I'm not really sure what the problem is but last night I put in NgK Tr6 iridium plugs gapped at 40, 50 shot of nitrous, and now it sounds like my truck is missing according to one of my friends. I've heard the noise before though, before any of this was done. It sounds like something is choking, like not getting enough air. Could a lose belt on my supercharger not give it enough air thus causing it to make a choking sound or what could the problem be?

At WOT it's almost like a sputter... That's the best I can describe I suppose. If there is other questions on the problem let me know, as your advice would be greatly appreciated.

 

Well, you are running too hot a plug, at a way too wide a gap. Probably burned one up. Pull em out and check.

 

40 is a HUGE gap for a N20 L
6's are too hot
Spuddering is ALWAYS a tell tale sign of a bad plug
50 HP of n20 is nothing and should not have hurt anything

If it's not a plug
My guess would be "Spark Blow Out" especially at WOT due to the large Gap.
How does it run at low RPM and Throttle ???

 

It runs fine at low rpm, I only have a problem when I hit boost. I was told to use NgK TR6's and gap them at 40. At least that's what I Read on here to gap them at, 38-40. What kidn of plugs should I get and what should I gap them at?

 

Yep they always do with a burnt plug

You need either BR7's
or
Denso IT -22's

Gap can vary, dont know your other Mods ???
But for n20 some will go as small as .028 -.032
I go larger, Sal gapped my last set so I'm not positive what he used,
however my guess is .034 - 036, thats what I've been using lately.

 

mine did the same thing yours is doing when i burnt a plugx2 It was fine under normal driving but boost it would cut up. Ne set of t6 @.034 and they were good to go. I run about 15lbs with a 50 shot BTW

 

Well my other mods are.... a 2.8 upper pulley. It's not very modded yet but I decided to spray it for hoots. So just get another tr6 and gap them at 34 and I should be fine?

 

New set of plugs (IT22's or TR7IX) gapped at .032-.035 should do the trick.

Like Rob mentioned, it sounds like you are blowing out the spark, assuming none of the plugs are burned.

 

Alright, I'll look into new plugs. Thanks guys. Kinda sucks, I think I read a post by rob where he said he was running the tr6's gapped at .40 while spraying that's why I choose that. Next time I"ll research a little better. At least **** isn't broke.

 

some say tr7 some say tr6 and some say denso but i think the densos are to fragile for nitrous use. The tr6's have worked for me for over 2 years now so take that for what it is worth and my truck is drove hard as i go through about 2 bottles on fri and sat night.

 

You read it wrong, he claimed he gapped them as high as .100. I threw the B.S. flag and the post just kind of died. Which didn't surprise me as Rob is some kind of hero to the "pot-head" crowd around here. Challenging some of his, long winded...yet mis-informed, posts is usually not well taken. Gator is my hero as I prefer beer...... .

https://www.f150online.com/forums/sh...plasma+booster

Rocks

 

Thanks for the help. I'm going with NgK TR6 non-iridium just to see if I can get it running right and not have to worry about not hitting boost alot. I drove about 200 miles last night for some races with this problem, not wanting to do it ever again.

 

Love you too Rocks

BTW
I DID gap them at .038 - .040 and they worked awesome
BUT
The Multi Spark helped that work perfect

And BTW I NEVER said I gapped them at .100

I said the Plasma Booster allows you to run up to .100.
OK SO I MESSED UP THE DEC AND WROTE 1.00, kill me why dont you