20's in back, 19's in front...why? - Mustang Evolution

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Old 02-10-2015, 01:00 AM   #1
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20's in back, 19's in front...why?

So I have searched and didn't find much, both here and in general, so if it's been covered, I apologize. Basically, is there a performance advantage to doing a 1 inch larger diameter wheel in back? Only thing I can think of is thinner sidewall. I have to think there is a performance advantage, as cars like the GT500, Z06, Viper, and many Ferraris use the setup...
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Old 03-03-2015, 12:06 AM   #2
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looks bad ***
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Old 03-04-2015, 08:27 PM   #3
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I've been wondering about the same thing. I'm trying to decide between 19", 19" staggered, and a 19/20" setup. Mostly for looks, unless I get all crazy, and bolt a supercharger on my '10 V6.
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Old 03-04-2015, 09:13 PM   #4
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Originally Posted by Tuzban View Post
I've been wondering about the same thing. I'm trying to decide between 19", 19" staggered, and a 19/20" setup. Mostly for looks, unless I get all crazy, and bolt a supercharger on my '10 V6.
That's kind of what I'm between. The roads up here in CT suck so I'm worried about 20's all around.
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Old 03-05-2015, 08:33 AM   #5
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Same here in MA. I'm thinking of retiring it as a summer/fun car only, so it's time to get bigger wheels.

I'll let you know if I find any info. There must be someone running 19/20's.
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Old 03-05-2015, 08:47 AM   #6
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Originally Posted by DeJoe8 View Post
So I have searched and didn't find much, both here and in general, so if it's been covered, I apologize. Basically, is there a performance advantage to doing a 1 inch larger diameter wheel in back? Only thing I can think of is thinner sidewall. I have to think there is a performance advantage, as cars like the GT500, Z06, Viper, and many Ferraris use the setup...
Hey DeJoe8,

That's a good question and no apologies necessary (I took a quick look and couldn't find anything anyhow!) There's a couple perspectives on this:

1. Running a staggered setup will look better as you're going to have a considerable larger rear wheel and tire. It's just that much more mean looking! The only down side in my opinion is that when it comes time to rotate the wheels and tires they can't really go up front! So you'll run into that and when you're inevitably going to replace the rear tires they're going to be a little more than your 19's would be.

2. From a performance perspective it's a no brainer; wider rear wheel and tire = better traction and handling.

Let me know if you have any other questions at all about Wheel and Tire setups and I'm here to help out and if you don't have our forums discount code shoot me a PM and I'll get you setup!

Alex
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Old 03-05-2015, 09:00 AM   #7
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Originally Posted by AMAlexLazarus View Post
Hey DeJoe8,

That's a good question and no apologies necessary (I took a quick look and couldn't find anything anyhow!) There's a couple perspectives on this:

1. Running a staggered setup will look better as you're going to have a considerable larger rear wheel and tire. It's just that much more mean looking! The only down side in my opinion is that when it comes time to rotate the wheels and tires they can't really go up front! So you'll run into that and when you're inevitably going to replace the rear tires they're going to be a little more than your 19's would be.

2. From a performance perspective it's a no brainer; wider rear wheel and tire = better traction and handling.

Let me know if you have any other questions at all about Wheel and Tire setups and I'm here to help out and if you don't have our forums discount code shoot me a PM and I'll get you setup!

Alex
Thanks for the reply. I understand the staggered setup, I'm doing that regardless, I'm just torn between staggered what size to do the stagger with. I don't track my car, and it's only a nice weather car, so 20's look nice, 19's give me more rubber for crappy roads. Maybe 19's in the front would give me a split second extra to slow down to not ruin the 20's in the back lol. I'm just wondering if there's a difference between a staggered setup of the same size, and the 1 inch difference.
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Old 03-05-2015, 09:25 AM   #8
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Quote:
Originally Posted by AMAlexLazarus View Post
Hey DeJoe8,

That's a good question and no apologies necessary (I took a quick look and couldn't find anything anyhow!) There's a couple perspectives on this:

1. Running a staggered setup will look better as you're going to have a considerable larger rear wheel and tire. It's just that much more mean looking! The only down side in my opinion is that when it comes time to rotate the wheels and tires they can't really go up front! So you'll run into that and when you're inevitably going to replace the rear tires they're going to be a little more than your 19's would be.

2. From a performance perspective it's a no brainer; wider rear wheel and tire = better traction and handling.

Let me know if you have any other questions at all about Wheel and Tire setups and I'm here to help out and if you don't have our forums discount code shoot me a PM and I'll get you setup!

Alex
I think looks is the main reason why most companies do different diameter sizes but do the wheel width for performance. Your point 2 is correct for a wider rim but not necessarily a larger diameter rim. Generally bigger rims are heavier. So from a performance standpoint if you have 19x10's in the back with 19x8's in the front that will offer better performance then if you have 20x10's in the back with 19x8's as you have the same width tire but it would be smaller/ lighter.

And they make 20 inch rims in 8 inch width which wont offer any benefits (aside from looks) over a 17x 8 rim. And if it weighs more it will hurt performance. I just mention this because in the OP's original post he seemed to focus on the rim diameter opposed to the width of the rim. He suggests a thinner sidewall increases performance and I just don't see any benefit to a thinner sidewall all other things being equal as if you compare the same type of rims the larger diameter will be heavier.
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Old 03-06-2015, 01:34 AM   #9
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Originally Posted by DeJoe8 View Post
Thanks for the reply. I understand the staggered setup, I'm doing that regardless, I'm just torn between staggered what size to do the stagger with. I don't track my car, and it's only a nice weather car, so 20's look nice, 19's give me more rubber for crappy roads. Maybe 19's in the front would give me a split second extra to slow down to not ruin the 20's in the back lol. I'm just wondering if there's a difference between a staggered setup of the same size, and the 1 inch difference.
Wheel size has nothing to do with how much rubber you have on the ground. That all depends on the tire size. You can fit same with tire on say a 19x9 as a 20x9.

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Old 03-06-2015, 03:28 AM   #10
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Wheel size has nothing to do with how much rubber you have on the ground. That all depends on the tire size. You can fit same with tire on say a 19x9 as a 20x9.

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I'm not talking about rubber to the ground, I'm talking about the series of tire and keeping the outside diameter the same. Yes, it could be changed with a tuner, but wanna keep it close to stock. The GT500 has 40 series tires on the front and 35 series tires on the rear to keep outside diameter similar.
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Old 03-20-2015, 09:20 AM   #11
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Twenties all around.Click image for larger version

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Old 04-21-2015, 08:06 AM   #12
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Nice grabber blue. Like the matte black stripes.


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Old 04-21-2015, 11:10 AM   #13
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Nice grabber blue. Like the matte black stripes.





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