Single fire ignition
Road Warrior
Joined: Apr 2007
Posts: 1,354
Likes: 1
From: S.W. Florida
RE: Single fire ignition
92classic,
I've heard from some folks that the single fire can in some cases smooth the engine vibrations somewhat. I've also heard that the single fire provides a hotter spark to the plug and makes the plugs last longer.
Doing an engine build up on my 93 FXLR shortly. I have purchased a Dyna 2000 dual/single fire module and the single fire coil. I plan to initially test fire, break in the engine and select the correct advance curve on dual fire. After that is accomplished we'll switch over to the single fire system. All that need to be done to do that are the installation of two additional wires (included with the kit)and the coil.
If you are not in a rush, get up with me in about a month. I'llbe able to tell you if any difference can be felt between the Dyna dual/single system and the current Screamin Eagle system.
I've heard from some folks that the single fire can in some cases smooth the engine vibrations somewhat. I've also heard that the single fire provides a hotter spark to the plug and makes the plugs last longer.
Doing an engine build up on my 93 FXLR shortly. I have purchased a Dyna 2000 dual/single fire module and the single fire coil. I plan to initially test fire, break in the engine and select the correct advance curve on dual fire. After that is accomplished we'll switch over to the single fire system. All that need to be done to do that are the installation of two additional wires (included with the kit)and the coil.
If you are not in a rush, get up with me in about a month. I'llbe able to tell you if any difference can be felt between the Dyna dual/single system and the current Screamin Eagle system.
Road Master
Joined: Jun 2007
Posts: 842
Likes: 47
From: New Hartford CT
RE: Single fire ignition
When I was discussing replacing my ignition with my indy mechanic, I asked this same question. His take was that a single-fire ignition would only give a noticeable performance boost on a highly-tuned, big-inch hot rod motor. For my mildly boosted dresser, a high quality dual-fire ignition with a high-output dual fire coil would do just fine. After the (dual fire) Spyke ignition was installed last summer along with the new Spyke high output coil, I noticed a significant improvement, so I'm assuming he was right.
Road Master
Joined: Jan 2006
Posts: 1,192
Likes: 4
From: Columbus, OH
RE: Single fire ignition
I've heard the same as Rivercityslim, it aint worth it unless you got some kind of super built engine like a drag motor. You would be better off spending the dough on a quaility duel fire ignition. I have the SE with a stock coil and it works great with my whimmpy stage II engine.
Tourer
Joined: Sep 2007
Posts: 272
Likes: 1
From: Salem, Oregon
RE: Single fire ignition
I had one in my 85 wide glide. I replaced my points with the Crane HI-4 single fire kit. Ran better than with points and the idle was really smooth and sounded great. I didn't really notice much else until the unit failed, dam near left me walkin/pushin... Crane sent me a new setup but I'm back to points again. My .02 cents.
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Road Captain
Joined: Oct 2007
Posts: 715
Likes: 2
From: NW Florida
RE: Single fire ignition
If your 85 WG has points the previous owner installed them. They came with an electronic ignition system. My 85 is set up that way.
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Tourer
Joined: Sep 2007
Posts: 272
Likes: 1
From: Salem, Oregon
RE: Single fire ignition
ORIGINAL: outlaw0013
If your 85 WG has points the previous owner installed them. They came with an electronic ignition system. My 85 is set up that way.
If your 85 WG has points the previous owner installed them. They came with an electronic ignition system. My 85 is set up that way.
