Why stagger 19"?

[terryrwood]

Ok somebody school me on the why of having staggered wheels on these cars? I've got (or had) two complete sets of the 19" PP wheels and was going to just run 19x9 all the way around. Didn't know if the 19x9.5 would fit on the fronts to do a set of those, now that I trashed one of my 19x9s.
Terry

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[Mike A.]

As much as I love the look of big fat tires on the rear I'm curious about this as well. With the car being a bit understeery on slower hard corning why go bigger in the back?

 

[CarlosMRRDesignWheels]

As much as I love the look of big fat tires on the rear I'm curious about this as well. With the car being a bit understeery on slower hard corning why go bigger in the back?

well is not necessarily going bigger, some people chose lets say a 19x9.5 or 19x10 rear because maybe a specific track tire is only available in those sizes,
also is no secret that having a wider rear tire will definitely increase your traction, is more of a performance then it is looks thats on a technical side,
I do though recommend staggered set up's for Mustang vehicles or just about any rear wheel drive car, unless your doing track where it will be best to do a square set up front and back.

 

[svtfever]

will a 19x9.5 fit on front?

 

[rcb020]

will a 19x9.5 fit on front?

19x10 will fit on front just fine with 40 offset, many people are running a 19x10 et40 front and back. This is a great option IMO as wheels can be easily rotated.

 

[terryrwood]

I am correct in assuming a PP GT with 19" wheels comes as:
(F) 19x9.0 255/40ZR19 96Y
(R) 19x9.5 275/40ZR19 101Y

Right?

 

[Need4SpeedMotors]

I am correct in assuming a PP GT with 19" wheels comes as:
(F) 19x9.0 255/40ZR19 96Y
(R) 19x9.5 275/40ZR19 101Y

Right?

yes you are correct another reason is wider contact patch on the rear for more traction.

 

[terryrwood]

Ok I'm more confused now, (19) the first number is the diameter and (9.5) is the width right?
Then how can 9.5 cause problems on the front but 9 & 10 are ok??

 

[Cloak]

Ok I'm more confused now, (19) the first number is the diameter and (9.5) is the width right?
Then how can 9.5 cause problems on the front but 9 & 10 are ok??

because of backspacing, and wheel face design.

 

[terryrwood]

So can I run 9.5 on front with spacers? Like the 10s?

 

[Cloak]

So can I run 9.5 on front with spacers? Like the 10s?

I believe the pp 9.5 wheels are like +55offset? youll need about an inch(25mm) spacer to run the pp rears on the front. take for example, the sve drift wheels are 19x9.5 with a +35 offset, and the mrr gf9 are 19x9.5 with +30 offset, and they fit nicely all around. BUT I have also seen a s550 running 19x9.5 with a +15 offset in the front, and they look good, but maybe hes running big camber?

 

[Norm Peterson]

So can I run 9.5 on front with spacers? Like the 10s?

What you really want to do is get wheels with the correct backspacing and backside-of-spokes shape. Spacers should not be part of the plan from the get-go.

Staggered setups are popular when straight line acceleration is the main consideration (all you care about is rear wheel traction), or when you're trying for that sort of look even if you aren't a drag racer.

Square setups handle and corner hard a whole lot better . . . and even drive a little nicer at a moderate daily-driver pace, once you know what to pay attention to.


Norm

 

[Cloak]

What you really want to do is get wheels with the correct backspacing and backside-of-spokes shape. Spacers should not be part of the plan from the get-go.

Staggered setups are popular when straight line acceleration is the main consideration (all you care about is rear wheel traction), or when you're trying for that sort of look even if you aren't a drag racer.

Square setups handle and corner hard a whole lot better . . . and even drive a little nicer at a moderate daily-driver pace, once you know what to pay attention to.


Norm

I agree. I would not keep the stock wheels with spacers - they are very heavy!! Get some lightweight 19x9.5 with the correct offset for the front, or square it up all around.

Also, a staggered setup would be more understeery, but you probably wouldn't notice that because the power/torque to the rear wheels would neutralize it a bit. The squared setup would be more neutral, and offer better turn-in, but can easily be oversteery, especially with the power to the rear wheels. People who do track-days/auto-x would prefer the oversteer over understeer, to be able to kick the rear out when needed to get the car pointed in the intended direction.

 

[Need4SpeedMotors]

Ok I'm more confused now, (19) the first number is the diameter and (9.5) is the width right?
Then how can 9.5 cause problems on the front but 9 & 10 are ok??

the concern comes into a few factors

the offset, the x factor which is the space and clearance between the closest part of the back of the wheel by the backpad and the caliper face near the pad.

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