In theory, the 88P should be able to air up all four tires in just over 10 minutes. Unless you’re running your tires at really high pressures, you shouldn’t get anywhere near these limits. In our testing, this translated to the 88P managing to inflate our 31.5 inch Nitto Terra Grapplers from 15 PSI to 35 PSI in 2:15 minutes, and to 45 PSI in just over 3:30 minutes.Ī 45 percent duty cycle means the compressor can run for up to 25 minutes at 30 PSI before needing to cool for 35 minutes. However, this is a little misleading because the amount of air a compressor is able to move around falls off as the pressure increases.Īt 30 PSI, the 88P manages a still impressive 1.25 CFM of air and at its max operating pressure of 120 PSI, it should still manage a modest 0.35 CFM. When it comes to performance, the 88P is really quite impressive considering its size.Īt 0 PSI, Viair claims the 88P delivers 1.47 cubic feet per minute of compressed air. That makes finding a reliable compressor for airing up after a day on the trail all the more important. On asphalt, however, running your tires at low pressures can lead to blow outs. Off-road, airing down your tires can improve your vehicle’s performance as well as ride comfort. However, the air hose and power cord are permanently attached to the pump making it nearly impossible to replace them should they fail. The 88P’s 16-foot air hose and 10-foot power cord makes reaching all four tires easy. An inline 20-amp fuse adds an extra layer of protection to your vehicle’s electrical system. Instead, power is delivered directly from the battery. The 88P’s 20 Amp draw means you won’t be plugging it into any of your accessory ports, at least not without blowing a few fuses. The piston head features an integrated heat sink that does an excellent job of helping the compressor keep cool, and that’s important. The whole compressor rests on rubber feet and the heavy duty design long piston stroke means it doesn’t vibrate nearly as violently or loudly as other compressors. On top, a large gauge makes getting a reading easy, though it’s important to note the compressor has to be off to get an accurate one. It doesn’t hide what it is behind a shroud of plastic. The 88P has a simple directly driven piston. Design Specificationsįor better or worse, what you see is what you get with Viair’s 88P. The Viair 88P sits at the top heap of their small portable compressor line. The company offers a wide variety of compressors ranging from light to heavy duty. That’s where compressors from companies like Viair come into play. Sure they’re cheap, but they won’t hold up to more than a few uses. Most cheap air compressors you’ll find on Amazon today use plastic components that quickly overheat and seize up after just a few minutes of use. When it comes to air compressors, especially the portable variety, not all are created equal. In either case, Viair’s 88P and 85P portable air compressors offer compelling performance, solid components, and excellent reliability at a reasonable price. Maybe you just need something to top up your tires every now and then. Maybe you need something to air up your tires after a long day on the trails. So you’re in the market for a new portable air compressor.
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