996 Tyres
Author
Discussion

Chris Stott

Original Poster:

19,237 posts

225 months

Friday 12th May 2017
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Time for some new rears (again!).

Currently running n rated MPS2's all round (I've always run n rated over the 100k miles I've had the car), but wondering if there's any downside to going a bit lower priced (plenty of life left in the front MPS2's)... road use only.

MPS2 are £440 a pair from Event tyres, but Toyo Proxies T1's are £200 less, and Yoko Advan's £170 less.

Anyone had any experience of these?

JS1500

579 posts

205 months

Sunday 14th May 2017
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I'm intending to go PS4 from KwikFit - £540 a set I think.. Cheaper than N rated PS2...

anonymous-user

82 months

Sunday 14th May 2017
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Centre Gravity recommended putting PS4 on my 996 as they're a newer technology tyre with multi compound - I'm very happy with them.

I'm sure Porsche will be N rating something newer as the PS2 is getting a tad old..

jkh112

23,912 posts

186 months

Monday 15th May 2017
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I presume you are looking at the 265 width rears as the later 285 width rears don't seem to be available in the PS4.

MrJingles705

409 posts

171 months

Monday 15th May 2017
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I've run the Advans; fine in the dry, but awful in the wet. Can't recommend them for road use.

If not the PS2's I'd go for the PS4

Chris Stott

Original Poster:

19,237 posts

225 months

Monday 15th May 2017
quotequote all
MrJingles705 said:
I've run the Advans; fine in the dry, but awful in the wet. Can't recommend them for road use.

If not the PS2's I'd go for the PS4
Thanks... that's the kind of info I was after.

At the moment, I'm either going to go PS4 (265/35 @ c.£350) or PS2 (285/30 @ £420)... I've not run 285's before, but would like to try them (mainly for aesthetic reasons)... I get through 2 sets of rears a year, so if I don't like them I can go back to 265's in 6 months or so.

anonymous-user

82 months

Monday 15th May 2017
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Chris Stott said:
MrJingles705 said:
I've run the Advans; fine in the dry, but awful in the wet. Can't recommend them for road use.

If not the PS2's I'd go for the PS4
Thanks... that's the kind of info I was after.

At the moment, I'm either going to go PS4 (265/35 @ c.£350) or PS2 (285/30 @ £420)... I've not run 285's before, but would like to try them (mainly for aesthetic reasons)... I get through 2 sets of rears a year, so if I don't like them I can go back to 265's in 6 months or so.
Aesthetics maybe, but 285 will over tyre the car at the rear. If you want the car to have more balance, 265s are plenty plenty enough. It'll understeer on the limit anyway unless you've altered the geo.

Chris Stott

Original Poster:

19,237 posts

225 months

Monday 15th May 2017
quotequote all
bgunn said:
Aesthetics maybe, but 285 will over tyre the car at the rear. If you want the car to have more balance, 265s are plenty plenty enough. It'll understeer on the limit anyway unless you've altered the geo.
It's 20mm of extra tyre width (7.5%)... it's not going to change the balance that much.

In any case, it's a road car and a daily driver... I drive it quickly, but I don't drive 'on the limit'... even on 265's, you'd have to be travelling at silly speeds to have the car properly moving around (beyond the grip limit) in the dry in anything above 2nd gear.


anonymous-user

82 months

Monday 15th May 2017
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But why bother? It'll make the car slower, more likely to aquaplane, and the tyres are more expensive.

Fair enough if your motivation is just aesthetic but it'll generally make the car worse for no appreciable benefit as you've acknowledged yourself.

Chris Stott

Original Poster:

19,237 posts

225 months

Monday 15th May 2017
quotequote all
285's were an option on 996's, so I'm not doing anything crazy.

Only potential downside I see is ride quality on 30 profile... like I said, not made my mind up yet, but they'll only be on for 6k miles. If I don't like them I'll go back to 265's.


JS1500

579 posts

205 months

Monday 15th May 2017
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My C4 is currently running 235s at the front and 285s at the rear (PS2). I'm switching to 225s and 265s (PS4) soon.
I'm interested to see if I can feel any difference other than worn out tyres versus new tyres!

MrJingles705

409 posts

171 months

Tuesday 16th May 2017
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anonymous said:
[redacted]
As you say, interesting. The problem I had was in one of two scenarios:
1) Motorways - not quite aquaplanning, but definately borderline (getting light/twitchy). Meant that in medium to heavy rain I was backing right down to HGV speeds.
2) Roundabouts - I found that the rears on these would break loose if I was driving even slightly enthusiastically when there was a light drizzle on.... which would be par the course if the PS2's doing same route/speed in identical(ish) weather didn't manage the same perfectly without drama.

The 2nd one of those is debatable, but the 1st was a real concern and what ultimately convinced me to ditch them and go back to the PS2's.

Will stress again in the dry they were mighty - same can be said about the pirellis as well, very little in it in the dry but wet weather and the rossos just didn't work for me.

MrJingles705

409 posts

171 months

Tuesday 16th May 2017
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No ideas here other than possibly I was given old tryes from a bad batch, or old stock, or something? They were newly fitted, not something I got free with a set of rims wink

possibly different camber settings?

MrJingles705

409 posts

171 months

Tuesday 16th May 2017
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Just another thought.... you said running a narrower tyre? possibly that impacts on aquaplaning (narrow/thin generally more resistant than wider for same given weight, within paramaters, as you end up with a move oval contact patch front to back and hence less water to shift?)*


  • Based on stuff I've read rather than practical testing.

MrJingles705

409 posts

171 months

Tuesday 16th May 2017
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anonymous said:
[redacted]
When I say heavy rain I'm talking proper "fast wipe is barely/not keeping up, would rather park up and wait it out" not "time for the fast wipe/leave some gap for spray". There are very, very few tyres/cars that can carry on at say 70-75mph in that kind of rain for mile after mile without at least a few twitchy moments. So you don't, generally (welll, some people do but they are basically idiots).

On the road, when conditions start to go south, I prefer to be reasonably under the line where tyres. Not just fine, but with a decent margin. For all I know they would have held on most of the time at 65mph, but I'd rather back off a little more and be sure. The fact is I never felt the need to back off any more than 'usual' given the weather conditions with the PS2's, I was adapting and buying myself a little margin, but with the Advan's I dropped in a 5-10mph "margin" precisely because I could feel I was hitting the limits of what was safe.

When it's dry or lightly wet of course like anyone who owns these fine pieces of engineering I like to have a little fun wink And if I'm mixing it up in FF1600 then I wring the neck of the car and I'll take it right to the threshold (ACB10's for the win). But since we both violently agree on their dry handling capabilities..... meh.

This might be an agree to disagree moment I'm afraid.

jkh112

23,912 posts

186 months

Tuesday 16th May 2017
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Chris Stott said:
285's were an option on 996's, so I'm not doing anything crazy.

Only potential downside I see is ride quality on 30 profile... like I said, not made my mind up yet, but they'll only be on for 6k miles. If I don't like them I'll go back to 265's.
The 285 width rears were standard on the 3.6 996 carrera with 18 inch wheels.
I am not sure that your concern over ride quality with a 30 profile on a 285 against the 35 profile on a 265 is that valid as the actual sidewall height on both those is near identical ( otherwise it would alter the gearing). So if the sidewall height is almost the same then I would assume the ride quality would be almost the same.