Denso Irridium IT22's too cold for 14lbs?

CobraBob

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Please get this confirmed, but I believe the IT22s should be good. I still have my IT20s and I'm very happy with them. It was recommended that I switch to IT22s (others said to stick with the IT20s) so I decided not to. As far as the gap, I know with the IT20s a gap of .034-035 is recommended with my mods. If yours are similar I'd say that's the gap to go with. I'm at 14 lbs. boost. With less boost you'd go with .038-040.
 

mnypit

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Originally posted by CobraBob
Please get this confirmed, but I believe the IT22s should be good. I still have my IT20s and I'm very happy with them. It was recommended that I switch to IT22s (others said to stick with the IT20s) so I decided not to. As far as the gap, I know with the IT20s a gap of .034-035 is recommended with my mods. If yours are similar I'd say that's the gap to go with. I'm at 14 lbs. boost. With less boost you'd go with .038-040.

I agree. I too run IT20's gapped at .034" and I see about 14psi with my Apten blower and 2.76" upper. No issues at all.

Steve
 

Cobra10thaniv

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Out of curiosity have you thought about the new NGK iridium that just came out. I hear they have a larger electrode which makes the chance of breaking a insulator less.
 

CountySoldier

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SO WHAT PLUG IS BEST FOR A 2.80 NPULLEY, CAI, PREDATOR AND BBK X-PIPE? I AM GOING TO INSTALL THESE THIS WEEK. PLEASE HELP ON A PLUG TYPE.
 

BigDaddy

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I know from experience that plugs can make some difference( not in Real HP terms) but in detonation terms etc.

But I've noticed quite a bit of spark plug talk on this board and have yet to hear anyone have a bad experience with a plug.

Its just my opinion, but I think some people get to caught up tinkering with their cars (granted: their choice/freedom.)

If you are running some added boost run a heat range cooler and be done with it. In many cases a spark is a spark! Going from .035gap to .036 isn't going to change squat. The Humidity and day to day changes in the air makes much more of a difference than these subtle plug adjustments.

Come-on guys whats next?....stickers adding Horsepower.....it's starting to smell like rice in here.

:)
 

wuplash

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i have been running the it22 plugs with no problems.i at first had a set gapped at .035 and my dyno sheet showed i had some spark blowout up top so i purchased a new set gapped at .030 have not redynoed it yet.i do show 14lbs boost and on a 35 degree day will show 14.25 lbs.
 

CobraBob

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Sounds like BigDaddy needs an tutorial in spark plug basics. :lol1:
 

cobrapete03'

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Originally posted by BigDaddy
I know from experience that plugs can make some difference( not in Real HP terms) but in detonation terms etc.


Agreed, who wants holes in their pistons.


But I've noticed quite a bit of spark plug talk on this board and have yet to hear anyone have a bad experience with a plug.


Just read a bit. Theres a lot of discussions here about spark plugs and problems some have experienced with them




Its just my opinion, but I think some people get to caught up tinkering with their cars (granted: their choice/freedom.)

Of course, it the american way. What better car to tinker on than the most powerful factory mustang ever to leave Detroit.


If you are running some added boost run a heat range cooler and be done with it. In many cases a spark is a spark! Going from .035gap to .036 isn't going to change squat. The Humidity and day to day changes in the air makes much more of a difference than these subtle plug adjustments.


As a general rule I wouldn't just go with ONE hear range cooler just because you can. There should be a little thought and effort in identifying which components will work the best with your setup. Sometimes its a little trial and error in finding the best combination.(i.e. Heat Range)



Come-on guys whats next?....stickers adding Horsepower.....it's starting to smell like rice in here.


The only stickers I put on end up on my workbench or toolbox where they belong, how about u.

-pete:coolman:
 
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CobraBob

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Pete, I do have ONE good sticker that added at least 10 rwhp -- my production number sticker I put in the engine compartment. LOL! I actually should have gone with a slightly smaller version which would have netted me another 2-3 hp. Seriously, though, thanks for your spark plug comments. They were good ones. I was just too lazy to try to say it myself, and you did it so much better than I could have.
:)
 
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B03Cobra

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I tried Deno's twice, both times they fouled, I think for the price they are junk, again this is just my experience. NGK's, or the ford stuff is the best way to go IMHO. I was actually amazed by how quickly the plugs would foul.
 

cobrapete03'

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Originally posted by B03Cobra
I tried Deno's twice, both times they fouled, I think for the price they are junk, again this is just my experience. NGK's, or the ford stuff is the best way to go IMHO. I was actually amazed by how quickly the plugs would foul.

How many # boost were u running?...What Denso plugs were u running with the combo? ITXX's? Thanks


-pete:coolman:
 

B03Cobra

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IT22's, with around 16lbs... SHRUG. Should be the right combo... Just didnt have the luck.
 

69gt4speed

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I have the motocraft 12's never a problem with blowout look nice and tan. got just what you are going to do. if it isn't broke don't fix it.
 

CobraBob

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I installed my Denso IT20s last April. I just pulled them two weeks ago to re-gap them and the color was fine. I would definitely use them again but obviously others prefer other brands which are equal in quality/performance in my opinion.
 

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