---------------------------------------------------------- RV10-List Digest Archive --- Total Messages Posted Sun 04/09/17: 15 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:52 AM - Spark Plugs (Phillip Perry) 2. 08:02 AM - Re: Spark Plugs (Shannon Hicks) 3. 08:03 AM - Re: Spark Plugs (Tim Olson) 4. 08:27 AM - Re: Spark Plugs (Phillip Perry) 5. 08:47 AM - Re: Spark Plugs (Tim Olson) 6. 08:47 AM - Re: Spark Plugs (Shannon Hicks) 7. 08:57 AM - Re: Spark Plugs (Lenny Iszak) 8. 09:40 AM - Re: Spark Plugs (Lenny Iszak) 9. 09:41 AM - Re: Re: Spark Plugs (Kelly McMullen) 10. 10:04 AM - Re: Spark Plugs (Phillip Perry) 11. 10:22 AM - Re: Spark Plugs (Shannon Hicks) 12. 10:56 AM - Re: Spark Plugs (Tim Olson) 13. 11:11 AM - Re: Spark Plugs (Phillip Perry) 14. 11:24 AM - Re: Spark Plugs (Tim Olson) 15. 06:33 PM - Re: Spark Plugs (Albert) ________________________________ Message 1 _____________________________________ Time: 07:52:55 AM PST US From: Phillip Perry Subject: RV10-List: Spark Plugs I was doing a run up the other day and noticed that I had a dead cylinder on #2 when running on the mags. Further checking showed a bad plug... I'm still not completely happy with what I'm seeing as I've seen suspect signs that other cylinders are dropping off intermittently on the mag too. We can get into the trouble shooting in another thread at a future time if this doesn't resolve the issues. At this point, after having found one bad plug and having questions of the others, I'm going to go ahead and replace all 6 (Mag) and then re-test. I suspect the box was dropped in one of the many freight trips they've made over their lifetime. What seems to be the spark plug of choice? I have 9:1 pistons with a Lightspeed Ignition (Top) and a Slick Impulse Mag (Bottom). I've heard mixed reviews on Champion plugs. I've heard great reviews on the Tempest. But I haven't heard any reviews on Tempest Iridium (assuming they exist?) plugs. What seems to be the plug of choice? I'd really like to get to an iridium plug if possible. Currently have Tempest UREM38E. Thanks, Phil ________________________________ Message 2 _____________________________________ Time: 08:02:56 AM PST US From: Shannon Hicks Subject: Re: RV10-List: Spark Plugs Phil, I am running Tempest fine wire in all 12 spots on my engine. I have just over 200 hours with zero issues so far. In fact, they looked brand new when I pulled them at my condition inspection (150ish hrs). The downside is they are insanely expensive. Shannon On Sun, Apr 9, 2017 at 9:55 AM Phillip Perry wrote: > I was doing a run up the other day and noticed that I had a dead cylinder > on #2 when running on the mags. Further checking showed a bad plug... > I'm still not completely happy with what I'm seeing as I've seen suspect > signs that other cylinders are dropping off intermittently on the mag too. > We can get into the trouble shooting in another thread at a future time if > this doesn't resolve the issues. > > At this point, after having found one bad plug and having questions of the > others, I'm going to go ahead and replace all 6 (Mag) and then re-test. I > suspect the box was dropped in one of the many freight trips they've made > over their lifetime. > > What seems to be the spark plug of choice? I have 9:1 pistons with a > Lightspeed Ignition (Top) and a Slick Impulse Mag (Bottom). > > I've heard mixed reviews on Champion plugs. I've heard great reviews on > the Tempest. But I haven't heard any reviews on Tempest Iridium (assuming > they exist?) plugs. > > What seems to be the plug of choice? I'd really like to get to an iridium > plug if possible. Currently have Tempest UREM38E. > > Thanks, > Phil > > ________________________________ Message 3 _____________________________________ Time: 08:03:42 AM PST US From: Tim Olson Subject: Re: RV10-List: Spark Plugs I only go iridium. I just had mine out after 100 hours on the RV14. It came with standard plugs which I replaced before I ran the engine with iridium. I had absolutely no lead fouling on the plugs at 100 hours. Tim > On Apr 9, 2017, at 9:51 AM, Phillip Perry wrote: > > I was doing a run up the other day and noticed that I had a dead cylinder on #2 when running on the mags. Further checking showed a bad plug... I'm still not completely happy with what I'm seeing as I've seen suspect signs that other cylinders are dropping off intermittently on the mag too. We can get into the trouble shooting in another thread at a future time if this