I have the Smittybilt 2781, It will do 4 x 37s at once in less than 5 min. It is running 5.65 CFM. I havent done it a bunch of times in a row though.I’d like to see cost and honest spec comparison like the ARB graph between the hardwired Wolfbox and the ARB twins both standard and brushless. I’d like to see some real world test like airing up a set of 37s using a 4 way inflator from 10 to 32 PSI, maybe 4 times back to back.
From / to what PSI? Maybe my 2781 was defective, but it seemed to take forever to air up my 33s from around 14 to 35 in my first Rubicon. I was just doing them one by one though.I have the Smittybilt 2781, It will do 4 x 37s at once in less than 5 min. It is running 5.65 CFM. I havent done it a bunch of time in a row though.
Sorry, I usually run around 13/14psi.From / to what PSI? Maybe my 2781 was defective, but it seemed to take forever to air up my 33s from around 14 to 35 in my first Rubicon. I was just doing them one by one though.
The cord was also aggravatingly prone to getting tangled, the connectors were cheap AF, it got extremely hot, and it was a PITA to get crammed back into the slightly too small bag. The rubber part of the line lasted about a year before it started leaking. Sorry, not a fan of Smittybilt's compressor.
Looking at it now though, it seems like they've at least improved the connectors. When I bought mine in mid-2020 they were the manual screw-on type.
I'm surprised to hear of people running compressors off their 7 pin. Like you noticed, that voltage drop would really hamper its performance.I will say it does not like running off 7 pin either. Ran super slow and cable was getting too warm for my liking. So I clamp to battery.
Mine Smittybilt 2781 works fine, for how much it cost me. Going from 12psi to 27-28psi in about 3 mins using two way inflator, so about 6 mins or so for all. 37s. I mounted it to a hard toolbox and added the pressure switch. It turns off when it reaches 110 or 120 psi and turns back on when it drop down to 90 or so, I can't remember. The hose fitting was also updated to the standard air chuck fittings. All in about $150 for my air setup.From / to what PSI? Maybe my 2781 was defective, but it seemed to take forever to air up my 33s from around 14 to 35 in my first Rubicon. I was just doing them one by one though.
The cord was also aggravatingly prone to getting tangled, the connectors were cheap AF, it got extremely hot, and it was a PITA to get crammed back into the slightly too small bag. The rubber part of the line lasted about a year before it started leaking. Sorry, not a fan of Smittybilt's compressor.
Looking at it now though, it seems like they've at least improved the connectors. When I bought mine in mid-2020 they were the manual screw-on type.
Ya, it worked well with my last one but this SB draws too much.I'm surprised to hear of people running compressors off their 7 pin. Like you noticed, that voltage drop would really hamper its performance.
Works fine for me too. Not the fastest. Maybe 10 minutes at most to fill all four 35s from usually about 18psi up. Gives me time to walk around for a minute and inspect the Jeep for beauty marks.I'm surprised to hear of people running compressors off their 7 pin. Like you noticed, that voltage drop would really hamper its performance.