My s1r9a9m9 replication!

[xbox hacker]

@Cap70

I built a toridal coil just like yours and got my setup all hooked up, with out the LV...JUST HV. I am using a .089uf 2100v cap form a microwave. I get no spark at all on the spark gap on the primary side....witch i would guess is why i get no spark on the secondary side...lol

If i unhook the cap wire from the top of the primary plug i get a spark at that plug...so the ignition coil is working. If i reconnect the wire for the cap...i get no spark, its like the cap is eating up all the HV, but it is not storing it because is shorted the cap to see if it had anything, and it didnt.

Any thoughts?

Does the direction of the primary winding matter?
What gauge is that green wire?

[capacitor70]

I built a toridal coil just like yours and got my setup all hooked up, with out the LV...JUST HV. I am using a .089uf 2100v cap form a microwave. I get no spark at all on the spark gap on the primary side....witch i would guess is why i get no spark on the secondary side...lol

How many capacitors you are using in series, or single ?? you need at least 6KV to get it work, three capacitors in series
capacitance is high it may create problem (Not sure)

If i unhook the cap wire from the top of the primary plug i get a spark at that plug...so the ignition coil is working. If i reconnect the wire for the cap...i get no spark, its like the cap is eating up all the HV, but it is not storing it because is shorted the cap to see if it had anything, and it didnt.

Any thoughts?

Does the direction of the primary winding matter?
No..
What gauge is that green wire?
Gauge is not much important on primary side, insulation is very important, that's why I said do not use magnet winding wire, use high insulation resistance wire...
today I just checked what happen if I increase spark gap, It makes spark on primary winding (insulation break down occurs). and no spark on both spark plug

[xbox hacker]

UPDATE:

I got some positive results form Cap70's coil setup!! 

I could not hook it up as shown in his design, i have to mod it... below is what i did. I removed the spark plug on the primary side and just use a spark gap to ground (same kind of thing i guess) But this is the only way i could get it to work at all!

The next problem is that it only works about 5% of the time, but when it does... WOW!!
I will have to admit i was expecting it not to work (because it didnt sooooo many time) but when it did create a plasma spark it scared the shit out of me...LOL ...i was not expecting it!!

@everyone: Correct me if i am wrong...but if you put caps of the same voltage with different capacitance in series, you are not making the voltage of the series bigger, you are just making the capacitance lower... Does the voltage value change in series?

[hartiberlin]

Xboxhacker,
where is your first sparkgap in your picture Image 0122 ?

capacitor70 is using 3 capacitors in series to make the capacitance smaller
BUT to have a higher voltage rating of the whole capacitance,
so these 3 caps in series stand much higher voltage
as the breaking voltage will add up, when you put them in series.

So if your single cap is rate for maximum 2000 Volts,
3 put in series can withstand 6000 Volts.

Hope this helps.
Regards, Stefan.

[hartiberlin]

Hmm,
when I look at the circuit some more,
I guess it could be much easier, not to use at all an ignition coil,
but just drive a big current pulse maybe with only 2 or 3 windings
into one side of the toroidal transformer,
so on the other side you will get a much higher induction voltage
to get this voltage to add to the low voltage high current side.

So we could probably reduce this circuit to just use the right toroidal
transformer and pulse one side of the toroidal
transformer with a 12 Volts pulse from the car battery via a transistor or MOSFET
and get rid of the ignition coil and the sparkgap.

This way we could save again many parts and generate the required
high voltage pulse.