ZPOST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   ZPOST > BMW Z4 Technical Talk > Wheels and Tires
  TireRack

SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS!
Post Reply
 
Thread Tools Search this Thread
      12-20-2012, 11:13 AM   #155
3002 tii
Major General
 
3002 tii's Avatar
 
Drives: flat out
Join Date: Apr 2008
Location: NNJ

Posts: 8,286
iTrader: (46)

Garage List
Quote:
Originally Posted by donoman View Post
It's more of a streetability and tire life issue... I'm still deciding whether I should copy your setup (17x9.5ET35+camber_plates) or just go 17x19.0ET30. I really don't want to start heavily modifying my street car ... especially since "my other car is a 911"
Check with the guys at Apex, all those wheel fitments were on stock suspension so you may be able to get away without camber plates. But if you used those fixed plates I was referring to, your tire wear wouldn't be excessive. In fact I think I may have had less than 1.8*, maybe closer to 1.5* which is totally streetable.
__________________

Recaro | Volk | AST | Vorshlag | Quaife | Stoptech | Active Autowerke | BMW Performance

Click here for my track videos
3002 tii is offline   United_States
0
Reply With Quote
      01-07-2013, 08:37 PM   #156
TAL2GK
Enlisted Member
 
TAL2GK's Avatar
 
Drives: 2003 Z4 2.5i
Join Date: Jan 2013
Location: Charlotte, NC

Posts: 44
iTrader: (0)

This is a great thread. Buying a new set of wheels is more involved than I would have guessed, especially since I'm trying to keep a stock look.
TAL2GK is offline  
0
Reply With Quote
      03-25-2013, 03:06 PM   #157
lrcigar
Enlisted Member
 
Drives: 2003 2.5 Roadster
Join Date: Feb 2009
Location: NYC and PA.

Posts: 45
iTrader: (0)

Hello all,

I need help deciding what tires to get.

I have 2.5i non sport with Apex arc-8, 18x8.5 et38 with Hankook ventus V12 225/40/18 up front, on the rear I have 18x9 et42 with V12's 255/35/18. When I first got them, I had a stock suspension. I recently installed a set of H&R street performance coilovers. There is no rubbing with this set up. But the tires just look too skinny for my liking. I'd like to replaced the tires with meatier looking tires to fill in the wheel well. I'm considering for the front 235/40/18 or 225/45/18. for the rear 265/35/18 or 255/40/18. Any thoughts or suggestions?

Thanks

Last edited by lrcigar; 03-27-2013 at 08:20 AM.
lrcigar is offline   United_States
0
Reply With Quote
      03-26-2013, 03:06 AM   #158
StigJ
Second Lieutenant
 
StigJ's Avatar
 
Drives: '07 Z4 Coupe 3.0Si
Join Date: Jun 2010
Location: Stavanger, Norway

Posts: 280
iTrader: (0)

235/40 on 8,5 is perfect. I think 265/35 also would look good on 9". A nice meaty look.
__________________

Hellrot '06 BMW Z4 3.0si Coupe
Starlight Blue '13 MINI Paceman Cooper
StigJ is offline   Norway
0
Reply With Quote
      03-29-2013, 12:45 PM   #159
lrcigar
Enlisted Member
 
Drives: 2003 2.5 Roadster
Join Date: Feb 2009
Location: NYC and PA.

Posts: 45
iTrader: (0)

Quote:
Originally Posted by StigJ View Post
235/40 on 8,5 is perfect. I think 265/35 also would look good on 9". A nice meaty look.
Thanks,

I'll give that size a try and post some pictures in a couple of weeks.
lrcigar is offline   United_States
0
Reply With Quote
      03-29-2013, 01:58 PM   #160
3002 tii
Major General
 
3002 tii's Avatar
 
Drives: flat out
Join Date: Apr 2008
Location: NNJ

Posts: 8,286
iTrader: (46)

Garage List
Quote:
Originally Posted by lrcigar View Post
Thanks,

I'll give that size a try and post some pictures in a couple of weeks.
235/40 may rub up front with 38 offset.
__________________

Recaro | Volk | AST | Vorshlag | Quaife | Stoptech | Active Autowerke | BMW Performance

Click here for my track videos
3002 tii is offline   United_States
0
Reply With Quote
      03-29-2013, 09:19 PM   #161
lrcigar
Enlisted Member
 
Drives: 2003 2.5 Roadster
Join Date: Feb 2009
Location: NYC and PA.

