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Author Topic: My s1r9a9m9 replication!  (Read 517954 times)

happyvalley808

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Re: My s1r9a9m9 replication!
« Reply #495 on: July 21, 2008, 11:49:54 PM »
Aloha,

I found a champian spark plug made for boats, it's a halo plug . Part # L76V  , has anyone tried using one.
I believe it is resistorless...

Mahalo Nui Loa

HV
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xbox hacker

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Re: My s1r9a9m9 replication!
« Reply #496 on: July 22, 2008, 12:19:01 AM »
COIL HEAT TESTS #1

Ok...here is some info about the heat of the coil upon use!

The temp on start of the coil is 99F
The temp on start of the plug is 98F

Both coil and plug were sitting in my un-air conditioned shop all day in the Florida heat  ;D

The test is 5 mins long, stopping at one min intervals to take measurements.

120+ plasma fires per one min.

NO water was used during test except for some during the last min interval.
MIN              Coil Temp                        Plug Temp
1                    112                               100
2                    120                               102
3                    130                               106
4                    145                               110
5                    142                               108 <~~ I sprayed water on plug during this min!

More tests need to be made with water being sprayed all the time. And longer amounts of time.
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happyvalley808

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Re: My s1r9a9m9 replication!
« Reply #497 on: July 22, 2008, 12:51:39 AM »
Xbox,

Good to see you doing some temp. testing.. I wonder what the max temp will end up at ?
Are you still using the same coil? 
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xbox hacker

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Re: My s1r9a9m9 replication!
« Reply #498 on: July 22, 2008, 01:09:51 AM »
Quote from: happyvalley808 on July 22, 2008, 12:51:39 AM
Xbox,

Good to see you doing some temp. testing.. I wonder what the max temp will end up at ?
Are you still using the same coil? 
I think 150ish...

The first image is my coil that i have used in most of vids... the second image is the parts i used to make it. Its just a choke on a ferrite rod, then i wrapped a primary onto it using a some coil wire from a microwave transformer.

BTW...the gap on my plug is .060"  ... "The bigger the gap the bigger the snap!"TM  ;D ;D
« Last Edit: July 22, 2008, 01:47:30 AM by xbox hacker »
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capacitor70

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Re: My s1r9a9m9 replication!
« Reply #499 on: July 22, 2008, 04:18:34 AM »
@Xbox Which is your secondary ? Use thick copper wire for secondary , In Xbox image secondary wire looks very thin. It may not pass high current effectively and become hot.

Here is the simple circuit diagram of my 700Hz 250V AC inverter, It works great not much heating of Mosfet....
If you want to go for more high frequency you need to consider following points.
1. MOSFET diver is must.
2. Use ferrite core.
3. MOSFET gate capacitor..

in my engine test I am not using any inverter, Inverter turansformer is burned by mistake...

R2+VR1 and C2 gives you frequency
Freq=1/(5RC)
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xbox hacker

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Re: My s1r9a9m9 replication!
« Reply #500 on: July 22, 2008, 05:42:33 AM »
Quote from: capacitor70 on July 22, 2008, 04:18:34 AM
@Xbox Which is your secondary ? Use thick copper wire for secondary , In Xbox image secondary wire looks very thin. It may not pass high current effectively and become hot.

Here is the simple circuit diagram of my 700Hz 250V AC inverter, It works great not much heating of Mosfet....
If you want to go for more high frequency you need to consider following points.
1. MOSFET diver is must.
2. Use ferrite core.
3. MOSFET gate capacitor..

in my engine test I am not using any inverter, Inverter turansformer is burned by mistake...

R2+VR1 and C2 gives you frequency
Freq=1/(5RC)

The secondary is the small wire...i can not get a toroidal coil to work to save my life! But I have been using the linear coil for days! The linear coil was a choke that i wrapped the primary wire around...so i did have to make the secondary myself...it was already dun  ;D

I HAVE AN AMAZING VIDEO TO SHOW EVERY ONE!!! It is a must see....as soon as youtube is dun with maintenance  >:(

As for the capacitor charging, i dont think is its a issue (not as much as i thought it was) I fire the plasma rapidly and the spark seems to become less and less.... but if i spray water on it, when it is low, the spark is fantastic!!! All my tests were with no water, but you add the water and it seems to be fine!
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yoyo

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Re: My s1r9a9m9 replication!
« Reply #501 on: July 22, 2008, 07:04:35 AM »
Quote from: xbox hacker on July 22, 2008, 05:42:33 AM

I HAVE AN AMAZING VIDEO TO SHOW EVERY ONE!!! It is a must see....as soon as youtube is dun with maintenance  >:(

