ferni Posted April 15, 2004 Share Posted April 15, 2004 I had a quick search through the forums, couldn't find a direct answer... What model (copper) spark plugs should i use for my GTR? Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/ Share on other sites More sharing options...
Emre Posted April 15, 2004 Share Posted April 15, 2004 BCPR7 or BKR7. They are about $3-4 each from Repco, Bursons, etc. If there is -11 at the end (as in BCPR7E-11) they are pre-gapped at 1.1mm. Gap them down to 0.8mm if you have the ususal mods. EDIT : They came out with PFR6s from factory. Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-783570 Share on other sites More sharing options...
ferni Posted April 15, 2004 Author Share Posted April 15, 2004 thank you also do you happen to know the nissan part number for the oil filter (its the same one from the RB30's isn't it?) Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-783605 Share on other sites More sharing options...
EnricoPalazzo Posted April 15, 2004 Share Posted April 15, 2004 z145a ryco filter Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-783649 Share on other sites More sharing options...
Emre Posted April 15, 2004 Share Posted April 15, 2004 re oil filter, yes it is, just go to your Nissan dealer and ask for NI-15208-H8911. It's less than $10. Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-783700 Share on other sites More sharing options...
N/A® Posted April 15, 2004 Share Posted April 15, 2004 Plugs are so cheap. How are they better than the $17 ones and how long will they last? I presume less km than the Plat Plugs.. Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-783702 Share on other sites More sharing options...
meshmesh Posted April 15, 2004 Share Posted April 15, 2004 ferni, Why are you opting for coppers?? you'll be changing them every 10K~ and they provide an inferior spark to iridiums [spelling]... Go to the ngk website they have a selector there. I recently changed mine, just can't remember the code, maybe give the boys at ICE a call, they cost me around $20each. Personally I wouldn't be putting coppers in a GTR, or even a skyline for that matter. Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-783765 Share on other sites More sharing options...
ferni Posted April 15, 2004 Author Share Posted April 15, 2004 meshmesh - thanks for the input but i think thats a personal preference... i do plan to change them every 10000ks... since running so rich, i'm guessing they will get fouled/dirty very quickly - no matter what type of plug they are... so i'd prefer to change them at a frequent interval. I don't see how you can get a better spark out of plats or irids - copper is the best conductor and if the spark ignites the fuel/air then how can plat spark plugs be better? the gapping is what would matter? Looking through the forum there seems to be different opinions... and i can see why people would choose to pay more for irids / plats, since generally a higher priced product is higher quality/better - and i guess they are but only for length of life as far as i am concerned. I did a bit of research and it seems they created the longer lasting spark plugs primarily for cars that it is a pain int he ass to change the plugs - so high labour involved = you don't want to do it to often... in cars like ours where its a pretty easy job i can't see what the benifit would be I honestly don't mind spending money for better quality stuff, but i think i'd be better off in the long run if i changed them every 10000ks keeping them fresh/new Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-783784 Share on other sites More sharing options...
Duncan Posted April 15, 2004 Share Posted April 15, 2004 The main problem with the platinum and iridium plugs is that they never do last 100000k like they're meant to So you end up putting in the expensive stuff but having to change em after 20000km anyway. Stick to the coppers Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-783797 Share on other sites More sharing options...
ferni Posted April 15, 2004 Author Share Posted April 15, 2004 thanks duncan - exactly what i'm talking about, i think people put in the more expensive ones then dont bother checking them because htey are suppose to last 100000ks, but i think thats only on a normal car - ie not turbo/boosted/running rich car... Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-783809 Share on other sites More sharing options...
ferni Posted April 16, 2004 Author Share Posted April 16, 2004 BCPR7 or BKR7 whats the difference between these 2? Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-783930 Share on other sites More sharing options...
