deepbluejh

I've got an 07 with Koni Yellow adjustable height shocks and Skunk 2 springs (380 lb-in front, 243 lb-in rear). My overall ride height is about 1.5" lower than stock. This setup was generally fine on my old tire/wheel combo. On my new tire/wheel combo I have a LOT more grip, which is resulting in more body sway than I would like.

I'd like a mild swaybar upgrade, but want something that will compliment my suspension and staggered tire setup (225/255). Would I be ok with just upgrading the front swaybar? I would be fine with picking a set of used CR swaybars, or buying a new set of aftermarket bars if those are better.

What would be my best option here for aggressive street driving?

s2ka

You can buy a used 00/01 front sway bar super cheap, give that a try first. They're a little stiffer than a CR bar. Factory perfect fit with no issues.

deepbluejh

I found this information here:

S2000 Eibach Sway Bar rates:

Front: 32mm Adjustable (HOLLOW)
Pos.1 - 65 N/mm (368lbs/in)
Pos.2 - 73 N/mm (416lbs/in)
Weight - 4.8kg (10.6lbs.)

Rear: 29mm Adjustable (HOLLOW)
Pos.1 - 90 N/mm (515lbs/in)
Pos.2 - 106 N/mm (605lbs/in)
Weight - 4.9kg (10.8lbs.)

I was able to search the forums for OEM sway bar specs for comparison:

OEM S2000 Sway Bar Information:

AP1 100 series-
Front sway bar part number: 51300-S2A-003
28.2mm (HOLLOW) with a 5mm Sidewall
Rating at 61.6N/mm

Rear sway bar part number: 52300-S2A-013
27.2mm (HOLLOW) with a 5.3mm Sidewall
Rating at 73N/mm

AP1 110 Series-
Front sway bar part number:
51300-S2A-J01
27.2mm (HOLLOW) with a 5mm Sidewall
Rating at 53.6N/mm

Rear sway bar part number: 52300-S2A-013
27.2mm (HOLLOW) with a 5.3mm Sidewall
Rating at 73N/mm

AP2 120 Series-
Front sway bar part number: 51300-S2A-013
26.5mm (HOLLOW) with a 4.5mm Sidewall
Rating at 46.6N/mm

Rear sway bar part number: 52300-S2A-J01
27.2mm (HOLLOW) with a 4.5mm Sidewall
Rating at 67.6N/mm

130 Series-
Front sway bar part number: 51300-S2A-013
26.5mm (HOLLOW) with a 4.5mm Sidewall
Rating at 46.6N/mm

Rear Sway bar part number:
Do not have
25.2mm (HOLLOW) with a 4.5mm Sidewall
Rating at 51.6N/mm


Seems as if the early AP1 front sway bar is about 1/3 stiffer than the late model AP2 sway bar. I'm guessing this would be enough to be noticeable?

SlowTeg

The 00/01 FSB is virtually the same as the front CR bar (in terms of stiffness). Take a look at this thread:
https://www.s2ki.com/s2000/topic/818...nsion-springs/

s2ka

Yes, you should be able to feel the difference. I've tried 03, 00, and Saner front bars. I thought the Saner bar was too stiff for the street and it had some fitment issues that you won't have with the stock bars. The 00 front bar gets a little bouncy on rough surfaces but it will help dial out some steering if you're running wider front tires than stock.

For under $50 it's an easy mod to try.

Carbon Blue

For a staggered setup the eibachs are just fine. They fit great and are priced reasonably. Quality is top notch and they are adjustable. Ive got bilsteins on my car with similar spring rates (F345/R285)and the eibachs definitely made weight transition much more manageable. Handled just fine on the track as well with the front set on stiff and the rear on soft. It does not make any clunking noises when going over bumps or driveways when the chassis gets twisted.

Breaking Point

I have a MY00 ap1 and was in a similar boat.I went with the whiteline front bar and an ap2 130series rear bar(06-07) with energy suspension bushings.and the car responds perfect for how I drive.I've got an 00 front and rear bar if you'd like to stiffen your whole ride or just the front.it all depends on how you drive the car IMHO .im running a 245square setup currently.but during winter months im running ap2v1 with 215/245 and the car feels great in eother form

Optical TDI

Are these bars worthwhile?
http://www.ebay.com/itm/Honda-S2000-...SHJENA&vxp=mtr

eight

2 years