IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

2011-13 IS 18x8.5 F-Sport Wheels Front Clearance?

Thread Tools
 
Search this Thread
 
Old 10-02-18, 12:51 PM
  #1  
Jeff Lange
Keeping it Real
Thread Starter
iTrader: (1)
 
Jeff Lange's Avatar
 
Join Date: Apr 2009
Location: California
Posts: 5,024
Received 588 Likes on 397 Posts
Default 2011-13 IS 18x8.5 F-Sport Wheels Front Clearance?

Looking at picking up a set of 4 of the rear wheels from a 2011-13 F-Sport and was hoping they would clear the front calipers on the IS350.

Has anyone tried this?



Jeff
Old 10-02-18, 05:14 PM
  #2  
bbaugher47
Moderator
 
bbaugher47's Avatar
 
Join Date: Aug 2014
Location: RVA
Posts: 1,912
Received 224 Likes on 195 Posts
Default

I wish I knew the answer but I hope someone can help. For all the help and information that you have shared with us all you’re definitely owed one!
Old 10-02-18, 05:24 PM
  #3  
bbaugher47
Moderator
 
bbaugher47's Avatar
 
Join Date: Aug 2014
Location: RVA
Posts: 1,912
Received 224 Likes on 195 Posts
Default

Some info for the wheel guys : specs apear to be : 50MM offset , 8.5 wide ,
Old 10-02-18, 06:10 PM
  #4  
Jeff Lange
Keeping it Real
Thread Starter
iTrader: (1)
 
Jeff Lange's Avatar
 
Join Date: Apr 2009
Location: California
Posts: 5,024
Received 588 Likes on 397 Posts
Default

Those specs are correct. Fronts are 8" +45mm.

I'll do 18x8 all around if the 8.5's won't clear the brakes, but I'm hoping someone has tried it and can let me know.

Jeff
Old 10-02-18, 06:23 PM
  #5  
metaleckz
Racer
iTrader: (9)
 
metaleckz's Avatar
 
Join Date: Aug 2013
Location: CA
Posts: 1,834
Received 32 Likes on 29 Posts
Default

Originally Posted by Jeff Lange
Those specs are correct. Fronts are 8" +45mm.

I'll do 18x8 all around if the 8.5's won't clear the brakes, but I'm hoping someone has tried it and can let me know.

Jeff

just get spacers! Lol
Old 10-02-18, 07:00 PM
  #6  
Mike_1GO
Lead Lap
iTrader: (2)
 
Mike_1GO's Avatar
 
Join Date: Sep 2011
Location: NY
Posts: 632
Received 22 Likes on 21 Posts
Default

i running '14+ square setup and they clear just fine.
The following users liked this post:
bbaugher47 (10-03-18)
Old 10-02-18, 07:10 PM
  #7  
2013FSport
Lexus Test Driver
iTrader: (2)
 
2013FSport's Avatar
 
Join Date: Aug 2017
Location: OR
Posts: 6,449
Received 1,492 Likes on 1,242 Posts
Question

If you can wait until the weekend I can find out. I have those wheels and that car!

OEM F-Sport Split 5 Spoke details:
Pattern = 5 X 144.3mm
Front - 8.0 X 18" w/45mm offset factory 225/40R18
Rear - 8.5 X 18" w/50mm offset factory 255/40R18
Hub Bore 60.1mm



Last edited by 2013FSport; 10-02-18 at 07:17 PM.
Old 10-03-18, 03:03 PM
  #8  
Jeff Lange
Keeping it Real
Thread Starter
iTrader: (1)
 
Jeff Lange's Avatar
 
Join Date: Apr 2009
Location: California
Posts: 5,024
Received 588 Likes on 397 Posts
Default

I can wait! Would love to get a definitive answer for those specific wheels.

Really appreciate the help.

Jeff
Old 10-03-18, 07:08 PM
  #9  
2013FSport
Lexus Test Driver
iTrader: (2)
 
2013FSport's Avatar
 
Join Date: Aug 2017
Location: OR
Posts: 6,449
Received 1,492 Likes on 1,242 Posts
Default

I'm curious too as it's tempting to go square tho I wish they supported 275.

