Rb26 Plugs & Heat Rateings

[GEE TEE ARE DIRTY 3]

Hi all,

I'm new to this forum, but have had my R33 GTR for around 8 years now.

Been down the same track as most of us have gone down. More boost, gasket fail and a rebuild with all the norm goodies, forge pistons new Tommie water pump and water pump, extended sump GTSS = 330KW ATW.

I was always one to change my own oil, change plugs and alike. Don't get me wrong I am no a grade mechanic but happy to keep cost down and a bit of hands on is always good.

Anyway, along the road I have come across a few tuners/workshops that would like to take on all the aspects of the car.

I got my car serviced and ready to take it way for the weekend and a good thump out of town. As soon as I put my foot into the car it started missing. I thought plugs, but it was not that long ago that I had them changed. I remembered that I had a set of plugs in the draw from when my car was running 260kw with stock turbos. I remember when I had the car original tuned seven years ago the tuner advised that a BCPR6ES was OK for my car on the street but I would need a BCPR7ES if I was to add more boost.

I found the plugs BCPR6ES so I started taking all the plugs out & they did not look to bad. At a closer inspection they were a part number that I did not recognize BKR6E. I put my plugs in and the car is running fine.

Sorry for elaborating for so long, my question is,

BCPR6ES is ok at low boost due to heat rating?

BCPR7ES high boost, track due to heat rating?

BKR6E is for a RB25 not a RB26?

Thanks

[Hadouken]

50 bucks says the plug gap is your issue and not the heat rating

[GEE TEE ARE DIRTY 3]

New plugs no issues same gap. The other plug is put in a swift, it's small is size too.

[GEE TEE ARE DIRTY 3]

BKR6E is smaller so I would say it would have heat issue quicker?

[Hadouken]

you measured the gap?

[GEE TEE ARE DIRTY 3]

yer mate, 7mm what are you running? plugs gap?

[Goochs13]

Im running bkr7e which is same plug just 1 range colder runs perfect gapped to .8

[Goochs13]

You will notice the bkr plug will have a v groove but the bcpr wont

[Hadouken]

bcpre also have a v groove. however if you buy the bcpres then you get the "standard" tip.