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2009 CTS-V, 2007 Z06
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Discussion Starter #1
well I know I have said I was going to report back to you all, but time just couldn't be found. Well since my v is up on blocks again to get a rim fixed thanks to the Dippy dealer here you have it. 275/35/18 2007 C6 Z06 rims on a 2009 CTS-V.

No rubbage, no issues what so ever. Drove around the block, did figure 8's at full lock and no rubbage. So.... if you guys want to, there is another option. I know the one picture looks like it sticks out past the fender but it's really not. I tried to get a good angle but it just wouldn't fit. I will note though, if you have a crappy tire balance you will probably rub the weights on the caliper.

I do like the "wide" stance look....

there you have it gents.... Don't give me crap about my rims or car, I know they are dirty, but it rained the night before I put her up on blocks, and I just got the z back from putting cats on her so she is dirty too.... sorry...















 

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1991 Sedan Deville
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2,932 Posts
For some reason they don't seem as big in the wheel-well as the stock wheels, are they a smaller diameter? Love the black accents on your car, looks great.
 

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2009 CTS-V, 2007 Z06
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2,843 Posts
Discussion Starter #5
@V-Eight stock cts-v are 19's.

so yeah they are smaller. (z06 are 18's) Thanks for the compliment

@yooper, thanks :) and I think so too :)

@joeycts-V and yes they fit on the rear. IT's what everyone is running the MT's on. No point in trying them on the rear (although do have these ready to go on now :) )

sorry about the foot, but when you only have one foot to balance on and trying to take a pic, sometimes it gets stuck in the pic :(

 

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2009 CTS-V
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816 Posts
Dammit Dom, you just made me totally reconsider what I'm going to do when it's time to take the snow tires off. :)

Thanks for getting this done for us.
 

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'09 CTS-V, 3K miles & '87 Turbo Buick, 29K miles
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3,435 Posts
Beautiful CTS-V, Dom, especially the blackout trim against the silver exterior. How about a straight on shot of the rear to see the rear blackout treatment. Good info on the rim swap, too, although I miss the look of the stock rims and their contour treatment.
 

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4,150 Posts
Dom,

I would be interested in putting a complete set on the V.
There rears are 19X12 with 325 rubber. What is the offset on the rears and will they fit on the V?
Could you try that for me and take some pics?



18 x 9.5-inch cast-spun aluminum wheels and 275/35ZR18 tires in the front
19 x 12-inch cast-spun aluminum wheels with 325/30ZR19 tires in the rear
 

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2011 CTS-V Sedan
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1,729 Posts
I would definitely go this route if they were 19's. I'm sure some company makes knock-offs for the vette in 19's; i'll have to ask my vette friends. cbloveday, if i'm not mistaken the rears will not fit.
 

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2009 CTS-V, 2007 Z06
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2,843 Posts
Discussion Starter #11
Dammit Dom, you just made me totally reconsider what I'm going to do when it's time to take the snow tires off. :)

Thanks for getting this done for us.
ha ha ha, well be sure to let us know what you decide. We will want to see it :)

Beautiful CTS-V, Dom, especially the blackout trim against the silver exterior. How about a straight on shot of the rear to see the rear blackout treatment. Good info on the rim swap, too, although I miss the look of the stock rims and their contour treatment.
Thanks Gary. I think I have a pic of the back.....

I now have a blacked out OU plate frame, I just don't have a pic of it, so it is totally black now. nm no good pic... i'll work on that when I can drive her out of the garage again.

Dom,

I would be interested in putting a complete set on the V.
There rears are 19X12 with 325 rubber. What is the offset on the rears and will they fit on the V?
Could you try that for me and take some pics?



18 x 9.5-inch cast-spun aluminum wheels and 275/35ZR18 tires in the front
19 x 12-inch cast-spun aluminum wheels with 325/30ZR19 tires in the rear
The rears WILL NOT FIT. well ok you can make them fit but you need a spacer and I dont' have one, and then you will need to tie back a line with some zip ties. I'd just get the front's in a 19" knock off and call it good. but it is what it is. You kinda have to decide....

I would definitely go this route if they were 19's. I'm sure some company makes nock-offs for the vette in 19's; i'll have to ask my vette friends. cbloveday, if i'm not mistaken the rears will not fit.
u r correct.
 

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I really like the way the rims show off our calipers. They may be easier to clean too.

I guess you could try and find some wheels with exact or similar offset.
 

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2009 CTS-V
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816 Posts
ha ha ha, well be sure to let us know what you decide. We will want to see it :)
Dom, I believe I've figured out how to do this without spacers and keeping similar tire heights front and rear, I was just waiting to hear whether the front 18's would fit our CTS-V's. Thanks again for the test fitting. I'm going to Fl next week, but I'll be getting the parts shipments going as soon as I return and see how it works out. If it doesn't, it could be an expensive experiment. :(

For shits and giggles, I might just confirm my C6 z06 rims fit the front of my "V" with a static fit. I have 305 DRs on them though, so I'm sure they would rub if I drove on them as is. Just want to confirm that the wheel clears the calipers on mine too. Sounds like it's real close on your car.

Be pretty cool to have all the rims match at the track again. :thumbsup:
 

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2009 CTS-V, 2007 Z06
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2,843 Posts
Discussion Starter #14
Gnxs,

Please let me know what you do and if it works. I'd love to get some different rims and what not

I'll tell you now no way the 305's fit on the front. When I tested for rubbers they barely clear the back arm that comes down from the top (sorry not sure what it's called) the calipers clear with about a .3 in clearance so plenty of room. Only issue would be if the sticky weights were not located directly up against the edge...

Hope all this helps.
 

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2009 CTS-V
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816 Posts
interesting, i wonder if anyone has posted pics of this particular setup?
Several people run this setup for mounting their drag radials. I don't run these wheels on the street, only at the track. This setup is .6" shallower (less backspacing) than the factory rims. I don't have many pics of it, but here goes. First link is a video:

RIGHT CLICK, SAVE AS ONLY:
http://home.comcast.net/~gnxs3/gnxsrace2.wmv



 

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'09 CTS-V, Thunder Gray, Auto
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221 Posts
I have a question for those of you using C6 Z06 wheels.

Do you think I would have any interference with 275-40-18 tires (instead of the Z06: 275-35-18)?

I am looking for a set of wheels for track days to save wear-and-tear on the very expensive PS2 Michelins. The 40-series tires are closer to the stock diameter (26.6" vs. Stock 26.9").

I would be using the same size all the way around so I could rotate them at the track. I have found track days to be very hard on the outside edge of the front tires.

Any advice would be appreciated.
 
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