#21
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Re: Flickering blue light ?
you can send the controller back to me and I can increase the hysteresis or take more samples on the incoming idc signal.
Only the relay contacts will be affected.
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Richard L aquamist technical support |
#22
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Re: Flickering blue light ?
Thanks for the offer Richard. I have a couple of events coming up and
I need to get the W/M injection dialled in. So I will try controlling the relay with my ECU first. It is an easily reversible modification and essentially just open circuits your relay control wiring and switches control to the ECU by running a single new wire. If need be I can take up your offer or change back to wasted spark later in the year. But providing I can get a clean turn ON and OFF for the pump the system should work fine. Cheers... jondee86 |
#23
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Re: Flickering blue light ?
System is working as expected with a clean turn ON. However, even with the
GAIN set to maximum CW the flowmeter count shows that flow is pretty much flatlined. There is a very slight rise, but flow is not tracking IDC. From this I conclude that the installed nozzles are at their maximum flow and I need to step up one size ?? No problem, I can do that. At the moment I can just control MAT rise on cooler days and I would like to have a bit of capacity in hand for warmer weather. Cheers... jondee86 |
#24
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Re: Flickering blue light ?
You need a large nozzle to extend your flow range. Increasing the GAIN only flattens the flow earlier (dotted red line). Image extracted from the user manual. please read the manual as there are many information regarding your application.
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Richard L aquamist technical support |
#25
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Re: Flickering blue light ?
I have read the manual many times and have a reasonable understanding
of the function of the controls. What is not immediately apparent to a user such as myself, is how the controls and hardware interact to affect W/M delivery. In this case, with the small FAV restrictor flow did track IDC. But when I changed to the larger restrictor it did not, although flow was well short of 95% IDC. I expected that increasing the GAIN would have the effect shown in the graph only this did not happen. After checking my logs I can see that installing the larger restrictor did not increase W/M delivery at higher IDC. But did increase delivery at lower IDC, and I conclude that flow is now being controlled by the size of the nozzles rather than by changes in IDC. As you say, and no doubt it is obvious to experienced users, increasing the nozzle size is the next step. I am still learning about these things Cheers... jondee86 |
#26
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Re: Flickering blue light ?
Changed the 04b to a 0.50 nozzle and the flowmeter count now
follows IDC (+/-). However MAT is not being controlled so well as with the previous "choked" W/M delivery. I put this down to the fact that with the smaller nozzle delivery went immediately to near maximum output, and remained at that level as IDC increased. I think that this put more mix into the intake ducting at initiation and helped reduce the temperature of the heat soaked intake ducting. Now the system initiates at a lower flow rate and ramps up, so that it takes a bit longer to overcome the effects of heat soak. I have only done a couple of short low gear pulls so far that are inconclusive. Tomorrow I will find a place where I can do a longer 4th gear pull and see if the MAT goes up and then starts to reduce once the intake ducting has been exposed to the spray for a few seconds. Cheers... jondee86 Last edited by jondee86; 17-03-2019 at 08:48 AM. Reason: After thoughts... |
#27
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Re: Flickering blue light ?
With careful matching you should achieve this:
Magenta = PWM input cyan = signal from flow sensor (-0.5V offset) More info: http://www.aquamist.co.uk/forum2/vbu...ead.php?t=2733
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Richard L aquamist technical support |
#28
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Re: Flickering blue light ?
We can supply a fully matched system but it will be costly. The FAV orifice will be constructed for a specific flow range. It is mainly for OE application on one model of car.
The restrictor is a good compromise for lower flow. If you are flowing in the region 500-1000cc/min, the standard system performs well.
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Richard L aquamist technical support |
#29
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Re: Flickering blue light ?
In you case, you need a lo-flow FAV and flow sensor, You are operating slightly outside the ideal range.
You can run two jets, one jet (with inline CV) goes back to the water tank. Other than this I cannot see a good solution.
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Richard L aquamist technical support |
#30
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Re: Flickering blue light ?
Quote:
Quote:
Worth linking 1&2 on the flow table as it will give your a better resolution in you low operation range.
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Richard L aquamist technical support |
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