Wanted to start off with this saying what suspension I am currently running.

• BC Racing Extreme Lows (lowered maybe 3-4 inches) don't know exact, this is a true setup
• Voodoo13 Toe Arms
• GodSpeed Camber Arms

This is all in the rear, where i am having these issues
My current wheel and tire size i have:

• 18x10.5
• 255/40/18

These are the yokohama advan sport a/s tires as well

Ok so the problem, I recently installed Godspeed camber arms hoping to get more camber on the z. After installation drove it around the block and there seems to be a clicking sound which isn't a huge worry for me because my current exhaust seems to do that time to time.
Going straight the wheel would be tilted to the right about I don't know 35-40 degrees? This was expected to me as I figured I just needed a alignment.
Going onto the main road though is where things got scary where the car would seem like it was on ice like jerking/gliding to the left or right quickly (seemed like the left happens more).
A day or two after this I took it to get it aligned. They evened out the camber on both sides to -6.5, and sadly I forgot what the toe was as the paper is gone but thinking about it now, pretty sure it seemed off.
I took the car off the alignment place and after going 35-40 mph the tires started screeching which was the biggest worry out of all of the problems I've had, and just took the car straight home. I figured the tires were rubbing on my coilovers since they are pretty thick tires so I ordered 20mm spacers from z1 motorsport. Also the wheel after the alignment went straight but after going 30mph+ the steering wheel would just tilt to the right to go straight...
After installing the spacers the issue is still occurring and the tires tread on the inside are degrading more and more. The right side is a lot worse than the left currently. After all of this I have a feeling this is my toe being off, but visually they seem to be fine. NOTE that the tires werent doing this till after the alignment. BEFORE the alignment the right side was -6.5 camber and the left was -4. something then they evened out.
I called the alignment place and they pretty much disowned me and the car for having that much camber, and stated it is normal to have these symptoms with that much camber...
Visually toe SEEMS to be evened out but the left side tire seems to be more off the ground compared to the right, even though the camber is even????
I put on my stock wheels and tires on and car drove fine till i got up to 40 mph and the tires started screeching only on the left side but they are both bald so i imagine theres not even enough tread on the right to even make a sound if it wanted it.

If i missed anything please let me know and I am happy to show any pictures to give a better visual. any advice would truly help.

 

Have you done a search here? There is heaps of info on tyres, alignments, etc.One thing I can say that your rear camber is - excessive to hell, a touch of toe in will help stability, ask the alignment place what they set it at. But do a search, my info is off the top of my head.

 

oh, so you are one of those camber gang special people. try doing an alignment within spec

 

350z camber spec is -2.1° to -1.1° . . . /facepalm

Yes, please post pictures, lmao

 

Recently, my z has been making a random loud clicking noise when weight is shifted to the rear under acceleration (fast or slow). Also when entering driveways sideways, the rear of the car flexes causing creaking. If this sounds similar to you, it may be time to change your endlinks.