Largest rear tires on C5 Z - Z06Vette.com - Corvette Z06 Forum
Z06Vette.com Z06Vette.com
Go Back   Z06Vette.com - Corvette Z06 Forum > C5 Z06 Specific Topics > C5 Z06 - Pit Road
Z06vette.com is the premier Chevrolet Corvette Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 04-08-2012, 09:31 AM   #1 (permalink)
Z06 Authority
 
Join Date: Jul 2002
Location: Pace, FL
Posts: 1,548
Largest rear tires on C5 Z

After searching and reading through the various posts here, I just want to make certain that 315/30/18 is the largest rear tire for a C5 Z06 with stock rims.

Also, want to make sure that there is no cutting of brake ducts and spacers required.

Any input is appreciated!

Cheers,
Jim
__________________
01 QS/ModRed, Lingenfelter H/C, B&B 2-tip Bullet, Headers, hi-flow cats, x-pipe, Hurst, Vararam, DTE Stage II Diff with 3.90 gears, RSG Son of Transzilla transmission, DTE Diff Strut - 433RWHP/395RWTQ - and I DRIVE IT as MUCH AS POSSIBLE! 121K+ miles and increasing daily!
NavyPhrog is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-08-2012, 09:52 AM   #2 (permalink)
Moderator
 
Jim Lembo's Avatar
 
Join Date: Dec 2003
Location: Alamosa CO
Posts: 5,424
Send a message via AIM to Jim Lembo
Lifetime Premium Member
Re: Largest rear tires on C5 Z

I've been running 315-30-18's on my car for a couple of years Jim. They fit the stock rim size and don't stick out past the fender lip. Can't say about the rear brake ducts as I removed mine years ogo when I was running 335 drag radials on 18x12" rims. (aftermarket) I need to put them back on, and I'm pretty sure the 315's will clear with the ducts on. I've never heard any different.

Jimbo
__________________
sig by GR8 White
'03 EB/mod blue, LME/V-Max 416, AFR 225's, Comp Custom cam from Pete at V-Max, 3" custom exhaust and lots of attitude! 10.47@133.38 :D Z06 Fest member III, IV, V, VI, VII, VIII, IX, X, XI, XII and Winterfests 1, 2, 3 & 4. 543rwhp/493rwtq, all motor!
Jim Lembo is offline   Reply With Quote
Old 04-08-2012, 10:29 AM   #3 (permalink)
Z06 Authority
 
Join Date: Jul 2002
Location: Pace, FL
Posts: 1,548
Re: Largest rear tires on C5 Z

Thanks Jimbo. Im pretty sure after the ZSpeedFest I am going to need new rear tires and figued I would go big!
__________________
01 QS/ModRed, Lingenfelter H/C, B&B 2-tip Bullet, Headers, hi-flow cats, x-pipe, Hurst, Vararam, DTE Stage II Diff with 3.90 gears, RSG Son of Transzilla transmission, DTE Diff Strut - 433RWHP/395RWTQ - and I DRIVE IT as MUCH AS POSSIBLE! 121K+ miles and increasing daily!
NavyPhrog is offline   Reply With Quote
Old 04-08-2012, 02:13 PM   #4 (permalink)
Premium Member (Lifetime)
 
ProfessorBlaze's Avatar
 
Join Date: Dec 2009
Location: El Paso, TX
Posts: 809
Send a message via AIM to ProfessorBlaze Send a message via MSN to ProfessorBlaze Send a message via Yahoo to ProfessorBlaze
Lifetime Premium Member
Re: Largest rear tires on C5 Z

stock is 26.12 for 295/35-18
only issue with running a 315/30-18 is that the circ is off a bit.
circ-25.44
stock front is 25.34..
__________________
2001 TR C5Z with some stock mods and 78k Miles! Check it ouuuuut!
http://www.cardomain.com/Ride/382066...rolet-corvette
It takes 8,460 bolts to assemble a car and 1 nut to scatter it all over the road.
ProfessorBlaze is offline   Reply With Quote
Old 04-08-2012, 04:53 PM   #5 (permalink)
Z06 Authority
 
Join Date: Jul 2002
Location: Pace, FL
Posts: 1,548
Re: Largest rear tires on C5 Z

