Hey friends,
I got my passive water/meth injection system going on my 12h-t and it is certainly a treat watching EGTs go down or only rise by 1-2 degrees at a time on long inclines.
Prerequisites:
1) A device that triggers a relay on high EGTs (I'm using an Auber SYL-2813 )
2) A fogging nozzle, I'm using a 16.8 GPH one from McMaster Carr
3) Brass Barbed Hose Fitting 90 Degree Elbow Adapter for 1/4" Hose ID, 1/8 NPTF Female
4) 1/4" ID clear hose
5) Headlight washer reservoir or other water reservoir
6) Fine mesh to use as a filter on the reservoir fill
My initial plan was to flow the fog by the Auber triggering the headlight washer pump when EGT hits 900F. In testing, I realized that 16.8 gph was much too high and I actually needed around 3 gph for this size engine/boost.
video of headlight washer pump connected to the 16.8gph fogging nozzle
I plumbed the system (without the pump connected) and realized that she was drinking down the juice all on her own! Water would creep up the tube towards the intake as I throttled up... so I went for a spin. Turns out the boost going through the intake plenum creates sufficient vacuum to draw the water from the reservoir with great results! EGT decreases or goes up very slowly on long inclines. With the setup as it was, the engine was sucking down the entire reservoir after about an hour's worth of driving. A gallon of windshield washer fluid (30% methanol) costs about $3 per so that was not going to work.
Test run up a long incline using this system - https://youtu.be/mPN55twfg4M
To solve this problem I found an inexpensive ($11) 12v solenoid driven valve and some barbs which I put inline to the flow. I configured the Auber relay to trigger the valve when EGTs are > 900F and to stay open until they drop to 850F. I've noticed that steady-state freeway driving I'm usually around ~800F.
I drove around with this setup all day today and am thrilled to see that my water reservoir level has barely dropped.
The preliminary results are good and I'll provide more information as I learn it.
I got my passive water/meth injection system going on my 12h-t and it is certainly a treat watching EGTs go down or only rise by 1-2 degrees at a time on long inclines.
Prerequisites:
1) A device that triggers a relay on high EGTs (I'm using an Auber SYL-2813 )
2) A fogging nozzle, I'm using a 16.8 GPH one from McMaster Carr
3) Brass Barbed Hose Fitting 90 Degree Elbow Adapter for 1/4" Hose ID, 1/8 NPTF Female
4) 1/4" ID clear hose
5) Headlight washer reservoir or other water reservoir
6) Fine mesh to use as a filter on the reservoir fill
My initial plan was to flow the fog by the Auber triggering the headlight washer pump when EGT hits 900F. In testing, I realized that 16.8 gph was much too high and I actually needed around 3 gph for this size engine/boost.
video of headlight washer pump connected to the 16.8gph fogging nozzle
I plumbed the system (without the pump connected) and realized that she was drinking down the juice all on her own! Water would creep up the tube towards the intake as I throttled up... so I went for a spin. Turns out the boost going through the intake plenum creates sufficient vacuum to draw the water from the reservoir with great results! EGT decreases or goes up very slowly on long inclines. With the setup as it was, the engine was sucking down the entire reservoir after about an hour's worth of driving. A gallon of windshield washer fluid (30% methanol) costs about $3 per so that was not going to work.
Test run up a long incline using this system - https://youtu.be/mPN55twfg4M
To solve this problem I found an inexpensive ($11) 12v solenoid driven valve and some barbs which I put inline to the flow. I configured the Auber relay to trigger the valve when EGTs are > 900F and to stay open until they drop to 850F. I've noticed that steady-state freeway driving I'm usually around ~800F.
I drove around with this setup all day today and am thrilled to see that my water reservoir level has barely dropped.
The preliminary results are good and I'll provide more information as I learn it.
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