Spark Plug ? BKR7E vs BKR7ES-11

[Rockogtr]

so i went to my auto parts store today and wanted to get a set of plugs, asked for the bkr7e plugs and he said the # is crossing in the system to a bkr7es-11 so i went on to NGK.com and the only diff is that the reg. e is cut with a v in the middle of the electrode.. dose any know if the v is that much better these are the specs from ngk...

BKR7E
http://ngk.com/productImages/1/NGK1273%2D1%2Ejpg

14mm Thread (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Thread%27,%271%27,%271%27%29), 19mm (3/4") Reach (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Reach%27,%271%27,%271%27%29), 5/8" (16mm) Hex (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Hex%27,%271%27,%271%27%29) Size, Gasket Seat (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Seat%27,%271%27,%271%27%29), Resistor (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Resistor%27,%271%27,%271%27%29), Solid Terminal (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Terminal%27,%271%27,%271%27%29), ISO (http://javascript%3Cb%3E%3C/b%3E:glos%28%27ISO%27,%271%27,%271%27%29) Length, Projected Tip, V-Power (http://javascript%3Cb%3E%3C/b%3E:glos%28%27V%2DPower%27,%271%27,%271%27%29) (V-Grooved Center Electrode (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Center%20electrode%27,%271%27,%271% 27%29))

NGK's unique V-Power (http://javascript%3Cb%3E%3C/b%3E:glos%28%27V%2DPower%27,%271%27,%271%27%29) design directs the spark to the edge of the electrode where it develops more rapidly, this increases ignitability even in lean burn conditions. In addition the NGK V-Power (http://javascript%3Cb%3E%3C/b%3E:glos%28%27V%2DPower%27,%271%27,%271%27%29) plug has all the features of their traditional plugs including corrugated ribs, pure alumina silicate ceramic insulator for greater strength and better heat transfer, copper core (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Copper%20core%27,%271%27,%271%27%29 ) and triple interior seal.







BKR7ES-11
http://ngk.com/productImages/1/NGK1273%2D1%2Ejpg

14mm Thread (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Thread%27,%271%27,%271%27%29), 19mm (3/4") Reach (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Reach%27,%271%27,%271%27%29), 5/8" (16mm) Hex (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Hex%27,%271%27,%271%27%29) Size, Gasket Seat (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Seat%27,%271%27,%271%27%29), Resistor (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Resistor%27,%271%27,%271%27%29), Solid Terminal (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Terminal%27,%271%27,%271%27%29), ISO (http://javascript%3Cb%3E%3C/b%3E:glos%28%27ISO%27,%271%27,%271%27%29) Length, Projected Tip, .044" (1.1mm) Gap

NGK traditional plugs are constructed for longer life and optimum performance. Corrugated ribs prevent flashover (http://javascript%3Cb%3E%3C/b%3E:glos%28%27Flashover%27,%271%27,%271%27%29). NGK uses only the purest alumina silicate in its ceramic insulator which give all NGK plugs greater strength and better heat transfer. Copper cored and triple sealed to further aid in heat removal and prevent interior leakage.

[DarkPhoenix]

They are bother pretty much the same thing except for the V Power. You aren't going to notice a difference really. Consider it a slightly updated plug.

[mestizo]

The 11 means it has a 1.1mm or .044" gap, that is the main difference in those plugs. If you're putting this on SR20DET then the gap is too big, stock gap is .032", also from what I have read and engine builder's I have talked to all say that you should run an iridium or platinum plug on a coil pack setup.

[Size]

^ ahhh the dreaded spark plug thread


problem with iridium or platnum plugs is that for Sr's the fuel ratio is way to rich on start up which over a short period of time tends to foul these plugs easily, thats why NGK V groove copper core works well, cheap to replace, and not so sensitve tip ( different material)
this can be said for OBD OBDII

anything with the new canbus ecu or finely tuned engine, like 350z, audi TT, etc,... newer cars 2002 & up, can run platnum, iridium without fouling plugs easily since these ecu's can tune the a/f ratios to the utmost detail.

as for SR, sure they'll work but you'll be replacing them too often, and empting your wallet for nothing

so NGK V groove copper core all the way, 6, 7, 8, 9 heat range, good,

higher boost= smaller gap= colder plug! 7-8-9 range is good for this

[fliprayzin240sx]

The 11 means it has a 1.1mm or .044" gap, that is the main difference in those plugs. If you're putting this on SR20DET then the gap is too big, stock gap is .032", also from what I have read and engine builder's I have talked to all say that you should run an iridium or platinum plug on a coil pack setup.

