Michelin Pilot Sport 4S

CanAutM3 · 08-07-2018, 12:24 AM

Quote:

Originally Posted by SenorFunkyPants

Hopefully Mich will bring out a "*" version of the PS4S for the front that gets better reviews, in which case I'd likely give them a go.
But for the moment I'm happy with the balance of my M4CP with the MPSS/MS4S front/rear combo in stock sizes.

No they won’t.

The F8X chassis is nearing the end of its life. BMW and Michelin won’t be investing in the development of a new specific tire for this chassis.

SenorFunkyPants · 08-07-2018, 02:44 AM

Quote:

Originally Posted by CanAutM3

No they won’t.
The F8X chassis is nearing the end of its life. BMW and Michelin won’t be investing in the development of a new specific tire for this chassis.

Indeed....I was thinking that if the next gen M3/4 comes on MPS4S as OEM then there is a chance the fronts will be the same size as the current F8x M3/4 and work well on it.

Shortyy · 08-07-2018, 07:19 AM

Hey lads,

Probably mentioned already here but what pressures do you run in your PS4S on track?

I run OEM 255/275 sizes on my OEM 19’s and my first time with them on track I felt they were a bit soft, I know the sidewalls are really soft but thought maybe you need to run a touch more pressure because of this?

I ran around 38psi hot. How does this sound?

jordanretro1223 · 08-14-2018, 07:20 PM

Read through a few pages in this thread.

Overall PS4S seem to run a size WIDER than the old PSS and also have more of a square shoulder as opposed to a more round one with the old PSS; can anyone confirm this observation?

I have a set of 19" forged mono's coming in 19x9.5 +17 and 19x11 +38 and based on some educated guidance from a friend that runs the performance desk at my BMW dealership we are leaning towards 255/35 and 295/30 PS4S.

Diameters match front to rear (26") and if the tires run a size wide then this should work well with the 9.5" front. This would match the front OEM diameter, but the rear would step down some. However the larger overall PS4S I believe will compensate.

I saw a 9.5" with a 265/35 this past weekend and MPact and its entirely too tall...

Whatever Michelin did with the PS4S sounds great performance wise but the sizing is way off from what the PSS was.

CigarPundit · 08-14-2018, 07:44 PM

I’m planning to run 265/35 and 285/35. The diameters are as follows:

Stock Overall Diameter: 26.0” F 26.6” R
PS4S 265/35: 26.3” (+.3)
PS4S 285/35: 26.9” (+.3)

PS4S 265/30: 25.3” (-.7)
PS4S 295/30: 26.0” (-.6)

I like the look of the 265/35, but that’s a matter of personal preference. I’m not going to run the 295/30 because I think it looks weird to have two different profiles on the car. I like the setup I am planning because the step ratio is unchanged. You will probably run into DSC problems if you change the ratio.

Sunny D · 08-15-2018, 04:45 PM

Quote:

Originally Posted by CigarPundit

I’m planning to run 265/35 and 285/35. The diameters are as follows:

Stock Overall Diameter: 26.0” F 26.6” R
PS4S 265/35: 26.3” (+.3)
PS4S 285/35: 26.9” (+.3)

PS4S 265/30: 25.3” (-.7)
PS4S 295/30: 26.0” (-.6)

I like the look of the 265/35, but that’s a matter of personal preference. I’m not going to run the 295/30 because I think it looks weird to have two different profiles on the car. I like the setup I am planning because the step ratio is unchanged. You will probably run into DSC problems if you change the ratio.

I would love to hear how this works out for you. And some pics too!

simpelton · 08-17-2018, 10:33 AM

Quote:

Originally Posted by CigarPundit

I’m planning to run 265/35 and 285/35. The diameters are as follows:

Stock Overall Diameter: 26.0” F 26.6” R
PS4S 265/35: 26.3” (+.3)
PS4S 285/35: 26.9” (+.3)

PS4S 265/30: 25.3” (-.7)
PS4S 295/30: 26.0” (-.6)

I like the look of the 265/35, but that’s a matter of personal preference. I’m not going to run the 295/30 because I think it looks weird to have two different profiles on the car. I like the setup I am planning because the step ratio is unchanged. You will probably run into DSC problems if you change the ratio.

This is what I'm running. Moved from PSS 255/35/19 and 275/35/19 to PS4S 265/35/19 and 285/35/19

Noise is reduced which is awesome but you also absolutely feel the stronger shoulder, side walls
The car just feels more planted, can get on throttle and hold even on cool tyres where as the PSS would start squirming. I haven't run the new tyres in anger yet
But first impressions are that the car should never have been delivered on the narrower OEM sections.
On the fronts, yes the wider section and taught side walls does wash out the front end response so the steering isn't as quick but I am not sure that's such a bad thing on the road considering, the car (non ZCP) has a tendency to snap the rear, a slightly slower front end and wider rears just makes the car better behaved but like I said, I'm yet to drive the thing with some anger to understand what the limit starts to feel like now.