Posts: 45
iTrader: (0)

Quote:
Originally Posted by DSC_OFF View Post
235/40 may rub up front with 38 offset.
Would spacers help?
lrcigar is offline   United_States
0
Reply With Quote
      03-29-2013, 09:23 PM   #162
3002 tii
Major General
 
3002 tii's Avatar
 
Drives: flat out
Join Date: Apr 2008
Location: NNJ

Posts: 8,286
iTrader: (46)

Garage List
Quote:
Originally Posted by lrcigar View Post
Would spacers help?
No, spacers if anything might worsen it. Spacers will push the wheels out, and would only be helpful if you were rubbing against the inside, ie the suspension parts.

Your issue with a 235/40 on 8.5" and 38 offset is that

1) the wheel is sticking further out than it normally would
2) the 235/40 tire is 1/3rd" TALLER than a 225/40

I think it'll rub because I once ran a style 197 (oem sport wheel off the e90 328i) and that had a 8" front and high 30 offset. I too ran a 235/40-18 and I rubbed against the outer fender liner, right by the sidemarker. So given that you're running a rim that's 0.5" wider, I would think you'd encounter the same issue.

I would stick to a 225/40-18 up front and 255/35-18 in the rear. It'll look a tiny bit stretched but nothing to be overly concerned with. If you're set on running a 235/40, adding negative camber may help.
__________________

Recaro | Volk | AST | Vorshlag | Quaife | Stoptech | Active Autowerke | BMW Performance

Click here for my track videos
3002 tii is offline   United_States
0
Reply With Quote
      03-31-2013, 09:57 AM   #163
lrcigar
Enlisted Member
 
Drives: 2003 2.5 Roadster
Join Date: Feb 2009
Location: NYC and PA.

Posts: 45
iTrader: (0)

Quote:
Originally Posted by DSC_OFF View Post
No, spacers if anything might worsen it. Spacers will push the wheels out, and would only be helpful if you were rubbing against the inside, ie the suspension parts.

Your issue with a 235/40 on 8.5" and 38 offset is that

1) the wheel is sticking further out than it normally would
2) the 235/40 tire is 1/3rd" TALLER than a 225/40

I think it'll rub because I once ran a style 197 (oem sport wheel off the e90 328i) and that had a 8" front and high 30 offset. I too ran a 235/40-18 and I rubbed against the outer fender liner, right by the sidemarker. So given that you're running a rim that's 0.5" wider, I would think you'd encounter the same issue.

I would stick to a 225/40-18 up front and 255/35-18 in the rear. It'll look a tiny bit stretched but nothing to be overly concerned with. If you're set on running a 235/40, adding negative camber may help.
Thanks, I think your right, it will rub up front. I can live with the front with 225/40/18. But the rears just look too thin for me. I may just replace the rears with 265/35/18, and raise the coil overs 1/2" since they are 1/3" taller.
Attached Images
 
lrcigar is offline   United_States
0
Reply With Quote
      04-19-2013, 01:44 AM   #164
Hocken
New Member
 
Drives: Z4 Cou
Join Date: Apr 2013
Location: swe

Posts: 6
iTrader: (0)

Hi all

Planning to get new wheels and like the wide look..
I have found following:

8,5x19 et38
10x19 et33

I believe it will work if i run 225/35 and 235/35 ?
Got the m-tech chassi... But like an additional drop.

What you think ?
Hocken is offline  
0
Reply With Quote
      04-19-2013, 02:28 AM   #165
Hocken
New Member
 
Drives: Z4 Cou
Join Date: Apr 2013
Location: swe

Posts: 6
iTrader: (0)

I prefer to run 215/35 and 245/30...
But the 245s are a pretty expensive dimension :/
Hocken is offline  
0
Reply With Quote
      04-27-2013, 04:41 PM   #166
Aries326
Major
 
Aries326's Avatar
 
Drives: 2008 Z4 3.0si
Join Date: Aug 2011
Location: NY

Posts: 1,115
iTrader: (2)

Garage List
Quote:
Originally Posted by lrcigar
Quote:
Originally Posted by DSC_OFF View Post
No, spacers if anything might worsen it. Spacers will push the wheels out, and would only be helpful if you were rubbing against the inside, ie the suspension parts.

