Sounds like your ignition timing is off?  S1r says spark firing should be 30-40 deg after TDC.
We are saying engine is not running with gasoline.

Also, do you have a waste spark (ignition coil firing every crank rotation)? That blast sound you hear is the waste spark igniting on the exhaust stroke.
Yes we have waste spark, Plasma spark comes at only waste spark, No spark under pressure.

im a little confused, you say its not running.  Are you saying its not running at all even with normal spark and on gas, or are you saying its not running on PLASMA spark with gas???

We are also confused, xbox, rfsimoes , and me tried this new coil based plasma system, It works best outside the engine, but inside the engine it is not running engine with gasoline...But the same engine with same timings works with diode based plasma circuit. Without LV on it generates normal spark but normal spark generated after the coil is not running engine with gasoline. It fires at atmospheric pressure but not at engine pressure inside cylinder.

If it will run with normal spark and gas, i cant figure why it wont run with the plasma spark and gas.  Unless the plasma spark is being delayed slightly and its throwing the timing off to "after top dead center"
It's not a engine timing issue....

The waste spark sounds like problem when you have to charge up the cap and the cap cant charge up fast enough to fire on every stroke?
Capacitor charging is not the problem it works much fast enough outside the engine....

Spark plug outside the engine, when we kick the engine plasma spark is visible and fast enough, Not a single fire is observed with gasoline with coil based plasma circuit....

http://www.odu.edu/ao/instadv/quest/coldplasma.html

"It?s easy to make plasmas at low pressures, like the near-vacuum of space. It?s much harder to initiate and maintain them at low temperature and at atmospheric pressure,?  What we see with coil based plasma circuit is cold plasma 

But I observed temperature,  It?s much harder to initiate under pressure..
But previous voltage multiplier circuit triggers plasma discharge when I give pressure 

Quote from: capacitor70 on July 24, 2008, 12:45:08 AM
Sounds like your ignition timing is off?  S1r says spark firing should be 30-40 deg after TDC.
But the same engine with same timings works with diode based plasma circuit. Without LV on it generates normal spark but normal spark generated after the coil is not running engine with gasoline. It fires at atmospheric pressure but not at engine pressure inside cylinder.

Spark plug outside the engine, when we kick the engine plasma spark is visible and fast enough, Not a single fire is observed with gasoline with coil based plasma circuit....

Interesting problem. It looks like there is something special and different is going on with the Diode circuit vs the new Coil circuit, to be able to ignite water in the engine one way but not the other.

Anyway to increase the volts and amps in the Coil circuit?  Like increasing the LV cap from 340uf to say 600uf?  To also increase the HV side to raise the voltage from 10kv to say 60kv?

Regards,
Michael Randall

Quote from: capacitor70 on July 24, 2008, 12:45:08 AM
But previous voltage multiplier circuit triggers plasma discharge when I give pressure 

I am thinking the VA is difference in the circuits.  S1r says needs 10amps at 20-60kv to run an engine on water. Somehow the coil circuit is not strong enough in either the V or A output vs your voltage multiplier circuit?

Another possible difference is the Dt, the rate of change to discharge.  One circuit is faster than the other. Tesla observed that the faster the rate of discharge the greater the effect.

Michael

Hello all

@cap70 & @xbox,

You put 3 capacitor in serie to get 6KV ... OK. But do you think there is also 6KV at the LV sparkplug ? If it's the case, then here is the problem. That's why standard HV ignition coils are 16 to 40KV. HV spark in air pressure is easy to get at 6KV but under pressure you will need close to what a standard HV coil is : 16 to 40KV. So, more and more 2000v capacitors in serie at HV side of the circuit.
Because no HV spark at LV side, no plasma !

What do you think about this theory ?

Best Regards

Remoi

Maybe someone with a scope could look at the 2 spark signals and see the difference between the 2 of them. I may be saying nonsense but maybe there is a delay in the spark.

For now I just want replicate the same result cap70 has with his engine, and since I only have a 2 stroke whit oil mixture for tests, I will buy today some 1N5408 diodes and go from there.

This coil setup maybe just needs some tuning so in the mean while I will try the diodes once again.

@Capacitor70
What do you think about the 1n5408? 1000V 3A DC 200A peak
They are very cheap and abundant around here.