Ok i have new Toyo TS1 tires 205-45-ZR-16. I also have a 1995 sentra GXE. On the toyo website it says consult the sticker on the door jam for OEM sized tires but these arent OEM sized and have a much smaller sidewall than the OEM ones so I'm assuming they need a higher pressure. The max rating on the tires says 50PSI but their website says 44PSI Max.
Does anyone know how to calculate or what is the correct pressure in the tires for their size. I know factors include weight of car etc. They read low today so without knowing the exact amount I put in ~35PSI when cold.
Trust the max pressures listed on the sidewall and Toyo over the door jamb sticker if you're using anything but OE tyres (this includes size, brand, and type).
As for the "correct" tyre pressure, there really is none if you don't know exactly what you want to get out of your tyres. I suggest you spend a little time and figure that out first, while running the pressures Himile suggested in the meantime.
PS: I run 39/32 F/R on OE sized Sumitomo HTR-200s on my car, mostly for the balance and overall traction in North Jersey weather.
No, you don't want 40 psi in the rear. More like 30, or even 25. Better wear with same reduction in understeer. 40 psi up front is a good start. I liked 45 psi for its better turn-in.
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Bruce in Houston
'94 Nissan Sentra SE-R w/ $tuff, converting to ITA
'98 Suzuki Bandit 1200S w/ $tuff
'02 Dodge Dakota SLT 4-dr tow beast, stock!
i run 45 all the way around but i have 215/R40
I alway trsut the max PSI, especially with these performance tires...too much or too less will wear your tire incorrectly and make the life of your tire less
MAX PSI IS FOR HAULING MAX LOAD!!! It is not recommended pressure for everyday use. Now, FWD forces one to run rather high pressures, but MAX is MAX, not recommended.
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Bruce in Houston
'94 Nissan Sentra SE-R w/ $tuff, converting to ITA
'98 Suzuki Bandit 1200S w/ $tuff
'02 Dodge Dakota SLT 4-dr tow beast, stock!
Thanks for the heads up. Once I get that guage I'm gonna prolly do around 40 for front and try 34 for the rears to start and see how it is.
When I added air today man the steering wheel turns faster it seems and the ride is also rougher but I don't want it underpressured cuz these tires were pretty expensive.
I always wanted to know this kind of information. I usually run 5psi under max, however recently noticed that my wife's tire are showing wear as if they were over inflated. Wearing on center more than in the sides. Maybe I'll back them down to -10psi rated on tire as max.
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Irons.
96 GXE
93 Black SE. Parting out.
If you're driving a Sentra, I don't think running the same pressures all around is a good idea, at least for daily driving. Remember, our cars are heavily loaded in the front. If you do, either your front tyres will show outer wear from underinflation or your rears will show inside wear from overinflation. And regardless of how strangely your tyres wear, you will get strange, possibly dangerous handling characteristics during inclement weather.
Of course, if you're autocrossing or have made alignment/suspension changes that you have to compensate for it's a different story, but for a stock Sentra with no load in the trunk, I would definately run the fronts higher than the rears.
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