Widest tire on a 928 - Rennlist Discussion Forums

Log In 


928 Forum Sponsored by: 928 Specialists

Widest tire on a 928

Reply
 
Thread Tools Search this Thread
Old 01-02-2011, 11:24 AM   #1
Exotic_Car_Guy
User
Thread Starter
 
Exotic_Car_Guy's Avatar
 
Join Date: Apr 2009
Location: SF Bay Area California
Posts: 55
Question Widest tire on a 928

I bought a set of Porsche Carrera IV wheels with the following dimensions:

Front: 8 x 18 et 57
Rear: 10.5 x 18 et 60

What would be the right tires for my '85 928S? I'd like to go widest possible in the rear 10.5" wheel without rubbing (and closest to orig overall wheel/tire diameter).

Thanks,
Gil
Attached Images
 
Exotic_Car_Guy is offline   Reply With Quote
Old 01-02-2011, 11:29 AM   #2
123quattro
Super User
 
123quattro's Avatar
 
Join Date: Nov 2006
Location: Farmington Hills, MI
Posts: 2,962
Default

295/30. It will be a squeeze to get it in there.
123quattro is offline   Reply With Quote
Old 01-02-2011, 12:08 PM   #3
LostInSpace
Addict
Rennlist Member
 
LostInSpace's Avatar
 
Join Date: Oct 2007
Location: UK - Ex NZ
Posts: 201
Default

Very interested to see what these look like on the car.
LostInSpace is offline   Reply With Quote
Old 01-02-2011, 12:16 PM   #4
Exotic_Car_Guy
User
Thread Starter
 
Exotic_Car_Guy's Avatar
 
Join Date: Apr 2009
Location: SF Bay Area California
Posts: 55
Default

Quote:
Originally Posted by 123quattro View Post
295/30. It will be a squeeze to get it in there.
When you say a squeeze, will there be rubbing with suspension travel during driving (bumps, etc.)?

Gil
Exotic_Car_Guy is offline   Reply With Quote
Old 01-02-2011, 12:35 PM   #5
dprantl
Super User
 
dprantl's Avatar
 
Join Date: Dec 2003
Location: Atlanta, GA
Posts: 4,305
Default

They will probably fit, but you will need a ~5mm spacer with those 60mm offset rear wheels. Also, you may need to pull out the rear fenders just a little, but that is quite easy since they are steel.

Dan
'91 928GT S/C 475hp/460lb.ft
dprantl is offline   Reply With Quote
Old 01-02-2011, 12:59 PM   #6
tlsmith1999
Addict
Rennlist Member
 
tlsmith1999's Avatar
 
Join Date: Nov 2008
Location: Royse City, TX
Posts: 652
Default

285/30/18 with no spacers will fit nicely.
tlsmith1999 is offline   Reply With Quote
Old 01-02-2011, 01:07 PM   #7
SeanR
Running up the Odo'
Rennlist Member
 
SeanR's Avatar
 
Join Date: Apr 2006
Location: DFW Texas
Posts: 29,871
Default

There will also be a difference in width, depending on tire brand. My wheels had P-Zero's 295/30/18 on an 11.5 rim and rubbed like crazy. Put on my Kumhos of the same size, I now have 1/4 inch more room between the fenders/tire than I had previously. They my say they are the same size, but there are a lot of variations on side wall width.
SeanR is offline   Reply With Quote
Old 01-02-2011, 01:47 PM   #8
Gretch
Range Master
Snow Frog
Lifetime Rennlist
Member
 
Gretch's Avatar
 
Join Date: Apr 2002
Posts: 39,877
Default

Side to side suspension tolerances are NOT the same........ one side is always tighter than the other.......

I run 275x35x18s on the rear of my 89 GT and one side is definately closer to the fender than the other.
Gretch is offline   Reply With Quote
Old 01-02-2011, 01:56 PM   #9
Exotic_Car_Guy
User
Thread Starter
 
Exotic_Car_Guy's Avatar
 
Join Date: Apr 2009
Location: SF Bay Area California
Posts: 55
Default

Thanks guys for all your inputs.
Gil
Exotic_Car_Guy is offline   Reply With Quote
Old 01-02-2011, 05:11 PM   #10
Imo000
Super User
 
Imo000's Avatar
 
Join Date: Aug 2003
Location: Cambridge, Ontario, Canada
Posts: 18,793
Default

Quote:
Originally Posted by Gretch View Post
Sid to side suspension tolerances are NOT the same........ one side is always tighter than the other.......

I run 275x35x18s on the rear of my 89 GT and one side is definately closer to the fender than the other.
I've noticed the same thing too. I thogth it was probalby caused by an accident at some point in the car's life but, mabye it isn't.
Imo000 is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Early Offset Wheels dnwong 944 Turbo and Turbo-S Forum 1 05-08-2015 02:37 AM
Cayenne wheels bills928 928 Forum 9 12-07-2014 09:13 PM
Lazy brain Wheel Size Fitment RKD in OKC 928 Forum 9 02-09-2014 07:11 PM
largest tire size on 18x10 rim PJR1976 Wheel and Tire Forum 4 02-01-2014 02:46 PM
944 wheel fitment te37 kdfwagen 924/931/944/951/968 Forum 18 07-13-2011 03:37 PM


Tags
105, 928, 928s, biggest, porsch, porsche, put, rear, rennlist, rennlistforums, rim, size, tire, tires, widest

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -3. The time now is 07:29 AM.


Copyright ę 1998 - 2015 Rennlist.com