08-25-2023, 08:56 PM | #1 |
Junior Member
Join Date: Aug 2022
Posts: 1
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Spark Gap
I'm installing a 6.5:1 Head on my Burtz engine, and using Champion WY18 plugs. What is the recommended gap for my spark plugs
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08-25-2023, 10:00 PM | #2 |
Senior Member
Join Date: May 2010
Location: Oregon
Posts: 6,009
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Re: Spark Gap
Spark plug gap for modified engines require a bit of experimentation on your part. you can start with standard gap setting and then either make it smaller or wider to see how the engine response changes. I set my 3x plugs at .025 for the best running when I changed to a 6 to 1 Brumfield head.
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08-26-2023, 05:53 AM | #3 |
Senior Member
Join Date: Jul 2015
Location: SouthWest Michigan
Posts: 363
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Re: Spark Gap
Depends on what ignition you are running
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08-26-2023, 07:04 AM | #4 |
Senior Member
Join Date: Jan 2012
Location: Western North Carolina
Posts: 4,052
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Re: Spark Gap
I have a 6.5 Burtz head, stock distributor but high output coil, and 0.035 gap. A smaller gap at the rotor in the distributor helps.
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08-26-2023, 10:13 AM | #5 |
Senior Member
Join Date: May 2010
Location: Oregon
Posts: 6,009
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Re: Spark Gap
A big part of this hobby is the experimentation for me.
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08-26-2023, 07:47 PM | #6 |
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Join Date: Jan 2012
Location: Western North Carolina
Posts: 4,052
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Re: Spark Gap
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__________________
A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past. |
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