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2012 SVTPP Replacement Wheels/Tires - Home Stretch

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I'm at the final junction of my wheel /tire crossroads – andI'd appreciate any helpful advice or insight that may be available before committing.


I will be replacing the OE F-1 G: 2 tires with ContinentalExtremeContact DWS. My wheel choiceswill consist of either the 19" x 10" Ford Racing SVTPP look-alikes, the 20" OEwheels (widened to 10.5") or Forgestar F14s – whose spoke pattern is about asclose to the SVTPP wheels as exists (it's a 7/14-spoke pattern rather than 8/16)and comes in 19", 20" and 22" diameters in widths up to 12" milled to virtuallyany offset you like.


I intend to keep the OE F-1 G: 2's for tracking duringoptimal conditions. I've 4 basic reartire choices from the DWS family.


4 x 275/40-19 (on 19" x 10")

Pros: 4-way rotation, more front-end grip, OE diametercompatibility and ride comfort.


Cons:More front-end pull, more susceptible to hydroplaning andsmaller rear contact patch.


2 x 285/35-19 and 2 x 245/35-19 (on 19" x 10")

Pros: OE rear width, shorter rear diameter/quicker (makes the 3.73behave more like a 3.73), more nimble steering with less front-end pull and lesssusceptible to hydroplaning.


Cons: Stance lowered by ¾", visual difference (smaller tires tofill the fender.


2 x 315/35-20 and either 2 x 275/40-19 or 2 x 275/35-20 (on 20"x 10.5" Forgestar F14s or widened OE rear wheels and either 19" x 10" or 20" x 9.5" OE wheels)

Pros: Contact, contact and more contact. Completely fills the rear wheel arch without rubbing. Maximum footprint. Visual appeal (particularly on 20" wheelsall-around)


Cons: Cost (Up to $1,500 more), taller effective final driveratio, greater front-end pull, more susceptible to hydroplaning and car sitstaller (by ¾"). I'd almost consider a4.10 or 4.30 ring and pinion to offset it.


2 x 295/25-22 and either 2 x 245/30-22 or 2 x 275/35-20 (on 4 x 22" x 10.5" Forgestars)


Pros: Improved hookup and visual appeal, but this setup would beall about handling – perhaps even better than OE on the track.


Cons: MUCH harsher ride for daily driving, shorter sidewall maynegate rear width increase, requires aftermarket wheels with no OE center cap, mayeven buy a third set of wheels on 18" for comfort driving.


That's where I am at the moment. I'd really appreciate anybody's insight andthoughts as to:



  • Whether my presumptions and suspicions are accurate
  • Anything I may have overlooked
  • First-hand experience with all or part of any of theseoptions
  • Suggestions for improvement


It's probably important to know I intend to upgrade to theFord Racing Dynamic Damper kit – so I can have a bit of control over ridecomfort beyond sidewall height.


Thanks, in advance, to anybody with any helpful advice to share.

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I think you posted in the wrong section...but to answer your question as a GT500 owner as well, I just cant. You have a lot of options, and you will get all kinds of answers to that questions. You broke it down well, but ultimately it comes down to what YOU like. The GT500s do need some extra rubber at the rear though in my experience, and that car is built better for drag and cruising. I will note that I ended up rubbing the paint off my rear fenders edge because I went just a little too wide on my rear tires without having the right rims to keep the rubber inside the fender wells. (305s didnt quite work when I drove it on hilly roads or sharp turns)

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