Your issue with a 235/40 on 8.5" and 38 offset is that

1) the wheel is sticking further out than it normally would
2) the 235/40 tire is 1/3rd" TALLER than a 225/40

I think it'll rub because I once ran a style 197 (oem sport wheel off the e90 328i) and that had a 8" front and high 30 offset. I too ran a 235/40-18 and I rubbed against the outer fender liner, right by the sidemarker. So given that you're running a rim that's 0.5" wider, I would think you'd encounter the same issue.

I would stick to a 225/40-18 up front and 255/35-18 in the rear. It'll look a tiny bit stretched but nothing to be overly concerned with. If you're set on running a 235/40, adding negative camber may help.
Thanks, I think your right, it will rub up front. I can live with the front with 225/40/18. But the rears just look too thin for me. I may just replace the rears with 265/35/18, and raise the coil overs 1/2" since they are 1/3" taller.
Thanks for sharing a pic of your car. I think your wheels look great. It really helps me decide on what to get. I'm now convinced to stick with the EC-7s I've been wanting to get with the stock tire sizes - 225 in front and 255 in rear. It has the stretched look I'm looking for without going to 19" wheels.
__________________
Aries326 is offline   United_States
0
Reply With Quote
      04-29-2013, 01:13 PM   #167
lrcigar
Enlisted Member
 
Drives: 2003 2.5 Roadster
Join Date: Feb 2009
Location: NYC and PA.

Posts: 45
iTrader: (0)

Quote:
Originally Posted by lrcigar View Post
Thanks, I think your right, it will rub up front. I can live with the front with 225/40/18. But the rears just look too thin for me. I may just replace the rears with 265/35/18, and raise the coil overs 1/2" since they are 1/3" taller.
I decided to take a chance and went ahead got 235/40 front, and 256/35 rears. Raised the coilovers 3/4" front and 1' rear. I'm very happy with the look. and no rubbing at all.
Attached Images
 
lrcigar is offline   United_States
0
Reply With Quote
      05-03-2013, 07:16 AM   #168
Hocken
New Member
 
Drives: Z4 Cou
Join Date: Apr 2013
Location: swe

Posts: 6
iTrader: (0)

No rub...
Attached Images
    
Hocken is offline  
0
Reply With Quote
      05-03-2013, 07:37 AM   #169
Aries326
Major
 
Aries326's Avatar
 
Drives: 2008 Z4 3.0si
Join Date: Aug 2011
Location: NY

Posts: 1,115
iTrader: (2)

Garage List
Quote:
Originally Posted by lrcigar View Post
I decided to take a chance and went ahead got 235/40 front, and 256/35 rears. Raised the coilovers 3/4" front and 1' rear. I'm very happy with the look. and no rubbing at all.

Looks great! I wonder how much more you can lower your coilovers without rubbing.
Aries326 is offline   United_States
0
Reply With Quote
      05-03-2013, 09:19 AM   #170
3002 tii
Major General
 
3002 tii's Avatar
 
Drives: flat out
Join Date: Apr 2008
Location: NNJ

Posts: 8,286
iTrader: (46)

Garage List
Quote:
Originally Posted by lrcigar View Post
I decided to take a chance and went ahead got 235/40 front, and 256/35 rears. Raised the coilovers 3/4" front and 1' rear. I'm very happy with the look. and no rubbing at all.
Just becareful the running isn't noticeable at first (not static) but develops over time as you drive the car, go over bumps, turn full lock, etc.
__________________

Recaro | Volk | AST | Vorshlag | Quaife | Stoptech | Active Autowerke | BMW Performance

Click here for my track videos
3002 tii is offline   United_States
0
Reply With Quote
      05-04-2013, 03:35 PM   #171
lrcigar
Enlisted Member
 
Drives: 2003 2.5 Roadster
Join Date: Feb 2009
Location: NYC and PA.

Posts: 45
iTrader: (0)

Quote:
Originally Posted by Aries326 View Post
Looks great! I wonder how much more you can lower your coilovers without rubbing.
Thanks,
I might go 1/2" lower in the future, but I like the way it looks now.
lrcigar is offline   United_States
0
Reply With Quote
      05-04-2013, 03:38 PM   #172
lrcigar
Enlisted Member
 
Drives: 2003 2.5 Roadster
Join Date: Feb 2009
Location: NYC and PA.

