09-17-2012, 09:02 PM | #67 |
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10-25-2012, 07:53 AM | #69 |
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Guys,
After 9,000 km of proper road use, my PS2s are gone and I want to replace them for the obvious PSSs too. However, here in Dubai, no 265/35 PSS exist, so I'm thinking about the standard size 245/35 PSS front and 275/35 rear. Would that work on a standard car in terms of suspension and rims? Has anybody tried this rather conservative set-up? No rubbing to be expected? Yeah, no changes to mine but the lovely Akrapovic... ;-) Thanks, Tom. |
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10-25-2012, 08:48 AM | #70 | ||
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Hi, PSS are somehow slightly chunkier than equal size most other tires including PS2 so yes compared to stock tires my passenger side front tire actually touches the liner at full lock but I am not able to notice it even at full lock in parking speeds at the steering wheel. So, no need to worry about that. I am stock size at the rear too. PSS has way more grip than PS2 and I felt more comfortable with going stock sizes and am happy with my choice. A 275/35 19 tire is 0.3 inches bigger diameter (taller) compared to stock 265s but there seems to be enough space to clear that at the rear plus it will look better since it will fill the wheel gap almost completely. Unless you put two heavy people at the back of the car and try to pass a speed bump I doubt you will have any rubbing or so. On the other hand, I also doubt there will be any noticeable difference/advantage in terms of traction, handling etc. between 265 or 275 PSS tires. If I go wider at the rear in the future I will try max possible without creating any problems for stock wheels and suspension. That is a 295/30 19 which will fit perfectly and then you have really more tire contacting the road. I am not decided on this yet, happy with stock size PSS set for now. Hope this helps. Oz Quote:
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BMW 1M-SOLD-: TECH: Evolve Race+N55mids, Evolve IC, Michelin PSS, ER cp, aFe filter, CDVx, Vorshlag camber plates, BMS OCC EXTERIOR: trunk spoiler, blacklines, black grills, IND goodies INTERIOR: Alcantara steering wheel, steel pedals, custom mats, MPower e-brake. |
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10-25-2012, 03:37 PM | #71 |
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Hi Tom, hi OZ ! A friend of mine, let's call him "R", runs PSS's on his 1M, front and rears. He's one size more than stock: 255/35/19 and 275/35/19. No rubbing at the rear ! No issues at all, just more grip.
But... I wouldn't recommend increasing the aft size much more, if you don't increase the front size as well. Let us imagine you put 245/35 in front and 295/30 aft. Aft grip is increased, so you get better traction when accelerating. Forward grip is not increased, so you get understeer the rest of the time, altering the balance of the car... So I think it's nice for the looks, but bad for the driving !! Last edited by LotusBoy; 10-25-2012 at 03:49 PM.. Reason: clarification |
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10-25-2012, 06:38 PM | #72 | |
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In fact I am contacting a few 1M and M3 owners who keep the fronts stock while getting wider at the rear like 295s and they all seem to be happy with the result so I may give it a try and if I feel that it is not working, not a big issue for me since I keep the stock PS2 set almost unused, as my reserve and I can use them if and when needed and just sell the wider new rears in the market. Still again, the reason why I am not decided yet on this is simple; I am quite happy with the stock sizes since the added grip of PSS is more than enough for me..for now. In fact, if we go with the book, I could go and try 275/30 19 front and 295/30 19 rear set which would be perfectly proportional upgrade and if 255/35 can fit at the front so should 275/30. I assume there won't be a hint of understeer with that one but will the car react as agile as it is now?
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"The mark of a great car is one whose overall competence exceeds what you should expect from its individual components and the 1M does just that", Chris Harris.
BMW 1M-SOLD-: TECH: Evolve Race+N55mids, Evolve IC, Michelin PSS, ER cp, aFe filter, CDVx, Vorshlag camber plates, BMS OCC EXTERIOR: trunk spoiler, blacklines, black grills, IND goodies INTERIOR: Alcantara steering wheel, steel pedals, custom mats, MPower e-brake. |
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10-26-2012, 01:51 AM | #73 | |
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Hey Oz, LotusBoy,
Thanks for your messages. The main reason that I am considering changing the rears from a 265/35 to a 275/35 is that there are no 265/35 PSSs available in Dubai, it's not a size they're carrying in their catalogue. So, for the upcoming full tire change, it's either: - replace with stock size PS2s (okay, but there's better out there, isn't it?) - replace with PSS 245/35/19 front and 275/35/19 rear - replace with stock size Pilelli P Zeros (not really tempted) - replace with Michelin Pilot Sport Cup+ in stock sizes Am not a fan of moving towards 2xx/30s because of the looks in wheel arches, personally. Nobody said it was easy, right? Cheers, Tom. Quote:
Last edited by TomTom///M; 10-26-2012 at 02:01 AM.. |
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10-26-2012, 02:02 AM | #74 | |
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10-26-2012, 05:26 AM | #75 | |
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10-26-2012, 05:44 AM | #76 | |
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I can get stock size PSS here in the UK or the sizes you mention above, but I'm not sure which to choose.... |
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10-26-2012, 06:59 AM | #77 | |
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PS: this being said, I'd personally choose for stock size, as PSS's are already much more grippy than PS2's. This will also eliminate any rubbing risk at the front: just had "R" on the phone, and he said his 255/35/19 DO RUB slightly in front, with stock wheels. He'll go back to stock size in front: 245/35/19, but considers 285/30/19 aft ... Last edited by LotusBoy; 10-26-2012 at 08:36 AM.. Reason: updated PS |
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10-26-2012, 09:55 AM | #78 |
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I've got 500 miles on a set of stock sized PSS on my 100% stock 1M. It took me 7500 miles to get down to the PS2s wear markers and replaced the set at 8000 miles. That should give u an indication of my driving style.
