Jump to content
SAU Community

Recommended Posts

Hey guys,

I've recently just had to regap my current plugs in my rb25det to the .8mm mark to fix a misfiring problem I had because of air flow upgrades which has completely fixed the problem for now. However, I am thinking that I will be purchasing some NGK BKR5EIX-11 sparkies to fully replace these. Will I still need to regap these plugs down as well or not because of the better performance of them?

Cheers,

Dallas

Link to comment
https://www.sau.com.au/forums/topic/336930-sparky-regap-and-ngks/
Share on other sites

The gap should go down as the boost level comes up, to a point.

Mine runs best at .8 @ 14lb, use to breakdown a far bit at .11 @ 14lb high rpm.

+1 for copper plugs, just change them at every service, cheap/easy and you always have a good plug, dont believe the hype for the plugs that they say last for 100,000k, they are good for the first 5,000 then average from then on.

There is a good thread in here about plugs, all about heat range and gap size.

You want BCPR6ES - the BKR plugs are slightly shorter or longer by approx 2mm (cant remember exactly)

The BCPR6ES are gapped to 0.8mm they are copper, they are cheaper and they work just the same.

If you really want to you can deposit the money I just saved you into my account.

Read the spark plug thread - all of it.

/thread

You want BCPR6ES - the BKR plugs are slightly shorter or longer by approx 2mm (cant remember exactly)

The BCPR6ES are gapped to 0.8mm they are copper, they are cheaper and they work just the same.

/thread

^^this

these plugs are what most rb25det owners use

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Latest Posts

    • I was just driving into work and while on my drive, I went to accelerate and noticed the car would sputter/hesitate and I’d hear a few pops from the exhaust before it started going faster. Then I also noticed that when I push my clutch in, the car would die. This all started happening today. Any ideas?
    • That is a lovely Volvo, just saying. Yes I should have got an 260RS when they were cheap. I do regret now.
    • ^ lots of good points made above. The thing is, "aggressive" or "flush" fitment is relative depending on how much you have been influenced by social media. My starting point is always "look at the Nismo RWD specs". That is where you should start, then start measuring as GTSBoy as sort of mentioned, because every car will be slightly different. My 8.5"+35/9.5+38 will not be "flush" enough for you because you want more "pumped" look, which is why you measure. Tyre sizes and brand/models also make a difference. Some tyres are more chunky/square, some are more rounded. That means you could get away with more aggressive offsets without rubbing. But then it also depends on your ride height. Also depends on how much your car copped damage before being shipped from Japan. So it goes back to measuring your car yourself and determining what can work. Those Nismo specs are used bacause it's a safe spec for standard car (suspension. body) with chunky tyres. But then I put 265/35 wide tyres on R34 GT-R wheels, and currently run 285/30 tyres on 18x10 wheels.
    • Sounds pretty awesome. I recommend creating a new build thread and posting all your goodness in there.
×
×
  • Create New...