Tires. What is every one running?

[mrgizmo04]

I had a similar experience mounting them lol very stiff sidewalls but they’re still less noisy than other Federal tires. The grip and feel is great. I’d probably buy them again


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I'd love to do a back to back comparison vs rs4. Folks I have spoken with that have tried both say rs4 does everything better, even after adjusting for price.

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[mrgizmo04]

Just installed a set too and my tire installer had a hell of a time mounting 275/35's on 18x9.5 Arc 8's due to the sidewall stiffness.

Yeah they are no joke stiff. I had them off the rims at the same time as ps4s, I could easily compress the ps4s sidewall with my fingers, not on rspro.

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[DESMDR3]

Just installed a set too and my tire installer had a hell of a time mounting 275/35's on 18x9.5 Arc 8's due to the sidewall stiffness.

I had a similar experience mounting them lol very stiff sidewalls but they’re still less noisy than other Federal tires. The grip and feel is great. I’d probably buy them again


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[liam821]

Interesting to hear so many people running PS4S

The PS4S replaced the MPSS, so it's to be expected.

[Nihilation]

I switched to Federal RS-Pro. I honestly can not say they are much louder on highways due to my diff whine and exhaust volume, but the sidewalls are super stiff (to the extent that I need to reduce camber all around coming off ps4s) and they handle the heat pretty well, at least enough to have proper fun. Not for chasing pb or lap times, and probably not as good as rs4 or re71z but cheap.

Just installed a set too and my tire installer had a hell of a time mounting 275/35's on 18x9.5 Arc 8's due to the sidewall stiffness.

[Bimmer777]

I'll throw in my support for Hankooks RS4s. I've now run them all summer with a few track days and see very little wear. Grip is great, maybe others have more but I am not trying to set track records so its more than enough for me. What was a pleasant surprise is the street comfort and noise - these tires are very comfortable for daily driving. Rain traction is also very good, in contrast to what others have said in this thread, both on track and on street. I was originally planning on getting a second set of wheels to run PS4S on the street but these tires are so good it makes second set of wheels unnecessary. Very happy with them.

[liam821]

Continental Sport Contact vs Michelin Pilot Sport 4 S vs Goodyear Eagle F1 SuperSp vs Vredestein Ultrac Vorti vs Falken Azenis FK510 vs Kumho Ecsta PS91 vs Toyo Proxes Sport vs Accelera PHI:

https://www.youtube.com/watch?v=4NcenJ0zmAY

This is also pretty interesting, how much faster is a Cup2 vs a PS4S: https://www.youtube.com/watch?v=aMv64liOqIE

[DESMDR3]

Yeah agree, ps4s is great street tire and can do ok on track for lower level groups. Sidewalls don't give confidence as they feel super mushy. I switched to Federal RS-Pro. I honestly can not say they are much louder on highways due to my diff whine and exhaust volume, but the sidewalls are super stiff (to the extent that I need to reduce camber all around coming off ps4s) and they handle the heat pretty well, at least enough to have proper fun. Not for chasing pb or lap times, and probably not as good as rs4 or re71z but cheap.

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RS Pros for the win. I got my set for $560


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[mrgizmo04]

Yeah, not surprising though. The PSS and PS4S are really NOT high performance tires, at least in the world of sports cars. They're a great tire if all you do is drive on the street and occasionally hit a few turns in the canyons, and you'll probably love them if you're coming from something atrocious like a PS2 or a Hankook V12 Evo. The PSS/PS4S are pretty shit if you mainly drive canyons, and forget about tracking on them unless you're just out to have some fun in beginner or low intermediate. They really don't handle heat well and don't even hold a candle to a proper performance street/track 200TW class tire for feedback, grip, and consistency with heat. The sidewalls are also quite compromised and favour ride quality over responsiveness and feedback. The stiffer your suspension/bushings/chassis is, the more you need a proper supportive tire sidewall or else you'll just feel the tire rolling around as soon as you load them up.

With that said I understand why they're popular, they are a great road tire but if you're planning on getting more serious with your car and your driving then it's time to move on.

