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** how often do you guys change your spark plugs?

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Old 09-02-2002, 08:23 PM
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Default ** how often do you guys change your spark plugs?

how often do you guys change your spark plugs. i use NGK copper ZFR7F-11, anm ive heard about 10,000 miles then change. is that true? i have a 5th gen lude.
Old 09-02-2002, 09:18 PM
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Default Re: ** how often do you guys change your spark plugs? (ELUD THS)


Errr... brain fart - I'm not boosted, so I'd say change yours at least as often as you're changing them, if not sooner.

They're cheap as hell, and it definitely lets you keep on top of how your motor is running. No point in stretching something out that's so freakin' cheap and vital to your motor's function.


[Modified by Def, 10:25 PM 9/2/2002]
Old 09-02-2002, 09:46 PM
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Default Re: ** how often do you guys change your spark plugs? (Def)

true. but still like to know other peoples opinion. thanks though
Old 09-02-2002, 10:12 PM
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Default Re: ** how often do you guys change your spark plugs? (ELUD THS)

Just change them when you feel they have lost power. Otherwise you should be cool. I've done alot of R&D on spark plugs and found them to work best after a month of running them so brand new is not nessarily better.
Old 09-04-2002, 09:11 AM
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Default Re: ** how often do you guys change your spark plugs? (Rocket)

ttt
Old 09-04-2002, 10:01 AM
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Default Re: ** how often do you guys change your spark plugs? (Rocket)

Just change them when you feel they have lost power. Otherwise you should be cool. I've done alot of R&D on spark plugs and found them to work best after a month of running them so brand new is not nessarily better.
can you prove that?

i change mine every month.
Old 09-04-2002, 10:11 AM
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Default Re: ** how often do you guys change your spark plugs? (ELUD THS)

I change mine every other oil change and sometimes sooner.
Old 09-04-2002, 10:39 AM
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Default Re: ** how often do you guys change your spark plugs? (DIRep972)

hmmmmm maybe i should change mine? cant remember the last time
Old 09-04-2002, 12:35 PM
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Default Re: ** how often do you guys change your spark plugs? (dlplayboy)


can you prove that?

i change mine every month.
Thats been my experience. I might have some dyno proof in the near future.
Old 09-04-2002, 05:23 PM
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Default Re: ** how often do you guys change your spark plugs? (Rocket)

thanks maybe its time to change mine again/
Old 09-04-2002, 06:47 PM
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Default Re: ** how often do you guys change your spark plugs? (Rocket)

Just change them when you feel they have lost power. Otherwise you should be cool. I've done alot of R&D on spark plugs and found them to work best after a month of running them so brand new is not nessarily better.
I agree I have ZEX Turbo/Nitrous plugs and they have been in about a month now....must say that they feel a bit stronger now.
Old 09-04-2002, 08:36 PM
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Default Re: ** how often do you guys change your spark plugs? (Hellz99si)

i've heard some scary chit about those zex plugs dropping electrodes
and killing motors -- justa word of caution
Old 09-04-2002, 08:58 PM
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Default Re: ** how often do you guys change your spark plugs? (dante_420)

Ok heres a quick question, i know everyone one uses, the mgk bk7res11 or some thing like that, but i need some plugs supa fast for the dyno tomorrow, and i dont have time to get some ordered. is there anything else i can get? that is colder than stock for a 8to1 compression b16 running 14-20psi of boost? via hondata of course. thanks guys
Old 09-04-2002, 09:01 PM
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Default Re: ** how often do you guys change your spark plugs? (dante_420)

i've heard some scary chit about those zex plugs dropping electrodes
and killing motors -- justa word of caution
Ditto...
Old 09-04-2002, 10:15 PM
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Default Re: ** how often do you guys change your spark plugs? (Hellz99si)

I agree I have ZEX Turbo/Nitrous plugs and they have been in about a month now....must say that they feel a bit stronger now.
Thanks dude. More often than not it seems like the engine looses a little pep when I change the plugs.
Old 09-04-2002, 10:26 PM
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Default Re: ** how often do you guys change your spark plugs? (Rocket)

there has already been a dyno with new plugs and you do indeed loose some power. I wonder why that is?
Old 09-04-2002, 10:37 PM
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Default Re: ** how often do you guys change your spark plugs? (Arturbo)

There has to be a little crud that promotes flame kernal growth. New plugs don't have the crud.
Old 09-04-2002, 11:36 PM
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Default Re: ** how often do you guys change your spark plugs? (Arturbo)

there has already been a dyno with new plugs and you do indeed loose some power. I wonder why that is?
That's interesting, because I've seen dyno's that say otherwise (comparing old vs. new and "fancy"; POS 4 electrode Bosch among others)...maybe we should hold them in a flame before putting in new plugs
Old 09-05-2002, 02:22 AM
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Default Re: ** how often do you guys change your spark plugs? (Rocket)

There has to be a little crud that promotes flame kernal growth. New plugs don't have the crud.
however, there is also the unrecognized fact that the crud can also prevent the spark plug from supplying a strong spark.
Old 09-05-2002, 04:27 PM
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Default Re: ** how often do you guys change your spark plugs? (turboex)

Olympic Import Parts carries them in stock in. I never have to order them, in and out in 5 minutes.
Old 09-05-2002, 07:04 PM
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Default Re: ** how often do you guys change your spark plugs? (DIRep972)

me too, about every 10K
Old 09-05-2002, 10:00 PM
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Default Re: ** how often do you guys change your spark plugs? (integra-modder)

thanks for all the info.
Old 09-05-2002, 10:01 PM
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Default Re: ** how often do you guys change your spark plugs? (ELUD THS)

also how can you tell your spark plugs are about to go. i heard they misfire.
so if there about to go will you feel a lag in boost?
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