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Re: Winter Pics (dirty cars)
Gnil:throt:Porker:Getting there, slowly
They look so much better dirty. Best pic of your ride so far, pork.
How do you manage with the Cups on those cold roads ? Lots of little break into a sweat ?
It was relatively warm during the day, around 10°, I was amazed how hard the Cups gripped on greasy surface at these temperatures. Doing a full throttle launch on greasy surface in 1st, 2nd and 3rd was almost zero wheelspin, I'll upload a video shortly.
That said, in the evening the temperature dropped to 3° and it's as if the Cups stop working altogether, zero grip.
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1992 Mercedes-Benz W124 500E / 2008 Porsche 911 GT3 RS (sold) / 2011 Mercedes-Benz C63 AMG Performance / 2014 BMW-Alpina D3 biturbo Touring / 2018 Porsche 911 GT3 Clubsport
Re: Winter Pics (dirty cars)
Cups...under 5-7°C, the compound gets too stiff, thus resulting in very bad traction. Careful with Cups at freezing temps, tires can get tiny micro cracks, which usually aren't dangerous (they usually "disappear" once the tire gets back to normal temps) but if humidity gets into these cracks and temps go freezing again, well... 
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RC (Germany) - Rennteam Editor Porsche 991.2 Carrera GTS Cabriolet (2018), Porsche Cayenne S Diesel (2017), Audi R8 V10 Plus (2016), Mini JCW (2015)
Re: Winter Pics (dirty cars)
Kobalt:Cups are Ok down to -10°C according to Michelin.
I heard minus 6-7°C...for moving cars! Not that the difference to minus 10 is that big. If you keep the car stored, temps need to be even higher.
People need to be careful where they store their sportscars with semi-slicks.
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RC (Germany) - Rennteam Editor Porsche 991.2 Carrera GTS Cabriolet (2018), Porsche Cayenne S Diesel (2017), Audi R8 V10 Plus (2016), Mini JCW (2015)
Re: Winter Pics (dirty cars)
Porker:Gnil:throt:Porker:Getting there, slowly
They look so much better dirty. Best pic of your ride so far, pork.
It was relatively warm during the day, around 10°, I was amazed how hard the Cups gripped on greasy surface at these temperatures. Doing a full throttle launch on greasy surface in 1st, 2nd and 3rd was almost zero wheelspin, I'll upload a video shortly.
That said, in the evening the temperature dropped to 3° and it's as if the Cups stop working altogether, zero grip.
https://www.youtube.com/watch?v=vBCiIAqdvTU
--
1992 Mercedes-Benz W124 500E / 2008 Porsche 911 GT3 RS (sold) / 2011 Mercedes-Benz C63 AMG Performance / 2014 BMW-Alpina D3 biturbo Touring / 2018 Porsche 911 GT3 Clubsport
Re: Winter Pics (dirty cars)
Porker:Porker:Gnil:throt:Porker:Getting there, slowly
They look so much better dirty. Best pic of your ride so far, pork.
It was relatively warm during the day, around 10°, I was amazed how hard the Cups gripped on greasy surface at these temperatures. Doing a full throttle launch on greasy surface in 1st, 2nd and 3rd was almost zero wheelspin, I'll upload a video shortly.
That said, in the evening the temperature dropped to 3° and it's as if the Cups stop working altogether, zero grip.
You little herbert 
..
Sounds great and Olive is looking super sexy, buddy... ..
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throt
"I Have Done It!".
991 GT3 pick up in October 2014.
Rennteam Hairy Chest Advisor.
Re: Winter Pics (dirty cars)
Gnil:Whoopsy:So we doing snow covered now? That's overnight.
SUV in the mountain doesn't count .... 2 variables too much .
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964 Carrera 4 -- 997.2 C2S , -20mm -- 991 GT3 RS
Oh come on, Porsche called them all sports cars 
And this one actually handles quite nicely!
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Re: Winter Pics (dirty cars)
Kobalt:Cups are Ok down to -10°C according to Michelin.
This is interesting. The Pirelli P Zero that I have on the GTS are not advised to be used below 7 degrees Celsius and Pirelli’s warranty, including for cracks, is not valid if one drives with these tires below 7 degrees Celsius. These are not even cup tires, for f... sake.
How can Michelin be so different? Are the frenchies that much better than the italians at making tires?
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2017 991.2 Carrera 4 GTS | GT Silver Metallic - The GT3 Killah!
2013 Audi S3 | Glacier White
Re: Winter Pics (dirty cars)
bluelines:Kobalt:Cups are Ok down to -10°C according to Michelin.
This is interesting. The Pirelli P Zero that I have on the GTS are not advised to be used below 7 degrees Celsius and Pirelli’s warranty, including for cracks, is not valid if one drives with these tires below 7 degrees Celsius. These are not even cup tires, for f... sake.
How can Michelin be so different? Are the frenchies that much better than the italians at making tires?
I guess that the various manufacturers might use different materials for the cord and the rubber compound (of course) and the chemicals used to bind the parts together also differs and have different properties.
Having a tire that is not OK to be driven under 7°C does not feel so good.
Most of my driving is on Nürburgring: It is not unusual to go on track at 2-3°C in the mornings.
Re: Winter Pics (dirty cars)
There is an interesting new review of semi-slicks and UHP tires in the latest Sport Auto issue.
Just as a remark, has nothing to do with that freezing temperature topic.
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RC (Germany) - Rennteam Editor Porsche 991.2 Carrera GTS Cabriolet (2018), Porsche Cayenne S Diesel (2017), Audi R8 V10 Plus (2016), Mini JCW (2015)
Mar 11, 2018 5:49:39 PM
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