GT2 RS N2 spec MPSC2's?
01-14-2018, 08:33 PM
#1
Rennlist Member
Thread Starter
GT2 RS N2 spec MPSC2's?
I was just searching Tire Rack for OE tires on my RS and a new N2 spec MPSC2 showed up. It says it's GT2 RS spec. Anyone know anything about the new tire? Is this the improved compound that's gone on the .2 GT3 and likely .2 RS?
01-16-2018, 02:24 PM
#3
Just ordered a set for my 991.1RS and will be driving it in March at Portimao. Hopefully will be able to report positives then :-)
01-16-2018, 07:49 PM
#4
Race Director
Im running the MPSC N0 tire for the track...and the N1 tire is out...now the N2 tire. Anyone know all the differences...??? Are they improvements for grip of the track and harder rubber for better wear on the street?
01-17-2018, 04:12 AM
#5
01-17-2018, 08:42 AM
#6
Race Director
I have run both N1 and N0, and to tell you the truth I could not tell a real difference between them. Laptimes in both were very equal (taken at Spa and Zandvoort) and left rear wear was equally abysmal (with chunks flying off the outside wall after two days on track). I think an amateur would have to drive them back to back to notice a difference.
So wondering if some are underinflating the mpsc2 and/or over driving it?
01-17-2018, 10:59 AM
#7
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01-17-2018, 01:36 PM
#9
Rennlist Member
Thanks for the reply! I’ve seen photos of the chunking on outside edge of rears with mpsc2. Since my 2017 Carrera GTS could only get -1.5 camber I was afraid I was going to tear right through mpsc2 Tires. So I decided to run hot pressures at 34-35 front and 36-38 rear which is what Michelin is recommending. Michelin also said do not go out with cold pressures under 26psi on mpsc2. At Sebring my GTS is on par with track times with most gt3 some faster and RS when driven right is definitely faster buy around 2 or 4 seconds.
So wondering if some are underinflating the mpsc2 and/or over driving it?
So wondering if some are underinflating the mpsc2 and/or over driving it?
That said, there is something weird about the RS tire wear, multiple owners complaining about it, regardless of camber setting.....I wonder if it's due to low cold pressure? Maybe track specific? Such as long-duration, high speed corners where the RWS tire is turning opposite of the front tires? I see your post about tire wear and am flabbergasted on how the GT3/RS needs as much as -3 camber sometimes with no improvement in tire wear.
01-17-2018, 02:46 PM
#10
About 2.3 on the rear and 2.5 front. I think i will dial this back as it does not seem to offer benefits with the car/tyre combination. I have less than 0.2 toe on the rears, but reckon combined with the RWS it's the equivalent of 0.5, which may well cause the cording. So I will probably dial that out too. Will let Manthey have a look and recommend an ideal set-up for primary track use.
Last edited by Mika911; 01-18-2018 at 04:18 AM.
01-17-2018, 11:00 PM
#12
Race Director
My GTS has rear wheel steering... -1.5 camber all 4 corners....running higher pressures than others... 34-35 fronts and 36-38 rear. I did drop down to 33 front 35 rear last session a week ago with no issues.
Im getting great wear
01-18-2018, 04:20 AM
#13
That's a good point. I run mine quite low (29/30 hot), which won't help the wear on outside. Though do not think that causes the chunking.
01-18-2018, 09:34 PM
#14
Race Director
This is the imfo i,learned from calling Michelin and watching the GMP Performance Facebook seminar last Wednesday when they had Michelin engineers in the shop and did a live Q&A session.
hope this helps