Yeah agree, ps4s is great street tire and can do ok on track for lower level groups. Sidewalls don't give confidence as they feel super mushy. I switched to Federal RS-Pro. I honestly can not say they are much louder on highways due to my diff whine and exhaust volume, but the sidewalls are super stiff (to the extent that I need to reduce camber all around coming off ps4s) and they handle the heat pretty well, at least enough to have proper fun. Not for chasing pb or lap times, and probably not as good as rs4 or re71z but cheap.

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[freshprince2421]

Firestone Indy 500's here. Great daily tire especially for the price. At 265/35/18 square I would go PS4S as price is not dramatically more. Around $1000 or so for the PS4S. I compromised and went 255/35/18 square as the Firestones were significantly cheaper in that size. With a rebate it was like $530 installed. Given my car is my daily driver, I personally couldn't justify paying almost double for the PS4S in my preferred size.

[BBRTuning]

Running MPSS, buddy was also running MPSS but recently switched to RE-71R and found they have a ton more grip. Interesting to hear so many people running PS4S

Yeah, not surprising though. The PSS and PS4S are really NOT high performance tires, at least in the world of sports cars. They're a great tire if all you do is drive on the street and occasionally hit a few turns in the canyons, and you'll probably love them if you're coming from something atrocious like a PS2 or a Hankook V12 Evo. The PSS/PS4S are pretty shit if you mainly drive canyons, and forget about tracking on them unless you're just out to have some fun in beginner or low intermediate. They really don't handle heat well and don't even hold a candle to a proper performance street/track 200TW class tire for feedback, grip, and consistency with heat. The sidewalls are also quite compromised and favour ride quality over responsiveness and feedback. The stiffer your suspension/bushings/chassis is, the more you need a proper supportive tire sidewall or else you'll just feel the tire rolling around as soon as you load them up.

With that said I understand why they're popular, they are a great road tire but if you're planning on getting more serious with your car and your driving then it's time to move on.

[TwoD]

Running MPSS, buddy was also running MPSS but recently switched to RE-71R and found they have a ton more grip. Interesting to hear so many people running PS4S

[maupineda]

I have Bridgestone S007A, they don't have too many reviews, but for normal driving they are great, they have plenty of grip, but they are on the stiff and make more noise, however, they also are cheaper in the OE sizes. I will say the actual performance difference is a bit less than the price gap, which makes the 007A a good buy (value)

[bmw]

Michelin PS4S
Only "problem" is the lack of variety in the marketplace, now running these on the M3, Macan, 911, and Vantage lol. There does not seem to be any competing product that is not a compromise in some area.

[SG/IRM3]

I now have both autox and track experience with the Yokohama A052 after running RE-71s for several years and can provide some feedback based on my experience.

Autox - every bit as grippy as the B-Stone but has noticeably softer sidewalls which requires higher pressures to avoid excessive rollover and improving responsiveness. For reference, with the RE-71 I typically ran 31f-28r pressure. With the Yoko I found 33f-31r to work pretty well. Still not quite as responsive as the B-Stone but not much is. I'm undecided about which I will run for autox next year.

Track - here I prefer the A052 which, despite being a 265 vs a 275 in the RE-71 the grip is at least equal but they do not get greasy like the B-Stone does after a few laps. Very consistent lap after lap. I really wish they made a 275 in the Yoko but the only one is too tall since it's a 40 aspect ratio. I really liked them. Longitudinal grip is better and putting power down on corner exit is better than the RE-71 which can be a challenge in our cars.

The street manners are better on the A052 as well. It's much quieter and not as harsh although you can tell it's a 200TW tire and you feel expansion joints and sharp bumps more so than a typical passenger car tire. Overall, I think the A052 is a really good dual purpose tire and will likely buy them again. I have not tried them in the wet where some reviews seem to indicate the RE-71 is better under wet conditions. I would add that they like and need a lot of negative camber due to the softer sidewall - I don't think they'd last long on the front of an E46 M3 with a stockish suspension and no camber plates if autoxing or tracking. The RE-71 is definitely better in that scenario.