Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[Scott Wagner]

Is that accuracy or precision? There is a difference between the two terms, and they are often confused.

I have a digital indoor/outdoor thermometer with a precision of +/-0.05 degrees (meaning that the display shows tenths of a degree), but it is inaccurate by several degrees.

The tool has inherent precision. Accuracy comes from calibration.

[John Roberts {JR}]

I like to joke that human hearing has couple digits more resolution than accuracy. :-)

JR

[John Roberts {JR}]

bump... just checked my car tires and puny 25-26 psi....

low profile tires are hard to eyeball.

JR

[Mac Kerr]

bump... just checked my car tires and puny 25-26 psi....

low profile tires are hard to eyeball.

JR

I don't know about yours, but my low profile tires take a lot of pressure. The recommended pressure is 41psi.

Mac

[Nathan Riddle]

This is timely, my day job just sent out a memo to check all the company vehicles...

Apparently someone was on low tread tires and flipped his car via hydroplaning. Guy was okay.

[Bob Leonard]

Replaced all my tires with new Michelins just before the start of the winter. Got 65,000 out of the originals and have only had 6 or so flat tires during that period of time.

[Don T. Williams]

Since we are mostly on the subject of tire pressure, remember that many trailer tires use much, much higher tire pressures.  75 - 80 psi is common.  I lost a trailer tire because a tire shop used a standard valve stem on my stage trailer.  Trailer rims need higher pressure valve stems.

Werner Stagemobiles need 100 -110 psi if I remember correctly.  Those tires are rated for more weight and require special wheels and valve stems to handle the tire pressure!  Carefully check what the tire requires.  I see lots of "passenger car" tires and rims swapped onto trailers.  It could be dangerous or even deadly putting 80 psi into a questionable "used passenger car tire" used to quickly (or cheaply) get your trailer going !!!

[John Roberts {JR}]

I don't know about yours, but my low profile tires take a lot of pressure. The recommended pressure is 41psi.

Mac

Over the decades when I was driving more miles a day (each way), than I now drive a full week, I experimented with (too) high inflation (45-50#), but these days I am running modest 32#.  25# was too low but would probably survive my short shopping trips.

Back in the day when I had a longer commute I had one tire fail on the highway (at speed) due to overheating from under inflation, but it did fail gracefully, mainly causing an extra PIA driving home that night. Did I mention low profile tires are hard to eyeball..? Especially if you don't look at them every time..    Now I try to be more regular about  topping them up, and use a tire gauge to determine status.

I do like to pump my bike tires as hot as they can stand 50-60# because I can feel the difference in rolling resistance.

JR

[Mac Kerr]

Over the decades when I was driving more miles a day (each way), than I now drive a full week, I experimented with (too) high inflation (45-50#), but these days I am running modest 32#.  25# was too low but would probably survive my short shopping trips.

Back in the day when I had a longer commute I had one tire fail on the highway (at speed) due to overheating from under inflation, but it did fail gracefully, mainly causing an extra PIA driving home that night. Did I mention low profile tires are hard to eyeball..? Especially if you don't look at them every time..    Now I try to be more regular about  topping them up, and use a tire gauge to determine status.

I do like to pump my bike tires as hot as they can stand 50-60# because I can feel the difference in rolling resistance.

JR

If I don't keep my tires at 41psi they get cut when I hit a pothole. The northeast in winter is a pothole wonderland.

Mac

[John Roberts {JR}]

If I don't keep my tires at 41psi they get cut when I hit a pothole. The northeast in winter is a pothole wonderland.

Mac

      I used to live up there....    no frost heaves in MS....   Not that they take better care of the roads down here, but nature is just less of a biotch.

I figured out in the '80s I could move south, and nobody would stop me. 

JR

[ProSoundWeb Community]