Anyway, first impressions, absolutely worth the move from the PSS and the wider sections.

CigarPundit · 08-17-2018, 10:41 AM

Quote:

Originally Posted by simpelton

This is what I'm running. Moved from PSS 255/35/19 and 275/35/19 to PS4S 265/35/19 and 285/35/19

Noise is reduced which is awesome but you also absolutely feel the stronger shoulder, side walls
The car just feels more planted, can get on throttle and hold even on cool tyres where as the PSS would start squirming. I haven't run the new tyres in anger yet
But first impressions are that the car should never have been delivered on the narrower OEM sections.
On the fronts, yes the wider section and taught side walls does wash out the front end response so the steering isn't as quick but I am not sure that's such a bad thing on the road considering, the car (non ZCP) has a tendency to snap the rear, a slightly slower front end and wider rears just makes the car better behaved but like I said, I'm yet to drive the thing with some anger to understand what the limit starts to feel like now.

Anyway, first impressions, absolutely worth the move from the PSS and the wider sections.

Thanks for the report.

jordanretro1223 · 08-17-2018, 05:10 PM

Quote:

Originally Posted by CigarPundit

I’m planning to run 265/35 and 285/35. The diameters are as follows:

Stock Overall Diameter: 26.0” F 26.6” R
PS4S 265/35: 26.3” (+.3)
PS4S 285/35: 26.9” (+.3)

PS4S 265/30: 25.3” (-.7)
PS4S 295/30: 26.0” (-.6)

I like the look of the 265/35, but that’s a matter of personal preference. I’m not going to run the 295/30 because I think it looks weird to have two different profiles on the car. I like the setup I am planning because the step ratio is unchanged. You will probably run into DSC problems if you change the ratio.

The statement about the difference in profiles is not true, aside from the number being different.

255/35 and 295/30 actually have the same sidewall size practically; 89.25mm versus 88.5mm respectively. And stock front tire size is 255/35...

Remember the second number is the aspect ratio, or the percentage of the overall tread diameter.

So a 265/35 will have a 92.75mm sidewall while a 285/35 will have 99.75mm sidwall. The 295/30 sidewall (88.5mm) is actually closer to the 265/35 sidewall.

So basically as you go up in width you have to reduce the aspect ratio to keep matching sidewalls front to rear.

im.dejvid · 08-26-2018, 01:22 PM

Hello from Czech Rep.,

Now i have problem on my M4, yesterday i have new tire after Pilot Super Sport i choose Pilot Sport 4S , now i have feel my car is swimming, on hi speed - more than 200kmh im really afraid....

Maybe, front tyre i have SS and rear 4S, can be with this??

Thanks for answer...

CigarPundit · 08-26-2018, 11:24 PM

Quote:

Originally Posted by jordanretro1223

The statement about the difference in profiles is not true, aside from the number being different.

255/35 and 295/30 actually have the same sidewall size practically; 89.25mm versus 88.5mm respectively. And stock front tire size is 255/35...

Remember the second number is the aspect ratio, or the percentage of the overall tread diameter.

So a 265/35 will have a 92.75mm sidewall while a 285/35 will have 99.75mm sidwall. The 295/30 sidewall (88.5mm) is actually closer to the 265/35 sidewall.

So basically as you go up in width you have to reduce the aspect ratio to keep matching sidewalls front to rear.

I understand that the second number is the aspect ratio, but by running my setup, you are maintaining the overall stock aspect ratio and stepup front to rear. I'm looking to preserve that, not to get the same size sidewalls from a dimentional standpoint.

CanAutM3 · 08-27-2018, 05:47 AM

Quote:

Originally Posted by jordanretro1223

Read through a few pages in this thread.

Overall PS4S seem to run a size WIDER than the old PSS and also have more of a square shoulder as opposed to a more round one with the old PSS; can anyone confirm this observation?

I have a set of 19" forged mono's coming in 19x9.5 +17 and 19x11 +38 and based on some educated guidance from a friend that runs the performance desk at my BMW dealership we are leaning towards 255/35 and 295/30 PS4S.

Diameters match front to rear (26") and if the tires run a size wide then this should work well with the 9.5" front. This would match the front OEM diameter, but the rear would step down some. However the larger overall PS4S I believe will compensate.

I saw a 9.5" with a 265/35 this past weekend and MPact and its entirely too tall...

Whatever Michelin did with the PS4S sounds great performance wise but the sizing is way off from what the PSS was.

In general terms, it is the opposite, the PS4S seem to run NARROWER to equal tread widths than the PSS.

