S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

Can everyone tells me what tire pressure you use on the track?

Thread Tools
 
Search this Thread
 
Old 03-19-2003, 02:24 AM
  #1  
New Member
Thread Starter
 
JMS4's Avatar
 
Join Date: Oct 2001
Posts: 139
Likes: 0
Received 0 Likes on 0 Posts
Default

Can everyone tells me what tire pressure you use on the track?
Old 03-19-2003, 03:45 AM
  #2  
Elder Member
 
George @ BostonAudi's Avatar
 
Join Date: Mar 2000
Posts: 15,742
Likes: 0
Received 0 Likes on 0 Posts
Default I try to keep them around 45psi hot...

Starting pressure depends on track and weather. On rainy days, I might start at 38psi... on hot days on real high speed tracks, I will start as low as 32psi cold.
Old 03-19-2003, 03:50 AM
  #3  
AudiWorld Super User
 
Ray Khan's Avatar
 
Join Date: Apr 2000
Location: Melrose, MA
Posts: 20,299
Likes: 0
Received 1 Like on 1 Post
Default you run even pressure F and R?

even with a 19mm rear sway bar on stiff and higher rear spring rate I like running about 2 psi higher in the rear tires.
Old 03-19-2003, 05:54 AM
  #4  
Elder Member
 
George @ BostonAudi's Avatar
 
Join Date: Mar 2000
Posts: 15,742
Likes: 0
Received 0 Likes on 0 Posts
Default Well the goal is even pressure when hot...

Realistically, at the Glen for example I run 32 front 36-38R... but at the start of the day I start with them even and adjust between sessions.
Old 03-19-2003, 06:15 AM
  #5  
LCP
AudiWorld Expert
 
LCP's Avatar
 
Join Date: Mar 2000
Posts: 26,551
Likes: 0
Received 1 Like on 1 Post
Default Not with R-compunds, right?

Those pressures are, like, 5-10psi too high for R-compound tires.
Old 03-19-2003, 06:27 AM
  #6  
Elder Member
 
George @ BostonAudi's Avatar
 
Join Date: Mar 2000
Posts: 15,742
Likes: 0
Received 0 Likes on 0 Posts
Default

No, S02's... I don't have the cash for an extra set of wheels!
Old 03-19-2003, 08:23 AM
  #7  
Senior Member
 
Sharon's Avatar
 
Join Date: Mar 2000
Posts: 5,844
Likes: 0
Received 0 Likes on 0 Posts
Default

depends on the r-compounds and other factors ... we run Hoosiers at 42-47psi
Old 03-19-2003, 08:25 AM
  #8  
LCP
AudiWorld Expert
 
LCP's Avatar
 
Join Date: Mar 2000
Posts: 26,551
Likes: 0
Received 1 Like on 1 Post
Default On the real track, or autocross?

I doubt too many would run them at the upper end of that range on a long roadcourse.
Old 03-19-2003, 08:41 AM
  #9  
Senior Member
 
Sharon's Avatar
 
Join Date: Mar 2000
Posts: 5,844
Likes: 0
Received 0 Likes on 0 Posts
Default slightly different ranges, but still 42+

We'll go more on the edge for autox, and certainly more rear bias in autox, but the Hoosier wants a lot of air, beyond what's stamped on the side of the tire (we exceed the weight ratings on the front too). We called their support guys on this once, and they said it's not ideal, but not all that unusual. They certainly didn't seem that concerned or expect that we'd be more likely to blow tires this way.
Old 03-19-2003, 01:33 PM
  #10  
AudiWorld Super User
 
Ray Khan's Avatar
 
Join Date: Apr 2000
Location: Melrose, MA
Posts: 20,299
Likes: 0
Received 1 Like on 1 Post
Default I like a tiny bit more in the rear tires to help the rear end come around

at least for autoX...haven't done a real track event yet.


Quick Reply: Can everyone tells me what tire pressure you use on the track?



All times are GMT -8. The time now is 10:23 AM.