Sway Bar.

[Falconeer]

I am a total Noob to suspension mods:iono:. Can someone tell me how much and what difference would a sway bar make to my Yaris?
:biggrin:
Thanks!

[minnyar]

Looks like you are bone stock from a suspension setup. As was I two weeks ago, then I installed the UR 23mm sway bar. You absolutely can feel the difference. Turn in, much sharper, increased stability all around, and less body roll. Where before I had to brake and downshift to 2nd to make a 90 degree turn, I can leave the car in 3rd. Put it this way, I will need new tires soon, because corners are way to fun now!

[Falconeer]

Interesting... is this felt at all speeds?

[Loren]

Adding or enlarging a rear swaybar provides less body roll, less understeer, sharper steering response and greater stability at speed.

You won't feel it much when you're going straight except for greater resistance to cross-winds and that sort of thing. You will feel it in any turn at any speed.

[minnyar]

I think what you notice all around is the increased stearing response. At highway speeds, as Loren mentioned, the car seems stiffer and wallows less. Driving in a straight line at 30mph you will not notice the sway bar, but that's boring:)

[derickveliz2]

I am a total Noob to suspension mods:iono:. Can someone tell me how much and what difference would a sway bar make to my Yaris?
:biggrin:
Thanks!

It would make your face go from :redface: to :thumbup: on each turn!

Then you are going to start saving gas on turns. (no need to slow down)


.

[Falconeer]

I'm getting one. :D

[derickveliz2]

I'm getting one. :D

You are going to LOVE it! :bow: :thumbsup:


.

[arunto]

i used a UR 23mm on totally stock suspension and wheel setup this past winter and it was great. it lessened the body roll and was still very predictable at the upper limits.

[Mister Z]

So whats the difference in running a 19mm vs. a 23mm rear sway bar? I currently have tein S-techs on my yaris and was wondering which sway bar would be better. I've been told that the 23mm will give me more oversteer with my current set up. is that true?

[Loren]

Less understeer. Less body roll. Everything a swaybar does, a larger swaybar will do more.

The 23mm bar isn't enough to "cause" oversteer in a Yaris, though. It's still a FWD car.

[yarr_is]

swaybar is the best cheapest mod you can do on a car...

[ddongbap]

Less understeer. Less body roll. Everything a swaybar does, a larger swaybar will do more.

The 23mm bar isn't enough to "cause" oversteer in a Yaris, though. It's still a FWD car.

Balls out with a throttle lift off could change that though.

[Loren]

Balls out with a throttle lift off could change that though.

We'll assume the OP doesn't drive like a complete moron on the street. :wink:

(that kind of maneuver done just the wrong way could have a completely stock Yaris in an oversteer condition)

[MUSKOKA800]

I am a total Noob to suspension mods:iono:. Can someone tell me how much and what difference would a sway bar make to my Yaris?
:biggrin:
Thanks!

A HUGE improvement with no downside. Do it!

[ddongbap]

We'll assume the OP doesn't drive like a complete moron on the street. :wink:

(that kind of maneuver done just the wrong way could have a completely stock Yaris in an oversteer condition)

Mmm.. oversteer. First time offenders will probably end up tightening their sphincter. You know which one I mean.

[Falconeer]

has anyone tried this:

GTSPEC Rear Sway Link Brace Toyota Yaris 07+http://www.vividracing.com/catalog/gtspec-rear-sway-link-brace-toyota-yaris-07-p-47147.html

What do you think?

[Loren]

has anyone tried this:

GTSPEC Rear Sway Link Brace Toyota Yaris 07+http://www.vividracing.com/catalog/gtspec-rear-sway-link-brace-toyota-yaris-07-p-47147.html

What do you think?
Not a swaybar. Impossible for it to have the effect of a swaybar with those bushings on the center section.

[derickveliz2]

This is the one I have and like a lot!

Ultra Racing 19mm (http://shop.microimageonline.com/Ultra-Racing-19mm-rear-sway-bar-YARIS-UR-AR19-100.htm)

http://shop.microimageonline.com/images/Toyota%20Vios%202007.Yaris%20-%20Rear%20sway%20bar%2019m.jpg

http://shop.microimageonline.com/Ultra-Racing-19mm-rear-sway-bar-YARIS-UR-AR19-100.htm

D.

