Jump to content
SAU Community

Hot Spark Plugs?

Rissole

By Rissole,
in General Maintenance

 Share

Recommended Posts

Rissole Contributor

Rissole

Posted
Posted

Theres lots of posts about spark plugs on here but ive got a question.. :D

R33 gtst usual mods standard turbo..

Re-moved "iridium nismo 8" spark plugs from car (god knows what these are? 0.8 gap?)

Put in NGK Iridium BKR5EIX-11, gapped to 0.8 (i know you're not supposed to gap iridiums).

I wanted to put in BKR6EIX, but id allready bought the BKR5EIX.

Running with the BKR5EIX 's the engine wasnt even coming onto boost it was just pinging and spluttering everywhere.. with low down torque not really there either..

I put the Old iridium nismo 8 plugs back in and all is now good and back to normal..

So im guessing the Iridium BKR5EIX (5 heat rating) is too hotter a plug?

I know i should have the 6 heat range, BKR6EIX, for the kind of mods i have, but would the 5 really do this kind of thing to the performance of my 33?

Any feedback would be great.

Looks like ive just wasted $100 on the damn wrong heat range sprakies.. :( , Dumbass.

Link to comment
https://www.sau.com.au/forums/topic/135310-hot-spark-plugs/
Share on other sites
Trex101 Collaborator

Trex101

Posted
Posted
Theres lots of posts about spark plugs on here but ive got a question.. :nuke:

R33 gtst usual mods standard turbo..

Re-moved "iridium nismo 8" spark plugs from car (god knows what these are? 0.8 gap?)

Put in NGK Iridium BKR5EIX-11, gapped to 0.8 (i know you're not supposed to gap iridiums).

I wanted to put in BKR6EIX, but id allready bought the BKR5EIX.

Running with the BKR5EIX 's the engine wasnt even coming onto boost it was just pinging and spluttering everywhere.. with low down torque not really there either..

I put the Old iridium nismo 8 plugs back in and all is now good and back to normal..

So im guessing the Iridium BKR5EIX (5 heat rating) is too hotter a plug?

I know i should have the 6 heat range, BKR6EIX, for the kind of mods i have, but would the 5 really do this kind of thing to the performance of my 33?

Any feedback would be great.

Looks like ive just wasted $100 on the damn wrong heat range sprakies.. :) , Dumbass.

Yah think you have got yourself some hot plugs, put it ip in ebay and sell at half the cost. At least you can recover something back.

Link to comment
https://www.sau.com.au/forums/topic/135310-hot-spark-plugs/#findComment-2517133
Share on other sites
mad082 Grand Master

mad082

Posted
Posted

you can't go past the plugs with the code BCPR6ES. they are only copper and are about $3 each (better than about $20 each for iridiums). i've had mine in for about 10,000kms at between 12 and 14psi and they haven't missed a beat. it had iridiums in there and they were dead after 20,000ks. i'm going to change them again at the next oil change (at $24 a set, why not)

but a guy i know put platinum plugs in (heat range 5) and it pings like a bitch, and pops and farts. he took me for a spin in it last night, but he wouldn't listen when i told him his plugs where wrong (1 of those know-it-all types).

Link to comment
https://www.sau.com.au/forums/topic/135310-hot-spark-plugs/#findComment-2522759
Share on other sites
Trex101 Collaborator

Trex101

Posted
Posted
you can't go past the plugs with the code BCPR6ES. they are only copper and are about $3 each (better than about $20 each for iridiums). i've had mine in for about 10,000kms at between 12 and 14psi and they haven't missed a beat. it had iridiums in there and they were dead after 20,000ks. i'm going to change them again at the next oil change (at $24 a set, why not)

but a guy i know put platinum plugs in (heat range 5) and it pings like a bitch, and pops and farts. he took me for a spin in it last night, but he wouldn't listen when i told him his plugs where wrong (1 of those know-it-all types).

Sometime cheap is not necessary bad and expensive is not necessary good. The key is to choose the correct form, fit and function that cater to your engine. The BCP6ES are without the V groove, choose the BKR6E-11 (gap down when necessary) which cost around there too.

Link to comment
https://www.sau.com.au/forums/topic/135310-hot-spark-plugs/#findComment-2522802
Share on other sites
BHDave Grand Master

BHDave

Posted
Posted

It all depends on the mods you have.

a mildly modded car shouldn't have major issues running a 5 as they are the stock replacement plug.

A 6 heat range plug is a good move with more boost up to about 1.1bar/16psi. bcpr6es/bkr6es is .8 copper out of the box, bcpr6e or bk.. is the v groove option.

A 7 over that up to low 20psi

I'd start with a 6 bcpr6es as they are cheap enough. If no good then make a few enquiries about the nismo plugs and try a copper 7.

Link to comment
https://www.sau.com.au/forums/topic/135310-hot-spark-plugs/#findComment-2522889
Share on other sites
Rissole Contributor

Rissole

Posted
  • Author
Posted

cheers fellas..

Yeh ill try the bcpr6es hopefully the 6 heat range is better. didnt realise a 5 heat range would be so S!@T

I might even keep the old nismo 8 iridiums in there and just clean them gently..

Ive got the old typical coilpack hairline cracks too, might fix them up as ill probably need too one day anyway..

thanks for the confirmation about the plugs.

Lata.

