06-06-2016, 12:30 PM | #1 |
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Michelin Pilot Super Sport Lack of Grip
Hey guys, this is my 1st post.
I have recently bought a new 2016 320i Sport Line and immediately swapped the stock run flat tires with new Michelin Pilot Super Sport ones because I don't like the run flats noise and harsh ride. As expected the Michelins turned out to be really comfortable however, in many instances when putting my foot on the throttle I am experiencing a higher than expected wheel spin on the rears. This is happening at rather low speeds when accelerating a bit on corners or when pulling away. I expected the Michelins to be grippier and I am surprised that they actually are not. I was hoping that after a break in period grip would become better but after already 500km on the tires I haven't noticed any grip improvement. I have also tried lowering psi on the rears from 35 to 32 but no improvement either. I searched on the web regarding this, but I didn't get a really satisfaying answer. Hopefully someone can shed some light and give me a convincing explanation. My set up is 225/45ZR18 95Y Extra Load in the front and 255/40ZR18 95Y Standard Load in the rear (The rears are not available in Extra Load in my area so I had to settle for Standard Load, but as far as I know it is OK to mix Extra Load with Standard Load). Pressure is 32psi for the fronts and 35psi for the rears, as specified on the car door label. |
06-07-2016, 02:06 PM | #3 |
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Much better grip than the Bridgestone S001 RFT they replaced. As any Michelin, they squeal at the limit.
What is the outside temperature? Also, give them more brake-in time. |
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06-07-2016, 03:29 PM | #4 | ||
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Just came back from a HPDE @ NJ Motorsports Park and I will say they have plenty of grip for a novice to intermediate run group even with a 2014 335i M Sport RWD. I don't see how they wouldn't have enough grip for a 320i on acceleration... |
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06-07-2016, 04:58 PM | #5 |
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This has me puzzled as well. I just dont see a 320i breaking 255's loose. What the hell is the outside air temp lol.
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06-07-2016, 05:52 PM | #6 | |
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But I cannot fathom how the MPSS does not have enough grip for a 320i. BMW seems to think it's sufficient for an M3/M4... |
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06-07-2016, 07:46 PM | #7 |
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I call bs. This makes no sense. What tire pressure are you running?
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06-07-2016, 08:13 PM | #8 |
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You are definitely the minority here, are the tires cold when this is happening because they become extremely sticky when hot
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06-07-2016, 09:19 PM | #9 |
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Thanks for the input everyone.
Outside temperature is absolutely not an issue as it's quite high actually, 25 to 30 degrees Celsius (77 to 86 Fahrenheit). Tire pressure is 32psi for the fronts and 35psi for the rears, as specified on the car door label. As I mentioned I have lowered the rears temperature to 32psi but I haven't seen any change in performance. I don't want to give the impression that the spin I am experiencing is happening each and every time I am accelerating, but it does happen quite often at rather low speeds. As some of you pointed out, it is strange that it is happening on a 320i while the mpss is meant for much higher torque cars such as M3/M4s. However there have been reports of similar lack of grip from some people (on various cars) around the web while others have praised the mpss for quite the opposite. It's quite puzzling actually. |
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06-07-2016, 09:42 PM | #10 | |
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I have Super Sports on my F31 and am very pleased with them. Their wet and dry grip is impressive. I have xDrive (I wish I did not), so that may not be a fair comparison. I find the compromise of comfort, grip and noise to be almost perfect for me.
I had a 135i and regardless of the tires (I had the Bridgestones, the Yokohama Advans) the characteristics of the turbo engine would break the wheels loose all the time. Question is how is the grip and feedback in the corners? If you are getting good lateral grip, the answer is to ease off on the throttle. I have Pilot Stort Cup 2s on my 1M and while cold they are a little stiff and have a tendency of being sliding a bit, once warm they are very sticky. I find P-Zeros to be grippier when cool, but then the characteristics of the tires become less than ideal which cuts down on their useable life quite a bit. I used to get a lot of cupping on the fronts on my 993. I wonder if it might be something to do with mixing XL tires, although according to this the XL tires should add better grip, generally the pressure ratings for the XL tires are higher. TireRack says; Quote:
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06-07-2016, 09:46 PM | #11 |
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Don't feed this OP troll who with his first post has a he balls to call out the best street tires ever made.
These tires may as well be bubble gum to my BMW and there is even a set on one of the family 911s. The others have Super Cups for track duty.
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06-07-2016, 10:06 PM | #12 | |
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06-07-2016, 10:18 PM | #13 |
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Farthest away from being a troll. Just seeking a convincing explanation to my situation.
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06-08-2016, 03:08 AM | #14 |
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06-08-2016, 05:39 AM | #15 | |
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So, you tell us how this looks? You're trying to get a reaction; that's fine, but when comedy is used here, it's usually explicitly stated. The MPSS are too much tire for your car; period. They're actually too much for my 428i, but I like them and I could afford it, so I got them. I've run Michelin sport tires on my cars for the past 15 years, many times in much more powerful cars; through all of these tires, grip has never been even a hint of an issue on the street.
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06-08-2016, 08:57 AM | #16 |
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Cheer up guys, what's with all the negativity? lol
I am merely seeking the comments of people who may have faced the same situation or may have an explanation for it. Nothing in my post suggests "picking" on the Michelin PSS tires nor offending anyone who has them on his car. A number of people around the web also claimed some lack of grip, so it looks like the issue exists for other people as well. Just because you're not one of those people doesn't mean those people are trolling. |
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06-08-2016, 09:04 AM | #17 |
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Tirerack have confirmed that mixing XL and SL tires would not have any effect on the grip.
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06-08-2016, 09:17 AM | #18 | |
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Also, did you look under the hood. Maybe BMW stuck an M3 S55 motor in there by accident. |
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06-08-2016, 10:17 AM | #19 | |
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06-16-2016, 03:45 AM | #21 |
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Seriously, wtf is wrong with u guys? What, u can´t come in new and start a thread where u complain about something based on your own experience? Pulling the troll-card out of your asses on anything that sounds deviating from the common sensus?? Fuck me..
Sounds very strange in my ears as well, I´ve had the super sports for some years now and will probably continue to get them till a better tire comes up. Grip has never been an issue, except when they´re still cold. But so what, is there not the slightest possibility that he just got a bad batch of tires? Is Michelin your grand daddies company and is that why you react like someone cursed your mothers for even implying something is wrong with the product?? Jesus christ take it easy guys... OP, welcome to the forum..
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06-16-2016, 01:07 PM | #22 |
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I think I might know what you're talking about. And I doubt it's the tires. If you are gassing it through a corner at decent speed you you could be feeling the stability and traction aids at work braking the inside wheel. In all honesty it feels weird but maybe that's all your feeling.
And if you are doing hard launches in general any tire could rip loose with a torquey engine.
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