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-   -   spark plugs for supercharged 328 (http://www.maxbimmer.com/forums/showthread.php?t=150885)

Murchie 05-15-2012 10:57 PM

spark plugs for supercharged 328
 
Hey guys,

I'm looking to change the spark plugs on my newly acquired 328. What plugs do you guys recommend for a supercharged 328is? Or is stock good enough? Also what gap and torque specs? Thanks

iverson03tj 05-16-2012 01:28 AM

i went with oem in my supercharger... no problem... i used ngk brand.. dont use bosch... i initially bought the bosch ones and the car started to act a little funny... rpm would drop sometimes... but it works amazingly with the ngk...

bmdbley'sBro 05-19-2012 01:08 PM

yeah people seem to swear by NGK for FI

Murchie you can always go with a Colder plug if you're getting pinging

Lang75 06-01-2012 11:25 AM

I know with the Nissan Z cars the NGK's are sworn by. The issue with platinums is that they are not designed to run with very high compression or boosted engines. I haven't heard anything on the iridium plugs on boosted engines, but would recommend staying with the standard designed ones.

iverson03tj 06-02-2012 12:20 AM

im not sure but the only reason manufacturers use iridium is because its lasts longer.. which makes there cars less maintenance.... i hear copper is good??? again its words i heard... not proven facts

Lang75 06-02-2012 08:57 AM

When I bought my 328, it had these bosch plugs which had four prongs open centre, the size of the anodes and cathodes were the same as convetional ones as these were not platinum. I replaced mine with iridium after doing some research, and the engine was more responsive, ran smoother, i found myself shifting 500 rpm later under normal driving. So I will recommend them for a NA car, but as mentioned I can't comment on boosted applications.

SiR 06-04-2012 10:30 AM

ngk bk6re


or bk7re if you want one step colder.

iverson03tj 06-07-2012 01:39 AM

http://store.bimmerworld.com/ngk-iri...ugs-p1267.aspx


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