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What is the widest tire size you have used on your S550 Mustang? Share info & images

Einstein_nikola

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Good morning, Here is a recap of this Ford Mustang GT on 285/35/19 Front and 345/30/19 Rear with Project 6GR Wheels Satin black.


For more information on sizes, available finishes and pricing Click Below.

Project 6GR Wheels





Did they need to do ANY MODIFICATIONS to get 345s on the rear??
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rumson

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Thanks for this thread, tons of great info!

What is the widest tire i can fit on these rims:

Front: 20x9 +32
Rear: 20x10.5 +42

I plan on lowering it with the Eibach sportline springs.

Thanks!
 

shogun32

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What is the widest tire i can fit on these rims:

Front: 20x9 +32
Rear: 20x10.5 +42
look at TireRack's specs tab. But in general 275 for the front, 305 for the rear. However for best feel and performance 255 or 265 front, 285 or 295 rear.
 

dn1984

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looking at the 305s i have on the rear now i think i could easily fit 325s on the same wheel (11")
 

Roh92cp

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I run G2 305/30 20 on 12" rear. Wheels were 20x10 with 35 offset and I had 2” welded to the inside.
BCAE060F-47B4-42B6-8F9E-4A3FD867B692.jpeg
F9DDECAA-4A4C-476E-99E0-789538AF8DB4.jpeg
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2morrow

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look at TireRack's specs tab. But in general 275 for the front, 305 for the rear. However for best feel and performance 255 or 265 front, 285 or 295 rear.
Everything about this is great advice.
 

sunnyptl

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I’m trying to go from 20’s to 19’s soon for better track usage and possibly boost next season. I want to hear your thoughts

I just can’t wrap my mind around what I want to do for street use. here's what I am looking at

1) 19x10 +35 285/35 and 19x11 +50 with 325/30
or
2) 19x10 +35 285/35 and 19x11.5 +56 with 325/30
or
3) 19x10 +35 285/35 and 19x11.5 +56 with 345/30
or
4) 19x11 +24 295/30 and 19x11.5 +56 with 325/30
or
5) 19x11 +24 295/30 and 19x11.5 +56 with 345/30

For track use I’m thinking about just getting a matching pair of fronts for the rears for track days (road course)

Will need to get springs with a less aggressive drop so I’m Thinking eibach pros.

My setup rn is 20x10 285/35 and 20x11 305/35 lowered on eibach sportlines

I personally want to do option 5 however when tracking and doing corners super hard I am worried it might rub in the front (assuming my rears match the front during track usage). With that being said my next option would be option #3. But what do you guys think about the bulge I would have from running 345 on a 19x11.5? Safe with boost or not really?
AD456629-EFE8-477F-BE75-7483908459A3.JPG
 

2morrow

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I’m trying to go from 20’s to 19’s soon for better track usage and possibly boost next season. I want to hear your thoughts

I just can’t wrap my mind around what I want to do for street use. here's what I am looking at

1) 19x10 +35 285/35 and 19x11 +50 with 325/30
or
2) 19x10 +35 285/35 and 19x11.5 +56 with 325/30
or
3) 19x10 +35 285/35 and 19x11.5 +56 with 345/30
or
4) 19x11 +24 295/30 and 19x11.5 +56 with 325/30
or
5) 19x11 +24 295/30 and 19x11.5 +56 with 345/30

For track use I’m thinking about just getting a matching pair of fronts for the rears for track days (road course)

Will need to get springs with a less aggressive drop so I’m Thinking eibach pros.

My setup rn is 20x10 285/35 and 20x11 305/35 lowered on eibach sportlines

I personally want to do option 5 however when tracking and doing corners super hard I am worried it might rub in the front (assuming my rears match the front during track usage). With that being said my next option would be option #3. But what do you guys think about the bulge I would have from running 345 on a 19x11.5? Safe with boost or not really?
Good idea on the square set up. I, Personally, wouldn't try to go wider than 315 in the front if so.

As far as the rear tire width goes, check out the tire your looking to buy with TireRack's online measurements to ensure a good fit.
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