Needless to say I'll give a shout out to the BF Goodrich G-Force Comp 2 A/S....

They scare me as they hang on at rates that make me pucker and the fear is once they break, we go curb side or worse....
Where is that skid pad when you need it!!?
Old 10-04-18, 02:16 PM
  #10  
2grfan
Driver
 
2grfan's Avatar
 
Join Date: Mar 2017
Location: Nc
Posts: 115
Received 11 Likes on 11 Posts
Default

I fit a 17x8 et 48 on all four corners so I would imagine 8.5 et50s would fit.

Its funny you want a square setup, as do I, but I don’t think 245s in the rear have enough grip for performance driving.
Old 10-04-18, 04:49 PM
  #11  
Jeff Lange
Keeping it Real
Thread Starter
iTrader: (1)
 
Jeff Lange's Avatar
 
Join Date: Apr 2009
Location: California
Posts: 5,024
Received 588 Likes on 397 Posts
Default

I understand that by the specs, they should fit, they probably will fit.

I appreciate the help from people offering it, but I know how wheel fitment works, really I do. Unless you are talking about the exact wheels I want to try, it's not helping me, lol. There is more to a wheel clearing brakes than just width and offset. Spoke shape plays a big factor and is unique to each type of wheel.

While I have run 245's in the rear for years, I always run Dunlop ZI's, ZII's, Potenza RE11a's, etc. Currently on RE71R's. So it's usually a stickier compound. Never really had any issues with grip. Typically run 205's in the winter, but I will be on 225/45R17 Nokian R3's this year. Only had them on for a day so far, and they feel a bit loosey goosey. We'll see how they perform when the snow hits.

Jeff
Old 10-04-18, 05:39 PM
  #12  
2013FSport
Lexus Test Driver
iTrader: (2)
 
2013FSport's Avatar
 
Join Date: Aug 2017
Location: OR
Posts: 6,449
Received 1,492 Likes on 1,242 Posts
Default

Lets not forget bearing loading and impact on scrub in turns....

Just a FYI stock F-Sport split 5 spoke 8" fronts have 5mm of clearance on the 4 pot 350 caliper.

The following users liked this post:
Jeff Lange (10-04-18)
Old 10-06-18, 05:45 PM
  #13  
2013FSport
Lexus Test Driver
iTrader: (2)
 
2013FSport's Avatar
 
Join Date: Aug 2017
Location: OR
Posts: 6,449
Received 1,492 Likes on 1,242 Posts
Exclamation No!!! Not without a spacer!

And the verdict is a No Go without a wheel spacer as the spokes hit the caliper!
Bare minimum is 7.00 mm creates an air gap but 11 to 12mm would be be closer to stock. This isn't exact as I threw in paint stir sticks and snugged two nuts!

The 8" fronts fit the rear NP.

Bottom line - F-Sport split 5 spoke 8.5" w/50mm offset is a no go on the front of the IS-350.
Old 10-06-18, 07:14 PM
  #14  
ldc
Lexus Test Driver
 
ldc's Avatar
 
Join Date: Jan 2007
Location: 80808
Posts: 972
Likes: 0
Received 20 Likes on 20 Posts
Default

225/40/18 and 255/40/18 maybe oem oem spec but i dont like it. Front is too small and narrow for my liking. I'm looking to fit 245/40s or 255/35s all round.
Old 10-07-18, 10:53 AM
  #15  
2013FSport
Lexus Test Driver
iTrader: (2)
 
2013FSport's Avatar
 
Join Date: Aug 2017
Location: OR
Posts: 6,449
Received 1,492 Likes on 1,242 Posts
Default

Forgot to mention that the tire also had contact with the spindle near upper ball joint. Notice the clean spot here...


With 6mm of spacer we get this... Tire has little wiggle room to shift off center and not contact spindle.
Rear tire is 255/40 BF Goodrich G-Force Comp 2 A/S


Quick Reply: 2011-13 IS 18x8.5 F-Sport Wheels Front Clearance?



All times are GMT -7. The time now is 06:41 PM.