MPS4's 295/30/20

[NORAGRETS]

I know the Pilot Sport 4’s run a tinyyy bit wider than the super sports, anyone know if 295/30/20 will cause any issues?

I’m running a 12.5mm spacer. Fitment with the 285/30/20 MPSS is 👌🏻. But a 10mm difference in the aspect ratio isn’t massive…just don’t want any rubbing

[MrRager01]

I run that and I am dumped on v3s!

[MrRager01]

No rubbing

[NORAGRETS]

Originally Posted by MrRager01

I run that and I am dumped on v3s!

Ru running the same spacers? Any changes in camber to make sure no rubs?

[MrRager01]

I am running no spacer

[MrRager01]

But I promise you that diff in tires won’t do any harm. I ran a 12 spacer in the rear and when I was on my 666 but I was on 285. That being said, if you do 10 and 295, you should be great!

[M3SQRD]

There’s a 0.5” difference in tread width but the 295/30 was measured on a 10.5” wide wheel vs. a 10” wide wheel for the 285/30. Assuming you’re running stock F 9et29 and R 10et40, I’m not sure how aggressive your 285 currently sits with a 12.5 mm spacer but it would need to be able to handle at least a 0.25” increase in width. A 10et27.5 sounds like it’s a bit on the aggressive side. Actual increase on the sidewall width will be even wider than 0.25” increase. Also, some MPS4S have even thicker wheel sidewall protection. 12.5 mm spacer may be too aggressive for a 295/30 on a 10et40. Diameter is 0.2” larger for the 295/30 as well.

[NORAGRETS]

Originally Posted by M3SQRD

There’s a 0.5” difference in tread width but the 295/30 was measured on a 10.5” wide wheel vs. a 10” wide wheel for the 285/30. Assuming you’re running stock F 9et29 and R 10et40, I’m not sure how aggressive your 285 currently sits with a 12.5 mm spacer but it would need to be able to handle at least a 0.25” increase in width. A 10et27.5 sounds like it’s a bit on the aggressive side. Actual increase on the sidewall width will be even wider than 0.25” increase. Also, some MPS4S have even thicker wheel sidewall protection. 12.5 mm spacer may be too aggressive for a 295/30 on a 10et40. Diameter is 0.2” larger for the 295/30 as well.

You sir are a fitment legend

[M3SQRD]

Originally Posted by NORAGRETS

You sir are a fitment legend

Thanks. It’s from working out the correct tire sizes for various wheel setups for street and track tires/fitments on e36 M3, e46 M3, e92 M3s, f82 M4, Civic and S2000s. I like non-aggressive flush setups that require no more than -2.0 deg of R camber (typically run -1.8 deg). I’ve been going to the track for > 30 years.

[NORAGRETS]

Originally Posted by M3SQRD

Thanks. It’s from working out the correct tire sizes for various wheel setups for street and track tires/fitments on e36 M3, e46 M3, e92 M3s, f82 M4, Civic and S2000s. I like non-aggressive flush setups that require no more than -2.0 deg of R camber (typically run -1.8 deg). I’ve been going to the track for > 30 years.

Knowledge is power. I’m taking notes here thanks man

[louielouie]

Richland Forged has the 666 design inspired wheels with more aggressive offsets with 20x11+44 in the rear so can run on 305. Better off doing that than spacers.

[M3SQRD]

Originally Posted by louielouie

Richland Forged has the 666 design inspired wheels with more aggressive offsets with 20x11+44 in the rear so can run on 305. Better off doing that than spacers.

Quality spacers are not an issue. The M4 GT4 factory-built race car uses a > 30 mm spacer on the F. Must people that track with 10.5” wide wheels run 15-20 mm spacers. Just make sure the spacer is sitting flush on the brake hub.

[louielouie]

Originally Posted by M3SQRD

Quality spacers are not an issue. The M4 GT4 factory-built race car uses a > 30 mm spacer on the F. Must people that track with 10.5” wide wheels run 15-20 mm spacers. Just make sure the spacer is sitting flush on the brake hub.

My preference is for more aggressive offsets to properly run wider tires so they're not meaty looking.

[M3SQRD]

Originally Posted by louielouie

My preference is for more aggressive offsets to properly run wider tires so they're not meaty looking.

Track use requires a large front spacer if you want to run a 295 square setup on 10.5et36 wheel. M4 GT4 does the same thing with 11et30 wheels. If done right you can fit 315 mm square tires.

[louielouie]

Originally Posted by M3SQRD

Track use requires a large front spacer if you want to run a 295 square setup on 10.5et36 wheel. M4 GT4 does the same thing with 11et30 wheels. If done right you can fit 315 mm square tires.

Did OP ask about track use and edit it?

[NORAGRETS]

Originally Posted by M3SQRD

Quality spacers are not an issue. The M4 GT4 factory-built race car uses a > 30 mm spacer on the F. Must people that track with 10.5” wide wheels run 15-20 mm spacers. Just make sure the spacer is sitting flush on the brake hub.

Yeah I was initially concerned about spacers but I’ve had 12.5 mm all round for a year and never had a single problem

[NORAGRETS]

Originally Posted by louielouie

Did OP ask about track use and edit it?

Nope. Lol

[NORAGRETS]

Originally Posted by louielouie

Richland Forged has the 666 design inspired wheels with more aggressive offsets with 20x11+44 in the rear so can run on 305. Better off doing that than spacers.

That’s my plan actually lol. Waiting till spring to order the wheels tho

[M3SQRD]

Originally Posted by louielouie

Did OP ask about track use and edit it?

Just pointing out if it’s safe to run a spacer in professional motorsport and track driving, it’s safe to run a spacer on the street. You brought up running more aggressive wheel offsets (11et44 isn’t more aggressive than 10et40, it’s the width difference that makes it appear more aggressive) instead of running spacers. Nothing wrong with running spacers.

[M3SQRD]

Originally Posted by NORAGRETS

That’s my plan actually lol. Waiting till spring to order the wheels tho

I’m running HRE R101LW 19x9.5et22 w/ 265/35 and 19x11et42 w/ 305/30 with MCS 2WR suspension. Zero rubbing with slightly tucked rear tires.