doesn't resolve the issues. > > At this point, after having found one bad plug and having questions of the others, I'm going to go ahead and replace all 6 (Mag) and then re-test. I suspect the box was dropped in one of the many freight trips they've made over their lifetime. > > What seems to be the spark plug of choice? I have 9:1 pistons with a Lightspeed Ignition (Top) and a Slick Impulse Mag (Bottom). > > I've heard mixed reviews on Champion plugs. I've heard great reviews on the Tempest. But I haven't heard any reviews on Tempest Iridium (assuming they exist?) plugs. > > What seems to be the plug of choice? I'd really like to get to an iridium plug if possible. Currently have Tempest UREM38E. > > Thanks, > Phil > > > ________________________________ Message 4 _____________________________________ Time: 08:27:47 AM PST US From: Phillip Perry Subject: Re: RV10-List: Spark Plugs Do you know if the Tempest fine wire plugs have iridium electrodes, or are t hey something different? I've checked their site and can't seem to find it mentioned. You'd think th at would be something they'd mention to justify the cost. Sent from my iPhone > On Apr 9, 2017, at 10:02 AM, Shannon Hicks wrote: > > Phil, > I am running Tempest fine wire in all 12 spots on my engine. I have just o ver 200 hours with zero issues so far. In fact, they looked brand new when I pulled them at my condition inspection (150ish hrs). The downside is they a re insanely expensive. > > Shannon > > >> On Sun, Apr 9, 2017 at 9:55 AM Phillip Perry wrote : >> I was doing a run up the other day and noticed that I had a dead cylinder on #2 when running on the mags. Further checking showed a bad plug... I' m still not completely happy with what I'm seeing as I've seen suspect signs that other cylinders are dropping off intermittently on the mag too. We ca n get into the trouble shooting in another thread at a future time if this d oesn't resolve the issues. >> >> At this point, after having found one bad plug and having questions of th e others, I'm going to go ahead and replace all 6 (Mag) and then re-test. I suspect the box was dropped in one of the many freight trips they've made o ver their lifetime. >> >> What seems to be the spark plug of choice? I have 9:1 pistons with a Li ghtspeed Ignition (Top) and a Slick Impulse Mag (Bottom). >> >> I've heard mixed reviews on Champion plugs. I've heard great reviews on t he Tempest. But I haven't heard any reviews on Tempest Iridium (assuming t hey exist?) plugs. >> >> What seems to be the plug of choice? I'd really like to get to an iridiu m plug if possible. Currently have Tempest UREM38E. >> >> Thanks, >> Phil >> >> >> ________________________________ Message 5 _____________________________________ Time: 08:47:23 AM PST US From: Tim Olson Subject: Re: RV10-List: Spark Plugs Yes, the fine wire are iridium. Just be careful to never bend the wire, as i t is very fine and somewhat fragile. At least that's what tempest says, alt hough I've never had an issue with them. Tim > On Apr 9, 2017, at 10:27 AM, Phillip Perry wrote: > > Do you know if the Tempest fine wire plugs have iridium electrodes, or are they something different? > > I've checked their site and can't seem to find it mentioned. You'd think t hat would be something they'd mention to justify the cost. > > > > Sent from my iPhone > >> On Apr 9, 2017, at 10:02 AM, Shannon Hicks wrote: >> >> Phil, >> I am running Tempest fine wire in all 12 spots on my engine. I have just o ver 200 hours with zero issues so far. In fact, they looked brand new when I pulled them at my condition inspection (150ish hrs). The downside is they a re insanely expensive. >> >> Shannon >> >> >>> On Sun, Apr 9, 2017 at 9:55 AM Phillip Perry wrot e: >>> I was doing a run up the other day and noticed that I had a dead cylinde r on #2 when running on the mags. Further checking showed a bad plug... I 'm still not completely happy with what I'm seeing as I've seen suspect sign s that other cylinders are dropping off intermittently on the mag too. We c an get into the trouble shooting in another thread at a future time if this d oesn't resolve the issues. >>> >>> At this point, after having found one bad plug and having questions of t he others, I'm going to go ahead and replace all 6 (Mag) and then re-test. I suspect the box was dropped in one of the many freight trips they've made over their lifetime. >>> >>> What seems to be the spark plug of choice? I have 9:1 pistons with