[cali yaris]

Thanks Derek!

has anyone tried this:

GTSPEC Rear Sway Link Brace Toyota Yaris 07+http://www.vividracing.com/catalog/g...7-p-47147.html

I sell those. They do help stiffen the rear end, but not the same thing as a sway bar and not the same effect, either.

[goliath1812]

do the hatchbacks and sedans have the same frame? one swaybar will work on both models?

[detroiter]

Yes, as far as I know the TRD and Ultra Racing swaybars are universal between the sedan and hatchback.

[Falconeer]

Not a swaybar. Impossible for it to have the effect of a swaybar with those bushings on the center section.

:biggrin:

i THOUGHT SO TOO! Cause according to my understanding it has to be a stiff bar without joints to transfer the weight effect on the inner tire. With the bushings that seems not right. Maybe its something else.:iono:

[cali yaris]

Front sway bars have two bushings, though.

Our rear axle is single beam, so it's not really a sway bar; it's a torsion bar.

[anexrx7]

Front sway bars have two bushings, though.

Our rear axle is single beam, so it's not really a sway bar; it's a torsion bar.

I've been trying to figure out this for a while. I have a rear swaybar on the RX-7 but it attaches to the body underneath. Does this do the same thing on the yaris or does it just attach from one side to the other on the stuts?

[yarrr]

I've been trying to figure out this for a while. I have a rear swaybar on the RX-7 but it attaches to the body underneath. Does this do the same thing on the yaris or does it just attach from one side to the other on the stuts?

It attaches to the shock and the shock mount(2 bolts each side) underneath the car.

[Loren]

I've been trying to figure out this for a while. I have a rear swaybar on the RX-7 but it attaches to the body underneath. Does this do the same thing on the yaris or does it just attach from one side to the other on the stuts?

As Cali hinted at above, the Yaris rear "swaybar" isn't a real swaybar. It behaves like a swaybar, but it is really just a torsion bar that reinforces the twist beam rear axle. Hence no frame mounting and no end links, etc.

[ctrj]

I am a total Noob to suspension mods:iono:. Can someone tell me how much and what difference would a sway bar make to my Yaris?
:biggrin:
Thanks!

Buy one. You'll notice a huge difference.

[anexrx7]

As Cali hinted at above, the Yaris rear "swaybar" isn't a real swaybar. It behaves like a swaybar, but it is really just a torsion bar that reinforces the twist beam rear axle. Hence no frame mounting and no end links, etc.

Wow, so it makes that much difference? That is crazy.

[RedRide]

Since one end of the rear "sway bar" that's connected to the suspension is directly connected to the other side of the suspension, when turning, the bar does offer resistance to reduce the outboard suspension from comopressing and therefore limits body roll.

I have a 23mm bar from Garm and it makes a significant improverment in handeling.

[Vang]

sorry to threadjack but will a 23mm swaybar be better for stability on the highway? its windy in norcal where im at and i have to fight the wander on the highway... thanks

[RedRide]

sorry to threadjack but will a 23mm swaybar be better for stability on the highway? its windy in norcal where im at and i have to fight the wander on the highway... thanks

Good question.

I commute with my Yaris on a interstate type highway.
With the 23mm sway bar, the car is more stable at highway speeds, quick lane changes are much more secure and safer. Wander is eliminated for the most part except in very strong cross winds but, I have a HB and I assume it is more prone to wander in strong winds due to its shape. Also, I have the crap OEM Goodyear tires for now.

I feel much more secure at highway speed with the sway bar.:smile:

[Vang]

Good question.

I commute with my Yaris on a interstate type highway.
With the 23mm sway bar, the car is more stable at highway speeds, quick lane changes are much more secure and safer. Wander is eliminated for the most part except in very strong cross winds but, I have a HB and I assume it is more prone to wander in strong winds due to its shape. Also, I have the crap OEM Goodyear tires for now.

