Let's start the discussion on Z/28's aftermarket summer/winter wheel size

[Dr Chill]

Finally was able to mount the 20x10.5 et +10 Super Deep Concave Forgestar F14 wheels with MPSS 285/35-20 tires. The tires transform the daily driving performance and give a significant bump to comfort with minimal sacrifice to handling. I'm not saying they give the same track handling, but for taking highway off ramps and quick turns, they are fantastic. Plus there is the ability to rotate tires.

Now the down side. Despite the efforts of Forgestar and Tony (NineBall), nobody was truly able to determine fitment prior to my order. The front spokes didn't clear the inner aspect of the calipers, so I had to run a spacer in front and use extended thread lugnuts. With a 6mm spacer the wheels barely cleared so I went with an 8mm spacer. The poke up front is minimal but more than I was planning, although still far less than stock wheels/tires. Here are some pics:

[Dr Chill]

[SWRocket]

Originally Posted by Dr Chill

Looks awesome Dr Chill. Can you please post the specs for everything.

[Dr Chill]

I did in the post before the pics.

[SWRocket]

Originally Posted by Dr Chill

I did in the post before the pics.

Oops, my bad. I missed it.
so 20x10.5 et +10 Super Deep Concave with an 8mm spacer up front.
knowing this now, what offset would not require a spacer?

[Dr Chill]

+2 gives 2-3 mm clearance in front.

[SWRocket]

Thanks.
+10 in back and +2 in front.

[Dr Chill]

I've put about 2000 miles on this 20x10.5 square street setup and I highly recommend doing this if you do a lot of street driving. Going up to a 35 profile tire and a 2" larger tire diameter really helps with road irregularities and adds 1" of ground clearance.

Some people may not like Forgestar, but my experience with them (my 3rd set), has been great. Regardless of whatever wheel you choose, I highly recommend going a little narrower and with a higher profile for daily driving.

[JTRATX]

Originally Posted by Dr Chill

I've put about 2000 miles on this 20x10.5 square street setup and I highly recommend doing this if you do a lot of street driving. Going up to a 35 profile tire and a 2" larger tire diameter really helps with road irregularities and adds 1" of ground clearance.

Some people may not like Forgestar, but my experience with them (my 3rd set), has been great. Regardless of whatever wheel you choose, I highly recommend going a little narrower and with a higher profile for daily driving.

Those look fantastic. I would add wheel studs for quicker changes at the track assuming someone makes them.

[MRBZ28]

I ordered a second set of OME rims from the Dealer ($644.40 each) Front rims are painted yellow inside the Cap so you know they are the front rims.
I ordered Pirelli P-Zeros 305/30R19 (same Size as the Trofeo R) Tire Rack $403.00 each
looks great and rides nice
I didn't want to change the look, I want everyone to know it's a Z28

[Dr Chill]

Originally Posted by MRBZ28

I ordered a second set of OME rims from the Dealer ($644.40 each) Front rims are painted yellow inside the Cap so you know they are the front rims.
I ordered Pirelli P-Zeros 305/30R19 (same Size as the Trofeo R) Tire Rack $403.00 each
looks great and rides nice
I didn't want to change the look, I want everyone to know it's a Z28

Believe me, people who know what a Z/28 is will recognize it as such regardless of the rims. I was just recommending up sizing the diameter and going narrower (especially in front) for daily use.

[2SSRS@Gen5diy]

One last thing, the rear rimes will not fit on the front, they will hit the Struts before they go on all the way