Link to comment
https://www.sau.com.au/forums/topic/135310-hot-spark-plugs/#findComment-2539658
Share on other sites
jb33 Enthusiast

jb33

Posted
Posted

hey i am more or less going through the same thing i have been using 7es in my 33 and have had no real problems went to enquire about iridiums and could get them for about $18.oo each and the same for platiniums but could not get them in 7,s ended back with old faithful bcp7es for grand total of $21.00 ,cheers

Link to comment
https://www.sau.com.au/forums/topic/135310-hot-spark-plugs/#findComment-2540931
Share on other sites
  • 2 weeks later...
Rissole Contributor

Rissole

Posted
  • Author
Posted
Don't know if this has been said but you can't compare all plugs by their number e.g. 5 or 6 as some plug manufacturers hotter and colder plugs ranges move in opposite directions.

yeh cheers, i know, i was just talking about ngk's.

ill be going the $21 option too.. ;)

Link to comment
https://www.sau.com.au/forums/topic/135310-hot-spark-plugs/#findComment-2570605
Share on other sites
NICKS33 Collaborator

NICKS33

Posted
Posted

mine was missing on boost...heat shrinked my coils and gapped my plugs at 0.8 that fixed it...then turned the boost up to around 12psi and it started missing again so i went for the bcpr7es gapped at 0.8 and everytihing is now sweet! id definatly recomend going for the 7...+ it costs like 24 bux!

Link to comment
https://www.sau.com.au/forums/topic/135310-hot-spark-plugs/#findComment-2570952
Share on other sites
Trex101 Collaborator

Trex101

Posted
Posted
i'm using the bcpr6es and i'm running 14psi with stock coils. they pop and fart on the very odd occasion, but they are about 7000km old. i'm going to go to the 7 heat range on the new plugs, just to get the heat down.

Remember to check your colder plug for fouling...

NGK FAQ

Link to comment
https://www.sau.com.au/forums/topic/135310-hot-spark-plugs/#findComment-2571819
Share on other sites
Psymon Mentor

Psymon

Posted
Posted

You can't go wrong with the BCPR6ES plugs. I had a set of splitfire plugs in mine which cost around the $20 a plug mark. They lasted all of 3 weeks before they started missing. Then the car sat for 2 weeks in the spray shop and i went to pick it up and it wouldn't start!

A trip down to Autobarn and 6 x BCPR6ES later and they haven't missed a beat. This was in October last year as well so they're probably due for a change! :P

Link to comment
https://www.sau.com.au/forums/topic/135310-hot-spark-plugs/#findComment-2574762
Share on other sites

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Duncan
      What brakes on R34 GTT(Europe)

      By Duncan · Posted

      Can I suggest you try EBC directly again and link them to as many competitor catalogues as you can to show their listing is incorrect, eg https://dba.com.au/product/front-4000-series-hd-brake-rotor-dba42304/ If you have access to an R33 GTST VIN and your VIN, you could also use a Nissan Parts lookup like Amayama to show them the part number is different between 33 GTST and 34 GTT which may get their attention
    • Kapr
      What brakes on R34 GTT(Europe)

      By Kapr · Posted

      So i got reply from EBC and they just this site where you can clearly see those 296mm fronts on R34 GTT. I send them photos and "quotes" that 296mm are not for 34 GTT and they are too small. But it will be very hard to return them cuz nobody here knows 100% and they just copy those EBC catalogue :-D https://ebcbrakesdirect.com/automotive/nissan/skyline-r34
    • 04-LOOX
      R34 GTR Vspec Garage Sale - All must go!

      By 04-LOOX · Posted

      Hi, is the HKS  Tower Bar still available ? negotiable ? 🤔
    • Duncan
      Duncan's V37.......race car?

      By Duncan · Posted

      From there, it is really just test and assemble. Plug the adapter cables from the unit into the back of the screen, then the other side to the car harness. Don't forget all the other plugs too! Run the cables behind the unit and screw it back into place (4 screws) and you should now have 3 cables to run from the top screen to the android unit. I ran them along the DS of the other AV units in the gap between their backets and the console, and used some corrugated tubing on the sharp edges of the bracket so the wires were safe. Plug the centre console and lower screen in temporarily and turn the car to ACC, the AV should fire up as normal. Hold the back button for 3 sec and Android should appear on the top screen. You need to set the input to Aux for audio (more on that later). I put the unit under the AC duct in the centre console, with the wifi antenna on top of the AC duct near the shifter, the bluetooth antenna on the AC duct under the centre console The GPS unit on top of the DS to AC duct; they all seem to work OK there are are out of the way. Neat cable routing is a pain. For the drive recorder I mounted it near the rear view mirror and run the cable in the headlining, across the a pillar and then down the inside of the a pillar seal to the DS lower dash. From there it goes across and to one USB input for the unit. The second USB input is attached to the ECUtec OBD dongle and the 3rd goes to the USB bulkhead connected I added in the centre console. This is how the centre console looks "tidied" up Note I didn't install the provided speaker, didn't use the 2.5mm IPod in line or the piggyback loom for the Ipod or change any DIP switches; they seem to only be required if you need to use the Ipod input rather than the AUX input. That's it, install done, I'll follow up with a separate post on how the unit works, but in summary it retains all factory functions and inputs (so I still use my phone to the car for calls), reverse still works like factory etc.
    • Duncan
      Duncan's V37.......race car?

      By Duncan · Posted

      Place the new daughterboard in the case and mount it using the 3 small black rivets provided, and reconnect the 3 factory ribbon cables to the new board Then, use the 3 piggyback cables from the daughterboard into the factory board on top (there are stand offs in the case to keep them apart. and remember to reconnect the antenna and rear cover fan wires. 1 screw to hold the motherboard in place. Before closing the case, make a hole in the sticker covering a hole in the case and run the cable for the android unit into the plug there. The video forgot this step, so did I, so will you probably. Then redo the 4 screws on back, 2 each top and bottom, 3 each side and put the 2 brackets back on.....all ready to go and not that tricky really.      
×
×
  • Create New...