Notices
Racing & Drivers Education Forum
Sponsored by:
Sponsored by:

NT01 - your target pressure?

Thread Tools
 
Search this Thread
 
Old 05-14-2018, 12:48 PM
  #1  
matt33
Rennlist Member
Thread Starter
 
matt33's Avatar
 
Join Date: Oct 2006
Location: San Francisco
Posts: 453
Received 36 Likes on 21 Posts
Default NT01 - your target pressure?

997 GT3 and switching from SC2 to NT01. I liked 32F/34R hot on the SC2.

Have read NT01 preferences of everything from 29/33 hot, to 35/35, to 36/38...

What do you like?

Matty
Old 05-14-2018, 01:02 PM
  #2  
multi21
Addict
Rennlist Member
 
multi21's Avatar
 
Join Date: Jul 2006
Posts: 16,041
Received 2,979 Likes on 1,759 Posts
Default

Max 36-38 hot. Anything over that becomes greasy
Old 05-14-2018, 05:00 PM
  #3  
Hatzenbach
Rennlist Member
 
Hatzenbach's Avatar
 
Join Date: May 2011
Location: San Carlos, CA 94070
Posts: 1,853
Received 461 Likes on 217 Posts
Default

My target pressure is 32 front / 34 rear
i start 8 psi below cold
Old 05-14-2018, 08:39 PM
  #4  
Quadcammer
Race Director
 
Quadcammer's Avatar
 
Join Date: Nov 2006
Location: Clifton, NJ
Posts: 15,630
Received 1,373 Likes on 794 Posts
Default

i shoot for 33 hot, start at roughly 25, depending on how cold it is.
Old 05-15-2018, 12:45 AM
  #5  
rlm328
Rennlist Member
 
rlm328's Avatar
 
Join Date: Aug 2007
Location: Houston, Texas
Posts: 6,305
Received 309 Likes on 206 Posts
Default

Get a tire pyrometer. Like one of these:

http://www.longacreracing.com/produc...with-Clipboard

Take your 3 measurements per tire and figure out your own best pressure for your driving technique.
Old 05-15-2018, 10:19 AM
  #6  
josserman
Instructor
 
josserman's Avatar
 
Join Date: Dec 2008
Location: Ridgefield, CT
Posts: 214
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by rlm328
Get a tire pyrometer. Like one of these:

http://www.longacreracing.com/produc...with-Clipboard

Take your 3 measurements per tire and figure out your own best pressure for your driving technique.
exactly!
Old 05-15-2018, 02:12 PM
  #7  
RallyeChris
Rennlist Member
 
RallyeChris's Avatar
 
Join Date: Oct 2014
Location: Northport, NY
Posts: 865
Received 99 Likes on 62 Posts
Default

On my 3000lb 964, nothing more than 32psi. 30-32psi hot is the magic number for me.
Old 05-16-2018, 01:08 AM
  #8  
sundog
Race Director
 
sundog's Avatar
 
Join Date: Jul 2005
Location: Livermore, CA
Posts: 17,585
Received 197 Likes on 105 Posts
Default

Originally Posted by RallyeChris
On my 3000lb 964, nothing more than 32psi. 30-32psi hot is the magic number for me.
For me it is 32-34. But that is the highest before they get slick.
Old 05-16-2018, 01:16 AM
  #9  
JackOlsen
Race Car
 
JackOlsen's Avatar
 
Join Date: Jun 2001
Location: Los Angeles
Posts: 3,920
Received 62 Likes on 48 Posts
Default

Lower.
Old 05-16-2018, 01:16 AM
  #10  
Spyerx
Rennlist Member
 
Spyerx's Avatar
 
Join Date: Mar 2012
Location: SoCal
Posts: 16,502
Received 1,736 Likes on 1,063 Posts
Default

Originally Posted by Hatzenbach
My target pressure is 32 front / 34 rear
i start 8 psi below cold
This Ive burned through probably 30 sets of these. fronts ~32 rears ~34 HOT right of the track.
Old 05-16-2018, 01:31 AM
  #11  
boostedt0y
Banned
 
boostedt0y's Avatar
 
Join Date: Aug 2010
Location: Bay Area, CA
Posts: 534
Received 79 Likes on 41 Posts
Default

Originally Posted by Spyerx
This Ive burned through probably 30 sets of these. fronts ~32 rears ~34 HOT right of the track.
ive been using 34 f and 36 r hot. I’ll try 32/34 at Sonoma in a few weeks time
Old 05-16-2018, 01:33 AM
  #12  
Spyerx
Rennlist Member
 
Spyerx's Avatar
 
Join Date: Mar 2012
Location: SoCal
Posts: 16,502
Received 1,736 Likes on 1,063 Posts
Default

Originally Posted by boostedt0y
ive been using 34 f and 36 r hot. I’ll try 32/34 at Sonoma in a few weeks time
Some of my track buddies like them a little higher like you but i like them a couple PSI lower. Whatever works for you. The lower pressures just feel more stick and a little more predictive in the rotation. I'm not that fast but fast enough to notice :-)
Old 05-17-2018, 12:59 PM
  #13  
CosmosMpower
Drifting
 
CosmosMpower's Avatar
 
Join Date: May 2012
Location: The Republic
Posts: 2,843
Received 52 Likes on 38 Posts
Default

Not more than 32 hot, start about 6-8 lbs lower cold.
Old 05-19-2018, 01:23 PM
  #14  
Rob996
Pro
 
Rob996's Avatar
 
Join Date: Sep 2009
Location: Northeast
Posts: 512
Received 1 Like on 1 Post
Default

I’ve gone through tons of these NT01’s as well.

Ideal is 31 to 33 front , with 32 to 35 rear.. max hot.

This recipe ensures best grip and performance, along with even wear..

Old 05-19-2018, 01:37 PM
  #15  
PorscheAddict
Rennlist Member
 
PorscheAddict's Avatar
 
Join Date: May 2008
Location: Tennessee
Posts: 1,255
Received 122 Likes on 75 Posts
Default

I assume those of you with streetable camber (-2 or -2.5?) are starting higher and bleeding off to keep from eating the edges on warm up laps? I can't imagine the edges holding up long at ~25 PSI (cold) without some serious camber.


Quick Reply: NT01 - your target pressure?



All times are GMT -3. The time now is 06:14 AM.