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xbox hacker

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Re: My s1r9a9m9 replication!
« Reply #502 on: July 22, 2008, 01:48:15 PM »
HERE IS THE VIDEO!!!!!
Please watch these videos!

http://www.youtube.com/watch?v=Jr_xWnej-gc

http://www.youtube.com/watch?v=3E_dAh5ZRcs  <~~~this one is just for fun!!!!  ;D
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Super God

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Re: My s1r9a9m9 replication!
« Reply #503 on: July 22, 2008, 05:00:06 PM »
Very nice videos!  I hope to make one soon.  I have job lined up soon for extra cash for parts.
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xbox hacker

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Re: My s1r9a9m9 replication!
« Reply #504 on: July 23, 2008, 02:47:10 AM »
Another UPDATE:

I made a new coil with wire form a microwave transformer, i used it for the primary and the secondary. It works great and now it barely gets hot! I might do some more heat trials to see for sure........
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rfsimoes

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Re: My s1r9a9m9 replication!
« Reply #505 on: July 23, 2008, 11:25:36 AM »
Hi people,

Has any one taken trials with spark under pressure and see what hapens?
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rfsimoes

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Re: My s1r9a9m9 replication!
« Reply #506 on: July 23, 2008, 02:20:09 PM »
Capacitor70

Because of my results with the coil arrangement I will go back to the diode setup.

Can you please help me understand how did you go for the 6a10 diodes?

6Amps why? How can the diodes stand the discharge of the capacitor since it is a short when the gap is pulsed with HV? The current here is theoretically infinite right?

Now the voltage blocking.
You say 19x 6a4 which gives a 7600V blocking or 12x  6a10 which gives 12000V blocking voltage.
Why did you go for this values?
I don't know what is my coil output voltage but I've read that 40000V is normal.

I'm asking you this not because it doesn't work. It DOES WORK! But I need to find the cheapest diode arrangement to continue the tests, and without this data I'm a bit tied up.
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capacitor70

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Re: My s1r9a9m9 replication!
« Reply #507 on: July 23, 2008, 03:01:56 PM »
Because of my results with the coil arrangement I will go back to the diode setup.
Why ? What are coil results ?
Can you please help me understand how did you go for the 6a10 diodes?
6Amps why? How can the diodes stand the discharge of the capacitor since it is a short when the gap is pulsed with HV? The current here is theoretically infinite right?
Diode have 400Amps Transient current capacity for 8.3mSec
Now the voltage blocking.
You say 19x 6a4 which gives a 7600V blocking or 12x  6a10 which gives 12000V blocking voltage.
Why did you go for this values?
increase number of diodes until see spark on the tip of spark plug
I don't know what is my coil output voltage but I've read that 40000V is normal.
Yes it is 40000Kv, but 3000 to 6000V is enough to generate spark at the tip

I'm asking you this not because it doesn't work. It DOES WORK! But I need to find the cheapest diode arrangement to continue the tests, and without this data I'm a bit tied up.
There is no cheapest diode arrangement, Diodes get very hot NOT SUITABLE FOR LONGER  TEST TIMES, Don't go for diodes, coil solves all problems
 
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xbox hacker

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Re: My s1r9a9m9 replication!
« Reply #508 on: July 23, 2008, 03:08:55 PM »
@rfsimoes:
I too started with the diode setup and got great results, but my diodes got so hot that the solder melted and the diodes fell apart! The same thing happened to Cap70.

@everyone:
I will be testing Cap70's coil setup in a B&S 14hp engine tonight!!! PLEASE cross your fingers for me  ;D ;D
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Remoireturn

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Re: My s1r9a9m9 replication!
« Reply #509 on: July 23, 2008, 03:51:29 PM »
Hello all, I'm Remoi from waterfuel1978 group.

@xbox
I cross fingers for you, you are a nice man, you share all your test and the last one with the sparkplug under water is just wonderful. I hope you will start the engine tonight on water  ;)

@capacitor70
I was so close to your diode setup instead that my lub was after the bridge and was 100w. That was my biggest mistake. But as I don't have any knowledge in electronic, I never tried without the lamp. I surely started the engine 2 years ago if I knew that the lamp limits the power of my setup to 100w.

Now the car we was testing on is sold. I just get a lawnmower running perfectly on gas. Tomorrow I will try again my diode setup on it (I tried today but the sparkplug is resistive  >:( I need non resistive one). if I get results, I then will go for your coil system.

You talk about 1100pf and 6000v. So i can use 3x 3.3nf@2000v in serie ?
Also can you explain me/us more about your core ? what size, what material ? The green wire, is it just a simple insulated wire we can find anywhere or something else ?

What do you think about the 330?f capacitor (I use 470) ? Will it survive on a long time engine run at high RPM ?

Thank you also for your tests and sharing it.

Best regards

Remoi
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