Going to make my own WI kit
#202
Just under 1mm, like .9 mm or so should get you there. I bought a set of tiny drill bits that go from like .35 mm to 1 mm and I gradually went up in size by hand drilling it. Takes awhile because you have to be very careful not to break the bit off inside the nozzle.
#204
Mr.Epic
iTrader: (11)
Just under 1mm, like .9 mm or so should get you there. I bought a set of tiny drill bits that go from like .35 mm to 1 mm and I gradually went up in size by hand drilling it. Takes awhile because you have to be very careful not to break the bit off inside the nozzle.
#208
Mr.Epic
iTrader: (11)
I did some more research and called around...this is the website we need to be getting our flow numbers from
http://s7d5.scene7.com/s7ondemand/br...SSCo&el=normal
As for nozzle flow rates, I tested mine, and it turns out it flows exactly what it should, for some reason I ordered the 1/8J+SUE18B combination....with that nozzle it's only supposed to put out 2gph...which is only 126cc.
After looking at the SUE25A...If we are to assume we're going to have 20psi of liquid pressure, it looks like it'll flow 12.3gph and that rate is independent from the air pressure... it would flow about 775cc/min...
SUE25B or SUE28B both will supply around 580cc at 20psi, assuming water pressure is also at 20psi
http://s7d5.scene7.com/s7ondemand/br...SSCo&el=normal
As for nozzle flow rates, I tested mine, and it turns out it flows exactly what it should, for some reason I ordered the 1/8J+SUE18B combination....with that nozzle it's only supposed to put out 2gph...which is only 126cc.
After looking at the SUE25A...If we are to assume we're going to have 20psi of liquid pressure, it looks like it'll flow 12.3gph and that rate is independent from the air pressure... it would flow about 775cc/min...
SUE25B or SUE28B both will supply around 580cc at 20psi, assuming water pressure is also at 20psi
#212
Senior Member
iTrader: (1)
I did some more research and called around...this is the website we need to be getting our flow numbers from
http://s7d5.scene7.com/s7ondemand/br...SSCo&el=normal
As for nozzle flow rates, I tested mine, and it turns out it flows exactly what it should, for some reason I ordered the 1/8J+SUE18B combination....with that nozzle it's only supposed to put out 2gph...which is only 126cc.
After looking at the SUE25A...If we are to assume we're going to have 20psi of liquid pressure, it looks like it'll flow 12.3gph and that rate is independent from the air pressure... it would flow about 775cc/min...
SUE25B or SUE28B both will supply around 580cc at 20psi, assuming water pressure is also at 20psi
http://s7d5.scene7.com/s7ondemand/br...SSCo&el=normal
As for nozzle flow rates, I tested mine, and it turns out it flows exactly what it should, for some reason I ordered the 1/8J+SUE18B combination....with that nozzle it's only supposed to put out 2gph...which is only 126cc.
After looking at the SUE25A...If we are to assume we're going to have 20psi of liquid pressure, it looks like it'll flow 12.3gph and that rate is independent from the air pressure... it would flow about 775cc/min...
SUE25B or SUE28B both will supply around 580cc at 20psi, assuming water pressure is also at 20psi
Looking at the tables of the higher flowing nozzles, it looks though they require higher pressure to atomize properly. For instance, for the SUE25A, in the 20 psi liquid column you mentioned, the minimum air pressure is 40 psi. The SUE28B looks like more capable at lower air pressure, but still the minimum air pressure is 30 psi.
The SUE18 still looks like the best one in the 300 ccm range. It meets the minimum air pressure requirement in the 10-20 psi range of operation, and flows between 4.2 and 6.0 gph in that range, @ 258-379 ccm
- Sandro
#213
The sue18 is what I got originally and it didn't flow 379 cc at 20 psi. It flowed more like 200cc . I went by those charts for the first couple nozzles I purchased and they just didn't work out the same in my testing.
The atomization still seems fine with the larger nozzles, obviously we can't run 30 or 40 psi air with 20 psi liquid. The liquid and air pressures will be equal and dependent on the turbo outlet pressures. But we aren't painting the car either, we are injecting water into the turbo. The more water you inject the less atomizing that can be achieved. The main thing is keeping large droplets from hitting the turbo blades to minimize the chances of pitting or erosion. I feel the larger nozzles still provide a nice balance between droplet size and keeping the engine happy with plenty of water especially if you plan on pushing more then 15 psi into the engine.
My first nozzle after being drilled out flowed more then double what it originally flowed, but the water was still a nice mist floating off into the air. This same nozzle has been on the car for over a year now and I have no signs of turbo blade erosion.
The atomization still seems fine with the larger nozzles, obviously we can't run 30 or 40 psi air with 20 psi liquid. The liquid and air pressures will be equal and dependent on the turbo outlet pressures. But we aren't painting the car either, we are injecting water into the turbo. The more water you inject the less atomizing that can be achieved. The main thing is keeping large droplets from hitting the turbo blades to minimize the chances of pitting or erosion. I feel the larger nozzles still provide a nice balance between droplet size and keeping the engine happy with plenty of water especially if you plan on pushing more then 15 psi into the engine.
My first nozzle after being drilled out flowed more then double what it originally flowed, but the water was still a nice mist floating off into the air. This same nozzle has been on the car for over a year now and I have no signs of turbo blade erosion.
#223
Mr.Epic
iTrader: (11)
Just under 1mm, like .9 mm or so should get you there. I bought a set of tiny drill bits that go from like .35 mm to 1 mm and I gradually went up in size by hand drilling it. Takes awhile because you have to be very careful not to break the bit off inside the nozzle.
#224
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I'm considering installing a mechanical WI system as well. There is some great information in this thread.
The only thing I may do differently, is removing the solinoid from the system, and making it completely mechanical. Positive pressure = positive flow. Has anybody else considered this?
The only real downside is the extra water consumption when the car is between 0-8psi. With my driving style and small turbo, when I'm in boost I'm already at 1 bar. There isn't much "in between" or wasted water. But even so, a little water never hurt anything. The less wires in the engine bay, the better.
So, instead of this:
We have this...
Am I missing anything here?
-R4tw
The only thing I may do differently, is removing the solinoid from the system, and making it completely mechanical. Positive pressure = positive flow. Has anybody else considered this?
The only real downside is the extra water consumption when the car is between 0-8psi. With my driving style and small turbo, when I'm in boost I'm already at 1 bar. There isn't much "in between" or wasted water. But even so, a little water never hurt anything. The less wires in the engine bay, the better.
So, instead of this:
We have this...
Am I missing anything here?
-R4tw