New NGK BR8HS plugs improve overall performance

WinnerCougar74

Petty Officer 1st Class
Joined
May 12, 2020
Messages
204
Here are 4 NGK BUHX plugs that I just took out of my motor today. Left ot right is 4-3-2-1. #3 was the cylinder that the smashed electrode spark plug came out of.
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WinnerCougar74

Petty Officer 1st Class
Joined
May 12, 2020
Messages
204
Here is thre different gapless plugs. Left to right
NGK BUHW (used)- NGK BUHX (new)- Champion L20V (new)
All have 1/2" long threads.
The BUHW has a wider gap and no booster gap
The BUHX has a smaller gap with booster gap
The L20V has a bevel edge at the gap with no booster gap
I just installed the Champions. I wonder if it will do a better job of not fouling because of the bevel edge. Some swear by Champions. I'll post the results.
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