Camber difference question - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

FSFRS · 11-30-2022, 04:37 PM

Hey guys

I am lowered on RCE Yellows and got an alignment without LCAs.

They fixed my toe and camber was not adjustable, so they sent me on my way.

My rear left camber is -1.8 and my rear right camber is -2.7

Do you guys think with those numbers it's necessary to correct? a 33% difference seems like a lot. This is just a daily driven street car.

SCFD · 11-30-2022, 07:58 PM

Stock rear alignment is wonky like that. No real way to correct it without using aftermarket parts to allow camber adjustment. Ideally, I like to see my left/right settings within 0.2* of each other at the most.

There's an alignment shop that I go to regularly that is used to doing "motorsports alignments" and they were willing to use a pry bar to get the numbers closer together before tightening things down.

ZDan · 11-30-2022, 09:36 PM

Track use, I'd wanna bump the rear left camber up (more negative). Street-only? I wouldn't worry about it...

Racecomp Engineering · 12-01-2022, 11:09 AM

That difference would bother me. Just unlucky, my car was spot on from the factory.

The rear subframe can be shifted (an opportunity to install some of the rear insert bushings and/or those STI long subframe bolts) but that can be tricky without a skilled technician.

The SPC rear LCAs would do the trick for cheap.

- andrew

gpvecchi · 12-01-2022, 04:17 PM

Will the Spoon collar will fix this issue?

DocWalt · 12-01-2022, 04:40 PM

Quote:

Originally Posted by gpvecchi

Will the Spoon collar will fix this issue?

No, all of the arms are attached to the subframe.

gpvecchi · 12-02-2022, 01:55 AM

Sure, but the shocks are attached to the chassis.

DocWalt · 12-02-2022, 09:54 AM

Quote:

Originally Posted by gpvecchi

Sure, but the shocks are attached to the chassis.

They don't define the rear camber.

Spuds · 12-05-2022, 11:29 PM

Quote:

Originally Posted by Racecomp Engineering

That difference would bother me. Just unlucky, my car was spot on from the factory.

The rear subframe can be shifted (an opportunity to install some of the rear insert bushings and/or those STI long subframe bolts) but that can be tricky without a skilled technician.

The SPC rear LCAs would do the trick for cheap.

- andrew

I've seen those sti bolts somewhere. Why would anyone need longer subframe bolts? Just to add braces?

norcalpb · 12-06-2022, 01:35 PM

Quote:

Originally Posted by Spuds

I've seen those sti bolts somewhere. Why would anyone need longer subframe bolts? Just to add braces?

They are meant to be used with the STi front lower subframe stoppers. But obviously there have been tons of people who have done other subframe inserts without extended bolts so I doubt it's a super necessary thing.

All I know is an STi engineer looked at the Subaru engineered bolt and said "not good enough" and that was enough to take my money lol.

Highlighted blue part is the stopper, and you can see the bolts are different front to rear. This is a JDM 2015 TS diagram I believe.

Grady · 12-14-2022, 10:10 PM

The Whiteline bolts would get even probably around -2.3. Adjustable LCA are the fix.

11-30-2022, 04:37 PM	#1
FSFRS Member Join Date: Mar 2022 Drives: '13 FR-S Firestorm Location: Houston Posts: 40 Thanks: 6 Thanked 88 Times in 29 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Camber difference question Hey guys I am lowered on RCE Yellows and got an alignment without LCAs. They fixed my toe and camber was not adjustable, so they sent me on my way. My rear left camber is -1.8 and my rear right camber is -2.7 Do you guys think with those numbers it's necessary to correct? a 33% difference seems like a lot. This is just a daily driven street car.

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11-30-2022, 07:58 PM	#2
SCFD Senior Member Join Date: Sep 2020 Drives: FR-S Location: USA Posts: 171 Thanks: 313 Thanked 70 Times in 50 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Stock rear alignment is wonky like that. No real way to correct it without using aftermarket parts to allow camber adjustment. Ideally, I like to see my left/right settings within 0.2* of each other at the most. There's an alignment shop that I go to regularly that is used to doing "motorsports alignments" and they were willing to use a pry bar to get the numbers closer together before tightening things down.

11-30-2022, 09:36 PM	#3
ZDan Senior Member Join Date: May 2011 Drives: '23 BRZ Location: Providence, RI Posts: 4,584 Thanks: 1,377 Thanked 3,891 Times in 2,032 Posts Mentioned: 85 Post(s) Tagged: 0 Thread(s)	Track use, I'd wanna bump the rear left camber up (more negative). Street-only? I wouldn't worry about it...

12-01-2022, 11:09 AM	#4
Racecomp Engineering Join Date: Nov 2011 Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI Location: Severn, MD Posts: 5,406 Thanks: 3,419 Thanked 7,241 Times in 2,962 Posts Mentioned: 303 Post(s) Tagged: 9 Thread(s)	That difference would bother me. Just unlucky, my car was spot on from the factory. The rear subframe can be shifted (an opportunity to install some of the rear insert bushings and/or those STI long subframe bolts) but that can be tricky without a skilled technician. The SPC rear LCAs would do the trick for cheap. - andrew

12-01-2022, 04:17 PM	#5
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	Will the Spoon collar will fix this issue?

12-02-2022, 01:55 AM	#7
gpvecchi Senior Member Join Date: Mar 2018 Drives: Toyota 86 GT Limited PP (Model G) Location: Italy Posts: 1,018 Thanks: 406 Thanked 335 Times in 187 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	Sure, but the shocks are attached to the chassis.

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