Its a regular sparkplug, not like you cant gap them yourself. I've run nothing but BCPR7ES or BCPR7ES-11 and gap them to .030. At $1.20 per plug, I can afford to change them every other oil change if i have to. Beats the hell out of paying $70 for iridiums...

[mestizo]

Its a regular sparkplug, not like you cant gap them yourself. I've run nothing but BCPR7ES or BCPR7ES-11 and gap them to .030. At $1.20 per plug, I can afford to change them every other oil change if i have to. Beats the hell out of paying $70 for iridiums...

My NGK iridium's were $32 at Kragen, you are not supossed to regap platinum or iridium plugs. All I was doing was telling the guy the main difference between those plugs, which is the gap and the v groove. But again why regap when you can get the correct or closer to correct gap?

[johngriff]

The NGK R series 7,8 and 9 iridiums are the best plugs hands down.

Same as the JDM iritop's. You can regap iridiums as long as you don't press against the diode when gapping (they are fragile).

A/F too rich... wha huh? Has nothing to do with type of plug.

NGK-R V powers are just fine for 99% of people btw.

How did you like the BCP series? Are they recomended by the dealers in japan? I have long suspected the BCP might be the correct plug for the SR becasue of This post I wrote.

http://www.rpsportengineering.com/nucleus/johngriff.php?itemid=19

[Z U L8R]

bcpr7es or bkr7e, gapped at .028 , and you'll have no problems no matter what u do.

when u have a gt35r or bigger on ur sr20, we'll consult u further

Dave

[johngriff]

bcpr7es or bkr7e, gapped at .028 , and you'll have no problems no matter what u do.

when u have a gt35r or bigger on ur sr20, we'll consult u further

Dave

The only problem is there is a difference between those two plugs, and I have been looking for a definitive answer in dealer recommended JDM SR20DET plugs. If you read the blog post I wrote you will understand why I ask.

[Dousan_PG]

i use bkr7e on my sr
350 whp
going to make 400+ in a few weeks.. not sure..should i get different plugs??

[johngriff]

Well what I am wondering about is if the BCP fit in the coil pack.

Flipynrazyn said they fit fine, so I would go with those because they have a higher tip tolerance than the BK. That could only mean a better connection with the coil pack.

The BK and BCP are the same plug with only the tip difference.

I think everyone uses the BK stateside because they are the recommended for the NA engine, but the NA engine uses push on wires, they will push on until they fit, where the coil packs bolt on and stay at one height.

The problem in the RB I was tuning was large enough that it had bad breakup under load, simply by changing the plugs it cleared everything right up.

aaron, go heat range 8 resistor V powers and keep take pre-gapped extras to the track.

[Dousan_PG]

what model is that?
bkr8e?
which is the v power model?
ive been 7es on sr since i first got one. i dont fuck aroudn w/ plugs much.

thanks!

[johngriff]

BKR8ES-11, then regap down to probably .028 for what turbo you are running.

In the NGK Series, the plugs get colder as the numbers increase.
BK= Series of plug
R = resistor
# = range of heat
e = (i don't know, someone chime in)
S or IX = either V power or Iridium (respectively)

I would say the V powers because they are cheap, almost disposable, and you can just one run set of plugs a weekend, and toss them @ $8 a set.

[adictd2b00st]

coppers all the way!

[racerx2k1]

Everything you want to know about sparkplugs is here:

http://sparkplugs.com/sparkplug411.asp

[johngriff]

Yeah, that is in the link that I posted to my blog.

And why copper?

You NEED resistor plugs if you are using individual coil pack/coil on plug to reduce RF noise between the plug and coil pack.

[adictd2b00st]

i've used ngk coppers on every turbo car i've owned (not to mention we used them on every car that came in for tuning at the shop i worked at), and they've never given me any issues. can't say the same about other plugs... so i stick with what has worked for me