spark plugs?
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Joined: Dec 2013
Posts: 79
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From: New Hampshire
spark plugs?
Has anyone seen a difference between using the screaming eagle and standard OE spark plugs?
Is it worth the extra money?
Any performance improvement?
It looks like the SE plugs are iridium plugs which I always use in my cars / trucks.
Is it worth the extra money?
Any performance improvement?
It looks like the SE plugs are iridium plugs which I always use in my cars / trucks.
Seasoned HDF Member
Joined: Jan 2007
Posts: 20,616
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From: anacoco, la
i stick with the stock hd plugs for one reason. the ecm requires your spark plugs to be a certain ohm rating in order for the knock sensor to work properly. other plugs may fit, and they may or may not have the correct resistance. i know the stock hd plugs do. it isn't like you have to change them with every oil change anyway so to spend a couple extra bucks on the hd badge is no big deal.....
Seasoned HDF Member
Joined: Mar 2012
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From: new caney, tx
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From: New Hampshire
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Outstanding HDF Member
Joined: Sep 2010
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From: Mountain West, Big Sky Country
i use the v-rod plugs in my 12 CVO. They are a colder plug and it reduces the tendency of the 110 to ping under load. Replace every 20K.
in my 04 which is a 107, i run autolite plugs from the local auto parts store. they are about a $1.50 and i replace them every 10K.
The 04 tends to be more tolerant of non HD plugs than the 110.
in my 04 which is a 107, i run autolite plugs from the local auto parts store. they are about a $1.50 and i replace them every 10K.
The 04 tends to be more tolerant of non HD plugs than the 110.
Road Master
Joined: Apr 2012
Posts: 1,096
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From: San Jose
No, I do not believe there is an "knock sensor". I'm knot sure how the system senses knock?