04-07-2024, 02:44 AM
Putted your pressures in my made calculator.
Assumed cold pressures at 50 degr F measured.
Then 122 psi going to 146 psi gives/ 139 degr F dry and 131 degr F wet( so enaugh water in tire coming in by humidity.
110 psi going to 120 psi / 90 degr F
100 psi going to 108psi / 85 degr F.
Rounded it all a bit, howmuch humidity in tire makes a little difference
And because all tires drove in same conditions and same speed, this can mean 2 things.
Front some hanging barings or brakes.
Or the uses tirepressures are out of balance, and front needs higher cold pressure, wich most think is not allowed, but 10 psi extra is given on Continental groop tires in Europe, the 120 psi is not the maximum allowed cold pressure, but the reference-pressure. For reference-pressure and - speed the tiremakers calculate the maxload of tire.
Personscartires only give max allowed cold pressire on sidewall of between 44 psi and 51 psi and an ocacional XL 60 psi. The reference-pressure though is standard load 36 psi (EUR) or 35 psi (US) and XL 42 psi (EUR) or 41 psi (US).
But better would be, to put tag suspensionpressure lower, so more weight shifts to drive axle, and less on front and tag. Then the needed tirepressures should be reviewed. But reviewing is needed anyway because if the temoerature in tire differences.
If you find some writing errors, its because I all write it on mobile phone, wich askes much of fine motorics.
.
Assumed cold pressures at 50 degr F measured.
Then 122 psi going to 146 psi gives/ 139 degr F dry and 131 degr F wet( so enaugh water in tire coming in by humidity.
110 psi going to 120 psi / 90 degr F
100 psi going to 108psi / 85 degr F.
Rounded it all a bit, howmuch humidity in tire makes a little difference
And because all tires drove in same conditions and same speed, this can mean 2 things.
Front some hanging barings or brakes.
Or the uses tirepressures are out of balance, and front needs higher cold pressure, wich most think is not allowed, but 10 psi extra is given on Continental groop tires in Europe, the 120 psi is not the maximum allowed cold pressure, but the reference-pressure. For reference-pressure and - speed the tiremakers calculate the maxload of tire.
Personscartires only give max allowed cold pressire on sidewall of between 44 psi and 51 psi and an ocacional XL 60 psi. The reference-pressure though is standard load 36 psi (EUR) or 35 psi (US) and XL 42 psi (EUR) or 41 psi (US).
But better would be, to put tag suspensionpressure lower, so more weight shifts to drive axle, and less on front and tag. Then the needed tirepressures should be reviewed. But reviewing is needed anyway because if the temoerature in tire differences.
If you find some writing errors, its because I all write it on mobile phone, wich askes much of fine motorics.
.