got an 06 ss/sc and just installed my eibach sportlines (lets not talk about the springs, unless you are wanting an opinion) and i am debating on installing a rear sway bar.

the eibach front bar is the same diameter as stock, so i dont really see the point in "upgrading" that, but what are the pros and cons of installing the rear bar?

the reason i am doing all eibach is bcuz of the discounts through work


thanks, dylan

 

Do it! One of my favorite mods.

 

why would you have to think about that? it adds to handling

 

Important info. The funny thing with cars is that the front stiffness adjusts the rear handling (that's what she said) and the rear stiffness effects the front. So if you only get the rear sway bar you could understeer more. My opinion, eibach is a good company and they know what they're doin so even though the sway bar is the same thickness it could be stiffer, balancing out the car. I'd study a little more and read more reviews before deciding to annex the front. My car understeered bad until I bought my springs and the back was still squishy but my car is more balanced.

 

ottp street rear sway bar it will make the car more neutral.

 

OTTP hardcore rear bar. The car will understeer less. It does not become neutral or oversteer. It is still FWD, after all.

 

From one Dylan to another, sway bar is worth it.

 

The hardcore bar makes over steer, thats why I said the street bar. It makes the car "more" neutral, not completely but it feels pretty balanced.

 

The hardcore bar does not make the car oversteer. It does not oversteer when you're on throttle. Trust me, if you rode in a FWD car setup too loose, you will poop your pants. This car, with the stock or Pedder springs, and the hardcore bar, does not oversteer.

 

o.0 um...in corning in autox'ing last summer it made mine want to over steer if you dont know what/how to drive. It will cause a little over steer.

edit: go read any of the sway bar suspension threads. Its stated, the hardcore bar does cause a little over steer and the street bar is a more neutral bar.

 

Just to through something out there.. How about the Progress rear sway bar? Has anyone used it?
Im not trying to thread jack...just curious on another option??

 

wow.. soo many replies lol.. sounds like i will be doing it.. the main thing is that i dont wanna stiffen it up too much, bcuz i dont want the back end to slide around


thanks for the feedback guys, i know the rear def has too much play right now and needs to be stiffend up

 

ottp street bar = perfect

 

thanks, but no way im paying $220, when i can get the eibach for probably half or less

 

you get what you pay for, but for street use you should be ok.

 

OTTP hardcore + Pedders = perfect wet setup.

 

Yes, your Cobalt will oversteer. On this site are some photos of the Denver-area SCCA autocrossers back in Sep of 2009. I run in DSP. The first four photos on this site are of my Cobalt being driven by my co-driver -- while he spins the car (he lost it in photo #2, catches the oversteer, and loses it again completely in photos #3 and #4).

http://www.photostockplus.com/home.p...5&album=328626

I'm photo #5 and later down the page there are two photos of me on a different part of the course.

YES! You can oversteer a Cobalt.

Scroll through the photos, my Cobalt's in there several more times - look closely at the 'typical' Denver-area autocrossers -- very fast cars -- a very competitive region! Note every car you see with a TIRE RACK on the top of the front window has either competed at an SCCA National Tour event or at the SCCA US Nationals (most had just been at the Nationals earlier that month).

Scott

BTW, the car's on 285/30 x 18 Hoosiers -- about 4.5 degrees of negative camber -- before I installed the GMS1 kit.

 

Well my coby with only lowering springs (TenzoR) oversteers every now and then. It depends on your weight distribution. Body roll is a big part of understeer/oversteer as well so remember that. I'd get a same brand anti-roll kit for both front and back since you're not too suspension savvy to setup a neutral mix. Let your experience be your guide after-wards. But I do know if you tighten the rear, the front likes to understeer.

 

Any car is going to oversteer on lift throttle or under trail braking. You have to realize that the car is sliding and if it's too much you need to compensate somehow. I've ridden with a lot of students that have no idea that the car is rotating more than the steering input that they're feeding in.

I'll stand by my assertion that Pedders and the hardcore bar are very predictable, and does not have any tendency to oversteer unexpectedly.

Scott, you're the exception here. You had a pretty aggressive GC setup running up to 600lbs in the back iirc. Plus the quicker transitions from turn to turn on an autox course sometimes won't allow you to correct with he throttle like you would on track.

 

Being perdictable has nothng to do with the parts making the car over steer. Just because you say you know you cam control the oversteer doesn't mean it isn't there.

 

Not trying to start anything here..., just wanted to make the point that any car, even a FWD cobalt, can oversteer. Understeer isn't a permanent condition.

Scott

 

I have the progress rear sway bar.

 

Could you tell any difference? Good or Bad??

 

Sorry, wrong. A stiffer rear bar only affects the rear, and front the front. It controls the roll of the car; less roll equals more stick. Or at least in concep, you need the tires dampers and springs from then on.

I added a progress rear bar on top of my progress springs and Kosei K1 racing time attack wheels with General exclaim UHP tires and I love the setup. At the limit it handles like a RWD car with the back end breaking loose first with no understeer EVER. A little disconcerting at first on the track and def not for on the street until you have learned how to handle a rear happy FWD car. Countersteer and don't let off the gas. In a long sweeper at full limit if I let off the gas or make any sudden momentum change like hit my brakes violently the back end will step out a tad. Its a lot of fun and the car finally felt dialed in once I installed it.

 

Not entirely... Read up on the Scandanavian Flick. Normally that is about the only way to make a FWD oversteer while on throttle. While off throttle and decelerating(wether engine braking or trail braking) the natural tendancy of the car to oversteer does dial in but also contributes to being slower in the turns.

Now to the question at hand. For more neautral handling I highly reccomend the OTTP Hardcore bar. I have it with my SS/TC springs and stock LS struts/shocks and it is very predictable. Around a small traffic circle I have no issue with throwing my ass out a little on entree and throttling it out with no fear of overcorrecting or oversteering into the inside curb. The setup is almost perfect, I just need stiffer rears, a SS/SC swaybar, and a lower COG and I will be happy.