Water Sparkplug

[gmeast]

VexUs circuit diagram

Hi all,

I've attached the hybrid circuit diagram. It should be noted that the choice of R1 and C1 are critical to the frequency response the circuit will have. For instance if C1 is 22uf and R1 is 55ohms then one RC time constant is 0.0012 seconds. 5X RC gives you a quick enough charge for a 4-cylinder engine turning 5000 RPM. The discharge time is dependent upon the circuit resistance ... it should be kept as low as possible. This will determine how completely the CDI Cap discharges and how much it floats above 0-VDC like shown on the VexUs scope trace in the last video.

In the video I used a 0 - 3500 ohm pot just for test and development since I didn't know what to expect. This is all new to me too.

The mechanism of the circuit is no mystery. Most welding equipment especially Tig welding equipment have a feature called 'high frequency start'. In this type of welding you use a torch that's not really a torch but an electrode holder with a sharp tungsten tip shrouded in inert gas. A high current arc is generated between this tungsten tip and the workpiece and that's the heat source. To start the welding arc you normally would need to touch the tungsten tip to the workpiece. But with 'high freq' a high frequency (low current) spark 'dances' around in the gap between the tungsten and the workpiece ionizing the space and making it very conductive. The high current welding arc now starts all by itself. This is likely what is happening in our circuits. The regular ignition spark is ionizing the spark plug gap allowing the higher current stored in the CDI Cap to flow.

Peace,

Greg

[jstadwater]

Thanks Luc,

Next thing is to make sure it's nice and stable at higher frequency and then hook it up in my GTA Trans-Am and see how she acts!! I could not have accomplished this without the help of all you guys, thanks a million!!! Later................................Mike

[gotoluc]

Great job there jstadwater

Video looks good to me

Thanks for sharing

Luc

[jstadwater]

My first video................

Hey guys,

I just uploaded a video to Utube of my V-8 distributor plasma firing all 8 spark plugs. I have no idea how long it takes for them to "process" a video, but as soon as they do, it can be viewed by everyone.

Mike's first video - V-8 HEI Plasma

The video is not very good quality, due to a piece of junk camera. The spark looks alot better in person, have to get a better camera. I only have 110V supplying this circuit right now. I intend to build part of Greg's circuit to go along with mine and up the volts to around 300 or so. I found out that the Crydom mosfets also come with a volt rating of 400, for about $30 more each. Anyway, there's my first vid, can't wait to finish stabilizing this circuit and try it out in a Chevy 350!! Later....................................Mike

[xpskid]

VexUs

Hi all,

New VexUs multi-spark plug circuit operating with standard 12VDC coil now on video at:
YouTube - VexUs Circuit - Multi Spark Plug Adaptation

Peace,

Greg

Greg,

You outdid yourself again !!! Hats off to you
Dang, you're moving so fast, I can't keep up, I'm still finishing your last circuit on my V6.
Can you speak a little about the current limiter ? Does that mean when you move to higher power, you're allowing more current ?
My question is the fundamental theories tossed out about high potential / low current vs, high current / low potential. There was a belief early on that this phenomenom was associated with high potential, low current, and the idea of a potential compression caused by the diode slamming shut. And I thought the booster cap experiments showed best results using a smaller cap with higher potential ?

I remember one of your earlier videos showing a very unique plasma spark, it was broad and expanding rather than a bolt between electrodes. Do you see that same type of effect with this system ? You are in the best position to compare your finding and give guidance to the group.

Regards,

Timm

[gmeast]

circuit

Can you post the exact circuit for this?
Thanks,
Jetijs

Hi Jetijs,

I'm probing the circuit now to see if there are potential problems with hooking it up to an engine with ICM or other computer stuff ... looking for transients, etc. ... so far it's clean. Will post the circuit when done.

Thanks for your interest. Peace,

Greg

[lapperl]

VexUs Circuit

Hi all,

New VexUs multi-spark plug circuit operating with standard 12VDC coil now on video at:
YouTube - VexUs Circuit - Multi Spark Plug Adaptation

Peace,

Greg

Awesome job!!!

Do you think that you will be installing the VexUs Circuit on your Beetle?

Lapperl

[Jetijs]

Hi all,

New VexUs multi-spark plug circuit operating with standard 12VDC coil now on video at:
YouTube - VexUs Circuit - Multi Spark Plug Adaptation

Peace,

Greg

Can you post the exact circuit for this?
Thanks,
Jetijs

[gotoluc]

Wow, excellent job Greg

The VexUs name still makes me

Thanks for sharing

Luc

[gmeast]

VIDEO multi - plug VexUs circuit bench test

Hi all,

New VexUs multi-spark plug circuit operating with standard 12VDC coil now on video at:
YouTube - VexUs Circuit - Multi Spark Plug Adaptation

Peace,

Greg

[gmeast]

schematic

Very nice, Greg.
It sounds/looks a little familliar to me, cause I have played with a somehow similar circuit, but I have abandoned it. It did not manage to make plasma at high rpm... And I used a 0.22uF/630V capacitor...
Would you please show us the schematic?
Thanks!

HI,

It's on its way. I just needed to make sure multi-plug was no problem.

Greg

[Kinetix]

Very nice, Greg.
It sounds/looks a little familliar to me, cause I have played with a somehow similar circuit, but I have abandoned it. It did not manage to make plasma at high rpm... And I used a 0.22uF/630V capacitor...
Would you please show us the schematic?
Thanks!

[gmeast]

VIDEO new Vexus circuit Hybrid CDI - Standard Ignition

Hi all

I just finished with a brain storm that paid off.
I named it "VEXUS" just for fun.
I designed a CDI/Conventional ignition hybrid that has:

stability
no SCR's
no Mosfets
no twitchy inductors (no MOT parts)
tuneability
scaleability
adaptability
simplicity
. . . . phew!

It piggybacks onto standard 12 VDC Coil.
Definable by conventional theory.
Can be explained in terms of "soft start" technology used on my 30 year old Tig welding equipment.

Video is at:
YouTube - Hybrid CDI - Standard Ignition

Peace,

Greg

[lapperl]

Bill's Nexus Circuit First Video

I was too excited, so I had to make a quick video.

YouTube - Bill's Nexus Circuit First Test

I'll have to do more testing tomorrow, it's getting late and the wife will kill me if I stay up late again!!

LapperL

[lapperl]

Nexus circuit

Well I watched Bill's second video and he explained his circuit more clearly. He also showed close up footage of how his circuit is wired.

I decided to go ahead and test it my test vehicle with one plug and 120vac from my wall socket. I have been reluctant to attempt his circuit due to every ones posts of burnt out inverters.

I am happy to inform everyone that the circuit worked just as described.

Just as a precaution, I isolated everything!! Even the MOT. I believe that this will be required to run effectively.

Next step is to try and not burn up my inverter.

I will post more info once I have completed and post an updated schematic.

LapperL

I forgot to mention that I only used 45 diodes during this test due to the fact that I stole 15 for my Gmeast circuit that I have been playing with.