a L ightspeed Ignition (Top) and a Slick Impulse Mag (Bottom). >>> >>> I've heard mixed reviews on Champion plugs. I've heard great reviews on the Tempest. But I haven't heard any reviews on Tempest Iridium (assuming they exist?) plugs. >>> >>> What seems to be the plug of choice? I'd really like to get to an iridi um plug if possible. Currently have Tempest UREM38E. >>> >>> Thanks, >>> Phil ________________________________ Message 6 _____________________________________ Time: 08:47:57 AM PST US From: Shannon Hicks Subject: Re: RV10-List: Spark Plugs I really don't think so, but I'm not sure. Shannon On Sun, Apr 9, 2017 at 10:31 AM Phillip Perry wrote: > Do you know if the Tempest fine wire plugs have iridium electrodes, or are > they something different? > > I've checked their site and can't seem to find it mentioned. You'd think > that would be something they'd mention to justify the cost. > > > Sent from my iPhone > > On Apr 9, 2017, at 10:02 AM, Shannon Hicks wrote: > > Phil, > I am running Tempest fine wire in all 12 spots on my engine. I have just > over 200 hours with zero issues so far. In fact, they looked brand new when > I pulled them at my condition inspection (150ish hrs). The downside is they > are insanely expensive. > > Shannon > > > On Sun, Apr 9, 2017 at 9:55 AM Phillip Perry wrote: > > I was doing a run up the other day and noticed that I had a dead cylinder > on #2 when running on the mags. Further checking showed a bad plug... > I'm still not completely happy with what I'm seeing as I've seen suspect > signs that other cylinders are dropping off intermittently on the mag too. > We can get into the trouble shooting in another thread at a future time if > this doesn't resolve the issues. > > At this point, after having found one bad plug and having questions of the > others, I'm going to go ahead and replace all 6 (Mag) and then re-test. I > suspect the box was dropped in one of the many freight trips they've made > over their lifetime. > > What seems to be the spark plug of choice? I have 9:1 pistons with a > Lightspeed Ignition (Top) and a Slick Impulse Mag (Bottom). > > I've heard mixed reviews on Champion plugs. I've heard great reviews on > the Tempest. But I haven't heard any reviews on Tempest Iridium (assuming > they exist?) plugs. > > What seems to be the plug of choice? I'd really like to get to an iridium > plug if possible. Currently have Tempest UREM38E. > > Thanks, > Phil > > ________________________________ Message 7 _____________________________________ Time: 08:57:58 AM PST US Subject: RV10-List: Re: Spark Plugs From: "Lenny Iszak" I have around 200 hours on the Tempest UREM38S finewire plugs. They always look clean and the engine is idling much smoother. I was concerned at first seeing how those center iridium electrodes were welded in. I was told by Tempest and a bunch of others who were running these for hundreds of hours that they never come apart. Ordered 12 of them. One of them had a really bad weld. Called them up and they overnighted me a new one. Tempest is awesome! Yes, they are expensive but long therm these are the cheaper ones. Be very careful trying to gap these plugs, when you bend the iridium electrode it can pop off the weld... Lenny Read this topic online here: http://forums.matronics.com/viewtopic.php?p=468191#468191 ________________________________ Message 8 _____________________________________ Time: 09:40:04 AM PST US Subject: RV10-List: Re: Spark Plugs From: "Lenny Iszak" Hm, looks like a missed marketing opportunity for them:) It's mentioned here: http://www.tempestplus.com/Portals/0/PDFs/Tempest%20Spark%20Plugs%20-%20Where%20its%20made.pdf and here: http://www.tempestplus.com/Portals/0/PDFs/Temepst%20OilFilter-SparkPlug%204page.pdf and here (page 6) they talk about not bending the iridium electrodes: http://www.tempestplus.com/Portals/0/PDFs/TechTips/Light%20My%20Fire%200813.pdf Lenny philperry9 wrote: > Do you know if the Tempest fine wire plugs have iridium electrodes, or are they something different? > > > I've checked their site and can't seem to find it mentioned. You'd think that would be something they'd mention to justify the cost. > > Read this topic online here: http://forums.matronics.com/viewtopic.php?p=468193#468193 ________________________________ Message 9 _____________________________________ Time: 09:41:23 AM PST US Subject: Re: RV10-List: Re: Spark Plugs From: Kelly McMullen Well, in spite of my requesting Tempest plugs, my