In the process of buying a new set of rims and lowering my Z.

My planned setup will consist of the following
Kinetics Control Arms
GF210 springs
SPC Rear Chamber Kit
Bump stop mod
Rolled rear fenders

OffsetZ33 has the following setup. reference
Font: 19x9.5 +9 offset (+12 w/3mm spacer) 265/30/19
Rear: 19x10.5 +12 offset 275/30/19

My planned wheel setup.
Font: 20x9 +12 offset 265/30/20 (w/o spacer)
Rear: 20x10 +15 offset 275/30/20

I calculated that I would have +6mm more clearance than OffsetZ33 all around in regards to fender rubbing.

+3 from going a half size thinner (wheel width),
+3 added to all the offsets.

Can someone confirm my logic or point out some red flags? And will I have any issues maintaining a decide chamber?

I don't have VDC or TC. From what I've read, I don't have to be concerned about ABS, and I don't care about the speedo variance.

Thanks in advance for any feedback.

 

The front will be close with a 265 or may not work. Just drop to a 255/30 front or even 245/30 if needed. Both of those tire sizes will work great with your chosen rears.

 

20's.....on a Z?? really......ugh....y dont u just try it and if it doesnt fit go back to stock ride height then it will since the stock z ride height is like a frickin hummer....ohhh wait u tryin to look like a hummer?

 

Clueless arn't you. Those wheels are tires have the same outside diameter as stock wheel and tires, and the save as the common 245/40-18_275/40-18 , 245/35-19_275/35-19 combo. I do have to agree that 20's belong on a SUV, and not a sports car.

 

not clueless, all i saw was 20's and posted because i could care less if his offsets fit...a little searchin would have gotten results instead of starting yet another "will it fit" thread...

 

Excuse me, everything from my post came from other threads where I read and researched. I've spent a lot of time looking into this, all I asked if for was a simple confirmation. A couple of grand is a lot of money to spend on parts for a car. I just wanted some reassurance.

If you don't have anything constructive to say, please don't reply. You don't become an expert by searching and reading forums. This website has accumulated enough content to fill a 300 page encylopedia. 50% of which is filled with ******** comments like the one below. Its not always easy find the information you're looking for.

Classic example of: John Gabriel's - Greater Internet Dickwad Theory

If there was any chance that I became a premier member, which was very possible, you (eltness350) just blew it.

 

https://my350z.com/forum/wheels-and-...el-thread.html

You're welcome

 

^^^^^^^^^^^^^^hahaha troll threads get troll responses man....

 

Whats a chamber kit?

 

The size of the wheel doesn't matter, whatsoever.

The only thing that matters with fitment is overall circumference, wheel and tire width, offset and camber.

Your proposed setup should work, but may require a decent amount of negative camber to clear.

Put the specs into the offset calculator.

Front and rear will both have 3MM more internal clearance, will stick out 9mm less (a bit more than a 1/3"). You will have taller tires, but the overall circumference on your proposed setup is better for most conditions IMO.