Rotatable GT350 Square Wheel-Tire Setup

Discussion in 'Brakes, Wheels and Tires' started by VoodooBoss, Aug 27, 2016.

  1. bpracer

    bpracer Mark

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    If you use hub centric spacers you will be fine.

    Sent from my SAMSUNG-SM-G900A using Tapatalk
     
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  2. ToyKart

    ToyKart TMO Intermediate

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    Wtywly,

    Its all come down to your comfort level....There are quite a few of us use spacers on the track because the wheel/tire configurations we have chosen dictate us to use spacers and we are comfortable with it and have not run into any issues. When a spacer is properly engineered, fabricated and installed, there is no gaps between the spacers and the wheels or spacers to the hubs, then all the forces that holding the wheels on the car are transferred to the lug nuts and the studs. That is why you should torque your lugs before you go on track (*COLD not after you come in from the session when everything is HOT!).

    To answer your own question. If you dont use a spacer, will the new wheels you purchase work with the car? Are you happy to use the OEM setup or buy other wheels? Based on my personal research, I have yet to find a wheel that can fit both front and back without the need of a spacer for the front.

    One more critical point. You should replace the OEM studs from the hubs with longer studs so that you are mounting the wheels to the hub through the spacers instead of the spacers that have bolts on them which mount the spacers to the hubs and wheels to the spacers instead. That would not be an ideal configuration for spacers setup.

    I hope this helps.
     
  3. wtywlyshelby

    wtywlyshelby TMO Intermediate

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    Thank you for your detailed explanation! I haven't use any spacer in the past on track because my past vehicles run square setup from the factory and it is easy to find a set of rotatable wheels that have a square setup. That is why I want to make sure there are not any issues when using spacers on track. If I do not use spacers for my intended square setup, then I can change my wheel order to different offset. But the issue would be I have to dismount the tires whenever I need a rotation. Based on my past experience, I have to rotate tires before every track days. So if I do the setup without the spacers, then it is really a hassle for me in term of tire rotation.
     
  4. ToyKart

    ToyKart TMO Intermediate

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    That was one of the reason why setup with the square setup. I also learned something else. If your tires are NOT directional like the Michelin Super Sports (OEM) or the Cup 2 tires, you can rotate left and right after each track day/event if you like. By having the square setup, you can now rotate front to back as well as left and right. That should give all four of your tires a bit more even wear on each corner.
     
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  5. VoodooBoss

    VoodooBoss Rick Moderator

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    If done properly, meaning with race quality wheel studs like the ARP’s I posted a link to, there will be no issues. If you don’t want a rotatable setup then purchase specific offset wheels. With no disrespect to your friend wheels spacers have been used for decades. Many, 100’s?, of TMO members have used spacers with no issues. The photo below is a Ford Mustang factory race car using spacers.

    D5C775EF-0E6C-4AE9-8475-BDD5B1A69FBC.jpeg
     
  6. OPMustang Tim

    OPMustang Tim TMO Race

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    Bolted connections with the use of studs and fitted spacers is used throughout industry. When properly clamped they become one. The spacers register on the hub flange and the wheel register on the spacer flange, the studs pass through the hub, spacer and wheel and when properly torqued become one unit. If this type of bolted connection was unreliable wheels and wheel hubs would be an integrated component. Crankshafts would be machined with integrated flywheels and vibration dampers, cylinder heads would be cast one piece with the engine block, sky scrapers would not use steel beams bolted to concrete. A proper fitting spacer and wheel stud is fairly reliable.
     
  7. wtywlyshelby

    wtywlyshelby TMO Intermediate

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    Thank you for ur explanation. This gives me peace of mind tracking the car.
     
  8. wtywlyshelby

    wtywlyshelby TMO Intermediate

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    Wow, I never knew that. I thought race teams do not use spacers. Poor knowledge...
     
  9. 1Danapple8

    1Danapple8 TMO Intermediate

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    So I know this setup will work on a regukar GT with the wheels sticking out about 1\4 inch. I have seen that a 10.5 with a 23mm offset will clear the stock gt front end. I am wondering what a 23mm offset on the rear will do though. The wheels i am looking at are only avaliable in that offset.
     
  10. VoodooBoss

    VoodooBoss Rick Moderator

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    I don't think a 23mm offset is going to work on the rear. What wheels are you looking at?
     
  11. 1Danapple8

    1Danapple8 TMO Intermediate

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    I was looking at the konig amplitude wheels in a 19x10.5
     
  12. VoodooBoss

    VoodooBoss Rick Moderator

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  13. 1Danapple8

    1Danapple8 TMO Intermediate

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    Ive neen shopping around for a few different wheels. So far those are the pnly 10.5 i have found though. Everyone else is either 10 or 11
     
  14. mustang5o

    mustang5o TMO Intermediate

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    Considering a 2016 GT350 Track Pack that has the LMR GT350R replica wheels on it. They are +60 offset according to LMR https://lmr.com/item/SVE-177912H/sve-r350-wheel-black-19x11-15-18 . The car currently has them staggered but I thought I would buy two more 19x11's to run a square setup if the deal works out. What spacer would I need upfront for a +60 wheel or will it even work at all?
     
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  15. VoodooBoss

    VoodooBoss Rick Moderator

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    You might need as much as 30 mm and you're going to need some long wheel studs for those like the R wheel studs. I'm not sure how that's going to work. Maybe others know.
     
  16. Bill Pemberton

    Bill Pemberton TMO Addict

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    I would use those rims as your street set and just get a new set of Apex rims. I spent hours discussing this with LMR and got numerous answers, none of which later proved to be correct ( and I do like some of their products ) , so why not just get a correct set from Apex? Contact Cory and he will give you straight answers and they have actually done all the work to make sure you have a correct set-up. Keep in mind , the most important thing about their wheels is they have great distance between the caliper and the barrel, so little chance of clagg or rocks getting wedged in between. Sure you will spend more, but you would still have to get two rims at LMR, and I was told they would not work. You will need a one inch ( 25mm spacer up front), and just go to Apex's Forum Line and send a personal message to them -- request and answer from Cory. Best of luck.
     
  17. mustang5o

    mustang5o TMO Intermediate

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    I know I've seen the regular ones used on the GT cars in a 19x11 square setup. If I get a new car I'm likely going to run only street tires (RE71's?) so I'd like to have two sets that could go street or track and prefer they all be rotatable. Good to have extra set on a track weekend.
     
  18. Mad302

    Mad302 TMO Race

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    I considered getting a rotatable setup from Cory and we decided that a true R spec setup would be best for me. Honestly just tired of switching and rotating tires at this moment. Just prefer to arrive and drive. I will say that Apex has the best quality i've seen in a long time. It's up there with SSR when i got GT3's. I went with SM-10's and they are awesome and really compliment a white GT350.
     
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  19. TymeSlayer

    TymeSlayer Tramps like us, Baby we were born to run...

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    @Mad302 - I like those SM-10s and was curious how easy is it to clean them?
     
  20. Mad302

    Mad302 TMO Race

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    They are really easy to clean i just use a wheel brush on the barrels and a mit on the face. I made sure to coat them before i put them on so brake dust doesn't really stick to them.
     
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