I would like to give my input on the "Costco" air compressor; the Superflow MV50 air compressor and introduce a new compressor that caught my eye.
I got the MV50 for a couple of reasons. It was cheap, at the time it was less than $50, and someone posted on how you could mount it under the hood on top of the fuse box.
Over the last 6 years it has been invaluable, the convenience of having it ready to use, not taking up cargo space, and I thought it looked cool under there. I have had to replace it once, on a hot day the fuse had melted and the compressor wouldn't run. But with only costing $50 it wasn't a big deal to replace. It does the job of filling tires, filling a 35" tire from 15 psi to 35 psi takes just under 3 min. Of course filling all four tires and moving from tire to tire ends up taking about 20 min. That is a good chunk of time, but you are usually talking with your friends and recapping the achievements and mishaps from the day of wheeling.
Is there something better out there, of course there is. There are also a lot of compressors that aren't worth squat to us with bigger tires. So currently I know I have a compressor that gets the job done, but I am also looking for something better. A compressor that is quicker at filling up our large tires, but also that isn't going to break the bank.
Superflow that makes the MV50 also makes a bigger compressor called the MV90.
Here are the specs:
-MV-90 Mega Air Compressor w/ alligator clips
-45A
-3.71 CFM Output
-150 Max PSI
-12V
-20 Ft. Coiled Hose
-6 Ft. Power Cord
-Direct Drive
-Weight 20 lbs
Here are the reported inflation times:
The air up times seem pretty respectable. Someone also posted a video comparision of the MV90 vs. the MV50 "Costco brand".
http://www.youtube.com/watch?v=MSZe25to95A&feature=relmfu
For this improved performance you are going to pay for it. The MV50 can usually be found for $60, this MV90 is $160. Until I see actual air up times of the more expensive compressors like the ARB dual compressor and the Slime compressor, this MV90 will be the replacement for my MV50 when it kicks the bucket.