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Single cylinder twin plugged

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kommando

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Зарегистрирован: 03 сен 2016, 19:58

Машина: Norton Commando

Версия SECU: самодельная SECU-3L


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Сообщение 25 сен 2016, 18:39

Single cylinder twin plugged

Thinking ahead to my planned 2nd install, this will be on a 4 stroke single cylinder twin plugged engine, crank sensor on 28 tooth sprocket and cam sensor with single window. Currently the engine has two traditional 6V coils wired in series fed by 12V, both firing at the same time and so both sparks have full power. I plan to fit a Secu 3t with 1 or 2 ignitors ?, based on the documentation with sequential ignition and the software being told the engine is one cylinder then only ignitor one will be sending a signal, can this ignitor one signal be send to two separate COP coils telling them both to fire at the same time or does it only reach one coil, should this be a series or parallel connection. If not is there a way to get ignitor one and two to send a signal simultaneously.

A twin coil is possible but one side is normally wasted spark and leaves plenty of energy for the compressed side, with both plugs needing to fire under the compression spark the energy is reduced, I have used a 12V twin coil in traditional ignition setup and it is not as good as the 2 6V coils.
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STC

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Зарегистрирован: 30 апр 2013, 23:41

Откуда: Ukraine

Машина: AZLK 2140

Версия SECU: самодельная SECU-3


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Сообщение 25 сен 2016, 21:58

Re: Single cylinder twin plugged

Yes, SECU-3 unit will generate pulse only on the IGN_OUT1 output.
Possible options:
A single ignitor, connected to IGN_OUT1, two 6V coils wired in series fed by 12V
Two ignitors, connected to IGN_OUT1, two 12V coils connected separately, fed by 12V
A single ignitor, connected to IGN_OUT1, one 12V coil with dual high-voltage outlets, fed by 12V

Third option will be not as good as first and second. I guess, second option will provide most powerful spark.
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
Клуб проекта ВКонтакте https://vk.com/secu3club (вступаем!)
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kommando

Аватара пользователя

Сообщения: 14

Зарегистрирован: 03 сен 2016, 19:58

Машина: Norton Commando

Версия SECU: самодельная SECU-3L


Благодарил (а): 8 раз.
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Сообщение 25 сен 2016, 23:11

Re: Single cylinder twin plugged

Option 2 it will be, not seen any 6v cop coils for option 1 but plenty of 12v ones, 2 ignitors also gives redundancy so if one fails the other still provides a spark.
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STC

Аватара пользователя

Сообщения: 5532

Зарегистрирован: 30 апр 2013, 23:41

Откуда: Ukraine

Машина: AZLK 2140

Версия SECU: самодельная SECU-3


Благодарил (а): 674 раз.
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Сообщение 25 сен 2016, 23:30

Re: Single cylinder twin plugged

2 ignitors also gives redundancy so if one fails the other still provides a spark.

Small bonus :-)
Author of the SECU-3™ project http://SECU-3.org. An open source engine control unit / Ignition control system, (C) 2007.
Клуб проекта в Facebook https://www.facebook.com/groups/secu3club
Клуб проекта ВКонтакте https://vk.com/secu3club (вступаем!)

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