4g61t.org

I once had a standard Eclipse GS (FWD N/T) that had some suspension modification. One of the modifications that I picked up from someone was a Rear sway bar and I didn't think that it would do much... I was wrong! it gave the understeering pig of a DSM more balance. Made it more fun to drive.

Long story short, car was in an accident and I kept the rear sway bar. I looked at my CSM and thought Hmmm.... I bet that would fit... and it does!

I can feel the difference already. It doesn't seem like it would work because where it mounts to. Everything is welded together but it is the same on the FWD DSMs where everything is welded together. It must just make the rear bar more ridged and gives the car some more over steer characteristics of a rear sway bar.

Just wanted to share this with everyone and I will post a picture of it tonight of where it mounts to. Here is the install procedure on a dsm which is the same for the CSM except you have to drill the non existant holes (DSMs have them predrilled)

http://www.dsmtuners.com/forums/article ... stall.html

That's great info, thanks! I had always heard about people who adapted the 1g FWD sway bar onto our cars, but didn't realize how easy it was. I might have to give this a shot on my car, sooner than later.

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91 GSX - 511fwhp and 352 lb/ft 25psi 110 octane, 7.68 @ 95.9mph 1/8th 21psi 91 octane, 11.93 @ 112.9mph, 117.7mph best trap speed, 20psi 91 octane
98 Volvo S70 T5 - DD

http://www.facebook.com/captaintonus

For reference, this is the whiteline bar installed on Jmauld's car from a long while back:

I'm going to say there are one and the same dimensionally and part wise.

Yeah, that is what it looks like installed. And they look exactly alike.

TO THE AUTO CROSS!!!

trying to make the scummit handle...

Maybe there's something I'm missing, but is this bar not just bolting directly to the rear beam? Is it just keeping the beam from flexing? Does the rear beam even flex that much? I'm trying to figure out how this would result in less body roll. Or is it simply that the extra weight of the bar improves the Front/Rear weight balance?

I'd love to go this route if it resulted in a definite improvement in handling, I just can't wrap my head around the physics of how it's actually working!

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1989 Mirage Turbo w/4G63T
1991 Mazda MX-5 (UK spec)
2018 Hyundai I30N

the rear axle bar for the most part stays parallel to the ground, the car body does not as it rolls with inertia through a turn. the sway bar will help resist that rolling force as the body twists it up on one side and down on the other. also, this will not increase the roughness of the ride dramatically as the entire axle moving up and down over say, a speedbump, will not engage the sway bar.

a stiffer rear sway bar will transfer more cornering load to the rear tires, as the bar will resist body roll more then the front bar, taking load off of the front tires and balancing the ff car more through a turn.

all i know of suspension tuning i learned from gran turismo people here can confirm my above post though.


ahhhh i see your point, its bolting to the control arm, wtf? that seems less effective.

It would still work. As the body leans away from the inside of a turn the inside control arm will lift to follow the chassis and the outside control arm will drop. The sway bar being bolted to the control arms will fight that lifting/dropping of the control arms. So it might not be as effective as the sway bar being bolted to the chassis but it will still have an anti-roll affect on the chassis.

this is totally happenin to my car. junkyard swaybar, make a kit for the remaining pieces, hello handling.

dont use a rear sway bar on a csm with stiff springs if you plan on daily driving it... unles you like snap oversteer while letting off the gas getting onto freeway onramps

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If speed kills, then i shoulda been dead awhile ago. There is no such thing as "Too Much Power". There is no excuse for a lost race. Do you view the rev limiter as a fun limiter?or as a shift point? And we all know, more boost=more fun.

Sounds like fun!

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91 GSX - 511fwhp and 352 lb/ft 25psi 110 octane, 7.68 @ 95.9mph 1/8th 21psi 91 octane, 11.93 @ 112.9mph, 117.7mph best trap speed, 20psi 91 octane
98 Volvo S70 T5 - DD

http://www.facebook.com/captaintonus

hmm, with elantra front bar that might not be the case, but still sounds like fun.

Too stiff of springs on your CSM or not enough testicular fortitude. Snap oversteer happens even to stock cars. The sudden shift of weight due to your right foot giving in to the fears of your cerebrum cause the rear two tires to give up on trusting you.

If you install the sway bar on the rear axle with either front sway bar option installed, you will induce the same oversteer characteristic that was mentioned. It all depends on how you want your car set up. I won't be adding one to mine, but hopefully I am achieving the driving and cornering characteristics I am aiming for.
I have the turbo front sway bar, the YoshiFab front strut bar, and front BG Colt drops, and rear HR FWD Talon drops. Haven't had the me to install the matching rear BG springs.

somehow i doubt with a front bar added to balance the load a bit more that oversteer would be so predominant, if you add rear roll resistance and it adds oversteer why wouldnt adding front roll resistance reduce it?