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Adjustable Rear Upper Control Arm (A-RUCA) for rear camber adjustment

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Old 04-11-2012, 04:38 PM
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Default Installed



This how they look installed...
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Old 04-11-2012, 04:42 PM
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Default Max camber

I was not at the install, so I could not take photos. I asked the mechanic to take some photos and this is all I got...


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Old 04-11-2012, 04:54 PM
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Awesome! So you have alignment specs yet?
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Old 04-11-2012, 05:32 PM
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2tCornot2tC,

Thank you for doing this. It's clear after looking at some of your other work that you pay attention to detail and have an excellent work ethic and I'm betting this isn't only because you've got a lot riding on (safety wise) these parts.

And thanks for the update!

~Terry
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Old 04-12-2012, 02:54 AM
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Default Max camber readings

Here is the alignment sheet for the max camber readings...looks like almost 3 degrees. This is the maximum adjustment these arms have in the negative direction.
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Old 04-12-2012, 03:03 AM
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Default The final setup...

I asked for 0.0 camber up front and 0.00 toe up front...these are both within manufacturer's specifications. I provided SPC bolts to do the fronts but this is only temporary until I get the TEINs. I also asked for -0.4 camber in the rear which is the minimum allowable. I also asked for a smaller toe (outside OEM range) of 0.02 toe in. Toyota specifies 0.04 as a minimum toe in the rear but I feel that that promotes too much under steer and too much scrub on the rear tires. The final sheet...


I posted my start point sheet here with the OEM RUCAs...
https://www.scionlife.com/forums/sho...&postcount=119

Last edited by 2tCornot2tC; 04-12-2012 at 03:10 AM. Reason: spelling
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Old 04-12-2012, 03:11 AM
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Originally Posted by biglilsteve
Awesome! So you have alignment specs yet?

Yup...just posted above.
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Old 04-12-2012, 03:23 AM
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Nice work 2tc. How does it feel?
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Old 04-12-2012, 04:59 AM
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Originally Posted by 2tCornot2tC
I was not at the install, so I could not take photos. I asked the mechanic to take some photos and this is all I got...




that moment when u start recognizing tires by their thread patterns
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Old 04-12-2012, 05:50 AM
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Originally Posted by Scion202
that moment when u start recognizing tires by their thread patterns
Yup...Michelin's finest...Pilot Super Sports...but what size?
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Old 04-12-2012, 07:25 AM
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Originally Posted by 2tCornot2tC
Yup...Michelin's finest...Pilot Super Sports...but what size?

knowing you, u prolly picked the closest to stock diameter which is 255/35/19 which is 0.2% larger in diameter

soooo for every 1000 miles you drive, the odometer records only ~998 miles
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Old 04-12-2012, 07:34 AM
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Originally Posted by Backinblacktc2
Nice work 2tc. How does it feel?
Thanks...


A significant improvement! But my answer is biased…and here is why. If you look at my start specs, you can see that my left rear had a -0.05 toe… that made it feel real loose on right handers. All off/on ramps are right handers in OH and IN. Any left handers are such long sweepers (they might as well be straights) that you just can’t tell on them. So, all of the ramps that you can gauge the handling on are all right handers. Since all of the weight transfers to the outside, the left side alignment determines your handling characteristics. It is now a very light handling, responsive car.
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Old 04-12-2012, 07:38 AM
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Originally Posted by Scion202
knowing you, u prolly picked the closest to stock diameter which is 255/35/19 which is 0.2% larger in diameter

soooo for every 1000 miles you drive, the odometer records only ~998 miles
Touché!


FYI...all the girls like big'ens also...
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Old 04-12-2012, 08:00 AM
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Originally Posted by 2tCornot2tC
Touché!


FYI...all the girls like big'ens also...

btw after u installed TRDs, how did u tighten shock and control arm bolts?

bolts B and C:

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do u have a full car length ramp? is tightening them with just rear on the ramp ok? or does it have to be at ride height with proper weight distribution?
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Old 04-12-2012, 08:16 AM
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Originally Posted by Scion202
btw after u installed TRDs, how did u tighten shock and control arm bolts?

bolts B and C:

do u have a full car length ramp? is tightening them with just rear on the ramp ok? or does it have to be at ride height with proper weight distribution?

I just snug them down…about 5-ft-lbs. Then I dropped the car and got a long ½” drive torque wrench in there. If I recall correctly, I had to torque them twice…there was not enough stroke to get a final torque. Since I don’t have ramps, I did not use any…there is such a small weight transfer from the change in elevation that I would not worry about it. It will sure make the job significantly easier.

Last edited by 2tCornot2tC; 04-16-2012 at 02:20 AM. Reason: removed image.
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Old 04-15-2012, 05:31 PM
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Got the wheels off to safety-wire the A-RUCAs...this is what they look like installed...here is the right rear...


This is the left rear...


Note that both of these arms are identical and take a look at how far each ball joint is exposed.
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Old 04-15-2012, 09:10 PM
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so u got no hand brake?
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Old 04-15-2012, 10:47 PM
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he had to ditch the hand brake when he fitted the f-sport bbk on the rear.

hmm...i'm not sure what a ball joint looks like though...what am i looking for?
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Old 04-15-2012, 11:46 PM
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What SS braided lines are those. I've been looking for some and clutch line as well for the Tc2. My Tc1 had them.
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Old 04-23-2012, 12:31 PM
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Anybody wanting to check out this car up close and personal will be able to at the Midwest Car Meet at Richmond Toyota/Scion on May 5th. Here is a link to the event...
http://www.facebook.com/#!/events/372337299456672/
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