Neil,
The maximum safe pressure for every tire is printed on the sidewall. I think
radials are less prone to low or high pressure wear patterns than bias
tires. Generally, more pressure stiffens the entire tire so it has less side
flex on corners for better handling. Too much pressure makes the ride harsh
and reduces the radial tire's ability to flex into contact with the road.
The best pressure also depends on the tire size vs. vehicle weight. I have
also experienced huge differences in handling between different brands of
tires of the same size and pressure.
Some people like to run at the maximum pressure, but I think that is usually
too high for best performance. And the preferred pressure for original bias
tires is usually not enough for radials. My guess is 35 - 40 psi would be a
good pressure range for our cars.
Dave Homstad
56 Dodges
-----Original Message-----
From: Forward Look Mopar Discussion List
[mailto:L-FORWARDLOOK@xxxxxxxxxxxxx]On Behalf Of eastern sierra Adj Services
Sent: Wednesday, April 11, 2007 12:31 AM
To: L-FORWARDLOOK@xxxxxxxxxxxxx
Subject: [FWDLK] You load 40 LBS; whaddaya get?
I just happened to increase the pressure on my Diamondback radials to 40
PSI , on the front tires; the rears are still at about 34 PSI, and
noticed greatly improved handling & braking response.
Has anyone run a high-air-pressure on their radial tires? Any negative
results?
Back-in-the-day, road testers said they applied
around 36 PSI to the bias ply tires , so, maybe 40 isn't too high. What
WOULD be too high?
Neil Vedder
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