SVT wheels and tires from GT500 - Ford Mustang Forum
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post #1 of 19 (permalink) Old 01-19-2011 Thread Starter
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SVT wheels and tires from GT500

I read that the SVT performance package made a big difference in the handling of the GT 500 for 2011. Here is a discussion on why it is so helpful. They also lowered the car and increased the stiffness of the suspension, which I did as well to my Mustang GT:

The new 2011 Ford Shelby GT500 has a surprise in store for true performance enthusiasts – an optional SVT Performance Package. One lap around the racetrack, and drivers will feel the difference.
Data show the 2011 coupe with the SVT Performance Package is 3.0 seconds faster per lap than the 2010 Shelby GT500 on a 2.3-mile test track. Cars with the optional package will be able to pull 1.0 lateral g, with stopping distances improved by 7 percent versus the base 2011 Shelby.
“More and more enthusiasts are putting their cars on the track to have some fun,” said Carroll Shelby, founder of Shelby American. “It’s a great way to enjoy the performance of your car in a safe environment. No one likes to run at the back of the field, so a track-oriented package is a smart option for the serious Shelby GT500 owner.”

Tires make the difference
The SVT Performance Package features the first application of the all-new Goodyear Eagle F1 SuperCar G: 2, a tire that offers superb dry traction and precise handling, complete with a high-performance tread compound with more grip. SVT engineers worked directly with Goodyear to develop the new compound, and it’s only available on the 2011 Shelby GT500. The tire is unidirectional, corner-specific – meaning the directional tread must match its specific location.
“We wanted to couple the improved weight distribution and the improved handling of the vehicle with the new tire, and with that offer the customer one of the most advanced summer tires from a manufacturer,” said Jamal Hameedi, SVT chief nameplate engineer. “That led us down a road to the new tire. It’s instantly recognizable with an all-new tread pattern and construction.”
The new ultra-high-performance compound is made of a proprietary blend of race-derived carbon black and high-stiffness polymers and resins that help deliver enhanced wet and dry handling performance on both the road and track. Asymmetrical, directional tread designs with massive tread blocks on the outboard side of the tire help enhance dry cornering grip. Sweeping Aquachannel™ grooves on the inboard side of the tread help move water. An innovative multi-radius mold shape offers precise handling and smooth, even wear.
“These tires are as close as you can get to a race car tire,” said Eric Zinkosky, SVT technical specialist. “We have a tire that’s way more capable, with better grip, is firmer and more race-oriented. From there, we tuned the chassis around it. The tires told us what we had to do.
“We took some lessons from the Shelby KR program and applied them to these tires,” he added. “That was our first attempt at a similar compound, and we learned a lot and rolled those lessons into the new Shelby to provide an even better tire.”
Nineteen-inch forged-aluminum wheels in the front, which are 4.7 pounds lighter than the base Shelby GT500’s, complement the all-new wider 265/40R-19 front tires. New 20-inch forged-aluminum wheels at the rear are 2.8 pounds lighter than the standard 19-inch wheel, and the new 3.73 rear axle ratio takes advantage of the new larger rear wheels and tires.


2011 Candy Apple red Mustang Premium GT, auto, Baer brakes, lowered, SVT Shelby Wheels 19" front and 20" rear with Goodyear F1 tires.
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post #2 of 19 (permalink) Old 01-19-2011
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Quote:
Originally Posted by 2011candyredGT View Post
I read that the SVT performance package made a big difference in the handling of the GT 500 for 2011. Here is a discussion on why it is so helpful. They also lowered the car and increased the stiffness of the suspension, which I did as well to my Mustang GT:
Yeah, well your quote only attributes the diff. to tires. I'd certainly HOPE a 2011 GT500 would be faster than a 2010 - tires or not!

The trade-off with tires like the Eagle Supercar, if you use them as a DD, is of course tire LIFE. I'll bet a GT500 won't get more than 10,000 miles (if that) on the rears.

Oh, and the BIG downside of a fully unidirectional, diff. f/r size setup like this: you can NOT rotate tires for longer life!!!

Better have a $$$ tire budget going this route...

