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LBLbaby
Joined: 14 Oct 2014
Posts: 16
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 Posted: Wed Oct 15, 2014 9:37 am Post subject: help my friend! |
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my friend just bought a MSD from the store,but don't know how to install it.  is there anybody know how this device(multi spark discharge BK-3400) working? |
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MikeEdwards
Joined: 25 May 2011
Posts: 2470
Location: South Cheshire
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| Posted: Wed Oct 15, 2014 10:11 am Post subject: |
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Possibly better in another section of the forum - this area is for announcements about forthcoming classic car shows, or reports from shows that have already taken place.
Didn't it come with any instructions? |
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peter scott
Joined: 18 Dec 2007
Posts: 7118
Location: Edinburgh
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Peter_L
Joined: 10 Apr 2008
Posts: 2680
Location: New Brunswick. Canada.
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| Posted: Thu Oct 16, 2014 2:55 pm Post subject: |
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| MikeEdwards wrote: | Possibly better in another section of the forum - this area is for announcements about forthcoming classic car shows, or reports from shows that have already taken place.
Didn't it come with any instructions? |
Instructions !!! Isn't that a document that should only be referred to once every trial and error combination has been completed. ?
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Bitumen Boy
Joined: 26 Jan 2012
Posts: 1735
Location: Above the snow line in old Monmouthshire
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| Posted: Thu Oct 16, 2014 5:17 pm Post subject: |
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| peterwpg wrote: | | MikeEdwards wrote: | Possibly better in another section of the forum - this area is for announcements about forthcoming classic car shows, or reports from shows that have already taken place.
Didn't it come with any instructions? |
Instructions !!! Isn't that a document that should only be referred to once every trial and error combination has been completed. ?
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The way many sets of "instructions" are written that's often the best idea. I was assembling a wall bracket for a TV back in the summer, and went completely wrong by following the useless instructions. I had to dismantle everything and start again, but once I actually looked at the parts, had a bit of a play and thought about it for a minute I had it licked in no time |
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Old Wrench
Joined: 23 Dec 2013
Posts: 226
Location: Essex and France
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| Posted: Thu Oct 16, 2014 7:10 pm Post subject: |
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Oh I simply loved this bit!
"Ignition energy stronger up 170mJ, ignition voltage remains constant at 45000V even at high speeds,engine speed rise faster, more powerful, sharp acceleration, horsepower and torque can be increased by 10% -15%, vehicle performance has been significantly improved."
I can just imagine all the lovely spark coronas dancing around the distributor cap and rotor........
The OEM manufacturers, naturally, hadn't a wee clue what they were doing when they specified the ignition system!
Remind me to tell you all the nice little tale of the charming little Irish gentleman and his Mini Countryman and BHP at the front (driving )wheels one day....... |
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LBLbaby
Joined: 14 Oct 2014
Posts: 16
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| Posted: Tue Oct 21, 2014 9:57 am Post subject: |
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| Old Wrench wrote: | Oh I simply loved this bit!
"Ignition energy stronger up 170mJ, ignition voltage remains constant at 45000V even at high speeds,engine speed rise faster, more powerful, sharp acceleration, horsepower and torque can be increased by 10% -15%, vehicle performance has been significantly improved."
I can just imagine all the lovely spark coronas dancing around the distributor cap and rotor........
The OEM manufacturers, naturally, hadn't a wee clue what they were doing when they specified the ignition system!
Remind me to tell you all the nice little tale of the charming little Irish gentleman and his Mini Countryman and BHP at the front (driving )wheels one day....... |
You use this device before?You know how it work?And where did you got the message?...My friend really love it..... |
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ukdave2002
Joined: 23 Nov 2007
Posts: 4104
Location: South Cheshire
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| Posted: Tue Oct 21, 2014 11:56 am Post subject: |
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It sounds as if this is a Capacitive Discharge ignition rather than the Inductive Discharge ignition that is more common on the majority of our vehicles.
The maximum voltage that an ignition system can deliver is not as important as the speed in which the coil voltage rises and collapses; to fire a plug, the voltage rises in the coil secondary until its high enough to jump the plug gap, widen the gap and quite simply the voltage it fires at will be higher.
So assuming in this devices instructions it advises that the plug gaps be opened up (they would have to be pretty big to make the plug fire at 45KV ) as Old Wrench points out, the other HT components in a conventional ignition system would have probably leaked most of the energy way before it got to the plug!
Dave |
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