overhaul shop installed new Champions. Later, I acquired at low cost 8 champion iridium plugs. I installed 6 of the iridium as soon as I got them on the top positions.So I have a mixed bag. I pulled the plugs for my condition inspection at 90 hours. All looked good. One massive tested high resistance (about 7.5K) so it was replaced. I have never seen more than 120 rpm drop on runups, mostly 100-110. I have no lead balls at all, no issues. I will eventually get some Tempest, but I'm not going to go drop $900 on fine wires that are not needed. I know the resistors in the Champions are likely to fail before the electrodes do. I may go to some electronic system for one side eventually, but my Bendix S-1200 have performed flawlessly. On 4/9/2017 8:55 AM, Lenny Iszak wrote: > > I have around 200 hours on the Tempest UREM38S finewire plugs. They always look clean and the engine is idling much smoother. I was concerned at first seeing how those center iridium electrodes were welded in. I was told by Tempest and a bunch of others who were running these for hundreds of hours that they never come apart. Ordered 12 of them. One of them had a really bad weld. Called them up and they overnighted me a new one. Tempest is awesome! > > Yes, they are expensive but long therm these are the cheaper ones. > > Be very careful trying to gap these plugs, when you bend the iridium electrode it can pop off the weld... > > Lenny > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=468191#468191 > > ________________________________ Message 10 ____________________________________ Time: 10:04:10 AM PST US From: Phillip Perry Subject: Re: RV10-List: Spark Plugs So I'm guessing they come pre-gapped? Sent from my iPhone > On Apr 9, 2017, at 10:39 AM, Tim Olson wrote: > > Yes, the fine wire are iridium. Just be careful to never bend the wire, a s it is very fine and somewhat fragile. At least that's what tempest says, a lthough I've never had an issue with them. > Tim > >> On Apr 9, 2017, at 10:27 AM, Phillip Perry wrote: >> >> Do you know if the Tempest fine wire plugs have iridium electrodes, or ar e they something different? >> >> I've checked their site and can't seem to find it mentioned. You'd think that would be something they'd mention to justify the cost. >> >> >> >> Sent from my iPhone >> >>> On Apr 9, 2017, at 10:02 AM, Shannon Hicks wrote: >>> >>> Phil, >>> I am running Tempest fine wire in all 12 spots on my engine. I have just over 200 hours with zero issues so far. In fact, they looked brand new when I pulled them at my condition inspection (150ish hrs). The downside is they are insanely expensive. >>> >>> Shannon >>> >>> >>>> On Sun, Apr 9, 2017 at 9:55 AM Phillip Perry wro te: >>>> I was doing a run up the other day and noticed that I had a dead cylind er on #2 when running on the mags. Further checking showed a bad plug... I 'm still not completely happy with what I'm seeing as I've seen suspect sign s that other cylinders are dropping off intermittently on the mag too. We c an get into the trouble shooting in another thread at a future time if this d oesn't resolve the issues. >>>> >>>> At this point, after having found one bad plug and having questions of t he others, I'm going to go ahead and replace all 6 (Mag) and then re-test. I suspect the box was dropped in one of the many freight trips they've made over their lifetime. >>>> >>>> What seems to be the spark plug of choice? I have 9:1 pistons with a L ightspeed Ignition (Top) and a Slick Impulse Mag (Bottom). >>>> >>>> I've heard mixed reviews on Champion plugs. I've heard great reviews o n the Tempest. But I haven't heard any reviews on Tempest Iridium (assumin g they exist?) plugs. >>>> >>>> What seems to be the plug of choice? I'd really like to get to an irid ium plug if possible. Currently have Tempest UREM38E. >>>> >>>> Thanks, >>>> Phil >>>> >>>> >>>> ________________________________ Message 11 ____________________________________ Time: 10:22:43 AM PST US From: Shannon Hicks Subject: Re: RV10-List: Spark Plugs They do. Shannon On Apr 9, 2017 12:08 PM, "Phillip Perry" wrote: > So I'm guessing they come pre-gapped? > > Sent from my iPhone > > On Apr 9, 2017, at 10:39 AM, Tim Olson wrote: > > Yes, the fine wire are iridium. Just be careful to never bend the wire, > as it is very fine and somewhat fragile. At least that's what tempest > says, although I've never had an issue with them. > Tim > > On Apr 9, 2017, at 10:27 AM, Phillip Perry wrote: > > Do