Whats The Best Spark Plug For A R32 Gtr

[GDZR32]

hi i wanted to know if any1 knows whats the best spark plugs for a r32 GTR

i want to service mine and idk what spark plugs i should get

i got a t04z, 910cc injectors ,v500 etc can i use factory plugs or bosh or somethings ????

[Zorro]

NGK BCPR7EY (cheap, short life) or IRITOP7 (expensive, longer life). *If your running >25psi then look at getting 8 heat range instead of 7!

[GDZR32]

I am running 19psi wat grade should i get 6-7-8 na gap 0.8 ? Thanks

[GDZR32]

N is the oritpo7 ngk?

[GDZR32]

Sorry iritop7

[reeceo21]

Generally all tuners will chuck out iridum plugs and put copper plugs gapped at .8 proven to make the best power

[GDZR32]

Whats a good copper plug i ant good with plugs n wat coils i have heard the spiltfire coils r good ??

Thanks

[reeceo21]

Meh they say OEM is the best but obviously most expensive. Spitfires would be fine. they generally consider spitfires as an aftermarket upgrade. as for plugs your 4 dollar plugs will be fine just make sure you change them every second service

[Zorro]

ok to clarify things: Both NGK, The BCPR7EY is a "copper" plug, roughly about $4 ea, The IRITOP7 is a racing iridium suitable for extreme turbo use and are about >$30 ea! *general iridiums -IX are not really suitable for high boost, but the IRI- series is and was its sole purpose for development (They are the same as the Nismo & HKS racing plugs)!

FYI: RB25 use BKR7EY and IRIWAY7. *difference being that one uses the ISO standard & the other JIS, meaning about 1.5mm difference in body length, both compatible with each other in most applications.

These plugs are 0.8mm gap std! * (where as, a 1.1mm gap plug carries a suffix of -11, a 1.3mm is -13 etc etc.)

At 19psi using '7' would be spot on, especially for street, but if your doing serious racing or vmax challenges then id recommend '8'.

Coils, Splitfire are good, but personally I'm looking into Okada Projects as they seem to be awesome on paper & I would be able to open the gap up to 1.1mm or more by the sounds of it (better emissions, economy etc)!

Edited October 11, 2011 by Zorro

[GDZR32]

Thanks for the info guys helpd me alot