305/35/20 on a 20x10 (+40 offset) issue

[Jinx]

Ok, I want to lower this car on a set of BMR spring that I already have.
I just got these wheel shadow chromed by Prince Wheel Service.
I just bought the tires.

Now this is what I got:



This is making me sick to my stomach....

Examples of how they fit on a car with same listed wheel specs and tire specs (except the brand in Nitto, which apparently runs much narrower):

^That setup is said to no rub by the owner.

 

[stang8psi]

Do you have a adj Panhard bar?

 

[Jinx]

Yes. Full BMR stuff ready to go. PHB, LCA with relo, UCA with mount

This is at stock ride height with stock everything install with these wheels. 1/4" poke on each side.

 

[Pentalab]

Your offset should be at least 45mm. I have 10 x 18"s on the rear with nitto 285-40-18's ( NT-555). My 10" rear rims have a 45mm offset. They just barely fit in the wheel wells. ( that was with a BMR adj PHB...later replaced with a WL- watts link).

The bigger the offset, the more inboard the rims sits. Smaller the offset, and it will sit further outboard. 5mm = .2" That's why ur sticking out on each side. Didn't even think you could get a 10" wide rear in anything less than a 45mm offset.

Your offset is not enough..and there is no fix for that. Prez of local mustang club bought new rims 2 yrs ago.....same deal... his 285's on 20" rims, 10" wide, stuck out a whopping 15mm (.6" on each side). He had bought 10" wide rims..with a 30mm offset. Expensive mistake. His rims he had bought were not intended for the rear ( or front) of a mustang.

A 305 is a big tire, 20mm wider than a 285mm. That's another 10mm (.4") on each side.

 

[Jinx]

I understand offset. What killed me here is one brand running narrower/wider than the other (Nitto, Cooper).

Latemodel Resto calls for a 275/35/20 with these wheels. But Ive seen examples such as the Grabber Blue one that managed to get away with 305/35/20 on a 20x10 (40 offset) with Nittos. What kills me is how close the 275/35/20 and 305/35/20 MT Sport Comps (big thread on here about them) were shown to be by Tiger. MT Sport Comps are basically the same tire as Cooper RS3-S.

Am I going to go to a 275/35/20?

 

[csamsh]

I'd go 275 or 285. You're not gaining anything but bulge by using a 305 on a 10.

If you want to ditch the setup...315 on 11 works too.

My old car:

 

[Jinx]

I had 315 on my 20x11 Steeda Spyders.

 

[Gabe]

I had 315 on my 20x11 Steeda Spyders.

Same as a buddy of mine, he had 315/30/20 Toyo R888's on his Spyders, and they fit awesome:

 

[Jinx]

I think they are 59mm offset though. That setup fit perfect. I still have my black w/machines lip Spyders that I need to sell at some point. I decided to move to a different type of wheel. This will be my first mustang out of 4, that won't feature a deep dish style wheel with a polished lip and black spokes. Lol.


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[Roush fun]

I have the exact same setup as you and im using steeda utralite springs. i do have my quarters rolled and a decent amount of poke. I do not seem to scrub over bumps yet but im sure it comes close. Also i actually like the poke that offset has. I think it looks mean!

 

[Roush fun]

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[Jinx]

Same tire? I believe I commented on your car before and it's what got me to pull the trigger on 305s. Damn you. Lol


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[Roush fun]

Same tire? I believe I commented on your car before and it's what got me to pull the trigger on 305s. Damn you. Lol


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Im sorry your unhappy! I spoke with a ton of guys about my setup before purchase and i knew it was gonna have some poke.
i think it looks really mean in person. i very happy with the setup, i do wish i had your color combo although!

 

[Roush fun]

Im sorry your unhappy! I spoke with a ton of guys about my setup before purchase and i knew it was gonna have some poke.
i think it looks really mean in person. i very happy with the setup, i do wish i had your color combo although!

mickey thompson et streets 305/35/20

 

[tigerhonaker]

mickey thompson et streets 305/35/20

M/T SC-5 Wheels & Street Comp tires ... 305's rear & 275's front.













Terry

 

[Roush fun]

Terry is the reason I bought them hahahaha!

 

[Pentalab]

Terry.... how wide are your front + rear rims ??

 

[Jinx]

But I think Terry offset is 45 with those MT Wheels


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[DRock]

have a shop machine 3mm off the back of each rear wheel?

 

[tigerhonaker]

Terry.... how wide are your front + rear rims ??

Fronts are 20x9" and rears are 20x10.5".

M/T SC-5 wheels.

Offset is 45 mm.




Terry