thepest
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| posted on 10/5/08 at 05:53 AM |
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Pulse Plugs
Has anyone tried these or are they just more gimmicks?
http://www.pulstarplug.com/
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clairetoo
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| posted on 10/5/08 at 06:01 AM |
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Gotta say - looks like total b*****ks to me - the web page reads like a cosmetics ad with all the psuedo technobabble going on 
Its cuz I is blond , innit
Claire xx
Will weld for food......
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rusty nuts
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| posted on 10/5/08 at 06:43 AM |
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Just opening up the plug gap will give you a stronger spark . Problem with that is the coil is the limiting factor. Electronic ignition systems
provide a stronger spark than points systems and also give better starting etc
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adithorp
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| posted on 10/5/08 at 06:48 AM |
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Snake Oil!
What surprisis me more is they've missed the killer claim; This stuff usually has some mention of NASA or Spitfires.
Mind you at $24.95 each they should be brilliant. Much better value than an electric supercharger!
adrian
[Edited on 10/5/08 by adithorp]
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britishtrident
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| posted on 10/5/08 at 09:29 AM |
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Willing to bet they are just plugs with an internal auxiliary spark gap. Auxilary spark gaps are an ancient trick to boost spark voltage.
Quote from an excellent web page by Dave Moore
http://home.clara.net/dave.moore/plugs.html
"A final variation on the basic spark plug theme you should know about is something NGK calls a "booster gap," and is known at
Champion as an "auxiliary gap." By any name it's an air gap built into a plug's core, and it improves resistance to fouling.
Conductor deposits on a plug's insulator nose tend to bleed off the spark coil's electrical potential as it is trying to build itself up
to spark-level strength. If so much energy is shunted in this way that firing does not occur we say the plug is "fouled." It is possible
to clear a lightly fouled plug by holding the spark lead slightly away from the plug terminal and forcing the spark to jump across an air gap. The air
gap works like a switch, keeping plug and coil disconnected until the ignition system's output voltage rises high enough and is backed by enough
energy to fire the plug even though some of the zap is shunted by the fouling deposits. Mechanics discovered this trick; plug makers have incorporated
it into some of the plugs they sell, and booster/auxiliary gap plugs work really well in bikes with an ignition system strong enough to cope with the
added resistance. Such plugs more or less mimic the fast-voltage-rise characteristics of CDI systems - and offer no advantage used in conjunction with
a capacitor-discharge ignition."
end quote
------------------------------------------------------------
Modern ignition system produce very high plug voltages anyway and use very wide spark plug gaps -- typical manufacturers plug gap in the 1930s to
1970s was in the range of 0.020" to 0.035", in contrast the official plug gap for a Mondeo is 0.053". (The smallest spark plug gap
I ever came across was on the Rolls-Royce B series military engines 0.015".
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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caber
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| posted on 10/5/08 at 10:37 AM |
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There was a gadget at Stoneleigh that did something similar it extended the spark duation by pulsing it. Al these things are snake oil, they may
compensate for some other defects like bad timing or failing coil but won't improve a properly set up engine.
Caber
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