IMHO a better option for most is a dedicate set of track wheels+tires, with something more reasonable for DD. The P-Zero (Brembo GT) are a fairly good DD compromise (if you live where it doesn't snow!) - still pretty short life though. At least you can rotate f/r with 255's all around.

If you're into 1/4 mile, I'd bet Nitto NT05 would be cheaper and better. For Auto-X (depending upon class) a set of R compound tires will kick some Eagle behind. On the RR track, same thing.


2011 GT Kona Blue with 401A Black+Cashmire - HID, Security, Brembo, 3.55, Comfort, Rear Camera, and Glass Roof.
Mods: Steeda Sport Springs and HD mount (2011+ style), Koni "Yellows", UMI roto-joint adj. PHB - oh, and one big scratch in a BBP wheel!
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post #3 of 19 (permalink) Old 01-19-2011
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so....they kept the live axle?

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post #4 of 19 (permalink) Old 01-19-2011
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the gt500's tire problem is not compound related; it is width.

550hp and 285 width = traction issues even if your tread compound is as soft and sticky as a magic eraser.

camaro z28 will have 330's in the rear..looks like chevy understands that tire width improves traction...hell, the base 400 hp mustang gt has 235's I really hope ford learns

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post #5 of 19 (permalink) Old 01-19-2011
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the gt500's tire problem is not compound related; it is width.

550hp and 285 width = traction issues even if your tread compound is as soft and sticky as a magic eraser.
Maybe?!? Have you ever tried running real R compound tires. Trust me, compound makes a HUGE difference - more than just going "wider". Going from a TW 220 to a TW 60 compound is gonna get you WAY more traction than going from 255 to 295.

BUT... You do need to get 'em heated up first. That said, I'd love to go with the SVT setup on the GT (really SHOULD have 295 rears at least). Then I looked at the $$$ - can't rotate tires, more expensive tires+wheels (and a LOT heavier). There is a down side to going bigger. Kinda PO'd though that stinkin' BMW 3 series have bigger rears than we do!

2011 GT Kona Blue with 401A Black+Cashmire - HID, Security, Brembo, 3.55, Comfort, Rear Camera, and Glass Roof.
Mods: Steeda Sport Springs and HD mount (2011+ style), Koni "Yellows", UMI roto-joint adj. PHB - oh, and one big scratch in a BBP wheel!
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post #6 of 19 (permalink) Old 01-19-2011
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ha! just realized everyone posting in here is from california.

awesome

icckart, i agree with you but the OEM tires on the GT500 are NOT r-compound, so what is their excuse now? they put some decent/ok max performance summer tires that are still too narrow for that kind of power. find me another sports car with over 500hp with tires as narrow as the gt500's...there is a reason these cars have super wide tires (and it isn't just for looks)

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post #7 of 19 (permalink) Old 01-19-2011
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Yep I guess I'll jump in the Califest I really like those 2011 trackpack wheels and was just about to pull the trigger on a set.

I then decided to go with the black trackpack wheels 19x9 all the way around with 245/45-19 Continental extreme contact DW tires

let me tell you guys along with my Koni STR.T's and UPR UCA and LCA
Maximum motorsports adj panhard bar and caster camber plates

I have transformed my car into a new animal.There is no comparison to my old stock suspension tires/wheels etc.I had bad wheel hop at the track and no traction at all with the allseason 18's

now with everything dialed in by a professional including pinion angle
I can launch with no hop and I hit the canyons yesterday and this baby drives like a slot car.

We all have to get togeather and go for a nice drive
[/IMG]

2011 Performance white base GT 6MT 3.73 gears(sold)
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post #8 of 19 (permalink) Old 01-19-2011
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^ slots are fun

car looks good

Ford Racing K-springs & dampeners. UPR Street adjustable UCA. UMI LCA & bolt in relocation brackets. Comp Eng. panhard.
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post #9 of 19 (permalink) Old 01-19-2011
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Boy those SVT trackpack wheels look good you are only the second person I've seen with these wheels on a 2011 GT

I know they cost a pretty penny but to me I think they are worth it.I like the staggered set up and I bet you are just like me when it comes to replica wheels lol

2011 Performance white base GT 6MT 3.73 gears(sold)
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Quote:
Originally Posted by zilla8 View Post
Yep I guess I'll jump in the Califest I really like those 2011 trackpack wheels and was just about to pull the trigger on a set.

