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General Discussion / Re: S1R9A9M9 18HP Briggs riding mower engine ran on water( 2008)
« Last post by Login to see usernames on November 10, 2024, 19:46:57 pm »It's my current assumption that the conversion circuit of S1R9A9M9 2008 lawn mower water engine 18HP on You tube videos, had used a hidden "small dimension size" Inverter box, about 300-500watts , that was INSIDE the rear hole of cement block with engine on top . Plenty of clearance also for the vertical rotating crankshaft. The other parts were hidden in sealed, painted plastic tub , hanging on side of engine. we could see. Therefore, the Inverter power source was hidden also, so as after the battery was completely disconnected, the engine conversion circuit ran off of the alternator installed under the flywheel. The Briggs stator of yellow+ yellow wires is capable of 20amps dc current. The ignition only operates during about 34% of flywheel turning, so as the wattage from Inverter box is reduced by 34% also. So as current delivered in DC pulses was 6-7-10 amps DC., The hidden Inverter box was being operated in the upper region called "SURGE current" which these boxes are capable of. The pure sine wave type output boxes give much higher surge currents, than the modified sine wave type which is square wave pulses waveform on an oscilloscope. Remember the significance of the very low duty cycle. So now you know. The 400watt green Inverter shown in videos,was not used-, not hooked up, not because it couldn't run the engine, but because it was too big to hide in cement block. The conversion circuit required about 100 volts and current same time. The other S1R9A9M9 electromagnet provided the magnetic field to change the timing to extend to negative late timing, and also provide required field for the tips of spark plug. The high voltage cable hooked to the heavy current same time as going to the zero ohms spark plug. Hydrogen gas evolved and fired along with generation of water vapor pressure.
7amps X 110v = 770watts times .34 duty cycle flywheel usage, = 260 watts or less drawn power , plus the electromagnet current . Both draws are capable of the on board changed alternator. The black+ black wires Briggs alternator is the exact same low ohms as the yellow yellow. Just get the cheapest one. The 500W pure sine wave Inverter is about $40 called LVYUAN painted blue color. from US EBay shipping. Outer size 3.75" wide by 7.8" depth - IT FITS very loose in cement block, or 300W red LVYUAN 3 1/4" by 3 1/4" size.
7amps X 110v = 770watts times .34 duty cycle flywheel usage, = 260 watts or less drawn power , plus the electromagnet current . Both draws are capable of the on board changed alternator. The black+ black wires Briggs alternator is the exact same low ohms as the yellow yellow. Just get the cheapest one. The 500W pure sine wave Inverter is about $40 called LVYUAN painted blue color. from US EBay shipping. Outer size 3.75" wide by 7.8" depth - IT FITS very loose in cement block, or 300W red LVYUAN 3 1/4" by 3 1/4" size.