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

Dee · 03-04-2018, 11:15 AM

So I installed some ST coilovers. Pretty happy, besides some clunking in the rear.
I also installed adjustable SPC lower control arms (rear).

So to make this short, the front alignment was exactly what I wanted. 1.8 camber 0 toe.

However in the rear, the technician said he could get 1.3 camber on the left rear(exactly what I wanted), but on the right rear he could only get down to 2.1 camber. So I had to settle and get 2.1 camber on both sides of the rear

I am not very knowledgable of alignments, I have a little bit of suspension knowledge, but.. why was he able to only get 2.1 on one side while the other he could get 1.3? Is it possible he didn’t know how to adjust the control arm?

P.S. all of the numbers provided are negative camber

Tcoat · 03-04-2018, 11:30 AM

I really doubt he didn't know how to adjust the LCA.
The bigger question here is what is causing the "clunk"?
There should not be "clunking".

Lust · 03-04-2018, 11:32 AM

Double check to make sure everything is installed correctly. The clunk is worrisome.

Dee · 03-04-2018, 12:06 PM

Quote:

Originally Posted by Tcoat

I really doubt he didn't know how to adjust the LCA.
The bigger question here is what is causing the "clunk"?
There should not be "clunking".

Disconnected endlinks, was still happening. My friend in automotive school thinks it’s the bushings. I personally think it’s something with the top hats cause the sound appears to be coming from there. It’s died down a lot since install. Just really over big bumps.

Tcoat · 03-04-2018, 12:20 PM

Quote:

Originally Posted by Dee

Disconnected endlinks, was still happening. My friend in automotive school thinks it’s the bushings. I personally think it’s something with the top hats cause the sound appears to be coming from there. It’s died down a lot since install. Just really over big bumps.

Did you tell the tech you have this clunk?

cjd · 03-04-2018, 12:34 PM

Something seems off. I'm not sure I can get toe right at only -1.3° camber in the back. Plus that clunk.

Dee · 03-04-2018, 12:52 PM

Quote:

Originally Posted by cjd

Something seems off. I'm not sure I can get toe right at only -1.3° camber in the back. Plus that clunk.

I think he was able to get very little toe, like 2%, in the rear with -1.3* camber. So, why was he not able to get 1.3 on the right side?

I believe the clunk is just the top hat hitting the trunk. I’m not very concerned with it since it’s only over large bumps. I may get a tech to check it out.

cjd · 03-04-2018, 01:00 PM

Quote:

Originally Posted by Dee

I think he was able to get very little toe, like 2%, in the rear with -1.3* camber. So, why was he not able to get 1.3 on the right side?

I believe the clunk is just the top hat hitting the trunk. I’m not very concerned with it since it’s only over large bumps. I may get a tech to check it out.

You should be able to get zero toe and -3°... Assuming the car is lower on the coils. Stock should fall around -2° or more, lowered.

Also, clunks lead to broken parts. Just because you only hear it over big bumps, the constant chatter is there. Fasteners aren't rated for that and eventually break.

NoHaveMSG · 03-04-2018, 01:58 PM

Look at the camber adjuster on the LCA's and see where they are at. If you are not sure what you are looking at post a pic of each side. I can't imagine what would be off that you can't get the adjustment you need.

Dee · 03-04-2018, 05:22 PM

Quote:

Originally Posted by NoHaveMSG

Look at the camber adjuster on the LCA's and see where they are at. If you are not sure what you are looking at post a pic of each side. I can't imagine what would be off that you can't get the adjustment you need.

This is the camber adjustment right? If so left and right arms are shown. I can provide better pictures if those aren’t clear enough

NoHaveMSG · 03-04-2018, 05:52 PM

Those are good pics.

Yeah both those are only about half way through their adjustment range so I don't know why he can't get the same on both sides unless he couldn't get the one adjuster to spin. So he just used that as an excuse.

Dee · 03-04-2018, 08:11 PM

Quote:

Originally Posted by NoHaveMSG

Those are good pics.

Yeah both those are only about half way through their adjustment range so I don't know why he can't get the same on both sides unless he couldn't get the one adjuster to spin. So he just used that as an excuse.

Ah, thank you. When I go back, I will show him the picture. How exactly do you adjust these, in case he asks?

Brink · 03-04-2018, 08:52 PM

Quote:

Originally Posted by Dee

Ah, thank you. When I go back, I will show him the picture. How exactly do you adjust these, in case he asks?

If an alignment tech asked me how to adjust any alignment characteristics on my car I'd find another shop.

Ultramaroon · 03-04-2018, 09:54 PM

I'd just find a different shop and tell them what the first guy said.

Make sure you ask for printouts of both before, and after.

03-04-2018, 11:15 AM	#1
Dee Member Join Date: Dec 2016 Drives: 2014 Asphalt FRS Location: Tennessee Posts: 53 Thanks: 8 Thanked 7 Times in 7 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Alignment question So I installed some ST coilovers. Pretty happy, besides some clunking in the rear. I also installed adjustable SPC lower control arms (rear). So to make this short, the front alignment was exactly what I wanted. 1.8 camber 0 toe. However in the rear, the technician said he could get 1.3 camber on the left rear(exactly what I wanted), but on the right rear he could only get down to 2.1 camber. So I had to settle and get 2.1 camber on both sides of the rear I am not very knowledgable of alignments, I have a little bit of suspension knowledge, but.. why was he able to only get 2.1 on one side while the other he could get 1.3? Is it possible he didn’t know how to adjust the control arm? P.S. all of the numbers provided are negative camber

03-04-2018, 11:30 AM	#2
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,845 Thanks: 61,656 Thanked 108,283 Times in 46,456 Posts Mentioned: 2495 Post(s) Tagged: 50 Thread(s)	I really doubt he didn't know how to adjust the LCA. The bigger question here is what is causing the "clunk"? There should not be "clunking". __________________ Racecar spelled backwards is Racecar, because Racecar.

03-04-2018, 11:32 AM	#3
Lust Senior Member Join Date: Jun 2015 Drives: 2017 Subaru BRZ Location: California Bay Area Posts: 214 Thanks: 121 Thanked 105 Times in 55 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Double check to make sure everything is installed correctly. The clunk is worrisome. __________________ CSG x Varis BRZ Build Thread \| Instagram

03-04-2018, 09:54 PM	#14
Ultramaroon 義理チョコ Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 31,871 Thanks: 52,137 Thanked 36,521 Times in 18,922 Posts Mentioned: 1107 Post(s) Tagged: 9 Thread(s)	I'd just find a different shop and tell them what the first guy said. Make sure you ask for printouts of both before, and after. __________________ service manuals

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