tire pressure
#1
tire pressure
Just looking for opinions on what ppl set there tire pressure at. I do some highway driving and alot of around town driving. Right now I have them set at 29/35psi cold. Once warm usually rise to 32-33/38-39psi. Sound about right?
#2
I leave mine at factory settings and monitor the TPMS for correct pressures when cold. All the effort going into changing them for driving other than tracking is not what I want to do. Even if I'm going to do some spirited driving on the back roads, I just leave them as is.
#3
Factory setting for half load - 34/40.
#6
Kurtis,
I tried 29 and 35 because I felt my tires were getting too loud, and I noticed a bit more tire wear. Now I like 33 and 39 (1 psi below 997.1S recommended* partially loaded pressures) as a good balance of noise, handling, and tire wear. I am running Pirelli P-Zeros, 235/25-19 F, 295/30-19 R.
* Correction: For future reference, the 997.1 owner's manual states that the recommended partially loaded pressures are indeed 33 psi Front and 39 psi Rear. The 997.2 owner's manual states that the recommended partially loaded pressures are 34 psi Front and 40 psi Rear. In my case, recommended 997.1 pressures were ideal (not 1 psi below recommended, as I stated above).
I tried 29 and 35 because I felt my tires were getting too loud, and I noticed a bit more tire wear. Now I like 33 and 39 (1 psi below 997.1S recommended* partially loaded pressures) as a good balance of noise, handling, and tire wear. I am running Pirelli P-Zeros, 235/25-19 F, 295/30-19 R.
* Correction: For future reference, the 997.1 owner's manual states that the recommended partially loaded pressures are indeed 33 psi Front and 39 psi Rear. The 997.2 owner's manual states that the recommended partially loaded pressures are 34 psi Front and 40 psi Rear. In my case, recommended 997.1 pressures were ideal (not 1 psi below recommended, as I stated above).
Last edited by PSPorsche; 04-02-2013 at 02:37 PM. Reason: Correction of information
#7
Kurtis,
I tried 29 and 35 because I felt my tires were getting too loud, and I noticed a bit more tire wear. Now I like 33 and 39 (1 psi below 997.1S recommended partially loaded pressures) as a good balance of noise, handling, and tire wear. I am running Pirelli P-Zeros, 235/25-19 F, 295/30-19 R.
I tried 29 and 35 because I felt my tires were getting too loud, and I noticed a bit more tire wear. Now I like 33 and 39 (1 psi below 997.1S recommended partially loaded pressures) as a good balance of noise, handling, and tire wear. I am running Pirelli P-Zeros, 235/25-19 F, 295/30-19 R.
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#8
Michelin recommends 36/44 for the PS2 on a 997. 29/35 is definitely underinflated. You would risk wheel damage if you hit any sharp bumps or holes, and wear would be uneven.
Fill with nitrogen to keep pressures more stable.
Fill with nitrogen to keep pressures more stable.
#13
I agree that 29/35 is under inflated, although I think Porsche has a "comfort" recommended pressure for the 991 of 29/32. How the times have changed. Who would have thought that Porsche would make a 911 with a tire pressure setting of "comfort."
Last edited by GS997S; 03-26-2013 at 11:57 AM.
#15
I had a similar thread about this very same question, and I found that 33/39 is the best setting for me. I went out and bought a $40 tire pressure gauge, and it makes a difference! There is a huge disparity between the lower quality gauges and the good one. The tpc evens out after some good highway driving, but it reads off when I first start driving and up until I get good highway driving in for a bit. Having it measured even, and cold at that setting gives me great comfort. I'll increase it if I ever have need to increase my weight load, but I can't see why I would.