basically just want to know if a 3gallon tank with 2 444c compressors will be enough for my 08 sentra?
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Are you planning on a 200 psi tank, or a 150? It matters, being that the 200 essentially holds a third again more air for the same exterior volume.
I have a 2.5 gallon 200 psi on my Merc, and it's just enough to lift to ride height, though the compressor immediately kicks on. If I had only a 150 psi tank, I don't think I'd make it.
If you're willing to do a little bit of math, you can actually figure out pretty much for sure whether your setup will work or not, though it's necessary to convert your units to SI before hand. You'll also need to know how much pressure will be in the bags at ride height, which might require asking around for stats on similar setups.
If you're interested, however, the equation is as follows:
Let Vt equal the volume of the tank in cubic meters
Let Vb equal the volume of one air bag at ride height in cubic meters
Let Pt equal the pressure of the tank when fully charged in atmospheres
Let Vb equal the pressure of one air bag at ride height in atmospheres
If Vt * Pt - 8 * Vb * Pb ≥ 0, then the tank has enough air to inflate the bags to ride height. The closer it is to zero, the less headroom you have, though the resultant numbers will always be very small unless you have a massive tank or are running incredible pressure. Just to be on the safe side, I would plug in your compressor's kick-on pressure rather than max pressure for Pt.Last edited by Oh Damn, it's Sam; 02-05-2014, 01:54 PM.
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Originally posted by baggedb16sentra View Poststupid question! how do you plan on a 200psi or 150psi tank?
For example, Viair's got two 2.5 gallon tanks, the 91025, which is rated for 150 psi, and the 91028 which is rated for 200. I've got the 91028.
Since you're running 444c compressors, it would be a shame not to use their 200 psi capability, since you effectively get more capacity "for free." That is, assuming you can find a tank you like - 200 psi tanks are less common than 150.
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If you have a 3 gallon tank, 200psi is a good way to go especially if you have dual 444C compressors. I run a 3 gallon tank at 200psi with a single OB2 compressor in my daily and I love it. Our setups would be pretty similar. A 150psi cutoff and a 3 gallon tank will work but it doesn't give you all that much air volume to play around with in between fills.
To bump your tank pressure up to 200psi, you will need to get a 200psi non-adjustable pressure switch. Simple as that!
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Originally posted by baggedb16sentra View Posti think the tank is fine just my paddles are maxed out for 150psi though.
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