Spark plug recommendation pls

Negatory on the 66th element of the Periodic Table, Kind Sir...Please, let's remember...

This is what I refer to as the Old Dumb Bosch Technology Era. A time when fuel was pissed into the air stream based on a floating voltage measurement. I loved it with my E23 turbo cars, because I pantsed E55 AMG cars in 2002. Anything Motronic 1.3 and earlier was based on shitty gasoline from 1976 to 1989.

As a corollary, spark plug technology gravitated toward higher burn temperatures and no one at any of the Bosch fueled car companies issued updated spark plug requirements until 2016. Bosch ditched their copper straight core line and retooled the W7DC and W8DC plug lines to a resistor line.

ANY modern spark plug, such as a platinum or iridium line in a classic BMW is a waste of money and performance. Period.

liebe @Vern agreed on these omnius disquisitions, set together the unfathomable cloud of the periodic table and the menaces from ulterior shadows, let them come, we are prepared, let them Yell, we are ready, cos our Lord is here among us, he will protect us, he will share love among us and we will destroy our enemies (66th, 69th,...who else ?),...and so on and to forth
again iridium Works for me
i would love NOS Bosch machte im Deutschland, aber es gibt nicht mehr,...so what ?

;-)
 
i used to chase german made Bosch w8dc's on ebay (they can be had) but found going to local auto parts store to get ngk bp5es' a lot easier and they work great. i remember back in the 80's when i had my malaga coupe i tried the new bosch platinum plugs thinking they'd be great and the car would barely idle.
 
liebe @Vern agreed on these omnius disquisitions, set together the unfathomable cloud of the periodic table and the menaces from ulterior shadows, let them come, we are prepared, let them Yell, we are ready, cos our Lord is here among us, he will protect us, he will share love among us and we will destroy our enemies (66th, 69th,...who else ?),...and so on and to forth
again iridium Works for me
i would love NOS Bosch machte im Deutschland, aber es gibt nicht mehr,...so what ?

;-)

Ich mag wirlcih die Schlagsahne suf meinen Kuchen, aber Sahne ist billiger :P Glad the plugs work for you!
 
Ich mag wirlcih die Schlagsahne suf meinen Kuchen, aber Sahne ist billiger :p Glad the plugs work for you!

when is whipped cream what we are talking about, Oh baby, there ain't no mountain high enough, Ain't no valley low enough , Ain't no river wide enough , To keep me from getting it babe…
 
I don't use platinums in any of our older BMWS, the electrode mass is too small. The past 30 years I've stuck with Denso W16EXRU for our big-6 coupes and sedans, matter of fact I use them on all the street cars including M10, M20, M106...set it and forget it...YMMV
 
I don't use platinums in any of our older BMWS, the electrode mass is too small. The past 30 years I've stuck with Denso W16EXRU for our big-6 coupes and sedans, matter of fact I use them on all the street cars including M10, M20, M106...set it and forget it...YMMV

+1 NGK and no platinum. All of the E24 forums say to stay away from platinums. Steve Haygood, who was well known in the early BMW community and had a great shop before the economic crap hit the fan,and is/was very sharp on early BMWs said use the NGKs and open them up to .035. I haven't lit my motor up yet to give anymore feedback then this,
 
From Everything I have researched NGK
BPR6ES or BP5Es . The number in the middle indicates the heat range . The lower the number the hotter is the plug . Folks on 2002tii forum have debated this several times. Older BMW engines(as well as other carborated Engine brands) egnited /fire up at much lower temperature and platinum plugs are designed for much hotter temp inside combustion chamber regardless of your car brand!
It seems to me Weber Carburators (upgrades) run the Engine a bit hotter hence BP5ES might be better. But stay aways from NON-German made Busch as they also have had their share of problems with NON-German Bosch. NGK Japanese made is prevelant among 2002 owners. With Carburator engines take the plugs out every few thousand miles, specially if you don't drive your car much and inspect them for carbon build up or other issues you might have. Looking at plugs can tell you a lot about how well your engine is working specially on the older cars....
https://www.ngksparkplugs.com/about-ngk/tech-talk/spark-plug-basics
 
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I run BP6ES. FYI same plug in the Triumph and Volvo as stock stock. BP6S in the Lotus and Cortina.

FYI the E stands for extended tip. The R for resistor. This is intended to provide less interference to the car radio.

Rather listen to the engine than the radio. So no R required.
 
Stock number on the NGK BPR6ES box is 7131

I'm a bit confused. I typed NGK BPR6ES on Google and Auto Zone appeared at $2.99 per spark plug. I called and confirmed. When I went over to order, $13 + appeared and the counter person didn't know why.
So then, I asked him to type in number 7131,
This time the price was $2.99 just like on the web site. However, their computer did not have any cross reference nor did he have one in stock to check the box and spark plug markings.
So the counter person was not sure if the stock number 7131 was the same spark plug as NGK BPR6ES.
Question: is stock number on the box 7131 same as NGK BPR6ES?
 
I'm a bit confused. I typed NGK BPR6ES on Google and Auto Zone appeared at $2.99 per spark plug. I called and confirmed. When I went over to order, $13 + appeared and the counter person didn't know why.
So then, I asked him to type in number 7131,
This time the price was $2.99 just like on the web site. However, their computer did not have any cross reference nor did he have one in stock to check the box and spark plug markings.
So the counter person was not sure if the stock number 7131 was the same spark plug as NGK BPR6ES.
Question: is stock number on the box 7131 same as NGK BPR6ES?

when i bought these plugs, the box, if it is an original ngk, is always marked with the bpr6es

and what is more important the plug is always marked that way
tell the counter person to get the plug in his hands and check
 
Ok thanks.
Since my post, this is what might be the case with the price differences. Some of the NGK plugs are not made in Japan and it seems those are priced less and an not sure of the markings on the plugs. In my case, I just found NOS NGK BPR6ES in original box made in Japan for about $3 each delivered.
 
Ok thanks.
Since my post, this is what might be the case with the price differences. Some of the NGK plugs are not made in Japan and it seems those are priced less and an not sure of the markings on the plugs. In my case, I just found NOS NGK BPR6ES in original box made in Japan for about $3 each delivered.

it is fine, AFAIK, there are all those ngk made in japan, but i might be wrong
and BTW saying that those ngk plugs are NOS made me smile
are those venerable plugs so old ?
 
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