What a difference tyres make

[curley]

Changed the tyres on my 981 BGTS today .

Ditched the Pirellis ( part worn ) and went for some Goodyear Eagle F! asymmetric 2 . (20inch )

What can i say , less crashing , more compliant over broken tarmac ( i have X73 suspension ) less front wheel hopping when reversing on full lock .

So far well pleased .

[gadgit]

When you say crashing!

Does this come only or mainly from the rear, and on rough country roads?
You may see that I have a post on my rear suspension effectively crashing, so I asumme this could be linked to the tyres on my car being of poor quality or not up to a good standard. They came with the car.

Gadgit

[curley]

It was more a figure of speech .

The Pirellis were very hard with stiff sidewalls and tread blocks , no compliancy so it crashed around on uneven tarmac .The Goodyear seems to have a softer sidewall .

If you have a mechanical noise you have a different issue .

[Hugo911]

Would be good if you can elaborate on the term "crashing". I agree the Pirellis are a bit of a hard ride and I have some issues around a rattling noise in my car when going over imperfections in the roads. I'm convinced it's something inside the car and not just the tyres coming into contact with the road.

[gadgit]

Yes, mine appears to be underneath the rear boot area, and more of a bonk now and again over relatively uneven ground rather than a crash.
Its as if something was in the boot just bumping about a bit.
Its not bad, and there is nothing to be heard on nice roads at all.
Perhaps I will pull the rear wheels off and check around for anything loose.

Gadgit

[39sl]

gadgit said:

Yes, mine appears to be underneath the rear boot area, and more of a bonk now and again over relatively uneven ground rather than a crash.
Its as if something was in the boot just bumping about a bit.
Its not bad, and there is nothing to be heard on nice roads at all.
Perhaps I will pull the rear wheels off and check around for anything loose.

Gadgit

I've had my 981 CGTS for 3 weeks now and noticed this a few days ago...over my left shoulder when driving I hear a clunk over some surfaces.
Some previous info previously posted that I found but may not be relevant ?

Steve

http://www.pistonheads.com/gassing/topic.asp?t=814...

[PhantomPH]

Has anyone tried the new N1 Pirellis yet? Have they improved the cold 'hopping' and hardening of the tread blocks at all, or are they not really much different?

I notice that the Eagle F1's (which I have had on other cars and LOVED) are N0's and get better ratings for road noise and wet weather performance than the N0 Pirellis, but they are rated much worse for fuel economy.

OP - which ones did yu go for? I have noticed two types of N0 F1a - one with rim protection (whatever that is - I assume slightly more lip on the tyre sidewall) and one without.

Not a big deal I'm sure - just thinking about the options!

[chriscoates81]

PhantomPH said:

Has anyone tried the new N1 Pirellis yet? Have they improved the cold 'hopping' and hardening of the tread blocks at all, or are they not really much different?

I notice that the Eagle F1's (which I have had on other cars and LOVED) are N0's and get better ratings for road noise and wet weather performance than the N0 Pirellis, but they are rated much worse for fuel economy.

OP - which ones did yu go for? I have noticed two types of N0 F1a - one with rim protection (whatever that is - I assume slightly more lip on the tyre sidewall) and one without.

Not a big deal I'm sure - just thinking about the options!

Rim protection normally just sticks out a bit more like you say, my summers have it and my winters dont. With my winters the alloy is practically flush with the tyre so i have to be extra careful.

[HighwayStar]

PhantomPH said:

Has anyone tried the new N1 Pirellis yet? Have they improved the cold 'hopping' and hardening of the tread blocks at all, or are they not really much different?

I notice that the Eagle F1's (which I have had on other cars and LOVED) are N0's and get better ratings for road noise and wet weather performance than the N0 Pirellis, but they are rated much worse for fuel economy.

OP - which ones did yu go for? I have noticed two types of N0 F1a - one with rim protection (whatever that is - I assume slightly more lip on the tyre sidewall) and one without.

Not a big deal I'm sure - just thinking about the options!

With the F1s the wheel sits almost recessed in the tyre. I felt certain I'd damaged my near side from when parking hurriedly to take leek. Checked the wheel afterwards... Nothing. Much relief on both counts.
As well as being a great tyre, it offers great wheel protection.

[Harris_I]

We read a lot on this forum about Michelin, esp SuperSports, and Pirelli P-Zeroes, but IMO Goodyear Eagle Asymmetric are underrated and worth considering.

I have them on two cars, an Integrale and an Audi. The Integrale's ride immediately became more compliant (previously on Nittos) and wet weather grip was much better as expected. The Audi is surprisingly sure-footed on freezing roads. Obviously not as good as winter tyres, but as close as is possible with summer high performance tyres.

