Performance Spark Plug Wires
Club Member
Joined: Apr 2016
Posts: 11,585
Likes: 8,411
From: Inland NW
I am not sure what bike you are asking about, but I have never heard about nor used any plug wires that actually netted a gain. (only speaking about late model EFI bikes)
Having said; I have now purchased SE performance wires on 2 Harley because I like the way they look
Those Dragon Fire Braided are pretty sweet looking. I wonder if anybody here had a dyno sheet to show us something significant...
Having said; I have now purchased SE performance wires on 2 Harley because I like the way they look
Those Dragon Fire Braided are pretty sweet looking. I wonder if anybody here had a dyno sheet to show us something significant...
Thread Starter
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Stellar HDF Member
Joined: Aug 2025
Posts: 2,365
Likes: 64
From: WV
I am not sure what bike you are asking about, but I have never heard about nor used any plug wires that actually netted a gain. (only speaking about late model EFI bikes)
Having said; I have now purchased SE performance wires on 2 Harley because I like the way they look
Those Dragon Fire Braided are pretty sweet looking. I wonder if anybody here had a dyno sheet to show us something significant...
Having said; I have now purchased SE performance wires on 2 Harley because I like the way they look
Those Dragon Fire Braided are pretty sweet looking. I wonder if anybody here had a dyno sheet to show us something significant...
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,071
Likes: 1,006
most all claims are market gimmicks. truth told, a co-tanger would.
if you want the best of both worlds, a spiral core is the middle of the road with metal and carbon tech. spark plug wires are mostly about controlling RF radiation. before that tech, there was the filter capacitor or condenser as some call it.
https://lainefamily.com/ModelAFiles/...istributor.jpg
if you want the best of both worlds, a spiral core is the middle of the road with metal and carbon tech. spark plug wires are mostly about controlling RF radiation. before that tech, there was the filter capacitor or condenser as some call it.
https://lainefamily.com/ModelAFiles/...istributor.jpg
The only gain you would get would be looks - would not make a power change. Be careful with aftermarket plugs and wires on TwinCams that have Ion Sense - they can sometimes create issues.
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Stellar HDF Member
Joined: Jan 2017
Posts: 2,678
Likes: 2,081
From: Massachusetts
Gotta be good for at least 15 hp!! Maybe some split fire spark plugs too! Barnum was right......
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Grand HDF Member
Joined: May 2014
Posts: 3,843
Likes: 1,174
From: florida
there is NO performance gain by non stock wires on MOST HD models,,,,,,coil is a different story, but not wires,,,,sometimes they cn even hurt you.
I dont care what DK customs says, they are full of ****.
As Ed said, this is even more of an issue on TC's with the ion sense system
I have tested this many many times, shovel evo tc and M8. Dyno tested by me, on my dyno. experience talking.
m
I dont care what DK customs says, they are full of ****.
As Ed said, this is even more of an issue on TC's with the ion sense system
I have tested this many many times, shovel evo tc and M8. Dyno tested by me, on my dyno. experience talking.
m
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,071
Likes: 1,006
bar of lava soap in a wool sock in the air cleaner is worth 20%
the average plug fires at 8k so having a 50k coil still fires at 8k. the only plus side in when resistance develops the plug can still fire with the reserve the 50k coil has, just masks issues till it catches you on the road.
if you have a system like the mallory capacitive discharge or the msd multi-strike, where the spark duration is extended, then a high capacity makes sense at a cost, shorter plug life.
the average plug fires at 8k so having a 50k coil still fires at 8k. the only plus side in when resistance develops the plug can still fire with the reserve the 50k coil has, just masks issues till it catches you on the road.
if you have a system like the mallory capacitive discharge or the msd multi-strike, where the spark duration is extended, then a high capacity makes sense at a cost, shorter plug life.