Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Proposed braking test: comparing tire pressure @ 50 psi vs 35

ShadeTreeMech · 05-29-2009, 03:54 PM

I accidentally did this test a while back driving an Explorer without ABS.

I had the front tires around 45-50 psi on the front. These were newer Cooper tires. Anyway, I had to do an emergency stop and went well past the point I would have liked to have stopped and had done before in this truck. Problem was the brakes locked up and i panicked and held the pedal down. Since this time I've been a big fan of ABS. Maybe you can theoretically stop quicker without ABS, but I don't live in the theoretical world. Either way, I lowered the PSI to 40 and the braking was much better.

05-29-2009, 03:54 PM	#32 (permalink)
ShadeTreeMech Basjoos Wannabe Join Date: Apr 2009 Location: Arkansas Posts: 829 The Van - '97 Villager gs 90 day: 19.8 mpg (US) Max - '98 Maxima SE 90 day: 26.89 mpg (US) Thanks: 146 Thanked 43 Times in 29 Posts	I accidentally did this test a while back driving an Explorer without ABS. I had the front tires around 45-50 psi on the front. These were newer Cooper tires. Anyway, I had to do an emergency stop and went well past the point I would have liked to have stopped and had done before in this truck. Problem was the brakes locked up and i panicked and held the pedal down. Since this time I've been a big fan of ABS. Maybe you can theoretically stop quicker without ABS, but I don't live in the theoretical world. Either way, I lowered the PSI to 40 and the braking was much better.