R33 Spark Plugs

[Bw33zy]

Hey, so im about to replace my ignition coils in my 33 Gtst, so just wondering what spark plugs people are using and at what gap? heard many people regap to 0.8? are iridiums the go or just a standard plug. Car has minor mods atm, but soon to upgrade turbo and ecu.

Cheers

[pup_07]

i just changed mine today, they already had the iridiums in it so i just replaced them with new ones,gap cant remember but when i bought them i just put them straight in, i got a turbo and exhaust and it went just fine, so should be alright on stock

[mad082]

If you are getting new coils then run the stock gap of 1.1mm.

As for plugs, you can either pay a heap for iridiums, or get coppers which are much cheaper. The part number for the coppers is bcpr6eres-11

[sadr33]

I used bcpr6es and car ran much better. I wouldn't get 1.1mm even with new coils.

[mad082]

given that 1.1mm is factory spec gap, new coils should run it just fine unless you are running higher boost with other mods

[sadr33]

thr trouble is even if you get new coils the wiring loom abd other components aren't necessarily. on top of this most people do run higher than stock 5 psi boost by a long shot.

if you run too high a gap consequences are engine damage, too low just less fuel economy. some run 0.6. but imo 0.8 is good midleground for most.