[Zomb13]

NGK Racing doesn't, not familiar with HKS Racing...

I actually have a set of NGK Racing to drop in this weekend.


Sent from my ST with love.

 

[theJasonO]

so are the factory plugs equivalents to the itv22s or naw? probably going to order the 24s tonight.

 

[UnfocusedST]

22s are one step colder and 24s are two steps colder.

Sent from another galaxy.

 

[theJasonO]

22s are one step colder and 24s are two steps colder.

Sent from another galaxy.

22s ordered, thanks walmart

 

[ScorpioST]

Pulled my plugs today at 43,500 miles, replaced with ITV22's. They all look the same and look fine, however I noticed these little built-up circles under the ground electrode. Anyone know what this is/means? I think they show up in the one pic.

 

[Quantim0]

Any idea how often we should be replacing the ITV22s on a tuned car?

 

[MatthewAMEL]

Any idea how often we should be replacing the ITV22s on a tuned car?

I pulled mine after 10,000 miles (on the plugs) to check gap and general condition. All good.

I run a mild (Steeda) tune and 93 or better gas.

 

[Quantim0]

Just pulled my #2 plug which is my cylinder that has the most knock. ITV22 on for 7k miles. Any thoughts?

 

[boostedzx2]

Just pulled my #2 plug which is my cylinder that has the most knock. ITV22 on for 7k miles. Any thoughts? <img src="http://www.focusst.org/forum/attachment.php?attachmentid=93900"/><img src="http://www.focusst.org/forum/attachment.php?attachmentid=93901"/>

Yup looks normal

 

[Freebird23103]

Any idea how often we should be replacing the ITV22s on a tuned car?

I have been trying to find out how long they last also, their website I was unable to locate that info. Anyone know what the life span mileage is on these plugs Denso ITV-22?

 

[KristianST]

I have been trying to find out how long they last also, their website I was unable to locate that info. Anyone know what the life span mileage is on these plugs Denso ITV-22?

I replaced mine after 15k

 

[OSeaD]

I'm running a BT and WMI and the ITV-22 only lasted 7500 miles. Checked them and had lost .003" already. This was my second set. Going with ITV-24 this time.

 

[Freebird23103]

Thought I would share this so maybe it will help someone out. I pulled my denso's out to check and re gap them yesterday. All four plugs looked good but 2 of them has a black oily substance on the base of the plug and base of the threads, but the rest of the plug 3/4 of threads leading down to the electrode and electrode was dry and clean.

I was like wtf??? Gap the plugs and re install. Thought about it today and after discussing it with Hemicouple I figured it out....

If you spill oil when pouring it in the funnel and it runs all down the outside of the fill tube during an oil change .... Pretty sure the base of your 2 plugs closest to the fill tube will ... well you get the picture :smile:

 

[SiThlord]

Build date: 2014.5
Odo: 14645
Mods: fr tune, steeda fmic
Plugs: itv-24's

Plugs are 1-4 L-R

Plug two worries me a bit.

Can anyone offer some insight as to why #2 would have less of a "sooty" look around the edges and maybe some more peppering on the porcelain?

Datalogging via dash command and no issues detected and she runs like a top.

 

[MatthewAMEL]

The plugs look fine to me.

Can't see the electrode in the provided pic. How was the gap when you checked them?

 

[SiThlord]

The plugs look fine to me. Can't see the electrode in the provided pic. How was the gap when you checked them?

Sorry I don't know why left that out, .028. The electrodes looked all the same and can really only be seen on plug 4 (barely). I didn't get a pic of the electrodes head on, doh!

I reset the KAM and went for a nice drive, things ran smoothly. Monitoring I didn't see any problems either. Compression is good through all 4.

 

[Freebird23103]

Sorry I don't know why left that out, .028. The electrodes looked all the same and can really only be seen on plug 4 (barely). I didn't get a pic of the electrodes head on, doh!

I reset the KAM and went for a nice drive, things ran smoothly. Monitoring I didn't see any problems either. Compression is good through all 4.





View attachment 104097

I agree, those plugs look fine, how many miles on them and what was the original gap set to @ install?

 

[SiThlord]

About 6k total miles, set to .028 @ install.

 

[UnSToppable]

Im very confused. I read the first few pages im not reading all of them. Would be nice if 1st post was updated with all info. Anyway im stage 3 stock turbo no intention of changing, cpe everything with fswerks cobb ap and frpp exhaust. Do I NEED to upgrade my plugs, or its not necessary? If i should what plugs do I use and what do I gap them to?

P.s. 2013 st with a oct 2012 build i believe if i remember correctly. 13k currently

 

[Endeav]

Went ahead and gapped my NGK LTR7IX-11 spark plugs that I purchased earlier this week to 0.026". The metal gapping tool left some "etching" in the ground strap electrode from the metal-on-metal contact, is this something I should worry about?

Should I purchase new plugs and just go the route of gapping them by tapping them on a hard surface?