup would yield result im looking for?
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Old Nov 11, 2011 | 10:12 AM
  #4  
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Default Re: Sway bar effects on ek chassis

Originally Posted by uvamosk
I have not determined which specific spring/dampener setup I will be running yet.

I am at the tip of the ice berg when it comes to suspension knowledge. That said I know coilovers will allow weight to be shifted which has a great effect on over/under steer not to mention dampening force.

But all things equal which bar setup would yield result im looking for?
Swaybars compliment the springs. The main contributor to how the car feels and behaves is still the springs.

If this is to be a purely street car, I would suggest using both bars that came in the kit. Decreased roll in corners, more responsive car, little to no reduction in ride quality, win-win. If later you find that the car isn't what you want, you can adjust from there (put stock front bar back on, change spring rates, etc...).

If this car is intended to be used for auto-x or track duty, then the suggestion would probably change, based on driver skill and confidence levels.
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Old Nov 20, 2011 | 04:39 PM
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Default Re: Sway bar effects on ek chassis

Hi,

We believe that some of what has been said here is not quite correct as a 30mm rear bar without a front bar would result in bad lift off oversteer meaning during a hard longer corner if you were to let off the accelerator the car would let go of the rear and more than likely spin or lose control.

To your original question of a larger rear sway bar upgrade is the best place to start on nearly all FWD cars. If after the rear is added you find it is a bit snappy in the rear then you can add a front sway bar to nuetralise this.

Best to try the rear first rather than buy both and have to remove the larger front later and go back to factory sway bar from too much understeer as you have allready paid for it.

Any further enquiries do not hesistate to contact us direct just email support@whiteline.com.au

Last edited by Whiteline; Nov 20, 2011 at 06:31 PM.
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Old Nov 20, 2011 | 04:44 PM
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Default Re: Sway bar effects on ek chassis

Originally Posted by Whiteline
Hi,

We believe that some of what has been said here is not quite correct as a 30mm rear bar without a front bar would result in bad lift off oversteer meaning during a hard longer corner if you were to let off the accelerator the car would let go of the rear and more than likely spin or lose control.

To your original question of a rear sway bar upgrade is the best place to start on nearly all FWD cars. If in the end you find it is a bit snappy in the rear then you can add a front sway bar to nuetralise this.

Best to try the rear first rather than buy both and have to remove the front later from too much over steer as you have allready paid for it.

Any further enquiries do not hesistate to contact us direct just email support@whiteline.com.au
Too much oversteer created from adding a front sway bar?

Wouldn't removing the front sway bar make things even worse?
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Old Nov 20, 2011 | 05:24 PM
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Default Re: Sway bar effects on ek chassis

Originally Posted by 98civdx
Too much oversteer created from adding a front sway bar?

Wouldn't removing the front sway bar make things even worse?
No in my quote it says after adding a rear sway bar if there is too much oversteer then add a front bar to nuetralise this as we do make our sway bars in allot of cases as pairs but in FWD cars the rear is often enough of an upgrade depending on driving style or even spring rates or tyre quality.

I will edit it so it reads easier maybe it is not that clear what was said.
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Old Nov 20, 2011 | 06:18 PM
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Default Re: Sway bar effects on ek chassis

Still confused.

You said this.

Best to try the rear first rather than buy both and have to remove the front later from too much over steer as you have allready paid for it.


Maybe I am just reading it wrong, but it sounds like saying try a rear bar first, ( I agree)
Rather then buying both a larger front, and rear sway, and then to have remove the front due to too much oversteer.


Maybe I am just confused, or reading it wrong.
I am not trying to be rude. I know your company, and from what I have noticed/been told you make good stuff.
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Old Nov 20, 2011 | 06:30 PM
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Default Re: Sway bar effects on ek chassis

Originally Posted by 98civdx
Still confused.

You said this.

Best to try the rear first rather than buy both and have to remove the front later from too much over steer as you have allready paid for it.


Maybe I am just reading it wrong, but it sounds like saying try a rear bar first, ( I agree)
Rather then buying both a larger front, and rear sway, and then to have remove the front due to too much oversteer.


Maybe I am just confused, or reading it wrong.
I am not trying to be rude. I know your company, and from what I have noticed/been told you make good stuff.

Sorry for the confusion but yes it is better to upgrade the rear first than to buy both back and front as a pair and then find out the front is too large and have to remove it due to understeer .I have worded it incorrectly.

We just do not want to see some one buy something they may not need as we are not aboput pushing our product we believe in making people happy with the product and service and they come back for more .
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Old Nov 20, 2011 | 06:36 PM
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Default Re: Sway bar effects on ek chassis

Originally Posted by Whiteline
Sorry for the confusion but yes it is better to upgrade the rear first than to buy both back and front as a pair and then find out the front is too large and have to remove it due to understeer .I have worded it incorrectly.

We just do not want to see some one buy something they may not need as we are not aboput pushing our product we believe in making people happy with the product and service and they come back for more .
That was what I was thinking. lol

I think that is great, too many companys are quick to push their products on people.
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Old Sep 3, 2012 | 08:30 AM
  #11  
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Icon7 Re: Sway bar effects on ek chassis

Hello.

I didnt have it clear also.

I have a Ek9 with coilovers and roll cage and I will use it for road racing only on fast long tracks. Can I use a rear sway bar only? This means NO FRONT BAR, only rear. If so, which size would you recommend ?

Thank you for your help!

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Old Sep 3, 2012 | 02:35 PM
  #12  
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Default Re: Sway bar effects on ek chassis

Originally Posted by Diego Ortega
Hello.

I didnt have it clear also.

I have a Ek9 with coilovers and roll cage and I will use it for road racing only on fast long tracks. Can I use a rear sway bar only? This means NO FRONT BAR, only rear. If so, which size would you recommend ?

Thank you for your help!

No it means upgrade the rear first but leave the factory front sway bar and then test the car to see the outcome.

Each car will be different depending on tyres used ,spring rates and driver input etc so best to upgrade rear first see if it is all you need to gain a nuetral feel or then if needed you add parts rather than just put a whole catalogue into the car and have it either undertseer or oversteer and have to work out what to remove or change to solve it. One thing at a time and test the feel and see what the product you paid for is doing for you is best in my opinion .
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