Thanks Blaze. That small difference shouldnt impact active handling or anything like that would it?
__________________
01 QS/ModRed, Lingenfelter H/C, B&B 2-tip Bullet, Headers, hi-flow cats, x-pipe, Hurst, Vararam, DTE Stage II Diff with 3.90 gears, RSG Son of Transzilla transmission, DTE Diff Strut - 433RWHP/395RWTQ - and I DRIVE IT as MUCH AS POSSIBLE! 121K+ miles and increasing daily!
NavyPhrog is offline   Reply With Quote
Old 04-08-2012, 05:32 PM   #6 (permalink)
Junior Member
 
Join Date: Feb 2012
Location: Quebec
Posts: 35
Re: Largest rear tires on C5 Z

Im interested to know as well, will 315 tire be larger so that they actually *make round* hence reduce the surface touching the road?(with road racing in mind here not drag) Thank you!

JL

Last edited by Jlt230; 04-08-2012 at 05:35 PM.
Jlt230 is offline   Reply With Quote
Old 04-08-2012, 06:01 PM   #7 (permalink)
Moderator
 
Jim Lembo's Avatar
 
Join Date: Dec 2003
Location: Alamosa CO
Posts: 5,424
Send a message via AIM to Jim Lembo
Lifetime Premium Member
Re: Largest rear tires on C5 Z

Quote:
Originally Posted by NavyPhrog View Post
Thanks Blaze. That small difference shouldnt impact active handling or anything like that would it?
I have 275-40-17's in front with the 315-30-18's in back and NO issues with AH/TC at all. I have read on other forums where some have had issues because of the diameters front to back being too close. I have always called BS on that simply because I haven't had any codes, ever!

Jimbo
__________________
sig by GR8 White
'03 EB/mod blue, LME/V-Max 416, AFR 225's, Comp Custom cam from Pete at V-Max, 3" custom exhaust and lots of attitude! 10.47@133.38 :D Z06 Fest member III, IV, V, VI, VII, VIII, IX, X, XI, XII and Winterfests 1, 2, 3 & 4. 543rwhp/493rwtq, all motor!
Jim Lembo is offline   Reply With Quote
Old 04-08-2012, 07:56 PM   #8 (permalink)
Administrator
 
MikesZ06's Avatar
 
Join Date: Mar 2002
Location: Kansas City
Posts: 20,814
Lifetime Premium Member
Re: Largest rear tires on C5 Z

Used to run 315 BFG's on my C5 back in the day and never had any issues or codes.

Mike
MikesZ06 is offline   Reply With Quote
Old 04-09-2012, 06:06 PM   #9 (permalink)
Z06 Authority
 
Join Date: Jul 2002
Location: Pace, FL
Posts: 1,548
Re: Largest rear tires on C5 Z

Quote:
Originally Posted by Jlt230 View Post
Im interested to know as well, will 315 tire be larger so that they actually *make round* hence reduce the surface touching the road?(with road racing in mind here not drag) Thank you!

JL
Not sure I understand what you're trying to say with "make round". The wheel size remains constant at 18" so if anything, there will be more rubber on the road so to speak.

Again, not sure I understand what you mean by "make round"

Cheers,
Jim
__________________
01 QS/ModRed, Lingenfelter H/C, B&B 2-tip Bullet, Headers, hi-flow cats, x-pipe, Hurst, Vararam, DTE Stage II Diff with 3.90 gears, RSG Son of Transzilla transmission, DTE Diff Strut - 433RWHP/395RWTQ - and I DRIVE IT as MUCH AS POSSIBLE! 121K+ miles and increasing daily!
NavyPhrog is offline   Reply With Quote
Old 04-09-2012, 06:08 PM   #10 (permalink)
Z06 Authority
 
Join Date: Jul 2002
Location: Pace, FL
Posts: 1,548
Re: Largest rear tires on C5 Z

Thanks again Jimbo, and thanks Mike.

