Acura RSX DC5 & Honda Civic EP3 Includes DC5 Integra Type R & 5dr Civic hatchback

itr header w. EM1 sway bar

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Old Aug 21, 2007 | 12:39 PM
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Default itr header w. EM1 sway bar

I was told that i could use an em1 sway bar to clear my ITR header? just wanted to double check I can't find the previous thread about it..... also, i heard that the EM1 sway bar is 25mm, is this going to effect performance around turns? under steer more?
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Old Aug 21, 2007 | 12:51 PM
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Default Re: itr header w. EM1 sway bar (dc5Aspec'd)

I think you're okay ... I keep hearing the ITR header will clear the EM1 bar. Yes, a larger front sway bar will induce more understeer.
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Old Aug 21, 2007 | 01:47 PM
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Default Re: itr header w. EM1 sway bar (FullEP3)

well im glad to hear that, i canceled the type R front sway bar that was 150 to buy the 50 dollar em1 sway bar.

enough under steer that I'll notice?

EDIT: also how big is our rear sway bar?


Modified by dc5Aspec'd at 11:59 PM 8/21/2007
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Old Aug 21, 2007 | 02:08 PM
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Default Re: itr header w. EM1 sway bar (dc5Aspec'd)

Depends on the driver ... I noticed car behavior changes when I swaped out my sway bars however I do spend a good bit of time on track pushing my car around.

The stock rear sway should be a solid 19mm bar
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Old Aug 21, 2007 | 03:05 PM
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wrong, the stock rear sway for the 02-04 is 19mm. the stock rear sway for the 05-06 is 21mm
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Old Aug 21, 2007 | 07:16 PM
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Default Re: (NTCustoms)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NTCustoms &raquo;</TD></TR><TR><TD CLASS="quote">wrong, the stock rear sway for the 02-04 is 19mm. the stock rear sway for the 05-06 is 21mm</TD></TR></TABLE>


got it ... didn't even notice the year ...
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Old Aug 21, 2007 | 08:04 PM
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Does anyone know if the EM1 sway bar will be lesser quality then my current sway bar, body roll, or will the front end be stiffer since its a 25mm vs. the type s 22mm? And, why does progressive go with a 27mm front sway bar and only a 25mm rear? And one more for you guys, what rear sway bar do you guys suggest I go with to balance the car out? Thanks for all your input!
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Old Aug 21, 2007 | 08:13 PM
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Default Re: (dc5Aspec'd)

I run the em2 sway bar up front with the itr 22mm in the rear..Rides great
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Old Aug 22, 2007 | 01:40 AM
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Default Re: (dc5Aspec'd)

bigger bar = stiffer ... hence less body roll

ITR rear sway or larger ... esp if you plan on running a larger front bar. Mugen sells a 32mm rear sway if feel a little crazy!
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Old Aug 22, 2007 | 06:28 AM
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Default Re: (TheBlue5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheBlue5 &raquo;</TD></TR><TR><TD CLASS="quote">I run the em2 sway bar up front with the itr 22mm in the rear..Rides great</TD></TR></TABLE>

so you have the ITR header?


the thing that confuses me is why is the ITR sway bar 21mm and our stock one is 22mm? The ITR rides tighter, but it has a softer sway bar??
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Old Aug 22, 2007 | 07:22 AM
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Default Re: (dc5Aspec'd)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dc5Aspec’d &raquo;</TD></TR><TR><TD CLASS="quote">


the thing that confuses me is why is the ITR sway bar 21mm and our stock one is 22mm? The ITR rides tighter, but it has a softer sway bar??</TD></TR></TABLE>

The ITR has stiffer springs and shocks to match. Swaybars tune the car, and to find a good balance in handling different diameters are chosen.

Personally a 25mm+ front sway is just asking the DC5 chassis to understeer more than it already does.
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Old Aug 22, 2007 | 09:07 AM
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Default Re: (TheBlue5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheBlue5 &raquo;</TD></TR><TR><TD CLASS="quote">I run the em2 sway bar up front with the itr 22mm in the rear..Rides great</TD></TR></TABLE>

is the em1 and em2 sway bar the same?
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Old Aug 22, 2007 | 09:10 AM
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Default Re: (Todd00)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Todd00 &raquo;</TD></TR><TR><TD CLASS="quote">

Personally a 25mm+ front sway is just asking the DC5 chassis to understeer more than it already does.</TD></TR></TABLE>

is it noticeable though?
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Old Aug 22, 2007 | 09:51 AM
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Default Re: (dc5Aspec'd)

so it turns out i bought a front sway bar that is 16mm, 03-05.... didn't know honda changed the size of the sway bar from 01-02 to 03-05 im assuming this is to small for our chassis?
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Old Aug 22, 2007 | 09:54 AM
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Default Re: (dc5Aspec'd)

What exactly did you buy? An EM1 is a 99-00 Civic Si.

And yes, 01-02 Civic had a different (larger) front sway than an 04-05.

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Old Aug 22, 2007 | 10:19 AM
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Default Re: (Todd00)

yeah i apologize for that mix up i bought a em2 04 sway bar, not realizing it was 16mm
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Old Aug 22, 2007 | 03:32 PM
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Default Re: (dc5Aspec'd)

UPDATE: thanks for the responses, but I actually just bought a ep3 type R front sway bar that will work the way I want it to. thanks!

/thread
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Old Aug 22, 2007 | 08:07 PM
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Default Re: (dc5Aspec'd)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dc5Aspec’d &raquo;</TD></TR><TR><TD CLASS="quote">so you have the ITR header?


the thing that confuses me is why is the ITR sway bar 21mm and our stock one is 22mm? The ITR rides tighter, but it has a softer sway bar??</TD></TR></TABLE>

I run a Buddy club race header which not many sway bars work with. I wasn't even aware an em1 front sway bar would fit the rsx, but the em2 is one of the newer civic ex sway bars that is a 25mm..

The stock rear on the 02-04 is around 19mm and the stock rear on the 05-06 is 21mm so yes the itr is alil bigger in the rear
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Old Aug 23, 2007 | 04:28 AM
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Default Re: (articbluedc5)

yeah I'm not sure the EM1 fits, I may have miss read somewhere, but I thought it was em1, but now I know EM2 def fits thanks to you!
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Old Aug 24, 2007 | 01:28 PM
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So, you have to run a smaller sway bar up front for the itr header and buddy club header .. Correct?
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Old Aug 24, 2007 | 06:00 PM
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Default Re: (dc5Aspec'd)

I *seriously* doubt an Em1 front swaybar will fit the DC5 chassis. I think you got it mixed up with the Em2--which will indeed fit.
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Old Aug 24, 2007 | 08:31 PM
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Default Re: (FullEP3)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FullEP3 &raquo;</TD></TR><TR><TD CLASS="quote">bigger bar = stiffer ... hence less body roll

ITR rear sway or larger ... esp if you plan on running a larger front bar. Mugen sells a 32mm rear sway if feel a little crazy!</TD></TR></TABLE>

Mugen doesn't make a 32mm. I believe ASR makes it.
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Old Aug 24, 2007 | 09:43 PM
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Bigger in rear gives move over steer and smaller in front gives more over steer. I think that's the rule of thumb .. Could be wrong though.
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Old Aug 25, 2007 | 12:44 AM
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gradydc5 you are correct. normally that setup would be great for auto-x. and no you do not have to run a smaller bar, just a different bar that will clear the jdm headers (yes i'm talking about all of them)
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