you know if the Tempest fine wire plugs have iridium electrodes, or are > they something different? > > I've checked their site and can't seem to find it mentioned. You'd think > that would be something they'd mention to justify the cost. > > > Sent from my iPhone > > On Apr 9, 2017, at 10:02 AM, Shannon Hicks wrote: > > Phil, > I am running Tempest fine wire in all 12 spots on my engine. I have just > over 200 hours with zero issues so far. In fact, they looked brand new when > I pulled them at my condition inspection (150ish hrs). The downside is they > are insanely expensive. > > Shannon > > > On Sun, Apr 9, 2017 at 9:55 AM Phillip Perry wrote: > >> I was doing a run up the other day and noticed that I had a dead cylinder >> on #2 when running on the mags. Further checking showed a bad plug... >> I'm still not completely happy with what I'm seeing as I've seen suspect >> signs that other cylinders are dropping off intermittently on the mag too. >> We can get into the trouble shooting in another thread at a future time if >> this doesn't resolve the issues. >> >> At this point, after having found one bad plug and having questions of >> the others, I'm going to go ahead and replace all 6 (Mag) and then re-test. >> I suspect the box was dropped in one of the many freight trips they've >> made over their lifetime. >> >> What seems to be the spark plug of choice? I have 9:1 pistons with a >> Lightspeed Ignition (Top) and a Slick Impulse Mag (Bottom). >> >> I've heard mixed reviews on Champion plugs. I've heard great reviews on >> the Tempest. But I haven't heard any reviews on Tempest Iridium (assuming >> they exist?) plugs. >> >> What seems to be the plug of choice? I'd really like to get to an >> iridium plug if possible. Currently have Tempest UREM38E. >> >> Thanks, >> Phil >> >> >> >> ________________________________ Message 12 ____________________________________ Time: 10:56:27 AM PST US From: Tim Olson Subject: Re: RV10-List: Spark Plugs That is basically what I found in all of the ones that I have purchased. I d id not need to gap them at all as they were already in spec. As Lenny just p roved, yes they are iridium for sure. All of the fine wire plugs would be, b ecause the regular steel would erode too quickly. For all practical purposes, the Arabian plugs will not grown at all. That is why they last so long. The extra open area around the electrode only enhanc es the ability or the plug to fire the fuel. So that is why people report b etter performance or better idling. Tim > On Apr 9, 2017, at 12:03 PM, Phillip Perry wrote: > > So I'm guessing they come pre-gapped? > > Sent from my iPhone > >> On Apr 9, 2017, at 10:39 AM, Tim Olson wrote: >> >> Yes, the fine wire are iridium. Just be careful to never bend the wire, a s it is very fine and somewhat fragile. At least that's what tempest says, a lthough I've never had an issue with them. >> Tim >> >>> On Apr 9, 2017, at 10:27 AM, Phillip Perry wrote: >>> >>> Do you know if the Tempest fine wire plugs have iridium electrodes, or a re they something different? >>> >>> I've checked their site and can't seem to find it mentioned. You'd thin k that would be something they'd mention to justify the cost. >>> >>> >>> >>> Sent from my iPhone >>> >>>> On Apr 9, 2017, at 10:02 AM, Shannon Hicks wrote: >>>> >>>> Phil, >>>> I am running Tempest fine wire in all 12 spots on my engine. I have jus t over 200 hours with zero issues so far. In fact, they looked brand new whe n I pulled them at my condition inspection (150ish hrs). The downside is the y are insanely expensive. >>>> >>>> Shannon >>>> >>>> >>>>> On Sun, Apr 9, 2017 at 9:55 AM Phillip Perry wr ote: >>>>> I was doing a run up the other day and noticed that I had a dead cylin der on #2 when running on the mags. Further checking showed a bad plug... I'm still not completely happy with what I'm seeing as I've seen suspect si gns that other cylinders are dropping off intermittently on the mag too. We can get into the trouble shooting in another thread at a future time if thi s doesn't resolve the issues. >>>>> >>>>> At this point, after having found one bad plug and having questions of the others, I'm going to go ahead and replace all 6 (Mag) and then re-test. I suspect the box was dropped in one of the many freight trips they've ma de over their lifetime. >>>>> >>>>> What seems to be the spark plug of choice? I have 9:1 pistons with a Lightspeed Ignition (Top) and a Slick Impulse Mag (Bottom). >>>>> >>>>> I've