18x9 rear wheel selection - Pontiac GTO Forum
User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 22 (permalink) Old 11-10-2012, 03:36 AM Thread Starter
 
Giacobazzi's Avatar
 
Join Date: Aug 2012
Location: Las Vegas NV
Posts: 51
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
18x9 rear wheel selection

I am doing new wheels and tires very soon and am seriously thinking bout the 18x9's in back with the 275's mentioned in the "wheel fitment" thread. My Q is what are my offset tolerances that I can do on that back wheel, and what are my choices in wheel style. When i do a search, I don't see many 18x9's in an offset that I would need, at least not on tire rack, and a few other wheel suppliers. Also I'm not gonna spend mega $ for this. I see wheels I like for $135-$185 per wheel, but in 18x8. Where should I be looking?

Thanks!

Giaco
Giacobazzi is offline  
Sponsored Links
Advertisement
 
post #2 of 22 (permalink) Old 11-10-2012, 08:11 AM
Former Moderator
 
svede1212's Avatar
 
Join Date: Oct 2005
Location: Grand Rapids, Michigan
Posts: 4,081
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 25 Post(s)
Garage
Ideally you'd like to be in the mid +50s offset. Depending on how aggressively you roll or cut the fenders and tire width (different brands are different widths of the same "size") you could go down to +40. There are only a handful of wheels that fit that definition without going custom.

2004 Blk/Rd M6
6.3 litre LS1

Built and tuned by svede
svede1212 is offline  
post #3 of 22 (permalink) Old 11-10-2012, 10:24 AM Thread Starter
 
Giacobazzi's Avatar
 
Join Date: Aug 2012
Location: Las Vegas NV
Posts: 51
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by svede1212 View Post
Ideally you'd like to be in the mid +50s offset. Depending on how aggressively you roll or cut the fenders and tire width (different brands are different widths of the same "size") you could go down to +40. There are only a handful of wheels that fit that definition without going custom.
Here is the fitment info I was referring to. Was on another forum. Anyway if its too difficult, like price or availability, I will just do the 245/40/18's all around. But alota beef out back is always tuff looking

Factory wheels & tires:
17x8 w/ 245/45/17
55lbs each (wheel & tire)
5x120mm stud pattern
48mm backspacing

17's
Front:
245/45/17 is still the best fit
255/40/17 fit but had to use a 8.5" wide wheel, the required backspacing hadthe wheels/tire sticking out too from the body line
275/40/17 didn't fit, using a 9" wide wheel, the tire was rubbibg the strut. Again using a different backspacing would have the set sticking out too far

ROH Drift R 17x8 w/ 245/45/17 - 47lbs
ROH Drift R 17x9 w/275/40/17 - 49lbs

Rear:
275/40/17 fit no problems on a 17x9" wheel
These stick out just a little more than the factory tires, but I think they still look great!

Recommendation for 17" wheels: Use your factory tires and and put them on 17x8" custom wheels or 17x8" wheel front w/ 245/45/17 tires and 17x9" wheel rear w/ 275/40/17 tires

Personally I would just reuse the factory tires and put 17x8" wheels at all four corners. This will be cheaper to do and looks good.

18's
By far the best way to go!!

Front:
18x8 w/ a 245/40/18 tire - fit is perfect
18x8.5 w/ 255/40/18 - again sticks out too far

Rear:
18x9 w/ a 275/35/18 tire - fit is perfect

Recommendation for 18" wheels: Without a doubt the best set is 18x8 up front with 245/45/18 matched with 18x9 out back w/ 275/35/18. This set looks great, fits porportionally and lets you pick up some width out back. The ride quality is also great. Or use 18x8 and 245/40/18 at all four corners.

ROH Drift R 18x8 w/ a 245/40/18 tire - 49lbs
ROH Drift R 18x9 w/ a 275/35/18 tire - 51lbs

19's

Front
245/35/19 on a 19x8" wheel

Rear
275/30/19 on a 19x9" wheel

Recommendation for 19" wheels: GO BACK TO 18"!! While the look great on the car the ride quality is horrible. If you could care less about feeling every bump in the road and want all the look, these are for you. If you just gotta have them then use 19x8 w/ 245/35/19 front and 19x9 w/ 275/35/19 rear or the 19x9 w/ 245/35/19 all the way around.