I then decided to go with the black trackpack wheels 19x9 all the way around with 245/45-19 Continental extreme contact DW tires

let me tell you guys along with my Koni STR.T's and UPR UCA and LCA
Maximum motorsports adj panhard bar and caster camber plates

I have transformed my car into a new animal.There is no comparison to my old stock suspension tires/wheels etc.I had bad wheel hop at the track and no traction at all with the allseason 18's

now with everything dialed in by a professional including pinion angle
I can launch with no hop and I hit the canyons yesterday and this baby drives like a slot car.

We all have to get togeather and go for a nice drive
[/IMG]
i really like the black wheels on white, looks great. let me know how you like those continental tires (based on tirerack they got insanely good reviews and the price is very reasonable)

let me know next time you guys decide to go for a pleasure cruise..the weather has been great. i wont be able to keep up with a lot of you guys though lol. financial situation is a little tight and i had to put car mods on hold and save some money so she is mostly stock (just axle backs)

2011 Mustang GT 5.0 Coupe/Brembos/3.73

"I'm also 6'5" and 270 lbs. and could crush a person's bones with my bare hands"
-Jozsefsz


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post #11 of 19 (permalink) Old 01-20-2011 Thread Starter
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I would have gone with 19 inches all around, but I got too good a deal on the take off set of SVT wheels and tires to pass on it. they were off the widebody GT500 that Galpin made with 13 inch rear wheels... Tires make a huge difference in the performance so I am accepting the idea of a new set each year. I use the car for work so it is tax deducible...

2011 Candy Apple red Mustang Premium GT, auto, Baer brakes, lowered, SVT Shelby Wheels 19" front and 20" rear with Goodyear F1 tires.
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Quote:
Originally Posted by zilla8 View Post
Yep I guess I'll jump in the Califest I really like those 2011 trackpack wheels and was just about to pull the trigger on a set.

I then decided to go with the black trackpack wheels 19x9 all the way around with 245/45-19 Continental extreme contact DW tires

let me tell you guys along with my Koni STR.T's and UPR UCA and LCA
Maximum motorsports adj panhard bar and caster camber plates

I have transformed my car into a new animal.There is no comparison to my old stock suspension tires/wheels etc.I had bad wheel hop at the track and no traction at all with the allseason 18's

now with everything dialed in by a professional including pinion angle
I can launch with no hop and I hit the canyons yesterday and this baby drives like a slot car.

We all have to get togeather and go for a nice drive
[/IMG]
I was checking out the UPR upper and lowers and they seem like a deal for $199 but I did not notice any grease zerks. The UMI units offered by Strano have them but they do not mention the bushing materials. I would assume the poly's used by UPR need some lubrication to keep the squeaking away? These also do not seem to be adjustable which I understand is needed to dial in pinion angle after a drop? Also, how was your pinion angle adjusted with your setup? Thanks
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Quote:
Originally Posted by zilla8 View Post
Yep I guess I'll jump in the Califest I really like those 2011 trackpack wheels and was just about to pull the trigger on a set.

I then decided to go with the black trackpack wheels 19x9 all the way around with 245/45-19 Continental extreme contact DW tires

let me tell you guys along with my Koni STR.T's and UPR UCA and LCA
Maximum motorsports adj panhard bar and caster camber plates

I have transformed my car into a new animal.There is no comparison to my old stock suspension tires/wheels etc.I had bad wheel hop at the track and no traction at all with the allseason 18's

now with everything dialed in by a professional including pinion angle
I can launch with no hop and I hit the canyons yesterday and this baby drives like a slot car.

We all have to get togeather and go for a nice drive
Yeah, and we're not complaining about finding "winter" tires to fit over Brembos like those poor souls back East.

Why did you go with only 245s? Those "black trackpack" wheels are just the FRPP black version of the Brembo wheels aren't they? Well, just a WHOLE lot cheaper at only $300 each.

