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Iridium Plugs https://www.ausmini.com/forums/viewtopic.php?f=2&t=19716 |
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Author: | slide [ Wed May 31, 2006 9:08 am ] |
Post subject: | Iridium Plugs |
Anyone used these NGK Iridium plugs? Supposed to be good for over 100k with all sorts of claimed advantages over conventional types. On sale at Super C for $15 each. |
Author: | LS1380 [ Wed May 31, 2006 9:20 am ] |
Post subject: | |
Yes-Been using for 12months now-Using Denso Iridium -Number IW20. Have had no probs with them ![]() |
Author: | PetenSoaf [ Wed May 31, 2006 11:41 am ] |
Post subject: | |
Remember that iridium or platinum plugs are really only for increasing the spark plug service interval - they can in fact lower the power of your engine. . . Essentially, platinum or iridium is harder and more conductive than iron or copper used in conventional plugs. . .this means that less voltage is required to produce a spark. . .but it also means that the spark is weaker. This can be overcome by widening the plug gap to produce a fatter, more powerful spark BUT. . .if you regap a platinum or iridium plugs, you chop all the iridium or platinum coating off, and turn your $15 plugs into ordinary $2 ones. . .(the platinum or iridium coating is only a few microns thick). I personally reckon a properly gapped set of copper plugs (at a couple of dollars a pop) changed every 10 or 15 thousand km is the way to go. . .but then if you're more concerned with a long service interval than performance, the platinums or iridiums will are definately the way to go! |
Author: | jbeenz [ Wed May 31, 2006 11:59 am ] |
Post subject: | |
ive only ever hear of them used in cars like legacy gt's where changing the plugs is a hell of a job and involves lots of paid time. id wory about the mini running to rich and destroying them, or is this not an issue with them? |
Author: | poeee [ Wed May 31, 2006 12:20 pm ] |
Post subject: | |
LS1380 wrote: Yes-Been using for 12months now-Using Denso Iridium -Number IW20.
Have had no probs with them ![]() What's a set of these worth? I've got a Denso Iridium lanyard with a set of keys for my 1275 LS on it. I got it from the GP in 05, hehe. Maybe I might get the plugs to match! |
Author: | clubby123 [ Wed May 31, 2006 1:20 pm ] |
Post subject: | |
i just get the NGK BP6ES of the top of my head and change them every few months, what should these be gapped to??? |
Author: | mini_van_1970 [ Wed May 31, 2006 1:38 pm ] |
Post subject: | |
ben they are sposed to be gapped to 35 thou or .625 if i remember right thats what it is off the top of my head i mean I am at school atm so I can't check for you Pat |
Author: | jbeenz [ Wed May 31, 2006 1:42 pm ] |
Post subject: | |
i thought 25 thou, but i usualy buy bosh ones and bung em straight in ![]() ![]() |
Author: | clubby123 [ Wed May 31, 2006 1:57 pm ] |
Post subject: | |
the guy at auto barn told me .8 and i was like i dont think so tim ![]() |
Author: | drmini in aust [ Wed May 31, 2006 6:01 pm ] |
Post subject: | |
.025" correct for stock ignition, but if you are running a Pertronix ignitor or a Pulsar dizzy, you can use UP TO .040". I run .035" with my Pulsars, allows for a bit of plug wear. ![]() I had Iridiums in my AU Ford when bought, but they had worn out to .080" gap and mileage was crap. ![]() I gapped them to 1.1mm and much better. ![]() Now running stocko NGKs in it... ![]() |
Author: | LS1380 [ Wed May 31, 2006 7:45 pm ] |
Post subject: | |
poeee wrote: LS1380 wrote: Yes-Been using for 12months now-Using Denso Iridium -Number IW20. Have had no probs with them ![]() What's a set of these worth? I've got a Denso Iridium lanyard with a set of keys for my 1275 LS on it. I got it from the GP in 05, hehe. Maybe I might get the plugs to match! Appox $60.00. ![]() |
Author: | slide [ Thu Jun 01, 2006 9:46 am ] |
Post subject: | |
I run NGKs in all the cars - 035 on the Mini Van with Lumenition electtronic igniton and up to 040 on the Rover with Lumenition + MSD amplifier. NGK and Nippon Denso seem to be the best pugs around IMHO. Don't like Bosch or Champion. Anyone tried AC Delco? |
Author: | PetenSoaf [ Thu Jun 01, 2006 10:54 am ] |
Post subject: | |
slide wrote: NGK and Nippon Denso seem to be the best pugs around IMHO. Don't like Bosch or Champion.
Funny, I've always found Champion Gold plugs (just normal old copper plugs - about $3 each) to be as good as annything out there. . .on Minis, turbo cars, whatever. . . |
Author: | minstar [ Thu Jun 01, 2006 3:43 pm ] |
Post subject: | |
In the starlet iridiums are standard, the other issue is they are good for turbos as they are also heat rated (at least the ones for Starlets). I think you are really only getting any advantage if you run a full electronic ignition on stardard mini setup they are pretty much underutilised. Cheers Matt |
Author: | GeoffP [ Thu Jun 01, 2006 8:04 pm ] |
Post subject: | |
I wonder how easy it would be to remove plugs that had been in there for the whole 132000km that they're supposed to be good for? might be a tad stuck... |
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