U20 Spark plugs

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Chucks66
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U20 Spark plugs

Post by Chucks66 »

I need to buy some new spark plugs and I'm not sure what kind I should buy if I changed out the old distributor to the EI dizzy
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Re: U20 Spark plugs

Post by nismou20 »

NGK BPR6ES .039-.043"
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Chucks66
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Re: U20 Spark plugs

Post by Chucks66 »

Thanks!!! from Las Vegas
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Gregs672000
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Re: U20 Spark plugs

Post by Gregs672000 »

Those are what I run. Some run the -11 version with the more extended nose but in my higher compression engine they seemed to cause more ping.
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Chucks66
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Re: U20 Spark plugs

Post by Chucks66 »

Thanks again for the help Keith Williams adjusted the carbs while i did the plugs. Maybe i will wash the car before Solvang
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Re: U20 Spark plugs

Post by msampsel »

Do not hurt your back Keith we need you!
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keith0alan
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Re: U20 Spark plugs

Post by keith0alan »

Not a problem. Carb parts are not very heavy. His plugs actually looked good. He was having an occasional stumble on a hard turn. We were checking the float levels and other carb things. One float was a little bit low. Since it only happened every once and a while it might take some time to figure out if it fixed the problem or not.
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dbrick
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Re: U20 Spark plugs

Post by dbrick »

Gregs672000 wrote:Those are what I run. Some run the -11 version with the more extended nose but in my higher compression engine they seemed to cause more ping.
Damn, never thought of that. I need to try some standard plugs now!

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Re: U20 Spark plugs

Post by PandaBoy »

Is there any difference between
NGK BPR6ES & NGK BR6ES spark plugs?
I have 8 new BR6ES in NOS but everything on the forum shows the BPR6ES as the preferred plug.
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Mainer311
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Re: U20 Spark plugs

Post by Mainer311 »

PandaBoy wrote:Is there any difference between
NGK BPR6ES & NGK BR6ES spark plugs?
I have 8 new BR6ES in NOS but everything on the forum shows the BPR6ES as the preferred plug.
The "P" stands for projected insulator and center electrode. Some people claim that the P-version gets the spark closer to the center of the cylinder, resulting in better ignition. You can use either. The NGK website actually specifies the BR6ES for the 1600 engine, and the BPR6ES for the U20. Either one will work.

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Gregs672000
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Re: U20 Spark plugs

Post by Gregs672000 »

I prefer the BR6ES as they are less likely to make my higher compression engine ping.
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Re: U20 Spark plugs

Post by AidanDawn2000 »

Gregs672000 wrote:I prefer the BR6ES as they are less likely to make my higher compression engine ping.
I should get some of those. looks like I've got something pretty different.
IMG_0249.JPG
Not sure what's different with the BP6EY but doesn't seem like the preferred choice.
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Oil a little low? Time to get a longer dipstick:)
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Mainer311
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Re: U20 Spark plugs

Post by Mainer311 »

AidanDawn2000 wrote:I should get some of those. looks like I've got something pretty different.
Not sure what's different with the BP6EY but doesn't seem like the preferred choice.
Y - v-grooved center electrode with extra projection.
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Re: U20 Spark plugs

Post by Linda »

NGK.com has good info on the plugs.
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Gregs672000
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Re: U20 Spark plugs

Post by Gregs672000 »

Yes, sorry for the misinformation. It is the P in the BPR6ES that is the problem for my engine... projecting the nose actually seems to change ignition timing slightly. It makes my engine ping.
Greg Burrows
'67 2000 #588
Tacoma, WA
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