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Tire PSI for Pirelli slicks?

Old 11-05-2018, 05:31 AM
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C.J. Ichiban
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that's wild. my cup car was garbage on the yokohama slicks after 3 HC. cant imagine getting 8 useful cycles out of one set of slicks.

what others have said about first laps plus this-

do not hit any curbs on your outlap. you can really damage a rim
Old 11-05-2018, 11:39 AM
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Originally Posted by C.J. Ichiban
that's wild. my cup car was garbage on the yokohama slicks after 3 HC. cant imagine getting 8 useful cycles out of one set of slicks.

what others have said about first laps plus this-

do not hit any curbs on your outlap. you can really damage a rim
LOL

I can't justify dropping the dollars to only run 3 or 4 cycles and go fresh but ideally that's the way to roll because those first few are ridiculously fun!!!!!

I bought a 996 several years ago that had some used slicks (approx 4 heat cycles). Then drove it for a 3 day event and likely put at least 12 cycles on them. Not much changed or it likely lost about 1 or 2 seconds. Put on fresh hoosiers and wasn't much faster. I could of run those slicks another weekend

This time I decided to just run them until they were getting pretty bad to see just how long you could run a new set. They were at the point of slipping under braking for the first several laps (usually only experience that in the wet). Once they get heat in them they will work but it does take more time and the slip does increase a lot. If I had more camber I think I could have gotten some more out of them. There was just one small section about 2 inches long where the cord was showing.

Going forward I'll shoot for 4 days or 16 cycles. Possibly go with two sets and use one with high cycles to warm up on etc....


Old 11-05-2018, 11:43 AM
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Originally Posted by spiller

Interesting, so in your experience they’re “usable” right down to the carcass? I guess it depends how tolerable of slip angle you are . I’m on my first set of slicks (take offs) with my 996 cup and I plan on running them all the way so I can learn the full scope of what to expect. Might do this a few times before “wasting” a set of green.

Please let us know how many cycles you get. I was impressed or from a economical stand point you get faster laps than hoos and also more cycles so slicks seem like a win win to me. However they are harder on the car/susp.
Old 11-05-2018, 03:00 PM
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Originally Posted by C.J. Ichiban
that's wild. my cup car was garbage on the yokohama slicks after 3 HC. cant imagine getting 8 useful cycles out of one set of slicks.
I guess a set of old Yokos is still better than a set of NT01's

Old 11-05-2018, 04:32 PM
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ngng
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well, now that I have you all..what are you running for NT01s? I've been running 32/34 hot.
Old 11-05-2018, 09:50 PM
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You can get a bunch more than 16 cycles/4days. I can run a new set for 30-35 cycles. Lap times suffer by no more than a second, however your driving style will necessitate some changes. You will notice a little less grip under braking and Your turn in will need to happen earlier.
Old 11-06-2018, 09:15 AM
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Originally Posted by ngng
well, now that I have you all..what are you running for NT01s? I've been running 32/34 hot.
I used to run 32/32 with NT01 on my 996 GT3 and was fastest at these pressures. NT01 do not like any lower than this or the sidewalls start to fold, which is not confidence inspiring.

Originally Posted by Oliver911
You can get a bunch more than 16 cycles/4days. I can run a new set for 30-35 cycles. Lap times suffer by no more than a second, however your driving style will necessitate some changes. You will notice a little less grip under braking and Your turn in will need to happen earlier.
35! Perhaps the length of each cycle also has something to do with it? I would assume longer sessions extracts more life out of the tire...
Old 11-10-2018, 04:29 AM
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35 cycles holy pig ***** there is ZERO chance I'd be interested in whatever that feels like. 7 track days? In a 911?? I would not even have brake pads that lasted that long. Even when I ran my 997.1RS for 40+ track days in a year I was changing pads and fluids and tires every 2-5 track days (tires 2 for slicks, 3 MPSC, fluids every 3-4 days, pads 6-7 track days)

I guess we all have our tolerances but if I want to run an expensive car really fast I'm not going to let my tires stick around that long. That's massively chancing a blowout etc.
Old 11-10-2018, 05:15 PM
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It all depends how fast you are. If you are fast you use the rubber and pads and discs up (aka Ichiban), if not they last ages.

Last edited by MC 968CS; 11-11-2018 at 04:17 PM.
Old 11-12-2018, 10:02 PM
  #25  
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I’m not saying that new tires aren’t faster or don’t have a grip advantage. I’m only saying that an adjustment in driving style can compensate (to an extent) for the lack of grip. Maybe around a second or so on a 2:00 lap. I’m not sure a 25-30min session is a true heat cycle? There is still plenty of tread when I pitch them so it isn’t a safety issue. I spend what I can reasonably justify on my hobby, that’s different for everyone. My only point is slicks can remain useable and fun for a long time, therefore they can be an economical choice especially as a replacement for Hoosiers.

Old 11-13-2018, 12:47 AM
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ngng
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I tried the NT01s 32/34 and liked them. Didn't mount the slicks because my buddy found the only hole in the infield at THill lol.

Managed a 1:59

but, I think I liked the changes from later in the weekend:


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