When going to the new set it was important to me to not decrease tire profile and presumably impacting ride quality and to leave turn-in as direct as possible. Turn-in: Not as direct. I knew going into my decision that the PSS had superior grip at a cost of turn in crispness. Years ago I swapped sticky wider tires on onto one my cars, and lost all the turnin sharpness and feel and gained buckets of grip. Ultimately there was so much squish that street driving become annoying. Defn wanted to avoid this scenario. So stuck with stock width. As a result there is a loss of directness and during turn in there is a tiny transition to actual turning. Once turned the car just friggin hooks and grips. The gain in grip far exceeds the loss in feel. Comfort: Its nicer. Not by massive amounts, but the tires did seem to take a bit of edge off of expansion joints. Glad to have gained a bit of comfort. Looks: Rears look much less stretched than stock. PSS seem to have a more beefy shoulder and blockier fit then PS2. Nice surprise. Fronts still look streched, about same as stock. I am extremely happy with the gain in traction, grip and comfort in dry and wet. Love these tires,... You'lll get plenty of performance with stock sizes. Perhaps a tune and N55 mids will have me rethinking the rear widths.... Good luck with your decisions! |
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10-26-2012, 10:04 AM | #79 | |
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"The mark of a great car is one whose overall competence exceeds what you should expect from its individual components and the 1M does just that", Chris Harris.
BMW 1M-SOLD-: TECH: Evolve Race+N55mids, Evolve IC, Michelin PSS, ER cp, aFe filter, CDVx, Vorshlag camber plates, BMS OCC EXTERIOR: trunk spoiler, blacklines, black grills, IND goodies INTERIOR: Alcantara steering wheel, steel pedals, custom mats, MPower e-brake. |
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10-30-2012, 12:13 AM | #80 | |
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Otherwise, I wouldn't know... haven't even managed to spend time on the track with it.
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10-30-2012, 12:25 AM | #81 | |
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I'll arrange the PSS 245/35/19 at the front and 275/35/19 for the rears as soon as I'm back home... with the current (slick) state of the PS2, I'm sure it'll be great! Will keep you posted!
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10-30-2012, 01:46 PM | #83 |
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11-01-2012, 07:23 AM | #84 |
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Aaaaaaargh! Nobody said it was easy, right... here it goes!
The PSSs that I wanted (245/35 and 275/25) are not recommended by one of the most reputable (motorsport) tyre dealers in Dubai due to radius differences that might give speed and diff sensor issues? I haven't read that on the forum? And 265/35 stock size for the rears is not available in the PSSs in Dubai. I did find Cup+'s in the right sizes. Slightly more expensive, but that doesn't bother me. What are your experiences with these, as compared to the PSSs? This is what I've seen / read as compared to the PSSs: - PSS last a bit longer (doesn't bother me) - PSS are cheaper (same) - Cup+ have even more grip in the dry (me likey) - Cup+ have a lot less grip in the rain (no problem, since it never rains here) I don't use the 1M are a daily driver, so all the driving is fun and spirited. I try to do the occasional track day at Yas or the Autodrome too. Thoughts? 1. Cup+s, just because I can... ;-) 2. PSS in 245/35 and 275/35 3. Back to PS2 OEMs Thanks, Tom.
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11-01-2012, 11:02 AM | #85 | |
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Another thing; where did you even find a 275/25, there are no 25 profile PSS for 275 wide tires, not for 18 or 19 inches. Why would you even want that kind of tire at the back? Since this is just a fun car for you and never rains over there, just try the track tires imo.
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"The mark of a great car is one whose overall competence exceeds what you should expect from its individual components and the 1M does just that", Chris Harris.
BMW 1M-SOLD-: TECH: Evolve Race+N55mids, Evolve IC, Michelin PSS, ER cp, aFe filter, CDVx, Vorshlag camber plates, BMS OCC EXTERIOR: trunk spoiler, blacklines, black grills, IND goodies INTERIOR: Alcantara steering wheel, steel pedals, custom mats, MPower e-brake. Last edited by ozinaldo; 11-01-2012 at 11:08 AM.. |
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11-01-2012, 04:15 PM | #86 | |
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11-01-2012, 06:12 PM | #87 | |
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Lots of guys here are with 275 to even 315 rears on stock wheels with 0 issues. So, if you want them ignore that guy and just buy the PSS. Otherwise, just try the track tires since you don't care the downsides of those in Dubai conditions.
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"The mark of a great car is one whose overall competence exceeds what you should expect from its individual components and the 1M does just that", Chris Harris.
BMW 1M-SOLD-: TECH: Evolve Race+N55mids, Evolve IC, Michelin PSS, ER cp, aFe filter, CDVx, Vorshlag camber plates, BMS OCC EXTERIOR: trunk spoiler, blacklines, black grills, IND goodies INTERIOR: Alcantara steering wheel, steel pedals, custom mats, MPower e-brake. |
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11-01-2012, 07:09 PM | #88 | |
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I already got the feeling my 'reputable' tire guy was slighly stronger commercially (because he only had the Cup-tires available) than mechanically and you certainly confirmed the latter. I'll go for the PSSs, since (virtually) everybody out here loves them. Will get them fitted on Saturday, will let you know!
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