Giaco

Last edited by Giacobazzi; 11-10-2012 at 11:45 PM.
Giacobazzi is offline  
 
post #4 of 22 (permalink) Old 02-20-2013, 01:53 AM
 
blackwidow's Avatar
 
Join Date: Jan 2013
Location: Loganville, Georgia
Posts: 46
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Was hoping to get 18" by 9" all the way around on my ride...do you think wider wheels would work with aftermarket, smaller diameter struts up front and inboard-mounted coils out back?
blackwidow is offline  
post #5 of 22 (permalink) Old 02-26-2013, 10:20 PM
 
Steamwalker's Avatar
 
Join Date: Mar 2012
Location: Vista, CA
Posts: 282
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
18x9s with +45 offset on my rear with 265s on them. Fender mildly cut. If I rolled the fenders or cut more of the fender, I'd easily fit 275s back there, no problem. Not lowered here at all though.

06/QSM/A4
SoCal Goat Club
Steamwalker is offline  
post #6 of 22 (permalink) Old 02-27-2013, 05:45 PM
Former Moderator
 
svede1212's Avatar
 
Join Date: Oct 2005
Location: Grand Rapids, Michigan
Posts: 4,081
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 25 Post(s)
Garage
9" on the front would be hard to do right. It isn't just the strut but also the wheel well because you're turning the wheels unlike the back. If you go with 18x8 front and 18x9 back with the back's offset 45-55 you would be pretty safe and be able to put meatier tires back there effectively.

2004 Blk/Rd M6
6.3 litre LS1

Built and tuned by svede
svede1212 is offline  
post #7 of 22 (permalink) Old 03-04-2013, 02:28 PM
 
blackwidow's Avatar
 
Join Date: Jan 2013
Location: Loganville, Georgia
Posts: 46
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by svede1212 View Post
9" on the front would be hard to do right. It isn't just the strut but also the wheel well because you're turning the wheels unlike the back. If you go with 18x8 front and 18x9 back with the back's offset 45-55 you would be pretty safe and be able to put meatier tires back there effectively.
would an 18x8 be too narrow for a 255? most tire sites recommend an 8.5 - 10, but its only a half inch...
blackwidow is offline  
post #8 of 22 (permalink) Old 03-04-2013, 06:29 PM
 
Steamwalker's Avatar
 
Join Date: Mar 2012
Location: Vista, CA
Posts: 282
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Honestly, you are not going to see any benefit running a 255 on an 18x8 than a 245 on an 18x8.

06/QSM/A4
SoCal Goat Club
Steamwalker is offline  
post #9 of 22 (permalink) Old 03-05-2013, 09:08 AM
Former Moderator
 
svede1212's Avatar
 
Join Date: Oct 2005
Location: Grand Rapids, Michigan
Posts: 4,081
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 25 Post(s)
Garage
The only benefit you see is with certain brands. Nittos for instance are a size smaller than BFGs. I went up a size going to Nitto to keep the same tread on the ground as my "smaller" old tires

2004 Blk/Rd M6
6.3 litre LS1

Built and tuned by svede
svede1212 is offline  
post #10 of 22 (permalink) Old 03-05-2013, 12:27 PM
 
blackwidow's Avatar
 
Join Date: Jan 2013
Location: Loganville, Georgia
Posts: 46
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by svede1212 View Post
The only benefit you see is with certain brands. Nittos for instance are a size smaller than BFGs. I went up a size going to Nitto to keep the same tread on the ground as my "smaller" old tires
ever heard anybody running the hankook ventus v12 evo's? do these tend to run wide or narrow? These are what i'm putting on the goat...got 285/35/18 for the rear, and looking at 255/40/18 or 255/35/18 for the front.
blackwidow is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 2004-2006 GTO > Wheels and tires

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
whats the 2 rubber plugs at the back rear wheel, wheel well?.... pctek 2004-2006 GTO General Discussion 2 10-15-2018 08:00 AM
Fitment on ARC-8 18x9" Wheel DementedSix0 Wheels and tires 9 06-09-2012 07:55 PM
HELP!!! 18x9" with +38 offset fit on REAR?? GTOFEVR Wheels and tires 6 04-14-2010 11:44 AM
Need help with cam selection biffman Engine Discussions 16 10-01-2009 08:10 AM

Posting Rules  
You may post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome