Dumb tire pressure question

[aroostok]

Anybody tell me what tire pressures to run in 175/70 R14's on the 76 B? Tried going by recommendations in one of the manuals I have and appears way too low - I can burn rubber at 10 mph!
Thanks

 

[DrEntropy]

I've always run at 28 front, 32 rear. Higher by a couple pounds now and again but always the four pound differential front-to-rear. It keeps a slight oversteer this way.

This B is an earlier car, so a bit lighter than yours.

 

[Steve_S]

The pressures in the manuals work best for Bias Ply tires. On modern radials you should be running between 27 and 32 PSI. Typically M.G.s handle best with 2 PSI more in the rear than in the front. The wider the tires go, the more equal it seems the pressures can be. I would start with 28/30 and experiment from there.

 

[DrEntropy]

The pressures I posted above are for the 175/70 R14's I've run for years.

 

[kennypinkerton]

I run 30 lbs all around, but I don't do any high performance cornering or anything.

 

[PAUL161]

[ QUOTE ]
Anybody tell me what tire pressures to run in 175/70 R14's on the 76 B? Tried going by recommendations in one of the manuals I have and appears way too low - I can burn rubber at 10 mph!
Thanks

[/ QUOTE ]

You know, that's like asking 15 people if they all like the same ice cream. To me, it depends on the tire and how you intend on driving it. I have Veridestien Quadtracs, 165/70/14s on my 72 and run 28 lbs front and rear. If I wanted to run it a little more aggressively, I would add more air to the rear. But it's real comfortable as is and a pleasure to drive. So that's my flavor. /ubbthreads/images/graemlins/jester.gif PJ

 

[zblu]

use 32 f and 35 r thats cold pressure with a certified gauge, not the local servo one!

 

[danmas]

If you look at a graph of tire grip vs tire pressure, you'll notice that grip goes up pretty fast as you approach the optimum pressure, and falls off rather slowly as you increase pressure beyond the optimum. ie, too much is better than too little, within reason, of course.

Probably the best thing to do is play with pressures until you find what suits you the best.

 

[Rob_P]

[ QUOTE ]
You know, that's like asking 15 people if they all like the same ice cream.

[/ QUOTE ]

yeah, but anyone who doesn't say chocolate should not be trusted....
/ubbthreads/images/graemlins/jester.gif

 

[Steve_S]

There is a perfect pressure to run for every vehicle. But what that pressure is depends on many, many factors including tire construction, tire materials, road surface, road conditions, temperature, driving style, vehicle weight, suspension set up, wheel type, wheel size, desired ride quality, etc, etc, etc. I run 30/30 on my '65 B, 29/31 in the '58, and 30/32 in the '67. Sometimes I take it down one or two PSI. It just depends on which of the aforementioned factors are most important at that particular time.