It is important to compare apples-to-apples and not compare different car manufacturers/generic specs when comparing tires. For instance, the generic 255/35R19 PS4S is narrower than the generic 255/35R19 PSS but wider than the BMW spec 255/35R19 PSS.

I would not recommend a 255/35R19-295/30R19 combo as having the same rolling diameter front and rear will yield excessive DSC interventions.

CanAutM3 · 08-27-2018, 05:57 AM

Quote:

Originally Posted by jordanretro1223

The statement about the difference in profiles is not true, aside from the number being different.

255/35 and 295/30 actually have the same sidewall size practically; 89.25mm versus 88.5mm respectively. And stock front tire size is 255/35...

Remember the second number is the aspect ratio, or the percentage of the overall tread diameter.

So a 265/35 will have a 92.75mm sidewall while a 285/35 will have 99.75mm sidwall. The 295/30 sidewall (88.5mm) is actually closer to the 265/35 sidewall.

So basically as you go up in width you have to reduce the aspect ratio to keep matching sidewalls front to rear.

This statement is inaccurate. The aspect ratio is the sidewall height relative to the tire section width.

CanAutM3 · 08-27-2018, 07:22 AM

Quote:

Originally Posted by im.dejvid

Hello from Czech Rep.,

Now i have problem on my M4, yesterday i have new tire after Pilot Super Sport i choose Pilot Sport 4S , now i have feel my car is swimming, on hi speed - more than 200kmh im really afraid....

Maybe, front tyre i have SS and rear 4S, can be with this??

Thanks for answer...

Check on your tire sidewalls. How do you expect us to find out on a forum

?

swagon · 08-27-2018, 07:44 AM

Checked Tire Rack and 275/40 R18 PS4S are still not available. And probably never will by the looks of it. That sucks for us with 18" 513's. Would have to upsize to 265/285 but then I'd run into issues at the local TÜV and they wouldn't let me on the streets unless I change the tires back to stock sizes. :/

im.dejvid · 08-27-2018, 01:16 PM

Quote:

Originally Posted by CanAutM3

Check on your tire sidewalls. How do you expect us to find out on a forum

?

Excuse me, i dont understand u. What check? Type of tire? Im sure i have on front tire PSS and rear PS4S... Bud i dont now why M4 now swimming ...

LAKERS333 · 08-27-2018, 01:37 PM

Quote:

Originally Posted by CanAutM3

Check on your tire sidewalls. How do you expect us to find out on a forum

?

I think he means that he has Super Sports on the front and 4S in the rear and he is thinking that is why he is having issues.

I have the same setup with Super Sports in front 265 35 19 and 295 35 19 4s's in the rear, traction is much better than stock setup although can get squirly in 1-2 or 2-3 still, especially when tires are not warmed up.

Are your tires warmed up when this happens? Do you have TC fully off... should only be happening really with Traction Control fully off and sometimes in MDM mode.

im.dejvid · 08-27-2018, 01:53 PM

Im sorry for my bad english..

Im really afraid goes more than 200 km / h. Car is swimming on road. TC off / on doesnmetter.

Torfhinn · 08-27-2018, 04:10 PM

Quote:

Originally Posted by CigarPundit

Thanks for the report.

View post on imgur.com

I am running the generic 265/35/19 and then generic 285/35/19 MPS4S. You can see the fitment in the gallery and I have a post track day set in there as well.

Typically I run about 32-33 PSI max on track days and about 32.5 cold when I am not on track.

CigarPundit · 08-27-2018, 04:31 PM

Quote:

Originally Posted by Torfhinn

View post on imgur.com

I am running the generic 265/35/19 and then generic 285/35/19 MPS4S. You can see the fitment in the gallery and I have a post track day set in there as well.

Typically I run about 32-33 PSI max on track days and about 32.5 cold when I am not on track.

Thanks much!

I’m curious what you think about the turn in and cornering grip.

Torfhinn · 08-28-2018, 03:41 PM

Quote:

Originally Posted by CigarPundit

Thanks much!

I’m curious what you think about the turn in and cornering grip.

I have zero issues with cornering and grip unless I am in a heavy down pour. I do plan on buying the Apex 19x10 ET25 and 19x11 ET44 and running Yokohama AD08R's in 275/305 - 30/19 for the track and likely swapping back to the MPS4S for my DD in 265/285 - 35/19 as they are amazing tires.

I frequent Brainerd International Raceway and I am able to take turn 1 on Donnybrooke at about 125 mph with no issue; I am sure I can push a little more but I like my car too much. On the Competition course turn 2 I can easily pull 115-125 (entry to exit) getting to about 135 before breaking to ~65 to take turn 3. The ONLY complaint I have is the tires don't hold up for the full 25 mins they get a little greasy by the last lap, but hey its cool down time anyways.

