Re: Holley HP EFI Coil Near Plug Spark Plug Gap
[Re: lockjaw-express]
#2479994
04/09/18 02:38 PM
04/09/18 02:38 PM
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Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
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master
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I would recommend .028 to .030. Inductive spark and CD spark have to be looked at differently. With inductive spark, the power that doesn’t get used during spark initiation gets discharged in duration.
"use it 'till it breaks, replace as needed"
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Re: Holley HP EFI Coil Near Plug Spark Plug Gap
[Re: TRENDZ]
#2480011
04/09/18 03:11 PM
04/09/18 03:11 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Master
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Romeo MI
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Rick.. quick question.. what was the name of the holley that I can ask a question thanks.. this is a new puter and I didnt transfer all that stuff thanks
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Re: Holley HP EFI Coil Near Plug Spark Plug Gap
[Re: lockjaw-express]
#2480013
04/09/18 03:13 PM
04/09/18 03:13 PM
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Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
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master
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Im not understanding your question. I think some words are missing😯
"use it 'till it breaks, replace as needed"
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Re: Holley HP EFI Coil Near Plug Spark Plug Gap
[Re: TRENDZ]
#2480019
04/09/18 03:21 PM
04/09/18 03:21 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Master
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Romeo MI
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The Holley site on line that has the one guy that answers most of the EFI questions.. you have been on that site many times.. if you have a problem he usually knows of it thanks
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Re: Holley HP EFI Coil Near Plug Spark Plug Gap
[Re: TRENDZ]
#2480028
04/09/18 03:25 PM
04/09/18 03:25 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Master
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Posts: 52,972
Romeo MI
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I dont know the guys name but I want to ask something on the HP unit thanks
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Re: Holley HP EFI Coil Near Plug Spark Plug Gap
[Re: lockjaw-express]
#2480031
04/09/18 03:27 PM
04/09/18 03:27 PM
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Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
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Danny is the guy that handles most of the questions there. Ijust posted there this morning regarding a post by andyf.
"use it 'till it breaks, replace as needed"
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Re: Holley HP EFI Coil Near Plug Spark Plug Gap
[Re: lockjaw-express]
#2480096
04/09/18 05:38 PM
04/09/18 05:38 PM
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Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
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The smart coils are inductive. Typical high hp engines using them set plug gap @.018- .022. Spark duration is the benefit.
"use it 'till it breaks, replace as needed"
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Re: Holley HP EFI Coil Near Plug Spark Plug Gap
[Re: TRENDZ]
#2480189
04/09/18 09:42 PM
04/09/18 09:42 PM
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Joined: Jan 2003
Posts: 31,022 Oregon
AndyF
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I would recommend .028 to .030. Inductive spark and CD spark have to be looked at differently. With inductive spark, the power that doesn’t get used during spark initiation gets discharged in duration. I haven't looked at this issue much but it seems like the factory uses some fairly wide plug gaps on the newer CNP engines. In the range of 0.040 or so on a few engines that I looked at. Maybe it all depends on the engine and the ignition system?
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Re: Holley HP EFI Coil Near Plug Spark Plug Gap
[Re: lockjaw-express]
#2480202
04/09/18 10:12 PM
04/09/18 10:12 PM
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Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
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No just the opposite. The CDI is the short duration, high energy start. The inductive sparkis the long duration trail. This is why MSD has multiple sparks below 3000 rpm. The short duration CDI spark would not burn up themixture fully at low rpms.
As far as plug gap, you can run it wide... but you end up with a much shorter spark duration doing so. The wider the gap, the more you stress the coil/ wires/ plugs. The Ign1 coils are capable of burning holes through some spark plug insulators. Much better to take it easy on the hard parts and turn the energy into duration.
"use it 'till it breaks, replace as needed"
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