Roll center adjuster - Toyota Yaris Forums

d1nzfe · 05-09-2010, 09:30 AM

Anyone on these? They are very pricey though.
Supposed to lower the roll center after u lowered your car. Reduce roll during cornering.

Bluevitz-rs · 05-09-2010, 09:39 AM

Perhaps you could put a link up to what they are and what they do. I've never heard of them.

d1nzfe · 05-09-2010, 09:45 AM

Bluevitz-rs · 05-09-2010, 09:57 AM

At stock ride hight the arm is pointing slightly downward, not straight out. So unless you're more than 2" lowered, you shouldn't need something like that.

d1nzfe · 05-09-2010, 10:13 AM

definitely more than 2". Any trackies comments?

djct_watt · 05-09-2010, 10:31 AM

Based on the picture, wouldn't that piece just raise right back up to stock height?

lilredrocket · 05-09-2010, 01:31 PM

They are not needed the Yaris has a feature likes this built in. Here is a whole thread on it: http://www.yarisworld.com/forums/showthread.php?t=23911 also here too http://www.microimageonline.com/foru...Suspension-Mod!!!!

d1nzfe · 05-10-2010, 06:24 AM

Quote:

Originally Posted by lilredrocket

They are not needed the Yaris has a feature likes this built in. Here is a whole thread on it: http://www.yarisworld.com/forums/showthread.php?t=23911 also here too http://www.microimageonline.com/foru...Suspension-Mod!!!!

I got it, BUT I am now talking about the front.

djct_watt · 05-10-2010, 06:29 AM

Yes, and the built in feature moves the appropriate pivot point. This mod only adds more length to the strut, which defeats the (cosmetic) point of lowering a car. This would be great if all you wanted was to stiffen the suspension, without lowering the ride height. . . which is actually something I am interested in (ground clearance is an issue here in Thailand), but I'd probably rather go with coilovers instead.

markitect · 05-10-2010, 06:20 PM

I think the main purpose of these is probably to correct alignment. I think some adjustable camber bolts, and you will be fine

Bluevitz-rs · 05-10-2010, 08:08 PM

The purpose is to adjust the angle of the lower FRONT control arm.

At stock ride hight, the arm is angled down slightly. When the suspension compresses in a corner the arm pushes out the bottom of the tire creating negative camber. If the arm is already straight out, it can only create positive camber as the suspension compresses.

The diagrams in the 3rd post illustrates what happens pretty well. Remember that the strut will only allow up and down movement, but the control arm moves in a circular sweep.

djct_watt · 05-11-2010, 02:15 AM

^ and to properly adjust the geometry, you would need to move the pivot point on the control arm, not adjust the length of the strut (which is what the blue piece does).

On a geometry standpoint, the picture is all wrong. . . but it's probably because a 3rd grader drew it on MS-Paint. There's really no point in me arguing about it. It's impossible to say what the heck it even does without a proper picture.

d1nzfe · 05-11-2010, 06:27 AM

now, we need somebody who actually know the picture here.

Bluevitz-rs · 05-11-2010, 08:36 AM

Quote:

Originally Posted by djct_watt

^ and to properly adjust the geometry, you would need to move the pivot point on the control arm, not adjust the length of the strut (which is what the blue piece does).

On a geometry standpoint, the picture is all wrong. . . but it's probably because a 3rd grader drew it on MS-Paint. There's really no point in me arguing about it. It's impossible to say what the heck it even does without a proper picture.

Roll center adjuster for honda

djct_watt · 05-11-2010, 08:46 AM

No need to be rude. Thanks for the pic. Is that the same exact piece?

kngrsll · 05-11-2010, 09:01 AM

they even make them for the vitz! http://www.nengun.com/moonface/front...r-adjuster-pro

Bluevitz-rs · 05-11-2010, 09:03 AM

Same idea. If you could get the stock ball joint out and replace it with a longer one, you regain the slight downward angle of the control arm. You technically should have one for the tie rod too to prevent bump-steer.

d1nzfe · 05-12-2010, 06:25 AM

its is available for vitz thats y i asked..

05-09-2010, 09:30 AM	#1
d1nzfe Drives: 1NZ-FE Join Date: Oct 2008 Location: asia Posts: 55	Roll center adjuster Anyone on these? They are very pricey though. Supposed to lower the roll center after u lowered your car. Reduce roll during cornering.

