[MetroMPG]

Answer: 220 PSI!

220 PSI CAR TIRE EXPLOSION !
We found a couple of these old tiers so we figured that we need to test and see how much pressure can these tires take. Our main goal was to see a tire explosion. Some people call it tire blow out ( tire blowout) or tire burst but it surely is a tire explosion. A tire blowout doesn't sound like a tire explosion.

So anyway we took out our compressor that can pump out to 200 psi. We hooked the tire to the high pressure compressor and started inflating the tire. For our surprise we pumped 200 psi and maxed out the compressor but no tire explosion. Nothing happened, the tire inflated, stretched out a bit and that is it. There was no tire explosion.

But we are stubborn and wanted to see a tire explosion, so this is what we did. We took our carbon dioxide tank that had 360 psi of pressure inside of it. We went out to the forests because we know that with this kind of pressure the blowout ( tire explosion ) was not safe. We took all of the needed safety precautions and hooked everything up. We started to pump the carbon dioxide in to the tire and finally at 220 psi (16kg/cm2) we saw the tire blowout. The tire explosion was phenomenal. It sounded like a gun shot. But for our surprise there were no debris flying around. The tire neatly blowout on the side leaving a huge open gab.

We liked the result and wanted to repeat our tire explosion. So we hooked one more tire up. This blowout send the tire flying in to the air with leaving us searching the near by bushes to find the tire.

After we were done all of the tires were disposed of properly and nothing was left behind.

https://www.youtube.com/watch?v=pP6vnIuod_s