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Old 01-27-2014, 04:14 PM   #1
Bill Lee/Virginia
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Default Radial Tire Pressure

I recently put 215/65R16 radial tires on my cabriolet. The tire pressure on the side of the tire reads "44 psi maximum". The car steers, drives and rides good at this tire pressure; however, I do not know if this is a good pressure or not for the weight of this car. What do you recommend????
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Old 01-27-2014, 04:23 PM   #2
Jordan
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Default Re: Radial Tire Pressure

I run #30 in my radials.
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Old 01-27-2014, 08:10 PM   #3
Mitch//pa
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Default Re: Radial Tire Pressure

32-35 would be sufficient

44 is max psi rated for that tire. At 44 it will ride hard and wear the center tread
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Old 01-27-2014, 08:36 PM   #4
modelAsteve
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Default Re: Radial Tire Pressure

28-32 depending on ride and temperature
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Old 01-28-2014, 05:08 AM   #5
jadatis
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Default Re: Radial Tire Pressure

Needed tire pressure is all about load on the tire / maximum load of tire.
so even for oldtimers you can weigh or determiine the loads on the tires .
Front and rear probably different because of the weight division.

I kept myself busy with tire pressure calculation, so if you give actual tire loads seperatly , or axle loads.
And from tires maximum load and pressure needed for that ( here max44 is maximum pressure of P-tire/standard load so Pressure needed for maximum load / maxloadpressure/reference-pressure is most likely 35 psi/2.4bar) , I can calculate the lowest save pressure for the tires.
Also a factor is speed , but I think that wont be above 160km/99m/h here .

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Old 01-28-2014, 07:15 AM   #6
Tom Wesenberg
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Default Re: Radial Tire Pressure

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Running a wide tire on a narrow rim will make the center of the tire wear more, so you might try lowering the pressure.
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