Tire pressure for Track Days
08 February 2009, 12:10 AM
#1
Scooby Newbie
Thread Starter
Join Date: Jan 2009
Location: Curitiba, Brazil
Posts: 9
Likes: 0
Received 0 Likes
on
0 Posts
Tire pressure for Track Days
I was wondering what pressure you guys run on your S-tires when racing your cars on track events? What pressure (F/R) makes the car understeer less?
thanks!
thanks!
08 February 2009, 11:16 AM
#2
Scooby Senior
iTrader: (3)
Join Date: Jun 2006
Location: Slowly rebuilding the kit of bits into a car...
Posts: 14,333
Likes: 0
Received 0 Likes
on
0 Posts
Geometry alters understeer, tyre pressures are a fine adjustment, harder pressures = less give in the sidewalls, I use +6 psi at both ends. Mainly to reduce the tyre flopping off the rim under heavy load. The reduced grip means a longer lifespan.
imho
dunx
imho
dunx
08 February 2009, 07:55 PM
#4
Scooby Newbie
Thread Starter
Join Date: Jan 2009
Location: Curitiba, Brazil
Posts: 9
Likes: 0
Received 0 Likes
on
0 Posts
Subaru used to recommend 33psi on the front and 32 on the rear for classic WRX's, but that's for normal tires... The the people at Whiteline did some testing and foud out that with 37 psi in the front tyres and 32 psi in the rears, turn-in was a lot sharper and there was less understeer... But again, that's with normal tires (Toyo Proxis, I think)...
You guys recon the same would happen with S-Tires?
You guys recon the same would happen with S-Tires?
Trending Topics
09 February 2009, 04:56 PM
#9
Scooby Senior
iTrader: (3)
Join Date: Jun 2006
Location: Slowly rebuilding the kit of bits into a car...
Posts: 14,333
Likes: 0
Received 0 Likes
on
0 Posts
No problem, it's cold most of the time over here !
You may want to run them up to temp and then reset the pressure.
HTH
dunx
You may want to run them up to temp and then reset the pressure.
HTH
dunx
Thread
Thread Starter
Forum
Replies
Last Post
Sam Witwicky
Engine Management and ECU Remapping
17
13 November 2015 10:49 AM