Track Tires for the 991 GT3?
09-05-2013, 09:23 AM
#16
To Clarify, NT05s are a drag radial, NOT for track use. NT01 are for track use, NOT as good for the strip.
Good to know the NT01s can be flipped. Unfortunately, NT01s are only available in 285/35 for 20 inch sizing. I had some issues moving down to 19's on my 991C4S due to the lower control arms in rear. Might be difficult to find centerlocks that clear the rear arms initially but I have not researched this enough yet.
09-05-2013, 09:59 AM
#17
Nordschleife Master
To Clarify, NT05s are a drag radial, NOT for track use. NT01 are for track use, NOT as good for the strip.
Good to know the NT01s can be flipped. Unfortunately, NT01s are only available in 285/35 for 20 inch sizing. I had some issues moving down to 19's on my 991C4S due to the lower control arms in rear. Might be difficult to find centerlocks that clear the rear arms initially but I have not researched this enough yet.
Good to know the NT01s can be flipped. Unfortunately, NT01s are only available in 285/35 for 20 inch sizing. I had some issues moving down to 19's on my 991C4S due to the lower control arms in rear. Might be difficult to find centerlocks that clear the rear arms initially but I have not researched this enough yet.
09-05-2013, 11:14 AM
#18
Nordschleife Master
09-05-2013, 11:32 AM
#19
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I haven't liked MPSS on the track. The grip just isn't there compared to R-comps. But the tire can withstand hard track use, and is good in the rain. A fairly ideal summer street tire, or 'slow' track tire.
09-05-2013, 01:03 PM
#22
Three Wheelin'
+1 The Nitto NT-05 is a great street tire that can handle hard track use with great longevity. I use NT-05s as my street tire on the GT3 and when a track day forecast is rain I run the NT-05s. I like them.
09-05-2013, 08:06 PM
#23
Oops my bad. I was assuming r comp comparisons. I had the trofeo r 20s on my c4s for a short stint; about 4 track days and 1000 miles of DD with about 50% tread left. But one of the tires received a nice rock puncture. Made no sense to patch or replace just one tire. Great track tire. Moderate street performance. Very pricey. Nothing beats Hoosiers period and I hope I can find some 19s to try the A6s.
09-12-2013, 05:35 PM
#25
Rennlist Member
I don't know what kind of driver or suspension setup the guy with -3 camber has, I only know outer edges are wearing per heresay.
These are my NT01s with -2.0 camber.
Rear tire:
Front tire:
I'm going to bump up to -2.4, but I know they will still wear on the outer edge with -2.4. This is on stock sway bars.
These are my NT01s with -2.0 camber.
Rear tire:
Front tire:
I'm going to bump up to -2.4, but I know they will still wear on the outer edge with -2.4. This is on stock sway bars.
09-12-2013, 05:36 PM
#26
Rennlist Member
I don't know what kind of driver or suspension setup the guy with -3 camber has, I only know outer edges are wearing per heresay.
These are my NT01s with -2.0 camber.
Rear tire:
Front tire:
I'm going to bump up to -2.4, but I know they will still wear on the outer edge with -2.4. This is on stock sway bars.
These are my NT01s with -2.0 camber.
Rear tire:
Front tire:
I'm going to bump up to -2.4, but I know they will still wear on the outer edge with -2.4. This is on stock sway bars.
I seen this on every street and race car I have driven.
09-12-2013, 06:02 PM
#27
Nordschleife Master
. 
09-12-2013, 08:22 PM
#28
Rennlist Member
09-13-2013, 09:55 AM
#29
Former Vendor
Hasn't it almost always been the case that once car makers create a demand by increasing wheel sizes, tire companies follow with appropriate tires? When my 3.2 Carrera came out with 16's, nobody had heard of 17's, 18's and 19's in track tires. Now everybody makes them.
With Porsche and other brands using 20's, we'll soon see a much bigger selection of tires in that diameter.
With Porsche and other brands using 20's, we'll soon see a much bigger selection of tires in that diameter.
09-13-2013, 02:59 PM
#30
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One would certainly hope that is the case, but it does not always work out that way. There were many holes in 997 sizing (particularly race and soft compound street) that were never filled by the big names simply because Porsche owners were the only market for the size. While they do represent a decent market segment, alone they are not enough to warrant the cost of development for the size. I don't suspect that we will see much movement (at least initially) on the newer 20" sizing in race compounds. I do hope the big brands acknowledge the need for the sizing and act accordingly for the new cars.
