R33 Gtr Spark Plugs (mild Modifications)

[some_cs_student]

Hi,

I thought there was a sticky on spark plugs but I can't find it, I've searched and found a few threads.

Its also an interesting debate in regard to going Copper and replacing every 10K or going Platinum/Iridium.

Any advice?

Finally, which one should I be using?

A BCPR7s/BKR7s ?

R33 GTR, standard tubo's, 1 bar boost, not driven too often if that makes a difference

Thanks,

Gareth

EDIT: Also is Repco a good place to buy spark plugs?

I noticed that performancelub has fairly cheap Iridium/Platinum plugs

[Buraz]

Bcpr 6's, no need to go colder heat range if it street driven and mildly tuned.

[Buraz]

And I use coppers as recommended to me and regap them myself.

[joeyjoejoejuniorshabadoo]

300rwkw daily driven

i use bcpr7es @ 0.8

[some_cs_student]

300rwkw daily driven

i use bcpr7es @ 0.8

I'm only 250rwkw so I assume the bcpr6 might be a better choice. I'm unsure how to re-gap spark plugs so would prefer to buy the right size if possible

[R31Nismoid]

Ah bullshit you searched, i know you be telling furphies

Just have a read of the Forced Induction Guide Gareth, its a sticky in Forced Induction.

It has a link to "what spark plug" or something similar, plenty of info for ya there

You wont need to gap the plugs. 1.0 - 1.1 willl be fine

[joeyjoejoejuniorshabadoo]

i have been using 7's in my car all the way through, 150rwkw 185rwkw, 269rwkw, 285rwkw, 311rwkw and now 323rwkw

if you buy BCPR7ES or BCPR6ES they will both be fine..... and are already gapped @ 0,8

the BCPR7ES11 are gapped to 1.1

[frozenpod]

I would use 1 heat ranger cooler ie 7's on a stock engine with no mods and look at running 2 heat ranges cooler "8's" and smaller gap if you at pushing more boost ie about 1 bar.

Pending on condition of coils the larger gap may still work fine but due to age and condition every car is different.

http://www.skylinesaustralia.com/forums/Ng...eri-t68157.html

[some_cs_student]

Ah bullshit you searched, i know you be telling furphies

Just have a read of the Forced Induction Guide Gareth, its a sticky in Forced Induction.

It has a link to "what spark plug" or something similar, plenty of info for ya there

You wont need to gap the plugs. 1.0 - 1.1 willl be fine

I read the general maintenance section, a quick check of the tutorials, and a search which brought up lots of debates about copper vs iridium.

Didn't think of the forced induction sticky

Besides you overrate search, I was searching for "spark plug" or similar, I didn't know what terms would bring back something useful

I'll just use BCPR7ES (-8 gap) then...thanks for the help (or 6ES if I can't get them).

Thanks everyone!

[R31Nismoid]

lol never to worry

I always check FI first, then gen maint

Other way around i find works best

[RWD GTR DRIFTER]

i use NGK BKR7E in an RB26

does anyone else use these plugs

[Rekin]

i have been using 7's in my car all the way through, 150rwkw 185rwkw, 269rwkw, 285rwkw, 311rwkw and now 323rwkw

if you buy BCPR7ES or BCPR6ES they will both be fine..... and are already gapped @ 0,8

the BCPR7ES11 are gapped to 1.1

I think if there is no trailing dash and number (-8) then the sparkplugs are 1.1

ie. BCPR6E are 1.1 whereas BCPR6E-08 are 0.8

Ive been using BCPR6E's on my car, but ill be trying out 7's because ive noticed speckles on my sparkplugs which indicate that they are too hot.

BCPR6E are better than BCPR6ES. The 's' stands for standard tip whereas the other has a v-groove tip which they say is better.

Also, stick with coppers and change them every 10,000km.

[ssxRicho]

I think if there is no trailing dash and number (-8) then the sparkplugs are 1.1

ie. BCPR6E are 1.1 whereas BCPR6E-08 are 0.8

Ive been using BCPR6E's on my car, but ill be trying out 7's because ive noticed speckles on my sparkplugs which indicate that they are too hot.

BCPR6E are better than BCPR6ES. The 's' stands for standard tip whereas the other has a v-groove tip which they say is better.

Also, stick with coppers and change them every 10,000km.

im with hamish, ive got some BCPR7ES-11 rolling around the glove box of the daily. where as the BCPR7ES with nothing noted on the end are 0.8's.

by the by i run BCPR7ES and well under 250rwkw

[Rekin]

im with hamish, ive got some BCPR7ES-11 rolling around the glove box of the daily. where as the BCPR7ES with nothing noted on the end are 0.8's.

by the by i run BCPR7ES and well under 250rwkw

my mistake, no dash number means default 0.8

Although according to their site they say 0.9

http://www.ngk.com/results_cross.asp?pid=BCPR6E

Projected Tip, JIS Height, .035" (0.9mm) Gap

More information on V-groove sparkplugs (BCPR6E no 's' at the end)

V-Power spark plugs are a patented design by NGK to improve ignitability and reduce quenching. Ignitability is improved by the V-groove cut in the center electrode parallel to the ground electrode, this directs the spark to to the edge of the center electrode thus exposing it to more of the air/fuel mixture. Quenching is reduced in much the same manner, drawing the spark to the edge of the center and ground electrodes reduces the surface area available to quench the spark. See quenching for more info.

[Rekin]

i use NGK BKR7E in an RB26

does anyone else use these plugs

Looking on the website i posted above, the BKR7E feature the v-groove whereas the BCPR7ES does not. There doesnt seem to be a BCPR7E on their website so it looks like if you want the v-groove you need to get the BKR7E.

This assumption is all based off the ngk.com website though.

[some_cs_student]

Looking on the website i posted above, the BKR7E feature the v-groove whereas the BCPR7ES does not. There doesnt seem to be a BCPR7E on their website so it looks like if you want the v-groove you need to get the BKR7E.

This assumption is all based off the ngk.com website though.

He had some kind of racing plug in there:

http://www.ninjapower.co.uk/product_info.p...-ngk-r67018-x-1 an NGK: R6701-8

Anyway, I've put the BCPR7ES in now, it was a little challenging but its done now, thanks for the advice everyone.

[joeyjoejoejuniorshabadoo]

[bozodos]

I found that there was no perceptible difference between the heat range 6 and 7 apart from the 7's carbon fouling even faster lol. Might give these v-groove ones a go next time though

[llama_au]

Yeah colder plugs do that. They don't like being left to idle for long periods or moving the car very short distances regularly.

[ARTZ]

Just remember they wont last 40k like the platinums