I just posted some 3/4 full shots as well:

View post on imgur.com

GangUp Link for Apex:
https://www.gangup.com/apex/apex-19-...s-q3-2018.html

Link to the track:
http://www.birperformance.com/
http://trackpedia.winhpde.com/wiki/B...tional_Raceway

maniz · 08-29-2018, 11:22 AM

I have driven with MPS4S in some HEAVY Colorado rains this summer, real frog-drowners. No issues whatsoever, but I didn't pretend the road was dry.

08-07-2018, 07:19 AM	#861
Shortyy Private 28 Rep 50 Posts Drives: BMW M140i Join Date: Feb 2017 Location: England iTrader: (0)	Hey lads, Probably mentioned already here but what pressures do you run in your PS4S on track? I run OEM 255/275 sizes on my OEM 19’s and my first time with them on track I felt they were a bit soft, I know the sidewalls are really soft but thought maybe you need to run a touch more pressure because of this? I ran around 38psi hot. How does this sound?
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08-14-2018, 07:20 PM	#862
jordanretro1223 Private First Class 16 Rep 153 Posts Drives: 328i Join Date: Apr 2011 Location: Delaware iTrader: (0)	Read through a few pages in this thread. Overall PS4S seem to run a size WIDER than the old PSS and also have more of a square shoulder as opposed to a more round one with the old PSS; can anyone confirm this observation? I have a set of 19" forged mono's coming in 19x9.5 +17 and 19x11 +38 and based on some educated guidance from a friend that runs the performance desk at my BMW dealership we are leaning towards 255/35 and 295/30 PS4S. Diameters match front to rear (26") and if the tires run a size wide then this should work well with the 9.5" front. This would match the front OEM diameter, but the rear would step down some. However the larger overall PS4S I believe will compensate. I saw a 9.5" with a 265/35 this past weekend and MPact and its entirely too tall... Whatever Michelin did with the PS4S sounds great performance wise but the sizing is way off from what the PSS was.
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08-14-2018, 07:44 PM	#863
CigarPundit On the road to serfdom 1392 Rep 673 Posts Drives: 2018 F80 M3 DCT, 2019 Raptor Join Date: Jun 2018 Location: Los Angeles iTrader: (0) Garage List 2018 F80 M3 DCT [0.00]	I’m planning to run 265/35 and 285/35. The diameters are as follows: Stock Overall Diameter: 26.0” F 26.6” R PS4S 265/35: 26.3” (+.3) PS4S 285/35: 26.9” (+.3) PS4S 265/30: 25.3” (-.7) PS4S 295/30: 26.0” (-.6) I like the look of the 265/35, but that’s a matter of personal preference. I’m not going to run the 295/30 because I think it looks weird to have two different profiles on the car. I like the setup I am planning because the step ratio is unchanged. You will probably run into DSC problems if you change the ratio. __________________ "God bless our troops...Especially our snipers.”
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08-26-2018, 01:22 PM	#868
im.dejvid Registered 0 Rep 3 Posts Drives: BMW M4 Join Date: Aug 2018 Location: Czech Republic iTrader: (0)	Hello from Czech Rep., Now i have problem on my M4, yesterday i have new tire after Pilot Super Sport i choose Pilot Sport 4S , now i have feel my car is swimming, on hi speed - more than 200kmh im really afraid.... Maybe, front tyre i have SS and rear 4S, can be with this?? Thanks for answer...
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08-27-2018, 07:44 AM	#873
swagon Major General 13521 Rep 8,165 Posts Drives: F80 6MT Join Date: Jun 2013 Location: . iTrader: (0)	Checked Tire Rack and 275/40 R18 PS4S are still not available. And probably never will by the looks of it. That sucks for us with 18" 513's. Would have to upsize to 265/285 but then I'd run into issues at the local TÜV and they wouldn't let me on the streets unless I change the tires back to stock sizes. :/ __________________ Last edited by swagon; 08-27-2018 at 07:50 AM..
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08-27-2018, 01:53 PM	#876
im.dejvid Registered 0 Rep 3 Posts Drives: BMW M4 Join Date: Aug 2018 Location: Czech Republic iTrader: (0)	Im sorry for my bad english.. Im really afraid goes more than 200 km / h. Car is swimming on road. TC off / on doesnmetter.
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08-29-2018, 11:22 AM	#880
maniz Assistant TO the Regional Manager 617 Rep 728 Posts Drives: 2018 M4 Coupe Join Date: Mar 2014 Location: Denver iTrader: (0)	I have driven with MPS4S in some HEAVY Colorado rains this summer, real frog-drowners. No issues whatsoever, but I didn't pretend the road was dry.
	Appreciate 0 Quote