Spark plug part numbers for Supercharged engines
#1
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Spark plug part numbers for Supercharged engines
I hate to actually post this since the part numbers *should* be readily available on a sticky or a common post, but...
What are the part numbers of the spark plugs being used on your supercharged engines?
I see that Denso K16TR11s are the stock standard plugs. The NGK equivalents are the BKR5EKB-11s.
All I find in my searching is "one or two degrees colder plugs" in order to retard the "ping" a bit.
A denso Iridium plug model IK22 has also been mentioned in some threads. A look at the Denso chart shows the IK16 to be the "proper" iridium plug for the 3.4. I will assume the IK22 is the "colder" version of the IK16? If so, what is the colder version of the NGK plug?
The "Speedy's Supercharger thread" also mentions reducing the gap from .044 to .033 or less.
I have not checked first hand, but my paperwork from the last dealer service some 40K miles ago show part number TO90919-01192, which is a standard Denso K16TR11 plug for the 3.4 at $2.69 a pop.
As it is probably time to replace those things anyway, I may as well get the right ones.
The funny thing is that my engine doesn't really have a ping problem, so when I get the right plugs, it should be even sweeter.
What are the part numbers of the "colder" plugs you are running in your S/C engines?
What are the part numbers of the spark plugs being used on your supercharged engines?
I see that Denso K16TR11s are the stock standard plugs. The NGK equivalents are the BKR5EKB-11s.
All I find in my searching is "one or two degrees colder plugs" in order to retard the "ping" a bit.
A denso Iridium plug model IK22 has also been mentioned in some threads. A look at the Denso chart shows the IK16 to be the "proper" iridium plug for the 3.4. I will assume the IK22 is the "colder" version of the IK16? If so, what is the colder version of the NGK plug?
The "Speedy's Supercharger thread" also mentions reducing the gap from .044 to .033 or less.
I have not checked first hand, but my paperwork from the last dealer service some 40K miles ago show part number TO90919-01192, which is a standard Denso K16TR11 plug for the 3.4 at $2.69 a pop.
As it is probably time to replace those things anyway, I may as well get the right ones.
The funny thing is that my engine doesn't really have a ping problem, so when I get the right plugs, it should be even sweeter.
What are the part numbers of the "colder" plugs you are running in your S/C engines?
#2
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Yes, suppost to be 2 steps cooler.
I'd like to see some good info on that too.
I'm using the IK22 right now, but they aren't wearing good on the drivers side. More on that here: https://www.yotatech.com/forums/f2/e...h-bank-177019/
I'd like to see some good info on that too.
I'm using the IK22 right now, but they aren't wearing good on the drivers side. More on that here: https://www.yotatech.com/forums/f2/e...h-bank-177019/
#3
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I went back to factory plugs and It runs better than ever.
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I ran the IK-22's for about 6 years with good results. Gap was the out-of-the-box gap they came with. (.032" I think) I just replaced them and gapped them to manufacturer spec but I have been rethinking that. I probably should have stuck with what worked.
I my case the significant wear was on the passenger side. Most of the wire electrode was worn down but the driver side plugs still looked pretty good.
*Edit* Oops. Got my left side mixed up with my other left side. Correction: Significant wear was on the DRIVER side. My bad
I my case the significant wear was on the passenger side. Most of the wire electrode was worn down but the driver side plugs still looked pretty good.
*Edit* Oops. Got my left side mixed up with my other left side. Correction: Significant wear was on the DRIVER side. My bad
Last edited by MAIS0N; 01-01-2010 at 02:34 AM. Reason: Mental Flatulation
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Gap out of the box looks to be around 0.028 to 0.032.
I'm on my second set of IK22's and I think the sweet spot lies somewhere around 0.035 gap. Of course it varies for each application, but I seem to have my best output at or near that range.
Still waiting for the VK22's to come around...
I'm on my second set of IK22's and I think the sweet spot lies somewhere around 0.035 gap. Of course it varies for each application, but I seem to have my best output at or near that range.
Still waiting for the VK22's to come around...
#6
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bkur7et copper core two step cooler plug by ngk. is one recommended by some I run them on my non forced air induction.
this is definitely one you should choose to try a different one for the next couple tune ups and see which one YOU like best
this is definitely one you should choose to try a different one for the next couple tune ups and see which one YOU like best
Last edited by eddieleephd; 12-28-2009 at 10:37 PM.
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Screw the iridiums and go to clubplug.net and order yourself some ngk bcpr7et plugs = 2 steps cooler copper plugs. ITs what gadet used to sell/recomend before the iridiums came out.
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#8
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I get the bkur7et plugs at advanced auto parts and I could have swore at one time this was the number gadget used??? bcpr7et??? or bkur7et???
maybe the difference is that the bkur7et is a tripple ground and the bcpr7et is just dual ground??
both being a two step cooler plug.
GADGET!!!!!!!
Last edited by eddieleephd; 12-28-2009 at 11:34 PM.
#10
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In my case the extra heat of running 10 psi of boost may have made the wear worse. My mileage on these plugs is still low, so I regapped them and will keep an eye on them.
Last edited by mt_goat; 12-29-2009 at 08:06 AM.
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That brings up a good point Dale. If you go to a smaller pulley and increase your boost psi (along with heat), would it be advantageous to open up the gap even more? I've heard about "Blowing out the Wick" on forced induction motors, just curious if it's significant at higher levels of pressure (>7-8 psi).
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Well I just found this chart in the Denso spark plug catalog online on page 5.
Here is the full breakdown of the part numbering system of the denso plugs:
Using this breakdown it would seem that the proper Denso standard copper plug in the two degrees colder version would be the K22TR11, and the NGKs assumably would be BKR7EKB-11. However, I cannot find any reference or link to those plugs.
Here is the full breakdown of the part numbering system of the denso plugs:
Using this breakdown it would seem that the proper Denso standard copper plug in the two degrees colder version would be the K22TR11, and the NGKs assumably would be BKR7EKB-11. However, I cannot find any reference or link to those plugs.
#13
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YouTube video on spark temperatures
This helps explain why colder plugs are helpful in our s/c engines.
http://www.youtube.com/watch?v=LbR75wq9nmM
http://www.youtube.com/watch?v=LbR75wq9nmM
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Went out and looked at the old plugs last night. Really odd. The driver side plugs had almost no iridium post left but the passenger side plugs still had almost the same gap that the were installed with! These plugs have 60k miles on them. I'm running a more conservative 6-7psi boost.
Anybody gone colder yet? Like an IK-24?
Odd, search function doesn't work for "IK-24"...or "IK-(anything)" for that matter.
Anybody gone colder yet? Like an IK-24?
Odd, search function doesn't work for "IK-24"...or "IK-(anything)" for that matter.
Last edited by MAIS0N; 01-01-2010 at 02:38 AM. Reason: Left/Right Up/Down Dysfunction as cited earlier.
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#17
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Well I just found this chart in the Denso spark plug catalog online on page 5.
Here is the full breakdown of the part numbering system of the denso plugs:
Using this breakdown it would seem that the proper Denso standard copper plug in the two degrees colder version would be the K22TR11, and the NGKs assumably would be BKR7EKB-11. However, I cannot find any reference or link to those plugs.
Here is the full breakdown of the part numbering system of the denso plugs:
Using this breakdown it would seem that the proper Denso standard copper plug in the two degrees colder version would be the K22TR11, and the NGKs assumably would be BKR7EKB-11. However, I cannot find any reference or link to those plugs.
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#20
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