Ordered NGKs last night!

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I have had ngk for about a week just no time install

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I did it in 15 minutes in a gas station parking lot between logging runs.

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do you need to gap the Denso plugs like you have to gap the NGKs? Am i completely wrong with this gaping stuff?


i know nothing about spark plugs.

 

You will need to confirm they are within the tolerance required for our cars. If they are not, obviously they will need adjusting.

 

And what tolerances are those?

 

"The first is the NGK LTR7IX-11. This plug comes with a gap of 1.1mm or .044" and will require you to regap them to a range of .030" - .032""

 

Hey guys, just a heads up that we've got some options available as far as spark plugs for the Focus ST. FRPP, NGK, and Brisk!

Focus ST Spark Plugs @ Lethal Performance.com

Let me know if you have any questions. Member discount codes apply, and you're eligible to earn Lethal Loyalty Points!

 

0.028 –0.031 in (.7 –.8 mm) per Focus ST Workshop Manual.... That's kinda in the middle of the two...

 

I purchased denso, are the gap setting the same across the brands?

 

Denso's are gapped to around .032.

Just so you guys know, we have the elusive ITV22's in stock. Just got a big shipment in today.

We, of course, have NGK's as well.

 

Just ordered the Deno's from Edge!

 

What do we look for in logs to determine if we need to shorten the gap?
My logs look good and car runs strong with new plugs.

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Well, there isn't really anything to look for in the logs that will stand out and say you need colder plugs. But you can see the ecu adding and pulling timing and from what people are seeing after adding colder plugs is that before the car might have been pulling timing and after it is adding a little bit.

We are tuning our car on the GTX2867 with stock plugs and once we get it set we are going to switch to colder plugs and see what the ecu does with timing and see how much more power we can make by increasing timing a bit. We'll definitely be sharing our results.

 

I was told .026- .030 for my bt setup

 

I'm using the NGK and gapped them to .028. I've had them in for about a week now. Nothing noticeable from the drivers seat. I'm at stage two and not well versed in this area to say if it's worth it or not.

 

Just checked the ST Helm Manual and it says 0.028" - 0.031". I guess that answers my question!

 

Thanks, now I have a project for this weekend..

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purchased my onestep colder plugs yesterday! Thanks Edge autosports

 

Here are two pulls with the colder plugs.... school me. This was with FSW tune. For *hit* and giggles all post another one with Cobb tune later.

see post 224

 

so far running stage one on the 22's and still runs great no misfiring or any kind of weird stuff going on. still need 3k miles til i can swap to the 24's.

 

Has anyone asked yet how going to 1 step colder plugs might be affected by this ridiculous cold weather we have been having?
Not sure if this would even make a difference b/c like it has been previously mentioned, the plug temperature is not really the same thing as combustion temperature.

 

In case anyone is wondering about this...I did some more research and found this one NGK's website:

As the air temperature or humidity decreases, the air density increases, requiring a richer air-fuel mixture. If the air-fuel mixture is not properly richened, and the mixture is too lean, higher cylinder pressures / temperatures, knocking, and the subsequent increase in the spark plug tip temperatures can result.
As the air temperature or humidity increases, the air density decreases, requiring a leaner air-fuel mixture. If the air-fuel mixture is too rich, decreased performance and/or carbon fouling can result.

Pretty interesting. But it actually has the opposite affect as I was expecting. So in reality using the colder plugs during winter would actually be even more benefit to the engine.

 

Also has anyone ever considered Pulstar plugs? I had these in my 09 Lancer without any sort of issue. They were great!
Not sure about what part # would be used, but just a thought.

 

Here's 3 pulls with Cobb stage 2 and colder plugs.

see post 224

 

Here's 3 pulls with Cobb stage 2 and colder plugs.

https://www.dropbox.com/s/jx37u3m7sn012lt/datalog7.csv

https://www.dropbox.com/s/szpw68h0ixzffdx/datalog8.csv

https://www.dropbox.com/s/ve1zh0ks6zcc2k9/datalog9.csv

Do you happen to have any before the colder plugs?

 

In the mean time...... Do we have any spark plug wisperers? I pulled the plugs this morning to take a peek and all of them are coated white?

Factory on the left colder on the right.

 

White would mean they became hotter if i'm not mistaken. Your plug looks a'aight. Stock and NGK

 

NGK Spark Plugs USA

 

Three pulls with factory plugs Cobb stage 2

see post 224

 

Check out the catalyst temp, 200* difference between the plugs. All these pulls were done on the same road, same ambient temp, and same tank of gas.

 

Where the logs on an Accessport V1.x map or the new V2.0 map? The V2.0 map notes included the following
Fixed a bug that caused the Catalyst Temperature to read inaccurately high

 

Not ready to lose my tunes from FSW. Probably won't upgrade until I get a crackpipe from Ollie.

Since all the tunes were done around the same time I'm willing to bet that even with v2.0 map the stock plugs are still going to record higher temps.

 

Got my NGKs gapped to 0.029 inches last night. Ready to go in this weekend.

 

How hard are they to gap? Just got mine ordered last night for edge autosport.