Tire difference?
Thread Starter
Rennlist Member
Joined: Dec 2014
Posts: 193
Likes: 6
From: High Altitude Colorado
Tire difference?
Is there any actual difference in the construction of the MICHELIN PILOT SPORT CUP 2 for the GT4 vs. the ones made for the Ferrari beside the price and maybe a stamp/letter on the sidewall?
The price difference is about $350 for a set and the "Ferrari" front tires are in stock while the GT4's have been out of stock for a while?
The price difference is about $350 for a set and the "Ferrari" front tires are in stock while the GT4's have been out of stock for a while?
Addict & Guru
Rennlist Member
Rennlist Member
Joined: May 2001
Posts: 3,897
Likes: 3
From: St. Louis
As has been posted many times, the differences between N spec and non-N spec are not published and remain to be researched, divined, or speculated.
Over many years whenever I've done the research I've found (among the various tire brands and models) differences in load ratings, tread patterns, tire construction, weight, tread width, circumference, tread depth, etc. Sometimes I couldn't find any difference which doesn't mean there weren't any. So exMB is right, there is a high probability of differences. I'm just answering your next question of what are the differences? No one here will know for sure all the differences, or any of them for that matter.
That said, I'm presently on non-N spec MPSS and have no worries, but where there's a choice of N or non-N, I choose the N.
Over many years whenever I've done the research I've found (among the various tire brands and models) differences in load ratings, tread patterns, tire construction, weight, tread width, circumference, tread depth, etc. Sometimes I couldn't find any difference which doesn't mean there weren't any. So exMB is right, there is a high probability of differences. I'm just answering your next question of what are the differences? No one here will know for sure all the differences, or any of them for that matter.
That said, I'm presently on non-N spec MPSS and have no worries, but where there's a choice of N or non-N, I choose the N.
Pro
Joined: Sep 2015
Posts: 588
Likes: 20
I currently have the ferrari specs on my car as I needed a set quick and the porsche spec was out of stock. Thread pattern is the same. Tires fit perfectly. EVERY marking on the tires are 100% the same as far as I could see.
I would be very, very surprised if the tire compound is different at all, or at least to the degree that you can feel anything. I can't feel any difference, or see any difference in lap times either.
One difference that I l really like about the Ferrari spec is that the outer wall construction is slightly different. The tire has a "lip" where it meets the rim that sticks out a bit from the rim that the Porsche spec does not have. What makes this nice is that when you get close to a curb the tire lip will hit the curb first and protect your rim from curb rash. I think it nice.
I would be very, very surprised if the tire compound is different at all, or at least to the degree that you can feel anything. I can't feel any difference, or see any difference in lap times either.
One difference that I l really like about the Ferrari spec is that the outer wall construction is slightly different. The tire has a "lip" where it meets the rim that sticks out a bit from the rim that the Porsche spec does not have. What makes this nice is that when you get close to a curb the tire lip will hit the curb first and protect your rim from curb rash. I think it nice.
Racer
Joined: Mar 2013
Posts: 383
Likes: 1
In the gtr world there was a few people who swore the 295 ferrari spec mpss had a little special sauce to it and seemed to have a little more bite to them. No real data, just how people felt. I had a set as well and they seemed fine?
Rennlist Member
Joined: Mar 2009
Posts: 5,682
Likes: 993
orthojoe posted this in another thread:
"Nope. I've used both N spec and K spec tires on my GT3 and they are not exactly the same.
Sidewall design is different and therefore so is the load rating. N spec has a flat sidewall and the K spec has a 'bumper' flare to protect the rims from curbing
N spec also has a touch more grip, but wears quicker.
K spec tread last longer, but heat cycle out before the tread wears away, so the tread life is of no benefit.
Get N spec"
"Nope. I've used both N spec and K spec tires on my GT3 and they are not exactly the same.
Sidewall design is different and therefore so is the load rating. N spec has a flat sidewall and the K spec has a 'bumper' flare to protect the rims from curbing
N spec also has a touch more grip, but wears quicker.
K spec tread last longer, but heat cycle out before the tread wears away, so the tread life is of no benefit.
Get N spec"
Trending Topics
Nordschleife Master
Joined: Nov 2010
Posts: 7,804
Likes: 193
From: Bay Area
Originally Posted by ShakeNBake
orthojoe posted this in another thread:
"Nope. I've used both N spec and K spec tires on my GT3 and they are not exactly the same.
Sidewall design is different and therefore so is the load rating. N spec has a flat sidewall and the K spec has a 'bumper' flare to protect the rims from curbing
N spec also has a touch more grip, but wears quicker.
K spec tread last longer, but heat cycle out before the tread wears away, so the tread life is of no benefit.
Get N spec"
"Nope. I've used both N spec and K spec tires on my GT3 and they are not exactly the same.
Sidewall design is different and therefore so is the load rating. N spec has a flat sidewall and the K spec has a 'bumper' flare to protect the rims from curbing
N spec also has a touch more grip, but wears quicker.
K spec tread last longer, but heat cycle out before the tread wears away, so the tread life is of no benefit.
Get N spec"
N spec mpsc2 have been the best tire for me.
Tried K spec and didn't like it
Tried trofeoR and didn't like it
I'm going to try dunlops this weekend and will report back
Rennlist Stories
The Best Porsche Posts for Porsche Enthusiasts
9 Features and Characteristics That Only Porsche People Understand
Verdad Gallardo
I've Written 500 Rennlist Articles: Here's How Porsche Has Changed Along the Way
Joe Kucinski
10 Most Unnecessary Porsches Ever Built (And Why We Love Them)
Verdad Gallardo
Porsche 911 GT3 S/C vs 718 Spyder RS: 10 Categories, One Winner
Joe Kucinski
This Builder Is Turning Heads With Its Slantnose 911 Creation
Verdad Gallardo
Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture
Verdad Gallardo
Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look
Verdad Gallardo
10 Porsche Colors That Have More Personality Than Most People
Verdad Gallardo
Guntherwerks' Final Speedster Creation Is the Ultimate Porsche Restomod
Verdad Gallardo
Burning Brakes
Joined: Feb 2014
Posts: 1,221
Likes: 19
From: Vancouver, WA
Is there any actual difference in the construction of the MICHELIN PILOT SPORT CUP 2 for the GT4 vs. the ones made for the Ferrari beside the price and maybe a stamp/letter on the sidewall?
The price difference is about $350 for a set and the "Ferrari" front tires are in stock while the GT4's have been out of stock for a while?
The price difference is about $350 for a set and the "Ferrari" front tires are in stock while the GT4's have been out of stock for a while?