Iridium Spark Plugs on Commando
- Thread starter Lorenzo
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With positive earth, does not the spark go the wrong way, defeating the purpose of the very fine electrode? I have tried them and they fouled up the same as my NGK's in my Norton (too rich at idle/ no choke slides fitted). I use them in a Hayabusa engine and in my V6 Quad cam car and they are superb.
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Mr.Sparks said:
As long as the coils are connected correctly, then, no.
http://mgaguru.com/mgtech/ignition/ig104.htm
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I use Denso Iridium 5307. No issues with nearly 12k miles.
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Deets55
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SteveA said:
Do them come as a non-resistor plug? I can only find them as BPR7EIX. Which by the way work great. Better cold weather starts, stronger idle, will take a larger gap (.028" instead of .025") and less prone to fouling. They also seem to like more fuel. I had to enrich my idle mixture and raise my needle.
Boyer Analog
PVL coils
Solid SS wire
Plain rubber plug boot
31 degrees ignition timing
Pete
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I ran iridium plugs in both my Mk3 and my Victor for several years. Then, as, I believe, now all iridium plugs were resistive and required a non-resistive cap.
Lately I've gone back to conventional NGK plugs (with a resistive cap). No problem with the iridiums, I just honestly couldn't tell any performance difference between the two technologies, and I can make three change-outs of my conventional plugs for what a single set of iridiums cost me. Plus, and this is a big one, the resistive NGK caps have more attractive graphics.
Lately I've gone back to conventional NGK plugs (with a resistive cap). No problem with the iridiums, I just honestly couldn't tell any performance difference between the two technologies, and I can make three change-outs of my conventional plugs for what a single set of iridiums cost me. Plus, and this is a big one, the resistive NGK caps have more attractive graphics.
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I ran iridium plugs in both my Mk3 and my Victor for several years. Then, as, I believe, now all iridium plugs were resistive and required a non-resistive cap.
Lately I've gone back to conventional NGK plugs (with a resistive cap). No problem with the iridiums, I just honestly couldn't tell any performance difference between the two technologies, and I can make three change-outs of my conventional plugs for what a single set of iridiums cost me. Plus, and this is a big one, the resistive NGK caps have more attractive graphics.
Lately I've gone back to conventional NGK plugs (with a resistive cap). No problem with the iridiums, I just honestly couldn't tell any performance difference between the two technologies, and I can make three change-outs of my conventional plugs for what a single set of iridiums cost me. Plus, and this is a big one, the resistive NGK caps have more attractive graphics.
SteveA
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Deets55 said:
Do them come as a non-resistor plug? I can only find them as BPR7EIX.
Pete[/quote]
I guess not, the plugs in my toolbox are BPR7EIX. I have run them fine, and they are good to have as a fallback should I have any starting issues...
The plugs in my motor are ND IW27.....cooler iridiums for race use....have used the NGK equivalent of these too....all good
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