Denso iridium

[Rbpowered]

i just picked up some and i was just woundering if they were the right ones there Ik20 5304 what kind of plug do you guys recomend i have a rb25 by the way

[JonPowell]

I recommend NGK V-Power copper plugs. RB motors really seem to like the coppers....you have to change them more often but they react real nice to coppers.

[Rbpowered]

Do you have the part number and where can you get these plugs at Thanks again

[Ramius83]

For my RB26, I purchased the NGK Copper Series Plugs.

BKR6E-11 is the part number.BKR7E-11 is one step colder from stock.

Gap them to 0.8mm, not how they come (which is 1.1mm).

[biglipzit]

My rb20 seems to love the irdiums now. It ran ok with the ngk copper but i kept getting misses and having to replace plugs on random cylinders. Never use platnium plugs. The rb's seem to hate the platinum. The bosche platinum cant really be gapped and would miss from the first day u put them in. I had some champion platinum plugs that i gapped to .8mm and one day on the track and it melted the center electrode on #1 cylinder plug and who knows whe3re in my engine the end dissappeared too. I say stay with the iridium. I have heard nothing but good things about them.

[rb240sx]

Yes I agree, I have tried Platnum, and Copper and the Iridium seems to work much better, I have HKS Iridiums, they dont cost as much as you think...but it made a difference. Heat rating 8.

[driftjunke]

About 1 out of every 3 RB's that come in have standard Autolites in them. I guess they like Autolites in Japan.

Eric

[Valley]

About 1 out of every 3 RB's that come in have standard Autolites in them. I guess they like Autolites in Japan.

Eric

copper autolights are cheap .

ngk iridiums.. only thing i put in turbo cars. coppers melting/boilling point is way to low for me to trust it on a F/I car.