[bcr5784]

PhantomPH said:

Has anyone tried the new N1 Pirellis yet? Have they improved the cold 'hopping' and hardening of the tread blocks at all, or are they not really much different?

I notice that the Eagle F1's (which I have had on other cars and LOVED) are N0's and get better ratings for road noise and wet weather performance than the N0 Pirellis, but they are rated much worse for fuel economy.

OP - which ones did yu go for? I have noticed two types of N0 F1a - one with rim protection (whatever that is - I assume slightly more lip on the tyre sidewall) and one without.

Not a big deal I'm sure - just thinking about the options!

I've had N0s and N1s and Eagles on my car. However the Eagles were on my 18" winter rims whereas my Summer Rims are 19s. Firstly N1s are definitely a step forward in progressiveness compared with the N0s, though ultimate grip may be less. They are a bit less prone to cold hopping, but nothing like as good as my winter Dunlops. Ride is little changed but road roar on course surfaces seems a bit less. The Eagles had better steering feel than either and (as you might expect from the reduction in rim size) a better ride. However the car understeered noticably more (which I hate) on the Eagles and felt less precise. Overall I prefer the N1 Pirellis. But, as I say, that is 18 vs 19 so not entirely a fair comparison.

The N1s don't have rim protection as such, however the sidewalls bulge more than the other tyres, so, actually rim protection is the best of the lot.

Personally if you don't actually need them I'd try and wait for N rated Michelins to come out and see what reaction they get - I think July has been mooted.

[Porsche911R]

Michelin are a step on again, my R spins up in the cold with goodyears on in 2nd. My Michelin grip and go.

I am prob one of the 1st few people to have the PS4S on a Porker and they are amazing.

Goodyears were a fun tyre and miles better than the P zero, it's about the 1st time I have not just thrown away a set of tyres and actually used my Goodyears, but once the PS4S was out I had to have them.

Michelin make the best tyres by a big margin, the MPSS were untouchable and just when others were getting close, the PS4S moved the game on again.
They feel far better than the picture shows imo.

[PhantomPH]

bcr5784 said:

Personally if you don't actually need them I'd try and wait for N rated Michelins to come out and see what reaction they get - I think July has been mooted.

Are Mich releasing a new tyre, or is that the one that the poster above is talking about?

I don't need tyres yet by any stretch, but would consider a change before it was 'needed' if it improved aspects of my drive.

[Trev450]

Mr D is referring to the new Pilot Sport 4S.

[curley]

Porsche911R said:

Michelin are a step on again, my R spins up in the cold with goodyears on in 2nd. My Michelin grip and go.

I am prob one of the 1st few people to have the PS4S on a Porker and they are amazing.

Goodyears were a fun tyre and miles better than the P zero, it's about the 1st time I have not just thrown away a set of tyres and actually used my Goodyears, but once the PS4S was out I had to have them.

Michelin make the best tyres by a big margin, the MPSS were untouchable and just when others were getting close, the PS4S moved the game on again.
They feel far better than the picture shows imo.

Trouble with the PS4S is that they are not N rated at the moment and I needed N rated .
The graphs are for a comparison with Assymetric 3 , the Porsche fitment in 20 inch is asymmetric 2 ,a different tyre .

Might have gone for the PS4S if it was on the available option list .

[bcr5784]

Trev450 said:

Mr D is referring to the new Pilot Sport 4S.

As am I - but it remains to be seen if the N rated tyre is the same as the non N rated one. It looks damn good but I'd want to know about steering feel, progressiveness, ride and road noise before jumping. Outright grip isn't the B all and end all, particularly as the 981 has so (too?) much already.

[Porsche911R]

curley said:

Trouble with the PS4S is that they are not N rated at the moment and I needed N rated .
The graphs are for a comparison with Assymetric 3 , the Porsche fitment in 20 inch is asymmetric 2 ,a different tyre .

Might have gone for the PS4S if it was on the available option list .

I would not even dream of fitting N spec on the older cars, the asymmetric 2 is so out dated.
I guess the N rated thing does seem to make some people fit them.

[Porsche911R]

bcr5784 said:

As am I - but it remains to be seen if the N rated tyre is the same as the non N rated one. It looks damn good but I'd want to know about steering feel, progressiveness, ride and road noise before jumping. Outright grip isn't the B all and end all, particularly as the 981 has so (too?) much already.

steering feel, progressiveness, ride and road noise before jumping, all better.
No other tyre comes close. As for N spec well, that's your choice of 10 year old designs.

[PhantomPH]

Ok, a question that's probably been asked a million times then - WTF is N spec and why is it important for Porsche to have them on a CGTS?

[HighwayStar]

N spec are coming but doesn't say when and, there's a caveat...
http://www.tyrereviews.co.uk/Article/What-is-happe...