Okay guys, I'll throw mine in the mix:

IForged Evolutions (Polished): 20x9(F) + 20x10(R) w/ BFG KDW2 255/35(R) + 285/30(R)



Although this might be the last time you'll see it this way since I'm planning on getting Mercury Silver Volk GT-S's in 19's with fatty lips. I'm a sucker for Ladiez that have nice lips

 

Sevas Wheels would be your best Choice 20 x 8.5 and 20 x 10




19 x 8.5 19 x 9.5

 

I didn't have to lower the car at all, and I don't have any problems with the tire pressure gauge. I just drove it to Sedona and back yesterday (2 hours each way) and never had a light come on. I don't think that putting larger wheels will necessarily trigger any difference with the indicator light. The tire pressure guage on my 2005 coupe with stock wheels went off all the time, but on my 2006 roadster with 20's have never gone off once. I'm not sure what causes the difference.

 

+1

theres only a few (and far between) chromes that IMO actually look great on a Z.

And while im on here, is it just me, or does it appear that twenties on a z actually add height to the car in comparison to stock 17s or 18s.
i thought by keeping the tire profile really low that it should pretty much be the same if you go up one inch or two.

 

I think 20's look great on a Z, but chrome isn't my personal taste.

These Mayas are the shizznizz. This is roncfpz's car.

 

Yes those mayas are probably some of the best looking 20's out there IMO

 

20's, and especially chrome add some splash, but the bling is somewhat tacky and detracts from performance as well. Easy choice to avoid them.

 

That and the 20" rim is going to be wider as well which means bigger, heavier tires.

 

your suv will look great with those dubs on em

 

Heres some kinda small pics of my 20" Iforged Senekas high polish...Much better than getting heavy chrome...Its not as bling bling as chrome but you get the shine without the added weight...20" rims alone are heavy. Adding chrome to it will imasculate your Z. Unless you have FI. Smaller lighter rims will always have the advantage over bigger rims. But damn it 20" look sooo good on a Z...BTW I dropped it with Eibach Prokits...No problem with rubbing the fenders but dont hit a large pothole...yikes..

 

For some reason the 20's in that second pic look way too big for the car. I think 20's look the best w/ a body kit. Just helps pull the larger wheels and body together as one instead of the wheels overpowering the body.
Just my .02

 

if your going for the look go with 20s and if your for speed go for 18 r 19 because 20s will rub off some speed

 

Thats some great words of wisdom....

 

Ive run against guys with 18-19" rims and Ive stayed dead even with them so the effect isnt as noticeable as you think. You will feel it a bit on take off though but its minimal. The Z has more than enough power to push 20's..I wouldnt choose 20" as track rims however but on the street you will be hard pressed to run away from a Z with 20" like mine if you are bone stock...Ask any of the guys I run with...

deeez the reason it looks so big is because of the dark shadows hiding the lower body of the Z...As you can see in the top pic its nowhere as big looking as the bottom pic cause you can see all the cars dimensions.

 

Snakebitten is 100% correct. I have 20" chrome wheels on my 06 touring roadster and had stock rims on my 05 coupe base. The difference in speed is minimal. Once you add an intake or performance mods you can't even tell the difference in the wheel weight. I have cams, intake, and exhaust and it moves very quickly. My stereo is significantly heavy (a couple hundred pounds) and it still makes a minimal impact. I'm sure the track times would see a difference, but you can't FEEL the difference nor would you notice it on the street.

 

There is no difference at all UNLESS you decide to autocross or drift your car. But just normal street driving(racing) wont harm you. Ive had 20;s but now I have 19;s and I cant really tell a difference. I guess its all mental. Just get what makes you happy.

 

bottom line ...20s on a sports car other then looks are never a good thing for performance. I mean its a no brainer.

 

20" makavelli's and i still smoke almost every car i see!!

 

I love these types of comments...If you are running 10/10ths on the street you are fool[not talking to you RBlover ]...Thats the only time you are going to see the performance hit from 20's...On a track where every tenth counts I would never chose 20's on a Z....But MOST sports cars are run on the street...And those that have 20's will tell you they have no problem keeping up with stock tired Z's...

As a matter of fact I'd go so far as to bet that with my 255f/275r 20's on I would beat a stock Z with the 225f/245r 18" tires on a roadcourse. Simple reason, more contact patch so Ill corner harder where the stockers will slide..More grip..Go ahead and call me crazy. Now I wouldnt make that bet with 18's with comparably wide rubber as mine ...Different variables come into play imho..On the street none of this matters so go with whatever size tire/wheel combo you like best. Most of the guys that tell you not to go 20's because of performance hit have never seen a track and are just parroting what they've heard big rims do to cars[not refering to anyone in particular]...If you listen to them you would think 20's turn the Z into a land barge that cant accelerate or corner...Take it from those of us enthusiasts that drive on the street...Better yet run someone with 20's, assuming both cars are similar save for the rims, and report back your findings.

 

20s are fine if your car never sees the track - or is mainly a show car or a "look at me" car.
If you're serious about going fast, stick with 18s.... MAYBE 19s... and thats a big maybe.
I'd never run bigger than 18s. And for ****'s sake, I'd never run CHROME. yuck.