Last minute confirmation: 20x9s with 275/40s all corners?? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Maker · 05-02-2015, 06:49 PM

Hi,

Just about to order the 275/40 tires for the 4 new oe replica 20x9 wheels I got.

No fitment issues on a 2011 SS right?

Thanks!
Maker

The Flash · 05-02-2015, 07:21 PM

Quote:

Originally Posted by Maker

Hi,

Just about to order the 275/40 tires for the 4 new oe replica 20x9 wheels I got.

No fitment issues on a 2011 SS right?

Thanks!
Maker

Hello Maker. I just want to clarify if I got you correctly :

you are going to fit 275 rubber on all four corners all of them with a 40 profile??

The Flash

camguynj · 05-02-2015, 08:03 PM

Quote:

Originally Posted by Maker

Hi,

Just about to order the 275/40 tires for the 4 new oe replica 20x9 wheels I got.

No fitment issues on a 2011 SS right?

Thanks!
Maker

No front fitment issues ( 20x9) but steering really stiffened. I didn't like it, almost felt like I had no power steering. Took the 275/40s off and went back to 245/45

Maker · 05-02-2015, 08:49 PM

Quote:

Originally Posted by The Flash

Hello Maker. I just want to clarify if I got you correctly :

you are going to fit 275 rubber on all four corners all of them with a 40 profile??

The Flash

I think the second number is the sidewall dimension right? Is that the profile?

oldfriend · 05-02-2015, 09:06 PM

275mm cross section off the tire
40 ( % ) off the cross section for the tire wall

The Flash · 05-02-2015, 09:10 PM

Quote:

Originally Posted by camguynj

No front fitment issues ( 20x9) but steering really stiffened. I didn't like it, almost felt like I had no power steering. Took the 275/40s off and went back to 245/45

That's one of the issues I wanted to point out to. All the other ones are much less relevant after the dramatic results you've got.

In my experience w GM vehicles a small increment , say from 245 to 255 is achievable w minor consequences (light shudder at parking speeds when steering is close to full lock, noises from pump during parking maneuvers at tight angles.

The intended wheel width requires replacing the power steering pump for a larger one or considering a servo assisted unit which in itself is a major mechanical/engineering challenge.

Hope you find an acceptable option for your project

The Flash

Sir Nuke · 05-02-2015, 10:37 PM

Quote:

Originally Posted by Maker

Hi,

Just about to order the 275/40 tires for the 4 new oe replica 20x9 wheels I got.

No fitment issues on a 2011 SS right?

Thanks!
Maker

CORRECT.......I've been running this combo for nearly 3 years.....no issues at all.

Jrichards73 · 05-02-2015, 10:46 PM

I agree with the stiffer steering, no fit issues.

Maker · 05-03-2015, 11:16 AM

So you're suggesting that I go with 20x8 on the front?

Anybody else out there with 20x9 275/40 all around?

camguynj · 05-03-2015, 03:14 PM

Quote:

Originally Posted by Maker

So you're suggesting that I go with 20x8 on the front?

Anybody else out there with 20x9 275/40 all around?

You can go with 20x9 front but with 245/45

Maker · 05-03-2015, 06:42 PM

I'm seeing different opinions on this. Gahhhh!

I already have the 4 20x9s. Just need to know what size tires to run.

Is the power steering really that effected by the extra inch??

i2disturbedSS · 05-03-2015, 06:46 PM

I have no issues. Do it you are over thinking it.
Some ppl run 20x10 on all 4

camguynj · 05-03-2015, 06:49 PM

Quote:

Originally Posted by Maker

I'm seeing different opinions on this. Gahhhh!

I already have the 4 20x9s. Just need to know what size tires to run.

Is the power steering really that effected by the extra inch??

YES !!! It'll feel like you hardly even have power steering.

Maker · 05-03-2015, 06:54 PM

You two are no help lol

One says the power steering will suck one says it's fine...

Any other opinions up in this piece?

05-02-2015, 06:49 PM	#1
Maker Nice to meet you. Drives: '11 Black 1SS/RS Join Date: Jul 2011 Location: Massachusetts Posts: 189	Last minute confirmation: 20x9s with 275/40s all corners?? Hi, Just about to order the 275/40 tires for the 4 new oe replica 20x9 wheels I got. No fitment issues on a 2011 SS right? Thanks! Maker

05-02-2015, 10:46 PM	#8
Jrichards73 Drives: 2011 2SS/RS Victory Red Join Date: Aug 2011 Location: Virginia Posts: 921	I agree with the stiffer steering, no fit issues. __________________ Updates: BTR Stage 2 VVT Cam Kit w/Smith Brothers Trunnions, Fluidampr, RX catch can, B&M Trans pan mod, Kooks Black Headers, Borla S-tunes, Eibach Multi-Pro-R2 coilovers and Swaybars, BMR Full Bushing kit with Toe and Trailing arms, RB Rotors w/EBC Pads, GForce 1400 Axles (now on order). AVH-X5800BHS in Scosche GM5201AB.

05-03-2015, 06:46 PM	#12
i2disturbedSS Drives: 2010 SS L99 IOM Join Date: Aug 2012 Location: CA Posts: 1,924	I have no issues. Do it you are over thinking it. Some ppl run 20x10 on all 4 __________________ 369rwhp/392rwtq "Spending money I don't have, to buy parts I don't need, to impress people I don't know!" -Jenkins

05-02-2015, 09:06 PM	#5
oldfriend Drives: Fiat 500 E Join Date: Dec 2009 Location: 32.7607/N. 16.95947/W Posts: 7,816 View My Garage	275mm cross section off the tire 40 ( % ) off the cross section for the tire wall

05-03-2015, 11:16 AM	#9
Maker Nice to meet you. Drives: '11 Black 1SS/RS Join Date: Jul 2011 Location: Massachusetts Posts: 189	So you're suggesting that I go with 20x8 on the front? Anybody else out there with 20x9 275/40 all around?

05-03-2015, 06:42 PM	#11
Maker Nice to meet you. Drives: '11 Black 1SS/RS Join Date: Jul 2011 Location: Massachusetts Posts: 189	I'm seeing different opinions on this. Gahhhh! I already have the 4 20x9s. Just need to know what size tires to run. Is the power steering really that effected by the extra inch??

05-03-2015, 06:54 PM	#14
Maker Nice to meet you. Drives: '11 Black 1SS/RS Join Date: Jul 2011 Location: Massachusetts Posts: 189	You two are no help lol One says the power steering will suck one says it's fine... Any other opinions up in this piece?