Rep Power: 431

Rear upper strut bars
Carbing



Spoon Sports


Cusco
Boilermaker1's pictures.





J's racing
http://www.boomplustoys.net/jsracing_civic.shtml

From Dr. Design

Rear strut tower brace (What works better?)
Hello All,
We have noticed that there are a few different thoughts as how the rear strut tower brace works on the EP3. We have worked on the EP3 for the last 5 months and have disected this car to find out what the car needs. This is what we have noticed.

For starters some feel that the brace that goes underneath the carpet works pretty good. Well if you look at where it is mounted you will notice that there is a rather large bulkhead already there. So you are theoretically adding something that is already there. Since the point that you are trying to stop flexing is higher up on the strut towers you are not doing what was meant to do.....Stop the flexing.

Picture two sticks connected at the bottom. Squeeze the top of the sticks that are not mounted together(should look like a U). What happens?? The two ends move toward each other very easily. Now take those same sticks that are connected at the bottom and put another stick in the middle of them about half way up (should look like an H). Now, try to squeeze those together and what happens? You have a really hard time trying to get those two ends to meet this time? YES. You have placed the brace in the correct location. The pivot point has now been moved to a shorter piece.

That simple test should show you that when attempting to brace something you have to keep in mind what you are trying to accomplish. Your mounting points are very important and could be the difference from 1st and 2nd place on that racetrack. Some people feel that a Strut bar is a strut bar, there is no difference. They all do the same things. However in theory they all do the same thing. However in the world that we live in (Reality) they tend to do different things. There are alot of key factors that will allow flex in the design:

If a strut bar (or any bar) has tie rod ends = IT ALLOWS FLEX
If a brace uses adjustments = IT ALLOWS FLEX
If a brace uses bolts for mounting = IT ALLOWS FLEX
If a brace is mounted via welding = SIGNIFICANTLY LESS FLEX
If a brace uses triangulation = SIGNIFICANTLY LESS FLEX
Brace is used in the correct location = SIGNIFICANTLY LESS FLEX
If a brace uses inferior material = IT ALLOWS FLEX

Now, we understand that you guys do not drive racecars nor have complete competition roll cages welded into your cars. However we still bring this information to you based on the fact that you like to drive your cars to THEIR potential. Please let us know if there are any questions or comments.

Thank you,

Rear upper tie bars
D3



http://k7fx.com/d3/products/csk/rsx/index.htm
Jic rear tie bar.



Mugen



Neuspeed

Not sure if those bars will fit on 7thgen civics.
Ive talked to Greg(Hondawerx), He told me that, bars should fit.
Has not been confirmed yet though.


I will update if i find any other rear upper strut bars.
Boilermaker1 has Cusco.
Grey has spoon sports.

 
Rep Power: 412

Well again, if you are worried about Autox, those bars that don't attach to the strut housings are illegal. I have seen those D3 bars on other forums...and a lot of people are skeptical because he is making them himself. Granted that is how companies start, but at some points he was making claims that most people found unbelievable.

Do you have part numbers for those so I can add them to the FAQ?

 
Rep Power: 403

humm, i now want a rear upper upper bar... those bars look pretty sturdy... how much do those bars go for?

 
Rep Power: 0

are they illegal in all classes of auto-x or just in STS???

 
Rep Power: 431

Mugen
http://www.inlinefour.com/
$245.
Neuspeed
http://www.robearracing.com/pd_neuspeed_rear.cfm
$139.

 
Rep Power: 431

JIC
Tie bar
RAS-DC5-R
http://www.jic-magic.com/productsjic_strut.htm
Neuspeed
Tie bar
80.20.48P
http://neuspeed.com/products/product_details.asp?app=37|RS&type=12&ltype=ns_import&p_id=1032

Spoon
Rear upper strut bar.
74310-DC5-000
EP3/DC5
http://www.hondawerx.com/Spoon/bodyReinforcement.htm

Cusco
Rear upper strut bar
DC5
CUS-322541
http://www.robearracing.com/pd_cusco_rear.cfm

 
Rep Power: 423

They're not going to be legal in stock or STS for sure. Read the rules for what it says about something like
"Suspension tie bars or braces may be used provided they attach to original mouting points and do not cross the car diagonally". Thats the general form of the STS rule. Up towards SP and SM, it probably doesn't matter.

 
Rep Power: 0

That sucks I didn't see any upper tie bars for the EM2s, did I miss them?

 

Thanks for the info!

 
Rep Power: 403

em2=dc5

 
Rep Power: 0

Are you saying DC5 rear upper strut bars will fit the coupe and sedans?

 
Rep Power: 423

Yeah, most, if not all will fit. We've got the same bolts they do.

 
Rep Power: 0

Kew. It's time to find a nice shiny black one.

 
Rep Power: 295

The JIC rear strut bar that they carry will NOT FIT on our civics.

HOW do i know??? JIC test fitted on my friend's civic in front of us.

A new SS and maybe Ti exhaust will be out in a few month for our civic's. As of now, they will only make axle back, and might also make catback.

The axle back exhaust sounds nice and deep. Not too loud, like Apex N1.

 
Rep Power: 0

So is this inferior made? can I still do this for a sedan like you all say?

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEBWA%3AIT

I'd like to get this one if its not too generic-

 
Rep Power: 0

I talked to neuspeed and they have one coing out for the em2 in like amonth that mounts to the strut mount bolts. So it should be legal for autoX. It will be constructed like their front bars with no pivots, all one piece. Should be cool. The guy I talked to said that there would be a intro special on the price too so give them a call in like a month if you want one.

 
Rep Power: 295

the design looks pretty good since its a single piece

u can do what i will be doing, making my own strut bars for the front and back

i need to put my mech. engineering degree to something right

 
Rep Power: 338

Neuspeed will finally make 1 for the rear? that is something i will invest in.

 
Rep Power: 0

hey you all, the idea that a DC5 upper tower bar fits our EM2s is wrong. I got the Mugen tower bar and took it all apart and it doesn't fit, so, I may have to figure something out, suggestions?

 
Rep Power: 0

I called neuspeed again and they still say like a month till its out. I wish they would hurry up.

Is the one you got that doesnt fit a real mugen? If so I might have a buyer for it. PM me if it is or just respond here

 
Rep Power: 423

Did you try to bolt it to the tower? Or did you try to bolt it to the bolts behind the back seats? It doesn't bolt to the tower. Peel back the carpet around the pass through, you'll see a pair of bolts, vertically oriented about 3" apart... it bolts to those.

 
Rep Power: 0

Ha, ha! I made the bastard fit. after what I paid I was gonna get it in reguardless. Took some cutting but it was all good and drives a bit better with it, yay! Check it out-




If you got any questions just ask-

 
Rep Power: 0

that was the first place i thought it would fit, thats why I bought it. the spacing is off though, you have to make new holes. thanks though-

 
Rep Power: 403

nice rear upper upper bar

 
Rep Power: 403

nice rear upper upper bar

 
Rep Power: 0

It mounted finally around the same place it would mount to the DC5. I wanted to keep it centered for stabilty and its great.

 
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thats real slick, nice work

 
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Thanks, I was really happy I could MAKE it work. It really was worth it. Now if I can just get the RSX type S 19mm rear sway bar for her it would be a great final touch-just can't get my hands on one.