I feel much more secure at highway speed with the sway bar.:smile:

alright thanks. im running on 16"s with nitto neogens 205/45/16s everything else stock... the 23mm is very tempting, but if i can get a 19mm bar and save some $$$ while still having the same stability on the highway then all the better

[auxmike]

I bought the red TRD bar, anybody know what the thickness is on those?
:iono:
PS; get a sway bar if you don't already have one. Mine's the only suspension mod I have and it's NOT a waste of $!:clap:

[Mister Z]

I bought the red TRD bar, anybody know what the thickness is on those?
:iono:
PS; get a sway bar if you don't already have one. Mine's the only suspension mod I have and it's NOT a waste of $!:clap:

I believe the TRD is 19 mm

[Falconeer]

so who has 19 and who's got 23? Which one is better?

[ddongbap]

I don't think theres a "better". They both respond differently to different types of alignment and tire setup.

I just want balls out, so I went 23mm.

But the difference is like getting Super Size with your Double Quarter Pounder with cheese meal.

[SLIK4]

I believe the TRD is 19 mm

i thought the trd was closer to 24mm :iono:

[derickveliz2]

so who has 19 and who's got 23? Which one is better?

I have 19mm and it has been awesome! and YES ...........TRD is 19mm

NOTE:
I've been adding weight (deadening my car and subwoofer box (http://www.yarisworld.com/forums/showthread.php?t=26150)) and my new wheels stick out a little bit more so I think I'm
going to upgrade to 23mm.

http://www.yarisworld.com/forums/showthread.php?t=26150

http://i634.photobucket.com/albums/uu61/derickveliz/DSC_9494.jpg

[MadMax]

so who has 19 and who's got 23? Which one is better?

I believe the 19mm is good for street use, and if you want to autocross then you should get the 23mm. However, the bigger the bar, the stiff your suspension would be, so the decision should be based on your driving skills and habits...

[RedRide]

Yes,the bar does stiffen the rear suspension and I assume the 23mm will stiffen it a bit more then the 19mm.
However I feel the ther rear is too soft as compared to the front in the stock configuration.

After adding the 23mm bar, to me, it now seems just about equal front to rear.

Personally, I have no problems using the 23mm for street/dd use.

[Loren]

The rear swaybar only "stiffens" the rear suspension when the car is cornering or when one rear wheel encounters a bump or hole that the other one doesn't. Typical straight line ride quality is unchanged. That kind of change in stiffness can only come from stiffer springs or shocks.

[Vang]

The rear swaybar only "stiffens" the rear suspension when the car is cornering or when one rear wheel encounters a bump or hole that the other one doesn't. Typical straight line ride quality is unchanged. That kind of change in stiffness can only come from stiffer springs or shocks.

so it wont really help in preventing highway wander during crosswinds?:confused:

[cali yaris]

Everyone I've talked to who installs a sway bar in the Yaris reports more stability in crosswinds. You'll find lots of posts to that effect all over the forums here.

[RedRide]

so it wont really help in preventing highway wander during crosswinds?:confused:

Actually it does to one degree or another.

It should be understood that even on the highway, traveling in staight line, the suspension is constantly flexing and the end result is one side will hinder the flexing other with the sway bay installed and therefore, stiffen the suspension feel. Rarely does the road want to compress both sides of suspension equally.

Of course, one can argue just how much stiffer it will feel and also the 19mm vs the 23mm.

[Loren]

The suspension "sees" a crosswind the same as it does a turn. The body rolls, once side compresses, the other side extends. A swaybar will limit that movement.

The calculation of bar "stiffness" (resistance to twisting force) is a function of its diameter to the 4th power. A 23mm bar is a lot stiffer relative to a 19mm bar than it might seem at first glance. While the 23mm bar is only about 21% larger diameter, it is MUCH more than 21% stiffer. Roughly: 23^4/19^4 = 280000/130000 = 2.15. The 23mm bar is over twice as stiff as the 19mm bar.

[SamH]

Simply: Feels like u are driving on rails... its awesome I got the 23mm and it rocks.

[sickpuppy1]

And that's where I'm at, I know I'm going to get one soon, but debating between the 19 and 23. I just a daily commuter, 55 year old fart with a young heart (except the cholesterol) and I want better handling, not sure if the 23 would make it too stiff. Probably should go with a 19 since it still is gonna be a vast improvement over stock. But don't wanna end thinking , dang,I shoulda got the 23 after all,.......It's not like I'm gonna go gymkhana racing or anything.

