Iridium plugs

[Wangit]

Hi, just thought I would show a close up of a NGK DPR8EIX-9 IRIDIUM PLUG, next to a standard type.
For those who may have wondered what they look like. They look good but will I be able to tell the difference.
Bob
[img][/img] [img][/img]

[StumpyFingers]

I think they are designed to last longer and give a better flash pattern

[BobA]

Bob

I don't know if it's my imagination, but I reckon they made my bike slightly smoother.

There's lots of claims about improved economy, but I didn't find this at all.

I'm just hoping they live up to the claim of a longer life.



Bob

[AlanH]

Here's the pic...

[ATrider]

Tested the Iridium plugs last time. No difference at all (what I could notice).
And some people say that the bike runs smoother, but did they compare them to brand new regular sparks? No, against the old/used spark plugs.

Talked to a superbike mechanic about iridium plugs and he said that they could not find and noticeable difference between them.

[Jeff Kirby]

From my limited knowledge, these plugs will make a difference to highly tuned engines, that cannot be said about the @.............! I wouldn't bother and would stick to the standard

[tedmagnum]

Yer.. they give improved burn at very high temperatures in high compression engines...

On an AT.... A waste of dosh im afraid.

[Wangit]

Well I have now had a few days with them and I have got to say they do feel different, not a huge difference, but mainly I noticed they seemed to have a quicker and smoother response. Mind you I was ready to change my plugs. I think if I change back to standard plugs next time, I should feel a performance drop, if they were genuinely improving things. I think this is always easier to feel than a performance gain.
Bob