Tire pressures
03-20-2015 | 01:05 PM
#16
Rennlist Member
Joined: Feb 2013
Posts: 3,599
Likes: 337
From: Summit Point, probably
I have been reading for years to check the 'cold' tire pressure. But what is 'cold' tire pressure? Somewhere it says a minimum of 3 hours after driving. In my garage in upstate NY it is 30 degrees F. right now, but at my condo in Florida it is 80 F. The 'cold' measurement will be dramatically different in each place, as will the tires' performance at the same inflation.
Can't find anywhere that sorts this out technically for me.
Can't find anywhere that sorts this out technically for me.
Should give you the info you need. Your instincts are correct, tire pressure is affected by ambient air temperature and the variation in ambient air temp.
03-20-2015 | 01:19 PM
#17
Rennlist Member
Joined: Aug 2014
Posts: 184
Likes: 4
From: NY/FL
Check this out. http://www.tirerack.com/tires/tirete....jsp?techid=73
Should give you the info you need. Your instincts are correct, tire pressure is affected by ambient air temperature and the variation in ambient air temp.
Should give you the info you need. Your instincts are correct, tire pressure is affected by ambient air temperature and the variation in ambient air temp.
I see where their test says: "We monitored the changes in tire pressure in 5-minute intervals. "
Not sure how they do this, but it seems every time I put the gauge on the valve 1/2 pound leaks out! https://rennlist.com/forums/images/smilies/frown.gif
03-20-2015 | 02:11 PM
#18
Rennlist Member
Joined: Feb 2013
Posts: 3,599
Likes: 337
From: Summit Point, probably
Thx - good link!
I see where their test says: "We monitored the changes in tire pressure in 5-minute intervals. "
Not sure how they do this, but it seems every time I put the gauge on the valve 1/2 pound leaks out! https://rennlist.com/forums/images/smilies/frown.gif
I see where their test says: "We monitored the changes in tire pressure in 5-minute intervals. "
Not sure how they do this, but it seems every time I put the gauge on the valve 1/2 pound leaks out! https://rennlist.com/forums/images/smilies/frown.gif
03-20-2015 | 03:17 PM
#19
Nordschleife Master
Joined: May 2005
Posts: 7,328
Likes: 68
BTW, I highly recommend this digital gauge
It waits for pressure to stabilize before taking the reading and will beep when the reading is ready. You get consistent reading all the time and don't lose 1/2 pound when you put it on.
It waits for pressure to stabilize before taking the reading and will beep when the reading is ready. You get consistent reading all the time and don't lose 1/2 pound when you put it on.