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spark plugs for nitrous

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Old Jul 15, 2009 | 03:00 PM
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Default spark plugs for nitrous

anyone have any recommendations on the ones they used?

i got cheap autolite 3923's in copper... j/w what someone else might recommend as being better
Old Jul 15, 2009 | 03:26 PM
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Maybe I need some NOS education, but can't you just run OEM plugs? Or no?
Old Jul 15, 2009 | 04:54 PM
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yeah i always thought that nitrous kits were basically plug and play?
Old Jul 15, 2009 | 06:15 PM
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no... not only are u supposed to go atleast 1 step colder plugs, you have to run premium fuel as well
Old Jul 15, 2009 | 07:11 PM
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you must run 2 step colder iridium tipped plugs and premium fuel unless you are trying to ____ up your engine.
Old Jul 15, 2009 | 11:19 PM
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first off this is the same guy that thinks a modded auto tc can beat a stick tc...HAHA um copper plugs = big mistake...read owners manual, says only iridium tipped, but yea you should run 1-2step colder but im running stock ones just fine with my kit
Old Jul 16, 2009 | 05:24 PM
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i am using stock plugs and premium fuel... my nitrous spray makes 50whp... nothing has blown up yet and nothing sounds wrong but sometimes i smell something nasty :\

colder plugs and premium fuel will make your car noticably slower when you are not spraying nitrous...
Old Jul 16, 2009 | 05:55 PM
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mike, what size shot are you using?

and ya, im running 2 step colder coppers with premium fuel right now and its awful... runs slow as hell... i am going to order ngk irridium 1 step colder plugs, which should fix that...

and does anyone have proof of an IHE auto losing to a stock manual? i mean, its just my opinion.. i could be wrong, as could you
Old Jul 16, 2009 | 06:02 PM
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So you downgraded from the stock plugs, not very smart. Copper is like the lowest quality spark plug you can get.
Old Jul 16, 2009 | 06:09 PM
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ya i was told by someone to go copper since the nitrous has the same effect on the plugs wether they are irridium or copper... but its the rest of the driving that suffers... so ya i gotta order NGK irridium 1 step colder
Old Jul 16, 2009 | 08:42 PM
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Originally Posted by mike6789k
i am using stock plugs and premium fuel... my nitrous spray makes 50whp... nothing has blown up yet and nothing sounds wrong but sometimes i smell something nasty :\

colder plugs and premium fuel will make your car noticably slower when you are not spraying nitrous...

that awful smell is burned nitrous lol smells like good ol burnt wiring to me
Old Jul 16, 2009 | 09:13 PM
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Originally Posted by krazyjvilled
mike, what size shot are you using?

and ya, im running 2 step colder coppers with premium fuel right now and its awful... runs slow as hell... i am going to order ngk irridium 1 step colder plugs, which should fix that...

and does anyone have proof of an IHE auto losing to a stock manual? i mean, its just my opinion.. i could be wrong, as could you
my jet is a .038 ... it gives me 50whp at 950psi bottle pressure
Old Jul 16, 2009 | 11:11 PM
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wtf what kit are u on im using NOS sniper kit and my 75 shot jets are .36 for nitrous and .24 fuel and i gaveme 290 tq and 265 whp
Old Jul 16, 2009 | 11:11 PM
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wtf what kit are u on im using NOS sniper kit and my 75 shot jets are .36 for nitrous and .24 fuel and i gaveme 290 tq and 265 whp
Old Jul 16, 2009 | 11:30 PM
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1 step colder iridium tipped NGK plugs. And yes, always use premium
Old Jul 17, 2009 | 02:28 PM
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Originally Posted by cburglb34
wtf what kit are u on im using NOS sniper kit and my 75 shot jets are .36 for nitrous and .24 fuel and i gaveme 290 tq and 265 whp
wow... what other mods do you have?? that would mean ur other mods are pushing you to around 190 or 195 whp...
Old Jul 17, 2009 | 03:12 PM
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ok......so far out of this thread i can tell yall dont know what your talkin about.....the reason why some of us FI guys use copper plugs is because it IS a better conductor of electricty and DOES give you a better spark...........needless to say i think there are one or two people on here running copper plugs as it is not recommended for our engines.
Old Jul 17, 2009 | 03:12 PM
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Originally Posted by krazyjvilled
Originally Posted by cburglb34
wtf what kit are u on im using NOS sniper kit and my 75 shot jets are .36 for nitrous and .24 fuel and i gaveme 290 tq and 265 whp
wow... what other mods do you have?? that would mean ur other mods are pushing you to around 190 or 195 whp...
Yeaaaa id def like to see a dyno sheet on this one...
Old Jul 17, 2009 | 03:17 PM
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Originally Posted by thendawg
Originally Posted by krazyjvilled
Originally Posted by cburglb34
wtf what kit are u on im using NOS sniper kit and my 75 shot jets are .36 for nitrous and .24 fuel and i gaveme 290 tq and 265 whp
wow... what other mods do you have?? that would mean ur other mods are pushing you to around 190 or 195 whp...
Yeaaaa id def like to see a dyno sheet on this one...

Preferably not from a Dynojet . I made a little more than that on a Dynojet w/ 75 shot & Ny-trex Triple Threat Kit, needless to say I was brought back to reality by the Mustang Dyno
Old Jul 17, 2009 | 03:19 PM
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NGK 1-step colder iridium....BKR7EIX-11

I thought we went over this though and the 1-step won't make your car much slower, its the 2 step that you are running on your setup, not enough power when you aren't spraying, that's causing you to bog down a bit, use 1-step and you should be fine.

If not, you have my number give me a call.



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