ed6713 wrote:
I think I am about to pull the plug on one of these, and the TST has the edge:
The writeup on the CW page says this can read temperatures up to 80#. Will this be enough for your needs?
My tires after running on asphalt on a hot day can get well over 80# pressure.
my toad runs tire pressures around 40 lbs & the coach tires are between 105 & 110 (depending on the axle)...The TST (and others I'm sure) lets me set different tire pressures between the coach & the toad (jeep wrangler)...and they have different alarm points (low, high & temps).
I've seen pressures on 100+ degree texas days reach in excess of 130 lbs rolling down the road, and they were set at 105/110 cold.
one thing that is neat to see is what just a slight sprinkle of rain will do to the tire temps....pulls the tire temp down from the 100s degrees to 80 or nearly ambient air temp...pretty amazing to watch on the monitor.
fans of the pressure pro (doesnt to temps) will say you don't need to monitor temps. they'll claim that heat increase pressure - and while thats generally true, the heat to pressure ratio is not linear.
Ive seen tire temps reach 160* (stop & go traffic, 100+ degree days, heavy brake use) and my tire pressures not move much after 125 psi (or so).
IIRC Michelin says tire failure is imminent around 170 or so (I'm sure my numbers & memory are off)....but i know from sitting in traffic that a tire does just go boom at 160*
the interesting thing about getting tire temp info is you can make (driver) adjustments to reduce the temp (less braking, slow down a bit, etc). When put new steer tires on our coach i was also surprised to see how much cooler they ran (compared to the old tires)...due to deeper tread (more airflow and cooling w/in the tread).