[sickpuppy1]

I'm still cruzin on stock tires and rims. Saving money for when I need new tires I'll be sporting new wheels too, cant wait!

[trebparadise]

Hi there,
which sway bar size is better for 205/60/r14 wheels/tire?

[cali yaris]

^ first, read the posts before this one. Then, buy the 23mm sway bar, or the 19mm for $30 less.

[127.0.0.1]

^ first, read the posts before this one. Then, buy the 23mm sway bar, or the 19mm for $30 less.


questions on the Ultra racing 23mm


1) what kind of paint ? is it powercoated, or fairly resistant to
corrosion ?

2) the welds, any warranty on the welds ?

are they in stock ?

---------
anyway, i am gonna get one of these 23mm jibbajobbahs and slap it on and post my results

right now, in crosswinds, my Yaris is like an itchy bear cub
I can get a TRD for 180 bucks from dealer. for less $$ I can go stiffer, so microimage will see some funds
from me soon.


EDIT: UltraRacing is ISO 9001
I am no longer concerned

[minnyar]

Mine was powder coated, before my dumb ass scraped it to hell installing it. Make sure you put a blanket/towel under your car when installing!

Just buy it, not to expensive, and it makes the car feel so much more solid. Why bother with the 19mm other than you saves you $30.

[deadcrow]

hey :) i search shorter or adjustable sway links but i don t know where i can get this....


greetings

[sickpuppy1]

Just ordered mine from Garm! looking forward to it!

[tomato]

So, what did you get, 19 or 23" ?

[cali yaris]

^ 19mm :wink:

[tomato]

^ Sounds like a good choice to me. Thanks :smile:

[sickpuppy1]

I decided that I am using my car as a daily driver and am interested in stability, with an increase in handling. The "Iwants" told me to go 23, but the practical side said Barry, you dont "need" it at all, but want it, so why not get all the benefits and save a few bucks. I will probably NEVER throw my car into a corner hard enough to need the 23.
LOL, but there is that part inside that say "owww, shiny......" If this is good, thats better.
But reality set in....I'm still gonna paint it some shade of red though so it goes with my Mediterranean mica sedan,lol

[derickveliz2]

You are not going to believe it! It's awesome!!!!

I got the 19mm too and it's way cool! I could never ever live with out it! I mean drive it (o:

.

[ezhacker1]

The "Iwants" told me to go 23, but the practical side said Barry, you dont "need" it at all, but want it, so why not get all the benefits and save a few bucks. I will probably NEVER throw my car into a corner hard enough to need the 23.
LOL, but there is that part inside that say "owww, shiny......" If this is good, thats better.


Better to have it and not need it, then to need it and not have it.

[ddongbap]

The sway bar doesn't help you drive. You drive as you drive. It just helps the car do what you want it to do.

[britishbikes]

The swaybar by itself makes a modest difference in handling, but will not affect the hobby horsing the car does at high speeds over undulating pavement. The TRD swaybar is 19 mm. I just put a caliper on it a few seconds ago.

Keep in mind the lowering springs are stiffer and the lower cg they give also add to the roll resistance of the car, the swaybar is about 1/3 of the total effect, it seemed to me. I added the rear springs and swaybar, drove it for a day, then did the shocks the next day and drove it, then the struts and front springs on the last day. Each modification added some roll resistance, the total effect of all parts it quite pronounced.

[127.0.0.1]

just installed 23mm UltraRacing on 2010 Yaris HB

--------------------------------------------------

This is such an improvement to everything about driving the car I do not know
where to start other than say GET ONE. It makes cornering awesome and highway
stability vastly improved. My Yaris went from a marshmallow to magical. It now behaves
like a much sportier car. wow I am pretty blown away by the change.

I also went looking for the added harshness hitting asymmetric bumps or
diagonal cracks or bumps. Couldn't find any problem of added harshness. I felt
a more firm stance, but it didn't make the ride harsh at all. I have everything
else stock...springs, shocks, tires all stock. Huge improvement.

[cali yaris]

:thumbsup:

glad you like it!

