Best Spark Plug for 1600cc

[71InvaderGT]

1600cc stock engine with the upgraded alternator. Best spark plug? I went with Champion and don't feel like a #%^^ing champion haha.

[joey1320]

That's one of those questions where there are infinite answers based on personal preferences.

I (emphasis on the I) have used Champions, Bosch and Auto Lite before with good results. Results may vary.
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1971 Super - Sold
1984 Puma GTC - Sold
1971 Campmobile

[Tim Donahoe]

I used Bosch for years in all my volkswagens. But once, the local VW vendor didn't have any. I went to Autozone and they didn't have them either, so I bought NGK brand.

What a difference! The threads just seem to fit better. With Bosch, there were times when removing and old plug was more difficult, not seized, exactly, but sort of. With NGK's, the plugs come out easily every time. And they are less prone to cross threading.

I use the B5HS.

Tim
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Richard O'Brien

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Yeah, a lot of what ifs, and personal preference. With Bosch discontinuing stuff, I've started using NGK stuff a while ago. A stock replacement to a Bosch W8AC would be a NGK B5HS (4210). A resistor version would be a BR5HS (3722). I like a plug with a protruded electrode a little better, so I prefer a BP5HS (4111). And the resistor version of that is BPR5HS (6222). The 4111's are usually in stock at Napa, or Advance Auto, or can be gotten by them the next day. I've had good luck with Autolites in Fords, but I don't even use Champion plugs in my lawn mower.

[heimlich]

Why does no one mention NGK BR6HIX? I run those in all of my Beetles.
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[mikewilkinson007]

I like the NGK's.
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72 Super - Marina Blue
1641 AH Dual Port
Dual Weber ICT 34's
Bosch 034

Long Gone: 70 Vert, 66, 68, 73SB, 70, 72, 61 Rag and a 64 with a cinder block in the spare tire well.

[bergfan]

[Abscate]

[volksworld]

opened my shop in 1975 and always used bosch....the difference in quality between them and the other stuff available at the time was significant...40 yrs later the quality has definately gone downhill....i ran ngk's in my race car cause bosch didnt have the heat range i wanted with no issues at all...and when i started buying new factory longblocks from mexico(back when they were still available) i was suprised to see they came with ngk plugs, not bosch....and saw various water cooled vw's with ngks as original plugs....so obviously they're good enough for the factory...the last set of bosch 7502's (w8ac) i bought were marked made in russia

[bluebus86]

Lettuce not forget the importance of the correct spark gap either.
and of course conditon of coil, wires, cap and rotor. coils do die, often they die a slow death, little shorts in the windings gradually reduce performance over time. if you have poor running, trying a brand new coil might be the answer, if it dont fix anything, put the old one back and keep the new one in the trunk as a spare. I also keep my used plugs if not totally bad, as spares, at least one set kept in the trunk.

good luck, spark on!
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[mark tucker]

I only use iridium or platinum plugs, last forever and a day and dont miss a lick. I also dont use hot or cold plugs.

[bergfan]

Just installed the protruded electrode BP5HS to see if they help with fouling , autostick has wrong carb which is another story

[andk5591]

Been using NGK B5HS or B6HS in customer and my cars for several years for stock head applications. Keep in mind that the lower the number for an NGK, the hotter the plug.
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[airschooled]

[joey1320]

[mukluk]

[VW_Jimbo]