Right now I am running 275/40/17s on the front as well and 305/35/18s on the back with zero issues.
__________________
01 QS/ModRed, Lingenfelter H/C, B&B 2-tip Bullet, Headers, hi-flow cats, x-pipe, Hurst, Vararam, DTE Stage II Diff with 3.90 gears, RSG Son of Transzilla transmission, DTE Diff Strut - 433RWHP/395RWTQ - and I DRIVE IT as MUCH AS POSSIBLE! 121K+ miles and increasing daily!
NavyPhrog is offline   Reply With Quote
Old 04-09-2012, 07:42 PM   #11 (permalink)
Premium Member (Lifetime)
 
Join Date: Jul 2002
Posts: 1,960
Lifetime Premium Member
Re: Largest rear tires on C5 Z

I run 315/30 on stock rear wheels for HPDEs. My only complaint is that you can feel the car shift on the tire in fast transitions. The rim really needs to be a half inch wider. Once I got past the spooky factor, it was OK. They don't rub anywhere.
XFordGuy is offline   Reply With Quote
Old 04-10-2012, 02:20 PM   #12 (permalink)
Junior Member
 
Join Date: Feb 2012
Location: Quebec
Posts: 35
Re: Largest rear tires on C5 Z

Hmm i tried to draw what i mean, its exaggerated but i think it shows what i mean by the tire making a round if its too large for the rim, i may be all wrong and tell me if i am please Thanks!

JL

Jlt230 is offline   Reply With Quote
Old 04-10-2012, 03:10 PM   #13 (permalink)
Premium Member (Lifetime)
 
Join Date: Jul 2002
Posts: 1,960
Lifetime Premium Member
Re: Largest rear tires on C5 Z

The picture helps. Yes, the tires stick out beyond the face of the rim. Here's a picture of a 315/30 on a 10.5" stock wheel. The tire extends nearly 1/2" (12mm) from the rim face on each side.

The "excess tire" is the reason a 10.5" rim isn't optimal for the tire. The tire moving side to side is the cause of the unpleasant sensation in transitions I was describing above. I got used to it.

XFordGuy is offline   Reply With Quote
Old 04-10-2012, 03:47 PM   #14 (permalink)
Z06 Tech Advisor
 
racingvette's Avatar
 
Join Date: Nov 2008
Location: USA
Posts: 1,572
Premium Member
Re: Largest rear tires on C5 Z

Really need a wider then 10.5" rim for those tires
I use 335/30/18s on rears but on a 12" wide rim.
__________________
Mike M - 2001 / 2008 Z06s
racingvette is offline   Reply With Quote
Old 07-25-2012, 03:44 PM   #15 (permalink)
Z06 Member
 
Join Date: May 2005
Location: South Pasadena
Posts: 50
Re: Largest rear tires on C5 Z

We're running in a street tire class with our '03 Z06 ... using the rear wheel size in front, 18 X 9.5 with a 315/30/18 Kumho XS tire and a custom 17X12 CCW in the rear with 335/35/17 XS's.

The 18's give us great steering, the 17" rears help get the power down.

The rear wheels have about 3/8th inch off-set added so that we don't rub the fender liner on the inside.



__________________
Co-Driving '03 Z-06 in SCCA SS
Makofoto is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Z06Vette.com - Corvette Z06 Forum > C5 Z06 Specific Topics > C5 Z06 - Pit Road


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Can I use my rear tires for the front, and get 19's in the rear? Zee C5 Z06 - Grandstand 3 08-04-2011 08:33 PM
World's largest skateboard! jub jub The Garage (non Vette related) 7 07-16-2010 01:38 AM
Largest tire size? flyin6 C5 Z06 - Pit Road 10 11-28-2006 08:54 AM
Exxon = Largest Profit EVER! Roadracer247 The Garage (non Vette related) 11 10-27-2005 10:25 PM
One Of The Largest Z06 Allocations In The Country Rick1 Member Sales - Parts & Cars 0 12-05-2001 07:34 AM

» Log in
User Name:

Password:

Not a member yet?
Register Now!

» Insurance
» Latest Auto News
Cops Might Get Radar Guns’ That Spot Distracted Drivers
Police of the future could be able to detect distracted driving with
Mercedes-Benz C63 AMG Gets 4.0L Turbo V8
The Mercedes-Benz C63 AMG will benefit from the all-new GT. “The
Porsche Macan Plug-In Hybrid Rumored
The next Porsche to use a plug-in hybrid powertrain will be the Macan
» New Car Reviews
2015 Subaru Legacy 3.6R vs Chrysler 200S
Two All-New, All-Wheel Drive Family Sedans Square Off
2014 Paris Motor Show Preview
October 4 to 19
2015 BMW M4 Review
The M3 Plus
2015 Lincoln Navigator Review
The same, but different
2014 Mercedes-Benz ML350 BlueTec 4Matic
Drives Like a Dozer, Drinks Like a Dame
» Featured Product
» Wheel & Tire Center

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 12:54 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2