Is It Just Me Or Is There No Bcpr7es-11 ?

[victor71]

simple. save yourself money. get coppers. they last just as much as iridiums and better spark actually. trust me i know

[Wacky Dee]

hey Steve, on my 34 the car misses on idle when the gap is 0.8 with the copper plugs .. 1.0 gap and no worries.

Hamish, I actually WANT to use a 1.1 gap for better combustion/power/fuel eco .. One of the reasons I got the splitfires.

[joeyjoejoejuniorshabadoo]

most people gap to 0.8 with splitfires anyway....

TBH it might work @ 1.1 but with that plenum in the way i aint gonna bother to find out

heat range 7 seems to be the go too for 200+rwkw stenve... although 6 is quite popular and works on many a gtt/gtst

did it miss instantly? or could you have fouled them?

[Dose Pipe Sutututu]

Repco orders them in, my friend works at the Repco in Rockdale.

He ordered me a bunch.

[mad082]

tony (munkyboy) runs the 7's at 1.1mm (i think) and he hasn't had an issue, but he has only just gotten some yellow jacket coils or whatever they are called

[Wacky Dee]

I've had heat range 6 and 7 in my 190rwkw R34 .. 7's give a slightly better fuel eco I think but apart from that they're both about the same. Unigroup were encouraging me to stick with 7s at this power level and I think they know what they are talking about. I'd give the 6s a miss unless your skyline is completely stock.

Johnny which ones are you talking about, the BCPR7ES-11's ?

[Wacky Dee]

found the BCPR7ES-11's at local repco just down the road .. woops, shoulda checked there first $31 for 6, all goodah

[Dose Pipe Sutututu]

found the BCPR7ES-11's at local repco just down the road .. woops, shoulda checked there first $31 for 6, all goodah

Told you so

They're quite easy to get a hand on!

[stenve]

From memory it appeared to miss instantly (well about 30seconds or so after i started it), but i cant be sure. car isn't tuned yet so its possible i fouled them. (could be a loose loom connection, badly seated coilpack etc, bit of dirt or something as well)

I thought about gapping them back up to 1.0mm, but its odd that it didn't miss with the 7 heat range plugs at a 0.7mm gap :S i was under the impression the smaller the gap the worse the idle?

just called the local repco and ordered in the BCPR7ES-11's for me.

so tomorrow i'll throw them in at a 0.8mm gap i guess? what do you guys reckon? (running splitfires)

dont really feel like taking them in and out if it doesn't work haha. is it better to run them at 1.1mm gap if i can?

[_Ryan_]

R&E carries 7's

[Munkyb0y]

tony (munkyboy) runs the 7's at 1.1mm (i think) and he hasn't had an issue, but he has only just gotten some yellow jacket coils or whatever they are called

yeah 1.1mm with new coilpacks. but thats only at 13psi. i think i'll be going to 0.9mm for 16-18psi, and hope it holds up on the dyno.

[stenve]

looks like ive joined the 1.1mm club

just finished up and took it for a spin.

put it the bcpr7es-11's checked all the gaps, they were at 1.1mm then didn't touch them

took out the bcpr6es put in new plugs carefully hooked everything up and tada!

no more miss at idle, car seems to pull a lot easier, seemed a bit more powerful (probs just cause i was breaking traction on the wet roads all the time haha)

im running 12psi max. usually peaks about 11.5psi and no sign of a miss anywhere.

so there ya go if you are running splitfires at max 12psi, in "theory" you should be able to run 1.1mm gaps

how'd you go wacky dee?

[Wacky Dee]

just waiting for my splitfires to arrive and a date with unigroup ... I'm gonna do the same as you (same boost as well..11.5psi sometimes 12max depending on weather I guess) Good to hear you're not having any issues.

What did you use to check the gap on the new plugs? I checked with repco and they had those feelers but max .8mm or so (5 different kinds all maxed out at under 1mm)

[Munkyb0y]

lol. you add the different thicknesses together to make the amount you want. ie. 0.8 with a 0.3 or as close as you can. put them together, and check the gap.

[Wacky Dee]

o i c .. I thought that might be the case but seemed a bit dodgey Found some feeler gauges online though which do have everything up to 1.5mm

[stenve]

lol. you add the different thicknesses together to make the amount you want. ie. 0.8 with a 0.3 or as close as you can. put them together, and check the gap.

yeah, what he said.

Dont worry i looked at it for a minute and went "wtf?"

[FATGTS-R]

Has anyone had issues with 7's fouling for normal street use?

I run BKR6E at 1.1mm on street (95%) and 7's at .9mm when it gets the boot in - 250rwkw+. I have remote mounted coils so swapping out plugs is a 5 minute job.

Is the OEM plug the same height as the BCP or the BKR? Maybe the BCP are actually too tall and put stress on the coils?

[mad082]

if the bcp plugs are too tall i doubt it would put stress on the coils. if anything it would make it contact better and give better spark. all it is really doing is compressing the spring a bit more

[Nismo_God]

well im having the same issue as Stenve.....put in bcpr6es gapped to .8mm and now it misses.....at the start it would only miss when it warmed up...but now it misses from the time i start the car....

i have a little over 200kw s2 r33....have jjr coils....should i be running bigger or smaller gap??? and should I be using the 7???

thanks!!

[Wacky Dee]

6s will do the job ..but 7s are probably better for > 200rwkw and put the gap back up to .9 or 1mm and you should be ok. If that doesn't fix it, one or more of your jjr coils are dodgy.