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Old 12-02-2013, 12:21 PM   #1
halp
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Default 18s all around

Due to stock tire availability I am thinking of going to 18 inch rims on the front. planning on using 275-35/18 on stock rear rims for front and staying with 295-35/18 for rears. Looking at Conti Extreme DWs.
Will this set up cause any traction / active handling problems and how will it look vs stock sizes? appreciate any pics with this combo.
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Old 12-02-2013, 02:57 PM   #2
tlove32
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I used to run the exact same size tires - no issue at all. Below is a pic:



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Old 12-03-2013, 08:16 AM   #3
Driver220
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Just 2 weeks ago I put 18s all around on my 02z...with the original F1 295s all around as well. I get some weird bump skipping if youre at full lock going slow, but nothing in normal driving. Made the size upgrade to make it easier to get tires in the spring (and rotate them). Going with Michelin Pilot Super Sports all around 285/35/18s. Theres another member running the same setup with no issues. I dont think youll have any problems with your setup. Id suggest even running a square setup like I plan to do to let you rotate your tires. Happy motoring!
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Old 12-03-2013, 06:02 PM   #4
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Quote:
Originally Posted by Driver220 View Post
Just 2 weeks ago I put 18s all around on my 02z...with the original F1 295s all around as well. I get some weird bump skipping if youre at full lock going slow, but nothing in normal driving. Made the size upgrade to make it easier to get tires in the spring (and rotate them). Going with Michelin Pilot Super Sports all around 285/35/18s. Theres another member running the same setup with no issues. I dont think youll have any problems with your setup. Id suggest even running a square setup like I plan to do to let you rotate your tires. Happy motoring!
Won't the square set up cause problems with AH/TC. Thought that the rear tire needed to be taller than the front tire.
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Old 12-03-2013, 06:14 PM   #5
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In theory, yes. In practice, no. I did a ton of research on it and couldnt find one case of the TC not liking the square setup, even in track settings.
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Old 12-05-2013, 01:45 AM   #6
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I'm running the exact same set up as the op is asking about.....no issues at all with mine. I also run another set of 18" Speedlines at the track with a 315/30 squared setup with zero issues.
Here is a shot with 295/35/18 rear and 275/35/18 front

Click the image to open in full size.

And a shot with my 315/30/18 squared set up

Click the image to open in full size.
__________________
2004 Z06
*StopTech BBK ST60 front, ST40 rear
*DRM brake duct kit
*LG spindle ducts
*Motul 660 brake fluid
*LG G2 Coilovers
*Track alignment & Corner Balanced
*T1 sway bars; front/ rear
*Front & Rear Bump Steer Kit
*Prothane Control arm bushings
*B&M short shifter
*Blackwing intake
*Cobra Suzuka Pro seats
*Schroth 6 point harnesses
*Brey Krause harness bar
*18x10.5 Speedlines with 295/35/18 rear and 275/35/18 front for street
*18x10.5 Speedlines with 315/30/18 R comps for track
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Old 12-05-2013, 03:23 AM   #7
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I planned to chime in here, but these guys got it covered
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Old 12-05-2013, 06:25 PM   #8
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Quote:
Originally Posted by ktlocklear View Post
I'm running the exact same set up as the op is asking about.....no issues at all with mine. I also run another set of 18" Speedlines at the track with a 315/30 squared setup with zero issues.
Here is a shot with 295/35/18 rear and 275/35/18 front

Click the image to open in full size.

And a shot with my 315/30/18 squared set up

Click the image to open in full size.
Thanks for all the inputs. Looks like 18s all around are the way to go.
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Old 12-05-2013, 08:33 PM   #9
LT1driver
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conti dw my next tire, next year, i have 18x9.5 and 18x11 with 265 and 295/18 currently, but no longer available in brand i have
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Old 12-06-2013, 12:55 AM   #10
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Quote:
Originally Posted by Driver220 View Post
In theory, yes. In practice, no. I did a ton of research on it and couldnt find one case of the TC not liking the square setup, even in track settings.
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Old 12-06-2013, 02:02 AM   #11
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The Michelin PSS also fit fine all the way down to 265 wide on the stock rears. 4x rears with 265 PSS's:

Click the image to open in full size.
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Old 12-06-2013, 12:48 PM   #12
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Thanks for all the inputs. Looks like 18s all around are the way to go.
Easy to find and performs well

Pfadt Race Engineering
888-972-2464
info@pfadtracing.com

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Old 12-08-2013, 08:07 AM   #13
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I'm running 265/35/18 on the front with no issues. The 275's won't cause any problems either.

Rick
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Old 12-08-2013, 11:36 AM   #14
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Originally Posted by C5Longhorn View Post
I'm running 265/35/18 on the front with no issues. The 275's won't cause any problems either.

Rick
Just curious, why 265 and not 275? Does the 265 front look better with the 295 rear or is it due to brand availability?
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Old 12-08-2013, 01:27 PM   #15
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265/35/18 is the closest size to the stock tire dimensions. I'm running Extreme contact DW's and they are available in both sizes. There is also not much difference if you step up to a 275 width tire.

Looks wise. I don't think there will be a drastic difference but some of it will depend on rim width also.

Rick

Last edited by C5Longhorn; 12-08-2013 at 01:37 PM.
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Old 12-08-2013, 05:24 PM   #16
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I'm running 18's all the way around...great choice IMO.
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Old 12-09-2013, 11:34 AM   #17
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Quote:
Originally Posted by C5Longhorn View Post
265/35/18 is the closest size to the stock tire dimensions. I'm running Extreme contact DW's and they are available in both sizes. There is also not much difference if you step up to a 275 width tire.

Looks wise. I don't think there will be a drastic difference but some of it will depend on rim width also.

Rick
I'm planning on running 10 1/2 wide rims all around (stock speedline Z06 rears).
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Old 12-10-2013, 12:47 PM   #18
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Quote:
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I'm planning on running 10 1/2 wide rims all around (stock speedline Z06 rears).
Ok, then you probably want the 275 size in that case.
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Old 12-10-2013, 02:55 PM   #19
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265/35R18 will mount just fine on the factory 10.5-inch wheels

There are cars that run 265/35R19 rears on 10+" wheels from the factory
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Old 12-10-2013, 03:09 PM   #20
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Quote:
Originally Posted by ktlocklear View Post
I'm running the exact same set up as the op is asking about.....no issues at all with mine. I also run another set of 18" Speedlines at the track with a 315/30 squared setup with zero issues.
Here is a shot with 295/35/18 rear and 275/35/18 front

Click the image to open in full size.

And a shot with my 315/30/18 squared set up

Click the image to open in full size.

Kinda off topic, isnt speedline who made them for 01? From my reading the 01 wheels were lighter right?
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Old 12-10-2013, 03:09 PM
 
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