jstadwater update
jstadwater has now installed the mods to his v8 with the updated vexus circuit. His next step is removing the wall supply and running from the battery…
jstadwater has now installed the mods to his v8 with the updated vexus circuit. His next step is removing the wall supply and running from the battery…
After a near miss with death while working on installing and testing his vexus setup Jstadwater is back with a vengeance and reports the successful installation of the vexus circuit in his Tranzam fuel injected v8 engine.
I just completed the VexUs install in the Suburban, started it up and it purred like a kitten! I have a couple tests to perform before I take her out on the road. I started it up without the plasma circuit on, and monitored the readouts on my laptop through the OBD2 connection. Specifically the o2 sensors and the fuel trim readouts, fuel trim was 0% as normal and o2 sensors were reading normally. I flipped on the VexUs circuit and the fuel trim readouts started fluctuating like crazy, as did the o2 sensor signals, I guess the ECM was trying to figure out what the heck was going on! (Good luck with that, mr. ECM ) This was at factory settings, I have not changed the program yet to lean out the fuel mixture or retard the timing, that’ll be tomorrow! When the plasma circuit comes on, the idle does go up and immediately the ECM takes over the idle speed to keep it “acceptable” according to it’s program parameters. (I can re-program that also) I measured the amp draw from the battery to the inverter, at idle it was 2 amps. I quickly opened the throttle, (no stumble or miss, very quick response and smooth as can be) and held it for a few seconds probably around 3,000 rpm from the sound, the amp draw never went past 3.5 amps. Keep in mind, this is a 5.7 liter V-8, instead of a 4-cylinder, pretty low amps there. I also measured the feed line to the kick wires, the draw is still only between .10 and .12 amps.
I am using quad shield satellite cable (18 gauge inner wire, shielded to 2,300mhz) from the voltage tripler inside the cab out to the standard 2-way and 4-way cable TV splitters under the hood. 2.5uF at 450VDC powered by a 1000 watt inverter and isolation transformer. Inverter is happy as a Lark, so far so good! I will post pics tomorrow, my wife has the camera today. I can’t wait to see how this 350 Chevy is going to perform on the road with this circuit! Stay tuned, it can only get better from here on out……………………………………….. Mike
jstadwater has a demo of running the plasma spark in a compressed chamber. He describes the setup and result.
I obtained a cylinder combustion test plate from a friend of mine that bolts onto a cylinder head and allows simulation of combustion chamber pressures. I did this test at 2,300 rpm and only one of eight plugs setup to fire plasma. I pressurized this chamber at 100 – 110 psi, using VERY dry air from the dryer system my painter uses to paint cars. Because we all know what happens with plasma and moisture! As the pressure increases, so does the size of the plasma! I thought compression would decrease the effect, but I guess not now.
125 p.s.i.
Jstadwater has got a full circuit hooked up now and is bench testing his engine before installing it. He is making very good progress so hopefully it won’t be long before he has a complete setup in his Tranzam…
jstadwater has been testing rpm’s with the vexUs circuit on his v8 setup. He is getting up to 5800 and reports there is no heat generated on the wiring for the circuit.
jstadwater has adapted the vexus circuit to his v8 setup… Sweeeet!
Running at 2300 rpm with no misfires…
jstadwater from energetic forum has built a v8 circuit based on gmeast’s 4 cylinder circuit. He is planning to mount it in his Chevy 350 and/or GTA Tranz-Am. It’s a plasma spark using V-8 HEI distributor and capacitor with blocking diodes.
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