I'm going to do the MM CC plates and Strano bars (f/r) first. With the Brembo pack we get diff. LCAs anyway (somewhat like the GT500 version - not exactly the same though). Also stiffer springs and diff. damping. Strano says Brembo cars are still "under-damped" for the stiffer springs though.

I'm pretty happy with the P-Zeros (saw them on a nice Ferrari in the racing alignment shop - if they're good enough for Ferrari...). Probably about as good as you're gonna get without going to R compound - with 220 TW (looks like the Contis are 360 so you should get better wear life).

2011 GT Kona Blue with 401A Black+Cashmire - HID, Security, Brembo, 3.55, Comfort, Rear Camera, and Glass Roof.
Mods: Steeda Sport Springs and HD mount (2011+ style), Koni "Yellows", UMI roto-joint adj. PHB - oh, and one big scratch in a BBP wheel!
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Quote:
Originally Posted by zilla8 View Post
Yep I guess I'll jump in the Califest I really like those 2011 trackpack wheels and was just about to pull the trigger on a set.

I then decided to go with the black trackpack wheels 19x9 all the way around with 245/45-19 Continental extreme contact DW tires

let me tell you guys along with my Koni STR.T's and UPR UCA and LCA
Maximum motorsports adj panhard bar and caster camber plates

I have transformed my car into a new animal.There is no comparison to my old stock suspension tires/wheels etc.I had bad wheel hop at the track and no traction at all with the allseason 18's

now with everything dialed in by a professional including pinion angle
I can launch with no hop and I hit the canyons yesterday and this baby drives like a slot car.

We all have to get togeather and go for a nice drive
Yeah, and we're not complaining about finding "winter" tires to fit over Brembos like those poor souls back East.

Why did you go with only 245s? Those "black trackpack" wheels are just the FRPP black version of the Brembo wheels aren't they? Well, just a WHOLE lot cheaper at only $300 each.

I'm going to do the MM CC plates and Strano bars (f/r) first. With the Brembo pack we get diff. LCAs anyway (somewhat like the GT500 version - not exactly the same though). Also stiffer springs and diff. damping. Strano says Brembo cars are still "under-damped" for the stiffer springs though.

I'm pretty happy with the P-Zeros (saw them on a nice Ferrari in the racing alignment shop - if they're good enough for Ferrari...). Probably about as good as you're gonna get without going to R compound - with 220 TW (looks like the Contis are 360 so you should get better wear life).

2011 GT Kona Blue with 401A Black+Cashmire - HID, Security, Brembo, 3.55, Comfort, Rear Camera, and Glass Roof.
Mods: Steeda Sport Springs and HD mount (2011+ style), Koni "Yellows", UMI roto-joint adj. PHB - oh, and one big scratch in a BBP wheel!
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Quote:
Originally Posted by SpeedKing-713 View Post
I was checking out the UPR upper and lowers and they seem like a deal for $199 but I did not notice any grease zerks. The UMI units offered by Strano have them but they do not mention the bushing materials. I would assume the poly's used by UPR need some lubrication to keep the squeaking away? These also do not seem to be adjustable which I understand is needed to dial in pinion angle after a drop? Also, how was your pinion angle adjusted with your setup? Thanks
I just picked up the UPR non-adjustable LCAs w/ poly bushings and they come with the bushings installed and greased so that should (don't have them installed yet as the car is put away for the winter) hold off the noise for a little while. I will say that I wouldn't mind having a grease fitting on them. I've seen the UMI LCAs on their website before and I'm pretty they refer to their bushings as "rotojoints" but what a "rotojoint" actually is . . . I've got no clue, haha. I'm pretty sure that J+M sells LCAs that have regular poly bushings (not installed) and a grease fitting.

In regards to pinion angle adjustment, only one type of control arm needs to be adjustable, either the upper or the lowers (most use the upper for simplicity). So as long as you get an adjustable UCA you can correct you pinon angle after lowering the car, and save $$ as non-adjustable LCAs are genrally cheaper than adjustables. I'd recommend a double-adjustable UCA b/c it allows you to make adjustments quickly and w/ everything fully installed (like if you wanted to tweak it at the track).


Jason

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