Amaru Posted April 16, 2004 Share Posted April 16, 2004 Just as a note, my last iridum plugs which were NGK Iriway 7's lasted 5000km's before one of them basically "shattered"... am now running NGK Platinums at 0.8mm gap yet they still misfire at high rpm, going to put a set of coppers in this weekend as they are meant to have a strong spark and see how they go. Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-783933 Share on other sites More sharing options...
ferni Posted April 16, 2004 Author Share Posted April 16, 2004 Amaru - sounds like what my mate (DentR33) said, he changed back to coppers and all is fine now Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-783936 Share on other sites More sharing options...
Zahos Posted April 16, 2004 Share Posted April 16, 2004 Coppers provide a better a spark, as copper is a much better conductor. check here: http://www.eddy-current.com/condmat.htm Iridium's last longer as it is a MUCH harder metal than copper, and are not as prone to thermal and chemical breakdown. Go to this website for more info: http://www.babcox.com/editorial/cm/cm120032.htm Bosch have a silver core or silver plated plugs. Silver is a very good conductor, much better than iridium (up to 4 times better), but I don't know much about these, as i have heared no reviews, and they have limited info on their website: http://www.boschautoparts.co.uk/pcPlug5.asp?c=2&d=1 So really you need to figure out what is best for you.... If it's a daily driver.... copper if you take it to the track often, and want long intervals between changes.... iridium if you take it to the track, and change often.... copper but again, these are my personal opinions, and everyone else has theirs..... Zahos Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-784028 Share on other sites More sharing options...
Guest RedLineGTR Posted April 16, 2004 Share Posted April 16, 2004 Thanks for the info Zahos Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-784046 Share on other sites More sharing options...
meshmesh Posted April 16, 2004 Share Posted April 16, 2004 this is becoming an interesting thread... Not the real techy type, but as advised I went with the iridums after some thread searching & tuners advice. So based on Zahos general view for street, coppers are the way to go??? :confused: I also thought iridiums run colder~ and that was also a benefit??? Amaru could your misfire issue be related to say bad tuning, coil packs, etc etc... and that's why your spark cacked it? I had a misfire issue and that's when we changed the plugs, but they it turned out the misfire was due to bad tuning by my previous tuner.. ICE fixed the problems and all's sweet now. Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-784060 Share on other sites More sharing options...
ferni Posted April 16, 2004 Author Share Posted April 16, 2004 meshmesh - i belive you can get colder rated copper plugs Zahos - thanks for that - they go along with what my opinions are too Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-784064 Share on other sites More sharing options...
Emre Posted April 16, 2004 Share Posted April 16, 2004 There is nothing wrong with using copper plugs in a GTR or any skyline. I used them for over 2 years changing them at around 5-10k kms and they looked to be in perfect condition when i took them out. There is a difference in physical size of BCPRs and BKRs. From memory the BKRs are smaller (shorter), i had all my old plugs in the shed but threw them all out a couple of weeks ago. They seemed to work the same, BKRs comes pre-gapped at 0.8mm and BCPRs don't. I think BKRs come with 'v' grooves as well which is meant to provide a better spark. Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-784410 Share on other sites More sharing options...
ferni Posted April 16, 2004 Author Share Posted April 16, 2004 cool, guess i'll try the BKR's thanks Emre - much appreciated Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-784552 Share on other sites More sharing options...
Zahos Posted April 16, 2004 Share Posted April 16, 2004 S on the end stands for standard copper plug Hence BCPR6E = V groove gapped at 0.8 BCPR6ES = non V groove gapped at 0.8 Although they fit, BKR would have the incorrect thread reach, whouch could result in a build-up of carbon deposits (see http://www.stealth316.com/2-sparkplugtech.htm ) - wait, this is for a GT-R, so I'm not entirely sure which is correct, but make sure you get the righ one. Easiest way, is ask for the recommended platinum plug for your GT-R, a BCPR and a BKR, and compare them. Zahos Link to comment https://www.sau.com.au/forums/topic/38660-copper-spark-plugs-for-gtr/#findComment-784864 Share on other sites More sharing options...
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