[sickpuppy1]

Same here with the 19mm, more stability when lane changes, got rid of the wandering on the highway too, bonus! I kinda wish I'd gone with the 23mm now, but very happy with the change.Nicer car to drive. Although I do find myself taking the corners in the subdivision faster than I would have...within reason of course,lol
For what I was trying to acheive, it worked perfectly. 40 minute install taking my time.

[detroiter]

My only warning to new owners of the bar is watch your speedo when taking corners. The car feels so much better going around corners that without care, you'll be wearing through tires a bit quicker ;)

[127.0.0.1]

The sway bar doesn't help you drive. You drive as you drive. It just helps the car do what you want it to do.

partly incorrect. it does help you drive.

it can help reduce fatigue on a long drive
(less demand and focus keeping the car planted on highway, easier cornering)


less fatigue = making you a better more attentive driver

sway bar owners...amirite ?

[ddongbap]

partly incorrect. it does help you drive.

it can help reduce fatigue on a long drive
(less demand and focus keeping the car planted on highway, easier cornering)


less fatigue = making you a better more attentive driver

sway bar owners...amirite ?

I don't how a sway bar helps fatigue. Sway bars don't really do much in a straight line.

[127.0.0.1]

I don't how a sway bar helps fatigue. Sway bars don't really do much in a straight line.


it does nothing in a straight line.

but please, unless you are in Iowa, there is rarely 1 continual mile of highway when you are going exactly straight. you are always lane changing or the road curves, or there are ruts, crosswinds, truck vortex...

the sway bar helps with these minor turns too.


on the highways in NE I already notice:

less steering effort when I am buffeted by 18 wheelers
drag vortex

less steering input for crosswinds

less steering effort over the rain 'humps', and grooves from
'sun baked pavement and rush hour traffic' undulating ruts
and lane changes


so, I stand by what I said: less overall fatigue. your mileage may vary

it takes a lot of mental energy to take long trips in a Yaris HB
because it is squirrelly by default. the fat sway bar in back cuts that
way down.

I already tested my new sway bar in a lot of conditions (it has been installed for 16 hours now) and have 350 miles on it already. 40 in town, 310 on interstate highway and off ramps.

[127.0.0.1]

after further testing....

yes there are certain bumps which are a bit harsher than without the swaybar

there are certain chatter bumps that when hit while cornering the rear end may want
to skip a little

it is now possible to lift the rear inside wheel in corners, but when this happens
A) I am going waaaay too fast to begin with and B) when that wheel lifts it increases traction up front so if you do not panic and just go with the flow, it enhances cornering


I would not recommend the swaybar for a driving novice or common idiot, as it does
allow you to 'get giddy' easily and then you may end up beyond your ability or beyond
the tire capability. but I love the damn thing.

[RedRide]

I agrere with your assessment.
As with any car, you have to respect its limitations and lean not to push it beyond it.

Personally, Ihe swaybay revealed just how bad the OEM "Goodear LS" tires are.
Monday, I wiil be getting "Yokohama Avid TRZ" tires installed and hopfully they will allow me to push it a bit further. :burnrubber:

BTW, I would not recomed that a "common idiot" be allowed to drive anything on a public road.:wink:

[Falconeer]

CTSCOTT... just got back from Saudi Arabia after a 27 hour one way road trip. Drove a Toyota Hiace high roof van. The winds in the deserts can get real nasty. The car kept changing lanes in gusty winds. Anyways, thats why I was not here for the last 10 days.

Sending you the money for the bar tonight! and my TNT account number for shipping. :)

[syntax]

@Falconeer, we are from Saudi arabia ( workin' here anyway) any chance your goin' back here?

[detroiter]

Syntax...Pilipino ka ba?

[syntax]

@detroiter oo naman Pilipinong Pilipino.

[detroiter]

I knew it :D

Kumusta ka na?

[syntax]

@ detroiter halata ba? wehehehehe, ok lang pre, kayo dyan kamusta na

[detroiter]

btw, I'm not pilipino but I'm sure you noticed that haha ;)

I practically live with Pilipinos so I know alot of things that go on. I know
alot work in Saudi Arabia so I had a pretty good hunch you were Pinoy :D

[syntax]

@detroiter hahahaha you got me there, i noticed it when you just type "kamusta ka na" which is very formal hahahaha

[detroiter]

I figured as much ;)

What part of the pi you from if you dont mind?