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Daily is always 36. It's the best compromise since it's not possible to get the tires really hot driving on the street. The GS F typically sees a 2 psi increase driving around town. Pressures are displayed on the GS F, so there's no question about hot or cold pressures.
If you mean road course, every car and tire are different. You need to do a session and then check the tire wear indicators on each tire individually. You then increase or decrease the PSI to get the wear line right on the indicators. FYI - I run my 08 with coilovers at about 34 cold psi and the wear hits the indicators just fine. But as I said it depends on tire, setup, track, weather, etc.
" You need to do a session and then check the tire wear indicators on each tire individually. "
I would be surprised if a single track session or several would show up on the wear indicators?
" You need to do a session and then check the tire wear indicators on each tire individually. "
I would be surprised if a single track session or several would show up on the wear indicators?
Mine does show up after a session. However, you can always apply chalk on the side of the tire to be sure for a particular session.
The tread wear indicator (TWI) on the sidewall exists for the sole purpose of dialing in the correct tire pressure for the track (or road but less useful). It is usually a small triangle or Michelin Man on the sidewall. Then if the wear line is too high, you are over inflated and vice versa.
Why not be serious on the track (road course, not dragstrip)? Improper tire pressure leads to poor times and poor performance at best and hitting the wall at worse.
I cant find a good article on it though. Just a picture.
Because that's not how you determine tire pressure. Tire pressure is related to tread temperature, and if you're serious, you're looking for a small range of temperature to optimize grip with the rubber compound you are running. At least that's what Michelin says to do with their racing tires. Not sure where you heard about using the sidewall markers, but I wouldn't do it that way at all. FWIW, Yokohama says they're nothing more than an indicator of when to replace the tire: https://www.yokohama-online.com/Tyre...Tyre-Knowledge (scroll to bottom)
The tread wear indicator (TWI) on the sidewall exists for the sole purpose of dialing in the correct tire pressure for the track (or road but less useful). It is usually a small triangle or Michelin Man on the sidewall. Then if the wear line is too high, you are over inflated and vice versa.
Why not be serious on the track (road course, not dragstrip)? Improper tire pressure leads to poor times and poor performance at best and hitting the wall at worse.
I cant find a good article on it though. Just a picture.
im sorry but this is blatantly incorrect. The arrows point to where the tread wear indicators aka. "Wear bars" are located inside the tread itself. You can feel around there in the tread groove and there will be a ridge or "bar", once that bar is flush with the rubber outside the groove, it is time for immediate replacement of the tire.
this is basic drivers ed knowledge.
Last edited by GaaraOTS; 10-05-18 at 05:39 PM.
Reason: Spelling
10-02-18, 10:29 PM