heard mixed reviews on Champion plugs. I've heard great reviews o n the Tempest. But I haven't heard any reviews on Tempest Iridium (assumin g they exist?) plugs. >>>>> >>>>> What seems to be the plug of choice? I'd really like to get to an iri dium plug if possible. Currently have Tempest UREM38E. >>>>> >>>>> Thanks, >>>>> Phil ________________________________ Message 13 ____________________________________ Time: 11:11:40 AM PST US From: Phillip Perry Subject: Re: RV10-List: Spark Plugs Got them ordered and they should be here next week. I'll tell the kids they're just going to have to work harder in school and get a scholarship. On Sun, Apr 9, 2017 at 12:55 PM, Tim Olson wrote: > That is basically what I found in all of the ones that I have purchased. I > did not need to gap them at all as they were already in spec. As Lenny > just proved, yes they are iridium for sure. All of the fine wire plugs > would be, because the regular steel would erode too quickly. > For all practical purposes, the Arabian plugs will not grown at all. That > is why they last so long. The extra open area around the electrode only > enhances the ability or the plug to fire the fuel. So that is why people > report better performance or better idling. > Tim > > On Apr 9, 2017, at 12:03 PM, Phillip Perry wrote: > > So I'm guessing they come pre-gapped? > > Sent from my iPhone > > On Apr 9, 2017, at 10:39 AM, Tim Olson wrote: > > Yes, the fine wire are iridium. Just be careful to never bend the wire, > as it is very fine and somewhat fragile. At least that's what tempest > says, although I've never had an issue with them. > Tim > > On Apr 9, 2017, at 10:27 AM, Phillip Perry wrote: > > Do you know if the Tempest fine wire plugs have iridium electrodes, or are > they something different? > > I've checked their site and can't seem to find it mentioned. You'd think > that would be something they'd mention to justify the cost. > > > Sent from my iPhone > > On Apr 9, 2017, at 10:02 AM, Shannon Hicks wrote: > > Phil, > I am running Tempest fine wire in all 12 spots on my engine. I have just > over 200 hours with zero issues so far. In fact, they looked brand new when > I pulled them at my condition inspection (150ish hrs). The downside is they > are insanely expensive. > > Shannon > > > On Sun, Apr 9, 2017 at 9:55 AM Phillip Perry wrote: > >> I was doing a run up the other day and noticed that I had a dead cylinder >> on #2 when running on the mags. Further checking showed a bad plug... >> I'm still not completely happy with what I'm seeing as I've seen suspect >> signs that other cylinders are dropping off intermittently on the mag too. >> We can get into the trouble shooting in another thread at a future time if >> this doesn't resolve the issues. >> >> At this point, after having found one bad plug and having questions of >> the others, I'm going to go ahead and replace all 6 (Mag) and then re-test. >> I suspect the box was dropped in one of the many freight trips they've >> made over their lifetime. >> >> What seems to be the spark plug of choice? I have 9:1 pistons with a >> Lightspeed Ignition (Top) and a Slick Impulse Mag (Bottom). >> >> I've heard mixed reviews on Champion plugs. I've heard great reviews on >> the Tempest. But I haven't heard any reviews on Tempest Iridium (assuming >> they exist?) plugs. >> >> What seems to be the plug of choice? I'd really like to get to an >> iridium plug if possible. Currently have Tempest UREM38E. >> >> Thanks, >> Phil >> >> >> >> ________________________________ Message 14 ____________________________________ Time: 11:24:47 AM PST US From: Tim Olson Subject: Re: RV10-List: Spark Plugs ;). Look at it this way, you are protecting your ability to pay for college. Because you will replace spark plugs far less often, and they are less less likely to fail. These may go to TBO. Tim > On Apr 9, 2017, at 1:11 PM, Phillip Perry wrote: > > Got them ordered and they should be here next week. I'll tell the kids th ey're just going to have to work harder in school and get a scholarship. > > >> On Sun, Apr 9, 2017 at 12:55 PM, Tim Olson wrote: >> That is basically what I found in all of the ones that I have purchased. I did not need to gap them at all as they were already in spec. As Lenny jus t proved, yes they are iridium for sure. All of the fine wire plugs would be , because the regular steel would erode too quickly. >> For all practical purposes, the Arabian plugs will not grown at all. That