entropy
Moderator
Posts: 8671
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posted April 05, 2007 11:56 PM
grandpa died: I had to make a choice; house or sparkplugs?
I took the plugs 
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zrxdean
Needs a job
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posted April 06, 2007 06:57 AM
That's a tough one, but I think you chose wisely :P
I pulled the plugs out of the ZX10 when I got it, and they are iridiumd from the factory. Itty bitty little electrode, doesn't look like it would last 2 sec with spray. Anyone sprayed these plugs?
Dean
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zrxdean
Needs a job
Posts: 2225
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posted April 06, 2007 07:50 AM
Googled, seems to be OK to spray these puppies.
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entropy
Moderator
Posts: 8671
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posted April 06, 2007 07:54 AM
Dean,
on these denso's i think that one part of the electrode is irid, the other is plat, and as i understand it plat don't like N2O, no.
These are an experiment for hi CR ignition improvement..
Besides, who could resist those cute lil cases?
Garage Barbies approved.
an i'm not spraying (yet)
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MadMike
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posted April 06, 2007 08:10 AM
Bergie said NO WAY on spraying these... if I remember correctly!
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zrxdean
Needs a job
Posts: 2225
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posted April 06, 2007 08:34 AM
 Edited By: zrxdean on 6 Apr 2007 09:35
Hmm, maybe the Denso plat/irid are no go, but NGK thinks the OEM irid plugs are OK;
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MadMike
Moderator
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posted April 06, 2007 02:20 PM
I could have remembered incorrectly!!! I thought the melting temp was way high!
MM
Thanks Dean for the info!!!
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NOX
Needs a job
PMRA / TMRC Super Street 4022
Posts: 3745
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posted April 06, 2007 02:46 PM
Thats what they do to the plugs on the PS cars, SS cars, and Stock eliminator cars to make em run a hair harder if they need it.......
Just cut the electode off......., its worth quite a bit in the quarter on my father in laws A/SA entry.
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tcchin
Zone Head
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posted April 06, 2007 02:49 PM
Note that the NGK R0373A-11 is similar in construction to the IU01-34, with an iridium center electrode and a platinum ground electrode. I would imagine that it would be covered by the statement above.
Also note that I called Denso tech support, as well as sparkplugs.com tech support, and they both said they've heard of no issues with these plugs with nitrous. Atmospheric air is 78% nitrogen and 21% oxygen after all, so I don't see that anything foreign is being introduced to the combustion process with nitrous oxide.
The only rumors I could find were related to platinum wafers that were bonded to the electrode surfaces coming loose and causing collateral damage. I could find no hard data on the specific problems relating to other platinum/nitrous oxide interactions.
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entropy
Moderator
Posts: 8671
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posted April 06, 2007 05:47 PM
Tim,
my email seems scooched so i couldn't respond to yr suggestion on the valve spring shims at MMC. But i did find a buncha 12x24mm x .010" RaceTech shims in Andy's spare parts stuff and they fit fine. Now i just gotta get some more (hopefully an assortment of thicknesses)
Karl
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zrxdean
Needs a job
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posted April 06, 2007 10:12 PM
quote:
Note that the NGK R0373A-11 is similar in construction to the IU01-34, with an iridium center electrode and a platinum ground electrode. I would imagine that it would be covered by the statement above.
Also note that I called Denso tech support, as well as sparkplugs.com tech support, and they both said they've heard of no issues with these plugs with nitrous. Atmospheric air is 78% nitrogen and 21% oxygen after all, so I don't see that anything foreign is being introduced to the combustion process with nitrous oxide.
The only rumors I could find were related to platinum wafers that were bonded to the electrode surfaces coming loose and causing collateral damage. I could find no hard data on the specific problems relating to other platinum/nitrous oxide interactions.
Thanks for the info and confirmation. Away I spray on iridium plugs, real world data to follow. -Dean
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tcchin
Zone Head
Posts: 867
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posted April 06, 2007 11:18 PM
Edited By: tcchin on 7 Apr 2007 01:49
BTW, I like the composition in the photos: WD-40, Redline CV-2 grease, a valve spring compressor, what appears to be an 80 fl oz Bud Light minikeg, a Mitutoyo digital caliper, and $150-worth of spark plugs. I was disappointed by the lack of homoerotic Garage Barbie content, but sometimes enough beer and lubricant makes up for that.
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entropy
Moderator
Posts: 8671
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posted April 07, 2007 12:55 AM
quote:
the lack of homoerotic Garage Barbie content,
i had Homeland Security pick up the garage Barbies for questioning.
My deep 1/4" drive 10mm socket is missing and i think al Qaeda is behind it.
I'm guessing the garage Barbies were converted.
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Wideout
Expert Class
Posts: 300
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posted April 07, 2007 04:45 PM
Watch out. Your wife said there were many more members up in your daughter's old room.
You had that evil grin when she told us. But I think those things are up to no good.
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Seth ZX12r UK
Expert Class
Posts: 238
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posted April 08, 2007 12:59 AM
stock CR9EK's are just as good if not better
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entropy
Moderator
Posts: 8671
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posted April 08, 2007 04:10 PM
quote:
stock CR9EK's are just as good if not better
for any application??? any CR????
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tcchin
Zone Head
Posts: 867
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posted April 08, 2007 04:41 PM
I agree, except for the "just as good if" part.
This is a motor producing ~40% more power than stock. Each heat range colder rejects an additional 80-100*C from the combustion chamber, which is critical in this application. Also, the electrode design facilitates firing under adverse conditions.
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