Where to mount air compressor?
- Thread starter joeyallen25
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- air compressor location mount
Oh wow you're right I don't know why I remembered 350. Dang small block Chevy's.
Zero. When you add a tank you are essentially filling the equivalent of five tires to air up four.
A tank is unnecessary unless you have a need for stored compressed air, such as for air lockers, air horns, etc.
I tested with and without a tank a while back. Results are here. It is faster but it's close enough I removed the tank shortly after the testing.
I have the 450P.
IMO, the 400P would have been a better choice.
More CFM vs. less duty cycle.
However, the 33% duty cycle means it can run for 20 minutes (rest for 40) at 100psi.
More than enough for 4 tires.
IMO, the 400P would have been a better choice.
More CFM vs. less duty cycle.
However, the 33% duty cycle means it can run for 20 minutes (rest for 40) at 100psi.
More than enough for 4 tires.
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^^ This.
The Viair 400 series is rated at 1.19 CFM at 100 psi with a 33% duty cycle at that pressure. The 100% duty cycle 450 series is rated at only 0.94 CFM at 100 psi. (CFM ratings at 0 psi are greater but meaningless.)
33% at 100 psi is a relatively meaningless duty cycle rating because we are not inflating our tires to 100 psi, . For all practical purposes, the duty cycle for a Viair 400 series compressor used to inflate tires to typical TJ street pressures is 100%.
According to Viair,
400P - 2.3 cfm at 0 psi
450P - 1.8 cfm at 0 psi
And yes, I realize duty cycle at 100 is irrelevant. Another reason, (IMO) why 100% duty cycle isn't necessary.
I think the 444c would be a better alternative if I'm looking at the specs right. 100% duty cycle, higher CFM, still less than the ARB though. https://viaircorp.com/products/oba-roadwarrior
Here is where my dual Rough Country compressor using the MORE ARB mount. The RC compressor has the same specs as the ARB dual compressor and is 1/2 the cost. I've had great luck out of mine so far.
https://mountainoffroad.com/products/arb-air-compressor-mount-tj-99-06?variant=14539441537135
https://mountainoffroad.com/products/arb-air-compressor-mount-tj-99-06?variant=14539441537135
I wish my emissions crap was in not on the driver fender. It would make it a lot easier to mount auxillary items there.
what emissions stuff do you have there? Both my TJ and LJ are originally CA vehicles and neither have extra emissions stuff there. The TJ does have the ABS module though.
Sometime around 2002, the emissions stuff moved from the front left fender into the rear right corner.
Oh so the charcoal canister and purge valve? That makes sense. I was thinking he was talking about some other additional emissions things.
On the 2000 at least there is the evap cannister and behind that is the cruise control. Here's my 2000 with a single ARB on the ABS tray. I made a bracket for the switch and put it on the cc mount. BTW the ARB single is plenty fast for me with 31s and 30s
I have a Viair 450 with a tank under my Superduty and the ARB single seems just as fast if not faster but it does get plenty hot.
I'll be the odd one. Mounted mine on the underside. That are the Klein water proof compressors so water is not issue.
Yea the charcoal canister and purge valve. On the '02+ it frees up a lot of space with it moved to the rear.
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