Cal Club Autocross Forums

Posted: **Wed Dec 23, 2009 7:33 am**

Theoretical question ... for a Stock class car ... does one HAVE to use oem wheel sizes or no larger then oem sizes? If one's daily driver wheels/tires are narrower then oem and one ends up using them as ones rain tire, is that OK? Sort of like a lower class car can always run in a higher class?

In this case using oem 1" narrower C5 sized wheels on a Z-06.

Posted: **Wed Dec 23, 2009 7:42 am**

Has to be the same width and diameter.

Posted: **Wed Dec 23, 2009 8:00 am**

The daily driver wheels that Karen REALLY wants are only available in C5 sizes, not Z06.

Surprisingly not very many Z06 size wheels out there that we like. CCW doesn't make a one piece wheel in Z06 sizes, and Bogart racing wheels doesn't make an 18" wheel. Henry can use 17" wheels all around in ASP. Looking for "mesh" style wheels in polished aluminum, not chromed.

Z06 = 17 X 9.5 & 18 X 10.5

Posted: **Wed Dec 23, 2009 8:21 am**

13.4 WHEELS
Any type wheel may be used provided it complies with the following:
it is the same width and diameter as standard, and as installed
(including wheel spacers if applicable) it does not have an offset
more than +/- 0.25 inch from a standard wheel for the car. The
resultant change in track dimensions is allowed.
Wheel spacers are permitted, provided the resultant combination
complies with the offset requirements of this section. Wheel studs,
lug nuts, and/or bolt length may be changed.

Posted: **Wed Dec 23, 2009 9:05 am**

Mako Koiwai wrote:The daily driver wheels that Karen REALLY wants are only available in C5 sizes, not Z06.

Surprisingly not very many Z06 size wheels out there that we like. CCW doesn't make a one piece wheel in Z06 sizes, and Bogart racing wheels doesn't make an 18" wheel. Henry can use 17" wheels all around in ASP. Looking for "mesh" style wheels in polished aluminum, not chromed.

Z06 = 17 X 9.5 & 18 X 10.5

I know you are not such a newb you were serious about using smaller wheels in stock.

The very popular CCW classic can be had in Z06 sizes. And there are a few guys running around on one-piece Circle Racing Wheels (now known as Spin Werks) in Z06 sizes.
http://www.racerpartswholesale.com/cate ... ls_18_Inch" onclick="window.open(this.href);return false;

CCW classic

Posted: **Wed Dec 23, 2009 10:08 am**

Of course ... it's just the "rain" (street) tire issue if Karen ends up with narrower then Z06 wheels for DD duty ... something like ZR1 replicas.

Rita has been incredibly generous in lending us a set of two piece CCW's wheels while her shoulder recovers. Karen loves those wheels so much that she wanted to get them in one piece as her blingy street wheels, but CCW doesn't make them (1 piece) in 17", only 18" and larger.

It's a waste to get them in two piece as street wheels only ... and they're two expensive to buy two sets. Karen doesn't like the oem Z06 wheel design ... although they look "right", chromed, like Rita has for DD'ing on a Z06.

Posted: **Wed Dec 23, 2009 12:34 pm**

Shoes that look good??? Or shoes that fit right???

Posted: **Wed Dec 23, 2009 12:35 pm**

Mako Koiwai wrote:Of course ... it's just the "rain" (street) tire issue if Karen ends up with narrower then Z06 wheels for DD duty ... something like ZR1 replicas.

Rita has been incredibly generous in lending us a set of two piece CCW's wheels while her shoulder recovers. Karen loves those wheels so much that she wanted to get them in one piece as her blingy street wheels, but CCW doesn't make them (1 piece) in 17", only 18" and larger.

It's a waste to get them in two piece as street wheels only ... and they're two expensive to buy two sets. Karen doesn't like the oem Z06 wheel design ... although they look "right", chromed, like Rita has for DD'ing on a Z06.

The one-piece wheels are a different series, the Corsair. fyi the Classic is a three-piece wheel, not two. ;) The Classics come up for sale used more often than you might think, and being a three-piece, even if a used set is not the width you want, they can be rebuilt.

Posted: **Wed Dec 23, 2009 2:32 pm**

FWIW - for street use I use chrome C6 Z06 replica wheels (17x9.5 and 18x10.5). They look really nice, the downside is they are heavier than oem Z06 (about +5 lbs/corner), but for bling and street use I didn't care. Around 1k for new.

Posted: **Wed Dec 23, 2009 6:06 pm**

That's what I'm trying to get Karen to go for (chrome Z06 replicas) ... but she just doesn't like the oem design. I didn't either, but now I see them as being part of the original Z06 look. The chrome ones look great on Rita's car.

I thought they were three piece ... but could only count two parts ... besides the bolts ... which make them 87 piece wheels.

Posted: **Wed Dec 23, 2009 6:25 pm**

Mako,

Keep in mind that I'm talking about C6 (not c5) replica wheels. Very different.

Posted: **Wed Dec 23, 2009 9:45 pm**

Of course ... I don't think Rita is running C5 "Z06" replica wheels on her C5.

Karen is about as down to earth and practical as they come, but like a lot of women, she likes nice "shoes."

Posted: **Thu Dec 24, 2009 5:56 am**

Of course ... I don't think Rita is running C5 "Z06" replica wheels on her C6

I didn't know she had a C6, hench my confusing post.

Posted: **Thu Dec 24, 2009 10:30 am**

C5 Z-06 ... it's RITA !

Posted: **Thu Dec 24, 2009 10:48 am**

Mako Koiwai wrote:C6 Z-06 ... it's RITA !

Uhmmm, Mako, if Rita has a C6 Z06, that would be news to me..... ;)

Posted: **Thu Dec 24, 2009 11:15 am**

Oops ... too much eggnog! Of course C5 ! Arg ... sorry Steve

... need to check out those C6 Replica wheels if they're in Z06 sizes ... the ZR1 mesh wheels are sweet.

Posted: **Thu Dec 24, 2009 11:45 am**

These are Z06 size on my car. AFAIK they can be ordered in whatever width you want

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