is why they last so long. The extra open area around the electrode only enh ances the ability or the plug to fire the fuel. So that is why people repor t better performance or better idling. >> Tim >> >>> On Apr 9, 2017, at 12:03 PM, Phillip Perry wrote: >>> >>> So I'm guessing they come pre-gapped? >>> >>> Sent from my iPhone >>> >>>> On Apr 9, 2017, at 10:39 AM, Tim Olson wrote: >>>> >>>> Yes, the fine wire are iridium. Just be careful to never bend the wire , as it is very fine and somewhat fragile. At least that's what tempest say s, although I've never had an issue with them. >>>> Tim >>>> >>>>> On Apr 9, 2017, at 10:27 AM, Phillip Perry wrot e: >>>>> >>>>> Do you know if the Tempest fine wire plugs have iridium electrodes, or are they something different? >>>>> >>>>> I've checked their site and can't seem to find it mentioned. You'd th ink that would be something they'd mention to justify the cost. >>>>> >>>>> >>>>> >>>>> Sent from my iPhone >>>>> >>>>>> On Apr 9, 2017, at 10:02 AM, Shannon Hicks wrot e: >>>>>> >>>>>> Phil, >>>>>> I am running Tempest fine wire in all 12 spots on my engine. I have j ust over 200 hours with zero issues so far. In fact, they looked brand new w hen I pulled them at my condition inspection (150ish hrs). The downside is t hey are insanely expensive. >>>>>> >>>>>> Shannon >>>>>> >>>>>> >>>>>>> On Sun, Apr 9, 2017 at 9:55 AM Phillip Perry w rote: >>>>>>> I was doing a run up the other day and noticed that I had a dead cyl inder on #2 when running on the mags. Further checking showed a bad plug.. . I'm still not completely happy with what I'm seeing as I've seen suspect s igns that other cylinders are dropping off intermittently on the mag too. W e can get into the trouble shooting in another thread at a future time if th is doesn't resolve the issues. >>>>>>> >>>>>>> At this point, after having found one bad plug and having questions o f the others, I'm going to go ahead and replace all 6 (Mag) and then re-test . I suspect the box was dropped in one of the many freight trips they've m ade over their lifetime. >>>>>>> >>>>>>> What seems to be the spark plug of choice? I have 9:1 pistons with a Lightspeed Ignition (Top) and a Slick Impulse Mag (Bottom). >>>>>>> >>>>>>> I've heard mixed reviews on Champion plugs. I've heard great review s on the Tempest. But I haven't heard any reviews on Tempest Iridium (assu ming they exist?) plugs. >>>>>>> >>>>>>> What seems to be the plug of choice? I'd really like to get to an i ridium plug if possible. Currently have Tempest UREM38E. >>>>>>> >>>>>>> Thanks, >>>>>>> Phil > ________________________________ Message 15 ____________________________________ Time: 06:33:13 PM PST US From: "Albert" Subject: RE: RV10-List: Spark Plugs I went through a period of intermittent ignition problems: first on the lightspeed and later on the mag. Major cause of both turned out to be the wires. Albert Gardner RV-10 N991RV Yuma, AZ From: owner-rv10-list-server@matronics.com [mailto:owner-rv10-list-server@matronics.com] On Behalf Of Phillip Perry Sent: Sunday, April 09, 2017 7:52 AM Subject: RV10-List: Spark Plugs I was doing a run up the other day and noticed that I had a dead cylinder on #2 when running on the mags. Further checking showed a bad plug... I'm still not completely happy with what I'm seeing as I've seen suspect signs that other cylinders are dropping off intermittently on the mag too. We can get into the trouble shooting in another thread at a future time if this doesn't resolve the issues. At this point, after having found one bad plug and having questions of the others, I'm going to go ahead and replace all 6 (Mag) and then re-test. I suspect the box was dropped in one of the many freight trips they've made over their lifetime. What seems to be the spark plug of choice? I have 9:1 pistons with a Lightspeed Ignition (Top) and a Slick Impulse Mag (Bottom). I've heard mixed reviews on Champion plugs. I've heard great reviews on the Tempest. But I haven't heard any reviews on Tempest Iridium (assuming they exist?) plugs. What seems to be the plug of choice? I'd really like to get to an iridium plug if possible. Currently have Tempest UREM38E. Thanks, Phil ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv10-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV10-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rv10-list Browse Digests http://www.matronics.com/digest/rv10-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.