oc_civic

im putting new plugs in tomorrow and i run a small shot so i was looking to gap my plugs a little tighter.... this guy from NOS told me to run tighter gapped plugs.. that was like 7 months ago so im gonna do it tomorrow..

98 ex + small shot = what plug gap???

any insight would be good
thanks

Fujiwara Takumi

i thought it would be a FURTHER gap because ignition would be easier?

ManTiS

How has his ignition changed though? He's still running stock ignition.

I say run .040; i personally run .038 on my D16 turbo. I read somewhere that the general rule of thumb is: lower .004 for every 50hp

Fujiwara Takumi

ignition in terms of the fuel/air igniting easier... just a premise. just curious

oc_civic

i have NO idea why.. but the tech said to gap them tighter, as did an ex user of this board who is very knowledgeable.... this is the first plug change in about 9 months.. lol think i should have changed them sooner..

Jkan2001

i did .30 on mine...but you have NAWWWWS so be careful =o)

oc_civic

i think the idea is to make ignition slightly harder.. similar to retardign your ignition.. to resist detonation a little better.. once again just a thought

ManTiS

IDEALLY, you want a bigger gap. With a big gap, you need big voltage...big voltage means better ignition of the mixture. Big voltage cannot be provided with from a stock ignition. Therefore, us stock ignition-users must lower plug gap, when making big power, in order for the mixture to ignite properly.

Bakeoff

word! Smaller gap=stronger spark. It's not bigger (as in length) since you can't get the power you need from a stock ignition, but the current taht can flow with a tighter gap will be higher. Stronger, more intense spark. Stupid terms... A light bulb lights up your room. That's a large gap. An acetaline torch lights a small corner of a room, but so intensely, it can burn your retinas....