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Old 02-27-2014, 12:30 PM   #1
JKane
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Time to Prep for AutoX - Input Welcome

Last year was the first year with the car out on the AutoX course. I drive a 03 SVT with a Powerworks S/C.

I want to find a designated AutoX wheel/tire setup. I'm thinking on going down to a 16" wheel and running a tire like the R1r.

Should I stick with a 17"? Also, what is a great tire with Tread Wear above 139?

After the tires are figured out I want to get:

-Caster/Camber Plates. Any recommendations?

- LSD- Most likely Torsen for the price savings from the Qualife. If I get this done I'm planning on throwing in new races and such. Anyone know what the shop time would be for an install of an LSD?

- Possibly some stiffer springs.

There is more, I am just forgetting.

Thanks for all input!


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Old 02-27-2014, 01:19 PM   #2
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Not sure what other mods you currently have, but the supercharger puts you into at least SMF. I'm assuming by your 140+ treadwear requirement that you're planning to run a street-tire indexed class, right? If not, you should be looking at R-Compound tires, such as the Hoosier A6, Kumho V710, Hankook Z214, etc. Really depends what class you want to run and how competitive you want to be.
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Old 02-27-2014, 01:25 PM   #3
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It is a private club held AutoX event. The classes are nothing like SCCA. They are based on experience, but if you have a tire <139 you are in an Race class and >139 you are in a street class correct.

The people in the Experienced-Race class are in corvettes and cars I would not be competitive with. I tend to race in the Experienced-Street class so that I can be competitive.
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Old 02-27-2014, 01:27 PM   #4
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It is a private club held AutoX event. The classes are nothing like SCCA. They are based on experience, but if you have a tire <139 you are in an Race class and >139 you are in a street class correct.

The people in the Experienced-Race class are in corvettes and cars I would not be competitive with. I tend to race in the Experienced-Street class so that I can be competitive.
Are there any size restrictions on wheels or tires?
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Old 02-27-2014, 01:31 PM   #5
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Are there any size restrictions on wheels or tires?
Nothing. You choose where you want to race. Novice, Intermediate, Experienced-Street, or Experienced-Race. If your TW is below 140 you are put in the Experienced-Race Class.
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Old 02-27-2014, 01:44 PM   #6
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Nothing. You choose where you want to race. Novice, Intermediate, Experienced-Street, or Experienced-Race. If your TW is below 140 you are put in the Experienced-Race Class.
If it were me, my number 1 pick would be this:

235/40ZR17 Toyo Proxes R1R tires, mounted on:
17x9 lightweight wheels with as much backspacing as you can fit.

Assuming your car weight is somewhere in the 2600-2800 pound range, and that you can make them fit, that should be the best possible set-up for you.

One thing to consider in regards to fitment: More adjustability is better. If you can adjust ride-height and camber, your chances of making them fit are much better.
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Old 02-27-2014, 02:37 PM   #7
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So you would go with that wide of a rim huh? Also, in terms of camber, what do you find the best C/C Plates are?
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Old 02-27-2014, 02:53 PM   #8
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So you would go with that wide of a rim huh? Also, in terms of camber, what do you find the best C/C Plates are?
If I wanted the BEST set-up for that application, then yes, I would go that wide. A 17x8.5 would probably work just as well, but I wouldn't go any narrower than a 17x8 with that tire. R1R's like a little stretch.

If you're willing to compromise a little, a good option that will be almost as fast would be a 225/45ZR16 Dunlop ZII on 16x8 wheels.

I think K-Mac and LCR both look like good options, but are relatively expensive. The reviews for the SPC's aren't very good, but they're cheap and better than nothing. For my car, I'm waiting for Ground Control to release their Mazda3 camber plate. I think I might be able to modify it to work on the Focus.
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Old 02-28-2014, 03:13 PM   #9
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Do you happen to know of a wheel that is 17x9 or 8.5 that has appropriate backspacing to fit on a SVT. I haven't even found a wheel, without looking into 2-piece wheels.

Yeah, that's the thing, those CC plates just seem ridiculous to pay that much. But, I do need something and don't want to sacrifice quality.
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Old 02-28-2014, 03:36 PM   #10
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Do you happen to know of a wheel that is 17x9 or 8.5 that has appropriate backspacing to fit on a SVT. I haven't even found a wheel, without looking into 2-piece wheels.
Just did a quick search. Something like these might work: http://esmwheels.com/access/esm-004-sl-17-p-103.html

I think 6" backspace should be about right. So +25 offset on a 9" wide wheel. There's a chance you could fit a wheel with more backspace, but you might end up having to use a small spacer.

Again, I'm not sure what clearance will be like. Maybe search on this site to see if others have fit 17x9's.
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