Progressive pump speed injection system - Do they work?
#32
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the pulsing action is like going 0 throttle to full throttle on your car, a few times a second.....
puts undue wear on pump brushes, the on demand swtich, the bearings within the pump - everytime it pulses, current draw from the pump motor spikes.
puts undue wear on pump brushes, the on demand swtich, the bearings within the pump - everytime it pulses, current draw from the pump motor spikes.
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I wondered why the gauges were on the passenger side of that car, then I remembered you live in the UK, hehe.
That video really shows a lot of fluctuation in flow. Especially compared to my HFS-5 system which shows a smooth increase in flow as load increases untill where it holds rock steady with no flucations
Last edited by dudical26; Sep 17, 2007 at 12:56 PM.
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The thread below has many video clips and discussions of progressive pump system. Warning: long and heated exchanges.
http://www.srtforums.com/forums/showthread.php?t=330092
http://www.srtforums.com/forums/showthread.php?t=330092
Last edited by Richard L; Sep 19, 2007 at 10:28 AM.
#37
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mapping the alkycontrol/ams progressive pump speed injection kit
thanks to dubbleugly01 for the loan of his pps system
Pump drive, signal drive, pump controller
Test setup
15GPH nozzle
Checkvalve
alkycontrol/ams 100w pump vs. 60w pump
Spray video - 3 volts and 5 tune, partial video
Result
video1
video2
video3
video4
video5
video6
video7
video8
if anyone has a snow or smc kit sitting around and wants to see how they perform, i can test it out for you.
Pump drive, signal drive, pump controller
Test setup
15GPH nozzle
Checkvalve
alkycontrol/ams 100w pump vs. 60w pump
Spray video - 3 volts and 5 tune, partial video
Result
video1
video2
video3
video4
video5
video6
video7
video8
if anyone has a snow or smc kit sitting around and wants to see how they perform, i can test it out for you.
Last edited by SlowCar; Oct 5, 2007 at 12:13 AM.
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What does the spray pattern look like? That would be what I'm interested in. Looks like you have a shrowd over the nozzle to contain overspray, and you can't really tell if the nozzle is doing a good job of atomization? What were your impressions of nozzle atomization? But based on flowrates measured, the 15 gph nozzle is putting out just about 15 gph at 5 volts. Spot on!
I plottted various flowrates at certain boost levels (based on a 3 bar map sensor) vs. the controller gain (the knob labelled from 0-8). Hope it helps show the linearity of the system. At 30#'s, it looks like you don't really have much adjustment over the alky delivered, it's basically maxe'd out at anything over a controller setting of 4.
All in all, it doesn't look too bad, rather good actually.
I plottted various flowrates at certain boost levels (based on a 3 bar map sensor) vs. the controller gain (the knob labelled from 0-8). Hope it helps show the linearity of the system. At 30#'s, it looks like you don't really have much adjustment over the alky delivered, it's basically maxe'd out at anything over a controller setting of 4.
All in all, it doesn't look too bad, rather good actually.
Last edited by dubbleugly01; Sep 29, 2007 at 11:48 PM.
#39
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below ~500grams/500cc/min flow, the atomization is very poor - spray was more like droplets than atomization.
i wonder if it is possible to design the progressive controller to behave in a more linear/progressive manner?
i wonder if it is possible to design the progressive controller to behave in a more linear/progressive manner?
Last edited by SlowCar; Oct 8, 2007 at 05:12 PM.
#40
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Abner,
When you make these bias tests, why do you use hardware that was not sold with the kit to begin with? you are using a 60 psi pump. Our system was designed to run a high pressure pump, we have never sold a vari-cool system with anything less than 150 psi.
When you use your "25 psi" checkvalve like you do, combined with a 60 psi pump you have a max range of 35 psi. Its no wonder you had **** poor results.
Both of these videos were done using our new failsafe and our system. A flow sensor would monitor the flow and return that value to the varicool to be reported on screen. If I had used a 60 psi pump, there wouldnt be these results.
High boost
http://www.coolingmist.com/videos.aspx?videoid=9#video
low boost
http://www.coolingmist.com/videos.aspx?videoid=4#video
David
When you make these bias tests, why do you use hardware that was not sold with the kit to begin with? you are using a 60 psi pump. Our system was designed to run a high pressure pump, we have never sold a vari-cool system with anything less than 150 psi.
When you use your "25 psi" checkvalve like you do, combined with a 60 psi pump you have a max range of 35 psi. Its no wonder you had **** poor results.
Both of these videos were done using our new failsafe and our system. A flow sensor would monitor the flow and return that value to the varicool to be reported on screen. If I had used a 60 psi pump, there wouldnt be these results.
High boost
http://www.coolingmist.com/videos.aspx?videoid=9#video
low boost
http://www.coolingmist.com/videos.aspx?videoid=4#video
David
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An even flow is obviously going to give you that turbine like feel
I have been very impressed with the Auqamist kits particularly the HFS-1 which is a kit I have a real soft spot for
Al