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OK, i've done a little homework on these but need a few details from the experts.

From what I see the Shine/OBar rear sways are just steel that bolts onto the axle. The Neuspeed/Autotech have some fancier fasteners involved, and seem to go all the way out to attach to the suspension.

NOW, a suspension NOOB (like me), would look at the two different types of bars offered here and say "Gee, those Neuspeed/Autotech bars LOOK like they're doing a lot more than the simple piece of steel offered by Shine/OBar."

But then that noob would decide he'd better ask someone who really knows. Can anyone suggest whether these bars perform differently based on their attachment styles?

(ps, I've already read HowStuffWorks, so a link over there wouldn't be all that useful.)

Thanks!
 

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One advantage with Neuspeed is that it is adjustible. This is nice for the winter where you can make it less agressive. With the Shine bar you might simply remove it for the Winter.
 

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Now, I've heard the Shine creaks, but I'd like to know the answer, because I'd love to save some money myself :)
 

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The Shine bar doesn't creak on my car (I've had it for 3 years and over 40 auto-x races). It also won't bind like the others. If it squeaks the bolts are loose. They tell you in the directions to retorque the bolts after a few miles. I'm sure they'll give you your money back if you don't like it.

Here's a link to my ride http://www.b5one.com/oneB5/0906.shtml
 

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The Shine bar doesn't creak on my car (I've had it for 3 years and over 40 auto-x races). It also won't bind like the others. If it squeaks the bolts are loose. They tell you in the directions to retorque the bolts after a few miles. I'm sure they'll give you your money back if you don't like it.

Here's a link to my ride http://www.b5one.com/oneB5/0906.shtml
Good to know.
Its quite a bit cheaper than the neuspeed. Don't wanna pay a bunch more for a logo :)
Not to go off-topic but what is the daily ride like on the SRS suspention. I'm looking at that.
 

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What's this about binding? Which of the swaybars binds, and what conditions cause them to bind?

Sticking or locking up in the bushings under cornering. This can cause a sudden undesired change in the effect of the sway bar. It's very important to keep the moving parts of the other bars lubed. This is one (maybe the only) good thing about the VW rear axle. We don't have to put up with this. We can just buy the SRS bar. I'm lazy and I don't want to be thinking about the last time I lubed my rear sway bar as I'm cornering at 60+mph wondering what's gonna happen next.
 

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I have heard of at least one person who had the o-bar (same as
shine in principle), and didn't like they way it felt at high speeds.
I think it was too stiff and din't allow enough flexibility at the higher
speeds thus making it feel unstable. He switched to the Neuspeed bar
and has since loved the feel. I think the neuspeed type bars are better
because the endlinks allow for some flexibility. The solid o-bar type are
possibly better at lower speeds & more aggresive driving (tracking?).
I don't know from personal experience, just from what I've read here.
There's also a company called Whiteline, from Australia with a very good
reputation for their nuespeed-like bars.
 

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i chose neuspeed b/c of its adjustability and autotech requires drilling. i hear autotech is lighter whereas neuspeed is much more dense/heavier, but that adds to the positive effect.

so i guess it comes down to more weight to axle (but more noticeable effect), adjustable bar vs less weight to wheel, but requires drilling.
 

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So, no functional difference in what these different styles of bars actually do?
Structural/mechanical engineering explanation...

The FWD passat's rear suspension is really just a big anti-sway bar... as one wheel is pushed upwards, its suspension arm twists the main beam, which in turn twists the arm on the other wheel, which then pushes upwards on the other wheel.

The torsional (twisting) stiffness of the main beam determines how much load is transferred from one wheel to the other. Basically, stiffer beams require more force in order to twist the same number of degrees.

To expand on this, the main beam's "open" V shape is much softer in torsion than a "closed" O shape would be. Basically, the two "legs" of the V can move separately from each other along the axis of the main beam, while with an O shape, each "slice" of the O has to remain in one plane as it twists.

The "traditional" anti-sway bars, such as neuspeed, work in parallel with the existing suspension.

IMO, the O-bar is designed to reinforce the existing suspension's main beam, by making it work more like an O section, instead of a V section.

Without having done any analysis, I would *guess* that the O-bar provides more initial stiffness, while the traditional anti-sway bars are more "linear" in their behavior (and therefore less noticeable at mild/moderate cornering speeds).
 

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wow, awesome explanation, pete!!

i've thought for along time about simply making a bar like the shine/o-bar. i just might go forward with it.

does anyone see a problem with making your own bar?
 

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I had a P&P rear sway on my 99 and then I sold it when I parted the car. I always did like that bar and when the new owner decided to part his Passat I bought it back. I love that thing.
 

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wow, awesome explanation, pete!!

i've thought for along time about simply making a bar like the shine/o-bar. i just might go forward with it.

does anyone see a problem with making your own bar?
You need to know how much it has to twist to get your desired reaction (aka spring rate of your bar).
 

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I was just about to post and ask where to get the cheapest neuspeed rear bar new, cause I couldn't find one used.

then I read this and I was about to buy a shine bar.

then I read further and read the references to the high speed instability, that's bad news for me as I occasinoally will do higherish speed blasts, neighboorhood of a buck twenty or so and twitchiness would not be my friend whatsoever.

Now I'd love the ability to have a car dig strong on the autocross speed of things..... but I notice understeer much more on my car at lower speeds below, say 50 or 40 mph. At higher speeds the car is a bit more neutral with the setup I have on it now. I don't want "snappy" oversteer at all....

seems like the Neuspeed may be the most road friendly design, personally not a fan of the sliding ends of the autotech due to maintenance. .... ... the neuspeed seems like a pretty simple choice....

any response to the higherish speed handling with the SRS/Obar?
 

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I was just about to post and ask where to get the cheapest neuspeed rear bar new, cause I couldn't find one used.

then I read this and I was about to buy a shine bar.

then I read further and read the references to the high speed instability, that's bad news for me as I occasinoally will do higherish speed blasts, neighboorhood of a buck twenty or so and twitchiness would not be my friend whatsoever.

Now I'd love the ability to have a car dig strong on the autocross speed of things..... but I notice understeer much more on my car at lower speeds below, say 50 or 40 mph. At higher speeds the car is a bit more neutral with the setup I have on it now. I don't want "snappy" oversteer at all....

seems like the Neuspeed may be the most road friendly design, personally not a fan of the sliding ends of the autotech due to maintenance. .... ... the neuspeed seems like a pretty simple choice....

any response to the higherish speed handling with the SRS/Obar?


Yeah, don't believe it. Some one speaking about some one else's experience. I've been using SRS bars for many, many years on many, many different VW's with no issues at highway speeds.

Why would you want more moving parts :confused: and spend more money :confused:
 

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Mr. Scirocco,

that's a good question. Anyway, I called shine today and they said the bar is $250 for a passat, the same as a neuspeed bar. Where's the cost savings?
 

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Mr. Scirocco,

that's a good question. Anyway, I called shine today and they said the bar is $250 for a passat, the same as a neuspeed bar. Where's the cost savings?
Where do you get the neuspeed at $250?
MSRP for rear bar is $390
 
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