[tegrady]

I would love to see a complete parts list (with quantities) for this mod if anyone could be so kind. Here's what I have so far.

1 X 52317-SVB-A01 Bracket, R. RR. Stabilizer
1 X 52318-SVB-A01 Bracket, L. RR. Stabilizer
2 X 90212-SA5-003 NUT, SELF-LOCK (10MM)
2 X 90002-S10-000 Nut, Flange (10mm)
2 X 52306-SVB-A01 Bush, Stabilizer
2 X 52308-SVB-A01 Holder, Stabilizer Bush
4 X 93401-10020-08 Bolt-Washer (10x20)

 

[lowerlevel]

I would love to see a complete parts list (with quantities) for this mod if anyone could be so kind. Here's what I have so far.

1 X 52317-SVB-A01 Bracket, R. RR. Stabilizer
1 X 52318-SVB-A01 Bracket, L. RR. Stabilizer
2 X 90212-SA5-003 NUT, SELF-LOCK (10MM)
2 X 90002-S10-000 Nut, Flange (10mm)
2 X 52306-SVB-A01 Bush, Stabilizer
2 X 52308-SVB-A01 Holder, Stabilizer Bush
4 X 93401-10020-08 Bolt-Washer (10x20)

i would also like to see a parts list or even the part# for the si sway bar.. i cant see it anywhere on hondaparts....

 

[DumbasSi]

Part #10 on the diagram
52300-SVB-A01 SPRING, RR. STABILIZER

 

[Gone]

Increases spring rate side to side but not front to back. Increasing the size of the rear bar also increases the load the rear tires effectively see during cornering and promotes more oversteer, or rather less understeer.

Confused yet?

Am I the only person who disagrees with this statement? A sway-bar has nothing to do with spring rates (in terms of directly effecting them). All a sway-bar does is it transfers weight from side to side during cornering, keeping the inside tire on the ground. Any weight transferred to the outside wheel in a rolling (turning) vehicle is transferred back to the inside wheel by way of the sway-bar. It is the size (and makeup - hollow or solid; wall thickness) of this bar that ultimately decides how much of the "rolled" weight is actually transferred back to the inside wheel. Thats is why it is possible to have a bar that is "too stiff", it actually ties both sides of the suspension together so stiffly that the suspension pieces actually lose independence of each other (essentially making your front/rear suspension one solid piece). Then, when you hit a bump, the other side of the suspension actually "hits" the bump also, since the bump is transferred side-to-side, as well as the weight.

A well designed rear sway-bar will actually reduce front weight-transfer to the outside front wheel by transferring weight from the rear outside tire to the inside front tire. This is because weight is not only transferred from side-to-side, but diagonally (to the opposite corner of the car) in a corner. Adversely, it will increase weight transfer to the outside tire in the rear. This is OK, since the rear tires aren't doing much work (compared to the fronts in a FWD). So all this weight gets thrown onto the rear outside tire and off the inside rear tire, causing a loss of rear grip, or, oversteer. At the same time, the reduced front load increases available grip, giving a better steering feel and increasing front responsiveness, i.e. less understeer.

Also, the term "anti-roll" bar or "roll-bar", is actually incorrect, as this bar does nothing for roll. Spring rates control roll by resisting suspension compression on a given side of the vehicle.

OK, wow, that turned out to be longer than I intended... sorry guys but I hope this helps clarify some things.

 

[tegrady]

Thanks DumbasSi, not sure how I missed that one on the first list. So with that added, does anyone see any missing items on the list?

1 X 52317-SVB-A01 Bracket, R. RR. Stabilizer
1 X 52318-SVB-A01 Bracket, L. RR. Stabilizer
2 X 90212-SA5-003 NUT, SELF-LOCK (10MM)
2 X 90002-S10-000 Nut, Flange (10mm)
2 X 52306-SVB-A01 Bush, Stabilizer
2 X 52308-SVB-A01 Holder, Stabilizer Bush
4 X 93401-10020-08 Bolt-Washer (10x20)
1 X52300-SVB-A01 SPRING, RR. STABILIZER

 

[Kurt]

That's what you have to buy to have the Si rear sway-bar fit?

What kind of civic do you have?

 

[honda93]

Am I the only person who disagrees with this statement?

No, I disagree to a point... A sway bar DOES effectively act as additional spring rate for that end then the car is turning. The bar is spring steel and it resists the roll of the body by trying to bend in the opposite direction in which it is being twisted...

 

[honda93]

Btw.... when you mention 'stock autocross class', 'spring rates', and your limitations to 'strut/shock' work, does that mean you can change out the factory strut housings but have to keep the factory springs, or stick with a spring that equals factory spring rates? (I'm assuming here that 'spring rate' refers to the coil spring characteristics.... but I don't know for sure)

In the SCCA rulebook, shock and struts are free in Stock, as are front sway bars, but that's really it for suspension work unless you want to move to other classes. But yes, spring perches on the shock or strut body, springs (both physical size and rate), and the shock/strut mounting location must be the same OEM parts or specs...

It is because of these rules limitations coupled with what I know of the specs for the LX Coupe and the Si Coupe that prompted me to buy the LX instead of the Si!

 

[flsedan07]

Adding the Si front swaybar to a sedan, or base coupe will actually reduce performance for one simple reason... the fact that the Si has a limited slip differential and the other Civic models do not.

As Mario mentioned, you will shift the already nose heavy balance of the sedan to an even greater tendancy to understeer. This is because you will be causing a large shift in the roll stiffness distribution front to rear.

There are two basic rule is chassis tuning regarding roll stiffness distribution.
1. Your roll stiffness distribution should roughly equal your sprung weight distribution.
2. You should minimize roll stiffness on your drive axle, especially with an open differential.


So... by adding the Ø28mm sway to the front of a DX, LX, or EX, you will highlight the already mild tendancy to understeer while at the same time experience much more wheel spin on your inside wheel.

Additionally, you may cause premature failure of your front lower suspension arms. The lower arms on the Si have a much beefier sway bar link bracket, as well as other reinforcements.

-SWRT

Dammit!!

This statement totally contradics what others have been sayin. Now I am not sure what to do. My sedan rolls, floats etc and I was almost sure the sway bars would of hel[ped by what . read up till now.