Posts: 45
iTrader: (0)

Quote:
Originally Posted by DSC_OFF View Post
Just becareful the running isn't noticeable at first (not static) but develops over time as you drive the car, go over bumps, turn full lock, etc.
Thanks for the heads up. I'll keep everyone posted if any thing changes.
lrcigar is offline   United_States
0
Reply With Quote
      05-12-2013, 07:41 PM   #173
Aries326
Major
 
Aries326's Avatar
 
Drives: 2008 Z4 3.0si
Join Date: Aug 2011
Location: NY

Posts: 1,115
iTrader: (2)

Garage List
Quote:
Originally Posted by lrcigar
Quote:
Originally Posted by Aries326 View Post
Looks great! I wonder how much more you can lower your coilovers without rubbing.
Thanks,
I might go 1/2" lower in the future, but I like the way it looks now.
Where'd you buy your wheels and tires? My run flats are getting to the point where they need replacing. I'd like to get the tires already mounted.
Can anyone else recommend a reliable place?
__________________
Aries326 is offline   United_States
0
Reply With Quote
      05-16-2013, 03:48 PM   #174
lrcigar
Enlisted Member
 
Drives: 2003 2.5 Roadster
Join Date: Feb 2009
Location: NYC and PA.

Posts: 45
iTrader: (0)

Quote:
Originally Posted by Aries326 View Post
Where'd you buy your wheels and tires? My run flats are getting to the point where they need replacing. I'd like to get the tires already mounted.
Can anyone else recommend a reliable place?
I got the wheels from apex, and the tires from tire rack. I took the car to precision auto works in long island city, NY. They also had installed my coilovers, and made the final adjustments.
lrcigar is offline   United_States
0
Reply With Quote
      05-28-2013, 10:06 PM   #175
3point0
Lieutenant
 
3point0's Avatar
 
Drives: 2005 z4 3.0
Join Date: Jun 2012
Location: Vancouver

Posts: 410
iTrader: (2)

Garage List
2006 Audi S4 Avant  [0.00]
2005 BMW Z4  [2.75]
thanks for all the info everyone, really useful. With summer just around the corner,I'm starting to search for wheels as my rubber likely won't last till the fall (my 108's have some kerbing from the PO and fixing them is almost as much as a new set of wheels) So I figured I'd step up to 19s. So I'm looking into sizing them correctly etc.
Thing is, I'm not sure what different suspension geometries are around, some people talk of zhp and sport suspensions, but I'm not sure what identifies either on the car. I think I'm running stock although my car does have the sport and premium packages if that makes a difference. Is there a simple way for me to check what suspension I have ie go measure under bumper and it should be x inches high off the ground kinda thing?
Any ideas?
__________________

2005 Z4 3.0 steptronic | TiSilver on Black | sport & premium package | 108s | Msport seats | wind deflector
OMP strut bar | blacked out emblems | de-french-fried | sound gen | DIY aux input | custom speedo logos | stubby antenna | polished exhaust tips
3point0 is offline   Canada
0
Reply With Quote
      05-29-2013, 04:25 AM   #176
007MCoupe
Major
 
007MCoupe's Avatar
 
Drives: on the wrong side of the road
Join Date: Jun 2010
Location: Livin' life

Posts: 1,461
iTrader: (4)

Garage List
2007 Z4 M Coupe  [0.00]
I'll be getting new wheels in the near future and I came across this site in my searches:

http://www.tuneruniversity.com/blog/...n-performance/

Read through parts 1 and 2 as well, but part 3 relates to width specifically. There's also a calculator he provides here that you can type in wheel and tire sizes you're thinking about and see if they'll fit.

Don't know if anyone else has ran across this site, but it's super good info!
__________________
GoMiniGo///VB3///75mm wheel studs///Stubby///Aero bumper///GC front ARB///Pin pulled & Turner Camber Shims///Superflex FCAB///Powerflex RTAB///RE shock mounts///ECS 2-pc front rotors///Akebono pads///CSL headers///DKF catless Section 1///AKG Engine & Trans Mounts///SS brake lines///RPI scoop
007MCoupe is offline  
0
Reply With Quote
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump


All times are GMT -5. The time now is 10:28 AM.




zpost
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST