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Originally posted by NO1LOWR
ther is a reason viair has been around 10yrs, they make a good pump, although i do support the az when it comes to breaking down, there customer service and replacement or repair warrantee blows vi air out of the water.
UMM.... yeah, Viair's been around for awhile granted;..........but the owner of Air Zenith who is also the cheif engineer, desgned 90% of all of Viair's compressors. yep, paul @ AZ used to work as the cheif engineer at Viar for quite along time. He applied what worked with the viar's, improved upon them, and when viar wouldn't market them because costs for them to stop production of their existing units and go to the new designs was too high for them,...........well, he did what anyone of us would do............started his own company. Now he has a truely family owned business. His family manufactures the electrical motors for the pump from his specs, they produce and cast the pistons, the little o-rings, the cases, everything. Nothing on a AZ is outside purchased. they are truely made in-house. Something Viar could never claim to do as all of their units are designed, engineered, tested and manufactured overseas. While AZ units are manufactured overseas, they are designed and partially assembled here in the states. So, given the farily new product line AZ is producing, it is a far superior product, the life of the units WHEN USED AND OPERATED WITHIN IT'S MEANS far outlasts any other compressor and requires zero maintenance. The problems associated with AZ are relative to electrical theory and principle. For example: a compressor works less than half as hard to produce 140 psi than it does to produce 180 psi. Very few vehicles out there need 180 psi to lift. Most people just like how quick it is going up. But, back to the point, when an electric motor is working harder (i.e. high pressure levels) it will correspondingly pull more amperage from an electrical circuit, (in this case, the vehicles battery's and or charging system), also, in drawing amperage, it produces heat, heat is a by product of electrical current. These two factors together are 99% of all electrical failures, whether it is in an a/c system in a home, home wiring, automitive wiring, audio etc etc.
As stated, if a unit is used within reason, it will last for many years to come. Granted at some point, it will probobly need a rebuild, but it is a good unit. I have had AZ's for sometime now and use to drive the vehicle every day. i'm not switch happy and play with the bags constantly, but i did use them alot at certain times. Still, i experienced no problems, and know of multiple top quality vehicles which have had no problems with the AZ units. Do a correct install, ensure the electrical system is up to the task INCLUDING WIRING, and don't be outrageous with pressure levels and the AZ units will prove itself without a doubt.