The high-pressure gauge reads the pressure in the air supply (i.e. 4,500 psi in a high-pressure SCBA cylinder). The low-pressure gauge reads what the pressure is being reduced to by the regulator.

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It does draw 13 amps as a result, and comes in on the loud side at 79 dB, but the tradeoff is 4.2 CFM at 90 PSI and a fast recharge, meaning you can run air tools like an impact wrench, air chisel ...

Keith Gibson PCP air rifles use a pressurized air-storage tank, which must be filled from another high pressure source. Here’s a guide on different ways you can get air into your airgun. When to ...

Yamaha has developed a high-pressure direct injection system (HPDI) that's used on seven all-new 2.6-liter 76 degrees V6 engines in 150- and 200-hp ratings.

AIR + FUEL + IGNITION = MAGIC. If you want to go fast, is increasing one of these a solution? Noob tuners believe upping a few psi of fuel via an aftermarket adjustable fuel pressure regulator ...

Air tanks made for paintball are high-pressure in a tiny space, and make a very convenient energy source. In this case, [headsplosive] used a 68 cubic inch, carbon fiber wrapped tank rated at 4500psi.