Thanks for the responses but :
If my compressor is rated at 40% duty cycle then it should be able to run 24 minutes out of every hour. And if I had bought a 100% duty cycle it should be able to run none stop. The reason I ask is running three compressors is asking a lot of your electrical system to handle ....
I am guessing that real life experence is compressor don't last as well as they should ?????
Joe
the 9gallons fit on the passenger side frame rail…right under the rear door…its a super tight fit unless u notch out a bit of the body mounts…i got it in there perfect.and it sits level so it looks nice from the outside…painted it to sorta match…and tucks up in there real nice
looks awesome bro
The bottom line is this… If you want to void you warranty, go for it… I understand that for most vehicles running dual compressors is a nice size load, however, it might be worth it to get the dual compressors.
I’m running dual 400C compressors and it doesn’t affect me, my duty cycle is only 33% so for every minute it is on, I have to let it sit for 2 - 3 minutes… I’m not going to run the risk of burning up my motor just to fill a 10 gallon tank… not to mention the charts here…
PSI Fill Rate Amp Draw
0 2.54 16
10 2.26 18
20 2.12 21
30 1.94 22
40 1.84 23
50 1.70 24
60 1.62 25
70 1.55 25
80 1.48 26
90 1.41 26
100 1.20 26
110 1.20 26
120 1.09 26
130 0.95 25
140 0.85 25
150 0.71 25
As you can see, anything above 60psi is pulling 25 amps (26 amps from 80 - 120psi) not to mention the fill rate drops to almost nothing.
On top of that, here is some more math for you…
Fill rates…
5.0 Gallon Tank Fill Rate
0 To 105 PSI 2 Min. 55 Sec.
85 To 105 PSI 35 Sec.
0 To 145 PSI 4 Min. 50 Sec.
110 To 145 PSI 1 Min. 40 Sec.
So now you have to double all of these numbers… Your 1 compressor is going to work for 9 minutes 40 seconds MINIMUM to fill a 10 gallon tank, where as my 2 compressors will do it in less than 5 minutes… So almost half of the time it is running, it is pulling 25 - 26 amps constant… I don’t know what type of vehicle you have, nor do I know your alternator output to keep your system charged, but I don’t think I would want to have my compressor running for almost as long as my drive is. Its loud enough as it is, but 10 minutes of it straight?
Then you have to think about if you horn someone, your system has to charge for almost 6 minutes to get the system back to the “optimum” level.
Oh yeah, lets hope the thermal shutdown inside the compressor doesn’t kick in while you are trying to fill your 40" tires. It took me more than 10 minutes to fill my 37" tires with dual compressors and a 5 gallon tank. I have to fill my tires to 65psi, so if my system drops below the 65psi, the compressors are doing all of the work now. Think about it like this… how long does it take you to fill your tires at a gas station?
Chiming in for Dan: Except the Oasis which can fill a huge air tank. (I think he says 20 or so gallons no problem… but I imagine bigger is possible)
This is not true. The standard measurement of duty cycle is how long the compressor can run in one hour at 72 degrees F with limited humidity. 100% does not mean your compressor can run endlessly!
Two old threads:
KingRanchSteve,
GREAT PIC! I like the colored (almost completely hidden) tank. Now I must ask if you have a pic of the RS-3L mounted, and can you post it? I’m just about to rebuild my RS-3L and I have been investigating where to mount it (‘03 F350 CC LB 10.%’ Donahoe Racing Lift on 40’s w/20" wheels).
Did you remove your spare? It looks like you are running 35’s on 22" wheels. Also, did you mount the air valve far from the RS-3L’s. I hear that the Leslie’s sound better when they are farther from the electric valve (they really want a hand-controlled valve, no?).
n2ocharged, thanks for the run-down. Very clear and precise; thanks again. 2 compressors minimum for a 9-10 gallon tank.
Yep, that’s true. That’s why there aren’t any Leslie’s in service much anymore. Other than being a pain to work on, the electric valves were and are killing them. A manual valve would be ideal for your Leslie but if you have to go electric, position the valve with as much airline inbetween it and the horn as possible.
[QUOTE=Figurehead;30522]KingRanchSteve,
GREAT PIC! I like the colored (almost completely hidden) tank. Now I must ask if you have a pic of the RS-3L mounted, and can you post it? I’m just about to rebuild my RS-3L and I have been investigating where to mount it ('03 F350 CC LB 10" Donahoe Racing Lift on 40’s w/20" wheels).
Did you remove your spare? It looks like you are running 35’s on 22" wheels. Also, did you mount the air valve far from the RS-3L’s. I hear that the Leslie’s sound better when they are farther from the electric valve (they really want a hand-controlled valve, no?).
I still have my spare in there…i have 6"lift with 37s…the k3 is bolted to the bed floor right behind the fuel tank…i think its almost impossible to mount a RS3L without removing the spare…IMPOSSIBLE to do it and be concealed
Yeah I have dual 480C’s on a 5 gal tank. I know thats super efficient, what I dont know is if that is enough tank.
100% duty cycle doesnt mean non stop.
I mean i think of it like this. These compressors are small. they dont put out a lot of cfms so really the air in your tank is your muscle. Whereas a compressor that you plug in the wall has higher cfm output and therefore more possibilities.
Why do the electric valves kill them? Do they like to be wound up instead of just BLASTING 150 psi into em?
yep… the diaphragms in a Leslie are smaller, thinner, and generally weaker than say a Nathan K series horn.
wildhorn…remember at my house i was easing into the leslie but i would go full throttle with the nathans…a nathan is more forgiving horn…treat a leslie like a nathan and it screws up…A leslie is a girl.go easy on her
is there a drain on that tank? im not seeying one…
Yeah, if you dont have a manual valve on the leslies then I guess you have to put a long tube on em.
my tank??yes there is,its on the front end of the tank on the corner…i also have a air spiket to connect airhose to fill tires.run a tool…blow off the floor,the bed.
when i drain my tank i sit my driver rear wheel on a curb o whatever then open it…it tanks out all the water…which aint much…my compressors r in my fender vents so theres not water
Thats the perfect tank to have right there because you can side mount it and still have the drain plug facing down, vs. my tank which is like this:
