Boig Motorsports

Visit our community sponsor

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 15 of 15

Thread: Which tire size?

  1. #1
    Senior Member
    Join Date
    Mar 2017
    Posts
    307
    Post Thanks / Like

    Which tire size?

    I want to know my options in regard to tire size for my MK4. Here is how Im building her. I went with the 2015 IRS rear, FFR’s 15” wheel with Gordon Levy’s brakes. I want to purchase Avon tires but not sure if the 295’s will work out back? I know Duke went with the 245’s and they look great, just wanted to see if the 295 would fit as I would like as much of a flush look as I can get. They also have the 275’s which are right in between. I’m going for the “Billboard” look and will be adding the lettering to my tires via paint stencil.

    Any thoughts?...... opinions? Photos of cars that have a similar setup?
    Last edited by stevant; 05-03-2018 at 11:22 AM.
    Build#1: MKIV Roadster #9320

  2. #2
    Senior Member Gordon Levy's Avatar
    Join Date
    Feb 2011
    Location
    Maricopa AZ
    Posts
    1,276
    Post Thanks / Like
    295/50 will work fine out back. I like running a 225/60 up front to match the rear height.
    99/2000 NASA PSO Champion-2005 west coast FFR challenge series Champions
    Sponsor Tony B's 2007 ST2 National Championship
    2009 NASA TTC runner up-2010 NASA TTB runner up

  3. #3
    Senior Member
    Join Date
    Mar 2017
    Posts
    307
    Post Thanks / Like
    Thanks Gordon........ brakes are working out great by the way!! Let me know when you’ll be sending out the parking brake setup. Thanks again for all your help.
    Build#1: MKIV Roadster #9320

  4. #4
    Senior Member
    Join Date
    Mar 2017
    Posts
    307
    Post Thanks / Like
    Hey Gordon....... the 295/50R15 has a height of 26.7, the 225/65R15 has the same 26.7. The 60 is only 25.7. I know you said matching height, looks like 65 matches not the 60?
    Build#1: MKIV Roadster #9320

  5. #5
    Senior Member Gordon Levy's Avatar
    Join Date
    Feb 2011
    Location
    Maricopa AZ
    Posts
    1,276
    Post Thanks / Like
    what I meant is I don't like to see the front tire taller than the rear. The 245/60 and the 235/60 both look taller than the 295/50
    99/2000 NASA PSO Champion-2005 west coast FFR challenge series Champions
    Sponsor Tony B's 2007 ST2 National Championship
    2009 NASA TTC runner up-2010 NASA TTB runner up

  6. #6
    mburger's Avatar
    Join Date
    May 2017
    Location
    Punta Gorda FL
    Posts
    1,146
    Post Thanks / Like
    I have an Mk1 and I’m running 295/50/15 on the rear with no issues. (Rubbing) Finding 275/50/15 was difficult.
    I’ve got the standard 8.8 solid axle.
    Mark
    Mk1, Frame #1929 Complete restoration/upgrade. BP 347 with Edelbrock PF4 439/420. 4 link with coilovers. 8.8 3.55, 15” Halibrand, New beefed up T5 w/short throw shifter, Power 4 wheel disc brakes, Custom original style steering wheel, shaft and boss, Heat/AC, Heated seats, PPW wipers w/washers, Forte’s throttle linkage, RT trunk hoop mod, Pusher cooling fans, full LED lighting, custom headrests, 5 point seat belts with sub pass through, Speedhut GPS gauges, battery drop box in trunk, LED courtesy lights, Breeze trunk cubby kit.

  7. #7
    Senior Member
    Join Date
    Mar 2017
    Posts
    307
    Post Thanks / Like
    Avon sells the 275/50/15...... might go that route to bring it in that extra inch. The 295 is about an inch wider than the 275.
    Build#1: MKIV Roadster #9320

  8. #8
    Senior Member cv2065's Avatar
    Join Date
    Dec 2017
    Location
    Orlando, FL
    Posts
    1,851
    Post Thanks / Like
    I'm going with the 2015 IRS as well, but know from the forum that the standard Mustang brakes won't work with the 15" wheels. Looks like the Gordon Levy brakes will. How are they different?

  9. #9

    Steve >> aka: GoDadGo
    GoDadGo's Avatar
    Join Date
    Feb 2015
    Location
    Slidell, Louisiana
    Posts
    6,572
    Post Thanks / Like
    Blog Entries
    1
    Quote Originally Posted by Gordon Levy View Post
    what I meant is I don't like to see the front tire taller than the rear. The 245/60 and the 235/60 both look taller than the 295/50

    Double Ditto On Sir Gordon's Comment!

    A Little Rake Always Looks Better!
    Last edited by GoDadGo; 05-03-2018 at 03:49 PM.

  10. #10
    Senior Member Gordon Levy's Avatar
    Join Date
    Feb 2011
    Location
    Maricopa AZ
    Posts
    1,276
    Post Thanks / Like
    My kit is a custom Wilwood 4 piston system we developed for the 2016 IRS. It's can be used with a hydraulic park brake or out custom designed pinion park brake.
    99/2000 NASA PSO Champion-2005 west coast FFR challenge series Champions
    Sponsor Tony B's 2007 ST2 National Championship
    2009 NASA TTC runner up-2010 NASA TTB runner up

  11. #11
    Senior Member Duke's Avatar
    Join Date
    Dec 2015
    Location
    Taxachusetts
    Posts
    401
    Post Thanks / Like
    Avon 225/60R15 & 245/60R15 for reference. Actually picking it back up tomorrow (pending weather). Currently getting ceramic Opti-coat on it.



  12. #12
    Senior Member
    Join Date
    Mar 2017
    Posts
    307
    Post Thanks / Like
    Hey Duke........I think I'm not going to deviate from perfection. Your setup is exactly the look I want.....SOLD!!!
    Build#1: MKIV Roadster #9320

  13. #13
    Senior Member CraigS's Avatar
    Join Date
    Feb 2011
    Location
    Blacksburg, Va
    Posts
    4,730
    Post Thanks / Like
    Why would you want to run less than the widest rear tire possible?
    FFR MkII, 408W, Tremec TKO 500, 2015 IRS, DA QA1s, Forte front bar, APE hardtop.

  14. #14
    Senior Member
    Join Date
    Mar 2017
    Posts
    307
    Post Thanks / Like
    Sometimes too wide is too much. It’s about appearance too. Some cars too wide a rear tire creates increased understeer. Not that I’ll be racing, but too me it’s about what looks good. Don’t get me wrong I like a fat back tire and 295’s do look good. But overall since I can’t keep switching I’ll go with what I think works for me. It might be a 275, but you have to admit.....Duke’s car sure sits pretty!
    Build#1: MKIV Roadster #9320

  15. #15
    Senior Member Gordon Levy's Avatar
    Join Date
    Feb 2011
    Location
    Maricopa AZ
    Posts
    1,276
    Post Thanks / Like
    Here is a link to a car we did with 225/60 front and a 295/50 rear on wire wheels.
    https://www.facebook.com/levyracing/...type=3&theater
    99/2000 NASA PSO Champion-2005 west coast FFR challenge series Champions
    Sponsor Tony B's 2007 ST2 National Championship
    2009 NASA TTC runner up-2010 NASA TTB runner up

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Stewart Transport

Visit our community sponsor