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

[Wacky Dee]

Putting in splitfires soon and wanted to put NGK BCPR7ES-11's in (the ones that come in 1.1mm gap from factory) but apparently NGK dont make these ... they make BCPR6ES-11 and BKR7ES-11 but NO BCPR7ES-11 What gives?

The BKR type of plugs are 2.5mm shorter than the others so I'm not sure I want those in there .. any particular reason why NGK would have chosen not to make BCPR7ES-11 that anyone can think of ?

[Guilt-Toy]

Putting in splitfires soon and wanted to put NGK BCPR7ES-11's in (the ones that come in 1.1mm gap from factory) but apparently NGK dont make these ... they make BCPR6ES-11 and BKR7ES-11 but NO BCPR7ES-11 What gives?

The BKR type of plugs are 2.5mm shorter than the others so I'm not sure I want those in there .. any particular reason why NGK would have chosen not to make BCPR7ES-11 that anyone can think of ?

i remember these were the only ones available a few years back. it used to shit me because i allways had to gap them down. maybe they stopped making them because the .8's were selling more ?

why cant you gap them ?

[Wacky Dee]

I could but I'd prefer not to ..we're talking fractions of a milimeter and I'm not sure I trust any mechanic to gap all 6 of them accurately. I'd prefer them in that gap size from factory ...also less risk of the tip being damaged etc during regap.

Having said that ..even though NGK.com.au doesn't show BCPR7ES-11 in their parts list there appear to be plenty of shops that sell them (googled it) ..wtf?

[Guilt-Toy]

how do you know if someone in the shop or the packagers who pack them at warehouse did not drop the plug or the box the plug is in before you buy it?

you should check the gaps on them anyway.

[Wacky Dee]

whats the best way to measure the gap ? might just order 30 or so from ngk directly ..should last me 3 years atleast

[R31Nismoid]

with the tool designed for it

[Wheezy]

with the tool designed for it

QFT!

Pretty sure I have BCPR7ES-11 gapped down sitting in my RB20 right now

If you cant find them just use BCPR7ES if you were going to gap them down anyway whats the point in getting a 1.1mm gap unless you cant find the 0.8 which you can get your hands on from your post

[blind_elk]

I could but I'd prefer not to ..we're talking fractions of a milimeter and I'm not sure I trust any mechanic to gap all 6 of them accurately. I'd prefer them in that gap size from factory ...also less risk of the tip being damaged etc during regap.

Having said that ..even though NGK.com.au doesn't show BCPR7ES-11 in their parts list there appear to be plenty of shops that sell them (googled it) ..wtf?

If your mechanic can't gap a spark plug, find a new mechanic. It's not rocket science.

Even from NGK, you should still check the gaps as you install them.

Are you sure you need a 7 heat range?

[discopotato03]

I don't believe I'm reading this , if feeler gauges are good enough to set ancient contact points they're plenty good enough to gap a spark plug .

Feeler gauges are a glorified go/no go gauge and repeatable accuracy gapping spark plugs is childs play . We are talking to the thou or 0.0254 of a mm .

Simply open the gap up a tad with a small flat blade screwdriver , insert the appropriate feeler gauge finger and gently tap the outer electrode till it closes up on the feeler gauge leaving a neat fit - bingo 1.1mm or 0.0433" (tad over 43 thou) gap .

Plenty of people have opened up the gap on std plugs or closed up wide gap ones if they couldn't buy the manufacturers set gap .

A .

[simpletool]

I've got 7 of these downstairs. Got 6 about 2 months ago at Bursons here in Brisbane. Found another single one lying around from the AE86, must be 8 years old.

[mosquitocoils]

Howdy again mate, I changed my sparkies about 2 weeks ago. Used BKR6ES 11's I'm quite sure, gapped them down to 0.90mm using a proper spark plug feeler gauge - only like $9 from supercrap. Very easy, very accurate. Just do it Just put some paper towel or something on top of the hard surface you put the plug on to prevent scratching.

[Munkyb0y]

Whats wrong with the BKR7E? I use them. They're great. Did you say 2.5mm shorter? lol. Your new coilpacks will contact the top of the plug. 2mm difference wont matter.

[mad082]

yeah as tony said the 2.5mm difference in height isn't much of an issue. plenty of people have run BKR plugs in the past without issues

[Wacky Dee]

I just thought since they're shorter (the BKR's) they may not sit inside far enough and may not ignite the mixture as well.. probably not though

[Munkyb0y]

the difference in length applies to the top of the plug, not inside the cylinder

like so

Edited October 5, 2009 by Munkyb0y

[mad082]

yeah i wondered that myself a while back until i actually looked up what the 2.5mm difference was. as tony has shown, it is only in the top section of the plug. the threaded section and electrode aren't affected. if the springs in your coilpacks were shot (or missing, LOL) then you may have the slightest issue with the lead section of the coilpack not contacting the spark plug properly, but as i said, i don't think it makes any difference in normal circumstances

[Munkyb0y]

plus the R is underlined, so it makes your car go fasteR

Edited October 5, 2009 by Munkyb0y

[joeyjoejoejuniorshabadoo]

i am running these atm....

you will want to gap them to 0.8 anyway.... so dont worry about getting the 11's

[stenve]

hmmm, i just changed spark plugs on the 34 gtt

went from ngk PFR7G gapped at 0.7mm to BCPR6ES gapped at .8mm

after the swap i now have a missfire at idle.

i used to run the 6 heat range in my 33gtst with 190rwkw no problem (both cars running splitfires)

i assumed the 34 would be the same but apparently standard heat rang is 6 for them not 5 like the gtst.

So im guessing going back up to a 7 heat range would fix this?

What is the difference of the PFR7 plugs compared to the BKR7ES plugs?

[TALBO]

plus the R is underlined, so it makes your car go fasteR

Well fk me. Now I know why.... Thx dude