05-09-2010, 01:31 PM	#7
lilredrocket Slowy getting there View User's Garage Drives: 08 Liftback Join Date: Nov 2008 Location: DFW, Texas Posts: 1,464	They are not needed the Yaris has a feature likes this built in. Here is a whole thread on it: http://www.yarisworld.com/forums/showthread.php?t=23911 also here too http://www.microimageonline.com/foru...Suspension-Mod!!!! __________________

05-11-2010, 09:01 AM	#16
kngrsll Apexing Egg!! Drives: 07 Toyota Yaris white hatch Join Date: Oct 2006 Location: Spartanburg, SC Posts: 872	they even make them for the vitz! http://www.nengun.com/moonface/front...r-adjuster-pro __________________ HighTach Motorsports 2007 Toyota Yaris-ARGH!! Mods: Tokico HTS, 6.6 kg F, 6.1 kg R custom springs, 23 mm RSB, 2-way TRD LSD, 15x7 +25 Team Dynamic wheels, 195/55/15 Dunlop Star Specs, Cobra Suzuka S

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05-09-2010, 09:39 AM	#2
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	Perhaps you could put a link up to what they are and what they do. I've never heard of them.

05-09-2010, 09:45 AM	#3
d1nzfe Drives: 1NZ-FE Join Date: Oct 2008 Location: asia Posts: 55

05-09-2010, 09:57 AM	#4
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	At stock ride hight the arm is pointing slightly downward, not straight out. So unless you're more than 2" lowered, you shouldn't need something like that.

05-09-2010, 10:13 AM	#5
d1nzfe Drives: 1NZ-FE Join Date: Oct 2008 Location: asia Posts: 55	definitely more than 2". Any trackies comments?

05-09-2010, 10:31 AM	#6
djct_watt Drives: 2010 NCP91 5spd Join Date: Nov 2009 Location: Thailand Posts: 449	Based on the picture, wouldn't that piece just raise right back up to stock height?

05-10-2010, 06:29 AM	#9
djct_watt Drives: 2010 NCP91 5spd Join Date: Nov 2009 Location: Thailand Posts: 449	Yes, and the built in feature moves the appropriate pivot point. This mod only adds more length to the strut, which defeats the (cosmetic) point of lowering a car. This would be great if all you wanted was to stiffen the suspension, without lowering the ride height. . . which is actually something I am interested in (ground clearance is an issue here in Thailand), but I'd probably rather go with coilovers instead.

05-10-2010, 06:20 PM	#10
markitect Drives: Yaris Join Date: Oct 2008 Location: Michigan Posts: 199	I think the main purpose of these is probably to correct alignment. I think some adjustable camber bolts, and you will be fine

05-10-2010, 08:08 PM	#11
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	The purpose is to adjust the angle of the lower FRONT control arm. At stock ride hight, the arm is angled down slightly. When the suspension compresses in a corner the arm pushes out the bottom of the tire creating negative camber. If the arm is already straight out, it can only create positive camber as the suspension compresses. The diagrams in the 3rd post illustrates what happens pretty well. Remember that the strut will only allow up and down movement, but the control arm moves in a circular sweep.

05-11-2010, 02:15 AM	#12
djct_watt Drives: 2010 NCP91 5spd Join Date: Nov 2009 Location: Thailand Posts: 449	^ and to properly adjust the geometry, you would need to move the pivot point on the control arm, not adjust the length of the strut (which is what the blue piece does). On a geometry standpoint, the picture is all wrong. . . but it's probably because a 3rd grader drew it on MS-Paint. There's really no point in me arguing about it. It's impossible to say what the heck it even does without a proper picture.

05-11-2010, 06:27 AM	#13
d1nzfe Drives: 1NZ-FE Join Date: Oct 2008 Location: asia Posts: 55	now, we need somebody who actually know the picture here.

05-11-2010, 08:46 AM	#15
djct_watt Drives: 2010 NCP91 5spd Join Date: Nov 2009 Location: Thailand Posts: 449	No need to be rude. Thanks for the pic. Is that the same exact piece?

05-11-2010, 09:03 AM	#17
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	Same idea. If you could get the stock ball joint out and replace it with a longer one, you regain the slight downward angle of the control arm. You technically should have one for the tie rod too to prevent bump-steer.

05-12-2010, 06:25 AM	#18
d1nzfe Drives: 1NZ-FE Join Date: Oct 2008 Location: asia Posts: 55	its is available for vitz thats y i asked..