Anyone With Bigger Sway Bars

[UR2SLOW1]

Is there anyone out there who's installed the bigger sway bar the coresport sells ? I'm thinking of buying one but wasn't sure how much difference it makes in body roll. Thanks for the feedback.

[Jay Kincannon]

Use "search" at the top right of each page. You are new to 8th Civic Forum. Spend some time and learn how to use this site to your advantage and enjoy.

[Jardiniboy]

Are you talking about the progress rear sway bar? Actually a lot of people have it and it's a popular suspension mod.

[tite681]

Does the car require an allignment after installing a new sway bar?

[pd0019]

^ no.

you just need to make sure that the rear suspension is under load when installing it. its a great mod....i just put one on my car and love it.

[eugenekim.net]

yeah it's totally awwesome (read the thread(:

Important info for all those with aftermarket sways!

[tite681]

Originally Posted by pd0019

^ no.

you just need to make sure that the rear suspension is under load when installing it.

I am guessing this means lowering the tires to the ground before tightening the bolts?

[Izzy]

You can just jack up the suspension arms too, it's the same concept.

[tite681]

I read this DIY and it didn't mention anything about putting load.

Progress Rear Sway on Si

Is one way better than the other?

[LucasBlack]

Originally Posted by tite681

I read this DIY and it didn't mention anything about putting load.

Progress Rear Sway on Si

Is one way better than the other?

...that's because not everyone modding their car knows exactly what they're doing.


Have the suspension "loaded" before tightening the sway bar.

[tite681]

Cool! Thanks.

[Jardiniboy]

Just put your car on jack stands. It's not that hard. It gives you more clearance to work with also.

[tite681]

Originally Posted by Jardiniboy

Just put your car on jack stands. It's not that hard. It gives you more clearance to work with also.

This sounds easy and totally workable. But a few members on this post talk about "loading" the suspension. How do I go about doing that while my car is lifted?

Yes, I am a newb. I totally respect all the feedback I'm receiving. But like all the rest or you, I just want it done right the first time.

[Highrev1]

Any benefits with adjustable endlinks?

[Dracomeister]

Hey Guys, I'm just an old geezer Engineer that plays at being a racer but by the very nature of an antisway bar, preloading the suspension before tightening the bolts has no effect. The bar is captured but rotational. I put the Progress bar, Skunk2 rear camber plates, Ingles Engineering front camber bolts, HFP suspension, HFP brake kit, and a set of Falken Azenis on my 07 Si and it handles Road Atlanta like it is glued to the road. Now if I can just get a bit more HP!

[Highrev1]

Originally Posted by Dracomeister

Hey Guys, I'm just an old geezer Engineer that plays at being a racer but by the very nature of an antisway bar, preloading the suspension before tightening the bolts has no effect.

Well I unno.....

"Preload of the swaybar implies that once installed the bar is loaded in torsion and applies load to the suspension system. The static result of this is that the body or chassis has been preloaded in roll and may be at a visible angle if the preload is large enough. This preload also effects the weight distribution at the tyre contact patch, both left and right and diagonal.

Dynamically the sway bar will be able to resist roll in one direction much greater than it would if it where installed without any preload. However cornering in the opposite direction the bar will allow and promote chassis roll until it has unwound or “used up” its preload, at which point the swaybar is unloaded at some cornering level. Beyond this the swaybar will provide the usual roll resistance or roll stiffness (less than a non-preloaded swaybar).

This effect is very asymmetric, although actual amount or effect it has could be minimal. The possible reasons for such a design could be to match a chassis which has its CG offset to one side, compensating any effects of that. It can also be used to modify the handling of cars that run on specific tracks, like oval racing, which benefit from asymmetric setups."

[Dracomeister]

I agree with Highrev1 that you can, and in some cases (like roundy-round racing) should preload the bar in torsion. That having been said, you would preload with differing length connectors on the ends (AKA Crankin' in some wedge), the sway bar is still rotational in the central brackets. For us poor sods confined to road racing and autocross tracks (and the street) being able to turn in both directions is sometimes a plus.

[Highrev1]

Originally Posted by Dracomeister

I agree with Highrev1 that you can, and in some cases (like roundy-round racing) should preload the bar in torsion. That having been said, you would preload with differing length connectors on the ends (AKA Crankin' in some wedge), the sway bar is still rotational in the central brackets. For us poor sods confined to road racing and autocross tracks (and the street) being able to turn in both directions is sometimes a plus.

LOL...isn't it always a plus to be able to turn right AND LEFT :)

Right but ALOT of these guys are using the adjustable endlinks for added clearance for the Rear exhaust pipe...THere by unnecesarily pre-loading the bar to be more uhhh turnign right happy? I can't think right now but you get the point they are doing it unintentionally and acutally hurting performance Its a shame, we need more engineers like you on here

[brdhouse]

I'm pretty sure the instructions that came with my progress rear sway bar, as crappy and unhelpful as they were, didn't say to do it. Maybe I'll try it when I install those reinforcement brackets Highrev1 is making.