Best spark plug for e30?

[AlexHale]

Any preference Bosch vs ngk vs denzo? Copper core vs 4 tip blood diamond plated blinders? Seriously, which is the best plug on a internally stick motor with MAF and 19lbs( if that matters, didn't know if it'd change heat range...idk). Thanks for any relies.

[dnguyen1963]

Really old topic! Do us a favor and use the search function.

[AlexHale]

Dude I know! I just didn't know if using a maf and bigger injectors will make a difference, will it?

[digger]

use NGK over bosch no fancy shit though, and on M20 with upper CR BPR6ES which is one range cooler.

[QUKBMER]

Your using a standard ngk spark plug part #BPR6ES or CR BPR6ES?

[AlexHale]

CR=compression ratio correct?

[digger]

CR=compression ratio correct?

the CR means compression ratio.

BPR6ES is the p/n for ngk but only for a higher compression engine the stock ngk is fine for stock engine

[AlexHale]

That's the answer I was looking for, thanks digger

[FLG]

Dont get anything fancy, over the years ive found on stock engines (not just e30's but in general) the OEM plug is really the best, period. On a built/forced induction motor, go with something better.

More so on an engine that burns out, before taking it apart my Charger was leaking oil past the valves ruining spark plugs, i found the cheap 1$ champion plugs not only lasted longer but she was happier, and when it came time to change i was only out a few bucks.

[mccor023]

Just my .02 running similar setup (maf/ 19 lb) I ran the new Bosch W8LcR+ and fouled them out in 6months flooded the head. Searched harder and found the old style W8LCR no plus and Ive been smooth ever since.
I'm might have the pt#'s wrong an OG can correct them as Im sure they know what Im talking about.

[AlexHale]

I too am running Bosch w8LCR+ and had one break, which caused a huge miss, and want to move one, btw are you running miller mccor?

[digger]

id probably consider champion plugs for the whipper snipper but not much else...... NGK always worked better than bosch for me

[mccor023]

Yes.

[digger]

Just my .02 running similar setup (maf/ 19 lb) I ran the new Bosch W8LcR+ and fouled them out in 6months flooded the head. Searched harder and found the old style W8LCR no plus and Ive been smooth ever since.
I'm might have the pt#'s wrong an OG can correct them as Im sure they know what Im talking about.

they changed the p/n for the B25 bosch plugs at one point W8LCR and then WR8LC or something along those lines.....was apparently still the same plug or newer version but 100% compatible they said

[nando]

use NGK over bosch no fancy shit though, and on M20 with upper CR BPR6ES which is one range cooler.

I use the BPR6ES too, as a side benefit to working well, they are cheap as dirt and i can go to any small redneck autoparts store in town and find them.

For a stock engine the equivalent would be BPR5ES