03-16-2022, 08:16 AM | #23 |
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I've not seen this specific comparison published anywhere. I was creating the graph in my mind from driving/experiencing the two tire designs on three different platforms (E39 M5, E90 M3 and M2C).
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03-16-2022, 09:45 AM | #24 | |
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I actually don't even understand talking about the PSS/PS4S and track days. If you can afford an M2/3/4 it stands to reason that you can afford a proper set of drive-to-and-from track tires for your track day. |
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03-16-2022, 09:57 AM | #25 | |
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I agree with you completely on track use. I can't even recall the last time I drove a street type tire on a track (unless you're talking about autocrossing and TW200 tires like RE-71Rs). I bought the first R-compound tire introduced back in 1985 (Goodyear Gatorback S with its molded 4/32" tread and all) and never looked back.
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03-16-2022, 10:05 AM | #26 |
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Having run both tires on track many times when either my track tires were burned up, or for heavy rain, or in extra cold weather, and even in light snow on track, the PS4S is slightly faster than the PSS in the dry, a decent bit quicker in the wet, and has higher grip levels in the cold.
The PS4S is also quieter, more comfortable, and lasts longer than the PSS (>20K road miles for me on each). The only thing the PSS has going for it is better turn in and responsiveness. I'll switch to the Conti SportContact 7 or PS5S for my daily driving and bad weather track tire, whenever either of those make it to the US. Last edited by ZM2; 03-16-2022 at 10:36 AM.. |
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03-16-2022, 03:26 PM | #27 | |
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Anyone that knows enough to run a 71R is a friend of mine. Old tech or not, they are still my favorite street/track tire. I wish they would hurry up and give us the S in the US. I too had Gatorbacks, we're going way back now. I did prefer the look of the P7 (iconic IMO), and the grip of the A008 (put everything to shame), but the Gator's were awesome for sure. |
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03-16-2022, 03:46 PM | #28 | |
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Speaking of the RE-71R, I still have a set mounted on a 2nd set of wheels for the M2C but haven't had a chance to use them for over a year now. Fun tires for sure, and what a difference in steering response vs PS4S. EDIT: Found it! A pic of my Bavaria with the A-008Rs mounted!
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03-16-2022, 04:50 PM | #29 | |
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Bavaria, wow. I wish I could find a new leftover set of 71R's. EDIT: You'll appreciate these... |
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09-23-2023, 02:06 AM | #30 |
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So I just went from the * rated PSS to the non * PS4S today and after the first drive wanted to add what I noticed right away.
1. Ride is much better to the point where you will think the roads you normaly drive have been repaved. That much better. 2. From a dead stop grip is better. Not better then my old tires but better then when my PSS were young. 3. The negative. Turn in is noticeably softer that crisp nose dive and the road feel is muted. |
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11-26-2023, 01:48 PM | #31 |
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I'm about to do the same and upgrade to the PS4Ss. There's the Mercedes spec and normal spec on tire rack. Is it obvious to avoid the MO1 version simply because we are driving BMWs? Anyone know the difference?
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11-28-2023, 12:48 PM | #32 | |
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For me the PS4S was a no compromise upgrade in stock sizes. |
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12-01-2023, 06:45 AM | #33 | |
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12-01-2023, 02:27 PM | #34 |
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Is wet performance that much better? Enough to make one say that these are actually good in the rain for perf tires.. Or is it a bit overblown due to the fact that super sports are so terrible in wet conditions?
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04-29-2024, 02:31 PM | #38 |
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My 2 cents, I have the PSS on my M2 and the PS4S on my R8. The PSS have a much more firm sidewall than the PS4 so the ride feels a little stiffer but turn in / turning at speed feels more direct but traction breaks quickly at the limit. The sidewall flex in the ps4s makes breaking traction at the limit a little more forgiving. The PSS do have superior traction tho in colder temps like 40-50f. When my rears wear out I’m going with the PSS.
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04-29-2024, 04:20 PM | #39 | |
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If this is in fact what you're experiencing I'd say it's because you're not comparing apples to apples, ie the tires have different mileage on them, maybe different driving styles, and are on different cars. The PS4S should be the clear winner as the temps lower. It's a true 300 tw tire, whereas the PSS is a lie at 300 tw, more like 280 or 250 with regards to grip/how it wears/how it handles cold/rain, etc. |
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04-30-2024, 10:03 AM | #40 | |
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But on the cooler mornings before the tires warmed up I would get a lot of front end scrub on the ps4s and the rear would easily step out on throttle around turns. The only issue I would get on the pss was some wheel hop accelerating from a stop in 1st gear. So I guess you could say lateral grip on the ps4s when cold is worse than the pss but straight line traction was better on the ps4s than the pss. This was the case even when the pss were new tho, so not sure mileage really made a difference. |
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04-30-2024, 11:01 AM | #41 |
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This confirms that your experience is bespoke to you. The PS4S performs better in the rain, and in colder temps than the PSS when compared apples to apples on the same car from new. The best part is that the PS4S keeps its edge for longer too, because of better wear characteristics.
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04-30-2024, 07:38 PM | #42 | |
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05-01-2024, 05:02 AM | #43 |
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Having switched four cars from PSS to PS4S, there's no question the PS4S is better performing in cooler temperatures especially in longitudinal grip. Michelin confirms that observation with their own testing as it was one of the design goals with the tire compound.
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