iridium spark plugs
#1
iridium spark plugs
I have been told that the iriduim spark plugs I was running were "too hot" and I should revert to the platinium ones. can any one please explain this to me please? .
I have moved back to the platinium ones and my car is running well with current set up. But I thought the smaller hotter start to the flame in the power stroke the better!
Thanks !
I have moved back to the platinium ones and my car is running well with current set up. But I thought the smaller hotter start to the flame in the power stroke the better!
Thanks !
#2
Hmm, interesting comment from whoever that was...
Iridium - platinum - Copper - Unobtainium, it doesnt matter what the plug material is, it doesnt significantly affect the heat range of the plug itself, all it does is improve spark and or reliability / longevity. the plugs still conform to heat ranges as plugs always have.
Its true you may have fitted a plug too hot for your engine, no argument there, but choosing a correct range Iridium is the same solution as fitting the correct range platinum, so if you were told all Iridium are too hot for your engine then the guy who told you that is totally and utterly wrong.
If your interested in spark plug technology, this may prove an interesting read for you.
http://www.motorsport-developments.c...AF272_tech.pdf
Pop the kettle on.
Iridium - platinum - Copper - Unobtainium, it doesnt matter what the plug material is, it doesnt significantly affect the heat range of the plug itself, all it does is improve spark and or reliability / longevity. the plugs still conform to heat ranges as plugs always have.
Its true you may have fitted a plug too hot for your engine, no argument there, but choosing a correct range Iridium is the same solution as fitting the correct range platinum, so if you were told all Iridium are too hot for your engine then the guy who told you that is totally and utterly wrong.
If your interested in spark plug technology, this may prove an interesting read for you.
http://www.motorsport-developments.c...AF272_tech.pdf
Pop the kettle on.
#4
more confusion ?
sorrry about the delay in getting back but family and looking fir work too me away from passion ford!
I have done some digging in my garrage and other sotres and found:
old spark plugs:
platinium AGPR12pp - as per ford parts dept!
platinium AGPR902p - as per ford parts dept!
Iridium IK20 - as installed by me after going Denso web site.
Iridium IK24 NOW installed in the car.
so can you tell me whick ones were right?
Many thanks
Brendan
Engine is Turbo'd CVH running 14 to 16 PSI boost, bosch beige 701 injectors, water cooled valve guides to keep the head cool.
I have done some digging in my garrage and other sotres and found:
old spark plugs:
platinium AGPR12pp - as per ford parts dept!
platinium AGPR902p - as per ford parts dept!
Iridium IK20 - as installed by me after going Denso web site.
Iridium IK24 NOW installed in the car.
so can you tell me whick ones were right?
Many thanks
Brendan
Engine is Turbo'd CVH running 14 to 16 PSI boost, bosch beige 701 injectors, water cooled valve guides to keep the head cool.
#6
why don't you like the Denso spark plugs? Iridium ones will probably be the better as Iridium is the only metal to maintain good mechanical properties in air at temperatures above 1600 °C.
platinium can't quite match this! and its cheaper too! Iridium is even more dificult to machine too!
platinium can't quite match this! and its cheaper too! Iridium is even more dificult to machine too!
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#8
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Because it was a denso plug that dropped on end of into my engine mashing it up
I've been told/read that this has happened quite a few times to people running denso plugs, from what i've read/heard most people stay clear of them now
I've been told/read that this has happened quite a few times to people running denso plugs, from what i've read/heard most people stay clear of them now
#10
I would only ever use NGK or Denso. Never had a problem with either.
#11
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Interesting enough- i had a road rally rs 200 mk2 few years back that had 4 different plug values in it when set up by paul goy racing in lincoln,(ANYONE KNOW THEM IM NOT SURE IF THEY ARE THERE ANYMORE)each cylinder was a different temp so to conmpensate -hence the plugs
#13
It Wasnt Me!
I'd personally bin the platinum/irridium and stick in a set of copper NGK BCR 8ES. Just because they cost a tenner, doesn't mean they are shite/worse than an over priced set of irridium!
#14
Quite true. If the ignition system is up to scratch, it's hard to beat cheap copper plugs. And it isnt as if Cossie plugs are hard to change necessitating precious metal longlife plugs.
#15
I got a sykes picavant spark plug wrench for christmas! so over tightening them won't be an issue when I check on them! I don't use copper grease for the threads, and won't even think about after stu's comments. does any one have any info on what the numbers and letters mean for the temp of the spark plug
#19
With proper coil/coils, they'll light up pretty much anything with a bog standard copper plug
#21
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