Ignition basics.
#1
Right near Malloy
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Ignition basics.
I'm not gonna muck up the "2GLIDFIS Transistor trick" thread with this, as it's way above my head.
I wanna know what I should know about ignition systems...
WTF is dwell? I thought that had something to do with points and was pretty much obsolete with the invention of electronic ignition systems.
What else should I know about ignition systems?
I know how they work and all... I just went to howstuffworks.com and pretty much already knew all that... What else do I need to know?
I wanna know what I should know about ignition systems...
WTF is dwell? I thought that had something to do with points and was pretty much obsolete with the invention of electronic ignition systems.
What else should I know about ignition systems?
I know how they work and all... I just went to howstuffworks.com and pretty much already knew all that... What else do I need to know?
#2
Old Fart Young at Heart
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Dwell is a degree angle that the points are either open or closed, don't remember which one. My best guess is the angle in degrees that the points are closed, thus a measurement of spark duration. If I'm wrong, I'm sure someone will chime in and correct me.
Point application, for a rotory, is pre '81.
Point application, for a rotory, is pre '81.
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Originally Posted by trochoid
Dwell is a degree angle that the points are either open or closed, don't remember which one. My best guess is the angle in degrees that the points are closed, thus a measurement of spark duration. If I'm wrong, I'm sure someone will chime in and correct me.
Point application, for a rotory, is pre '81.
Point application, for a rotory, is pre '81.
Also, Spark duration is instantanenous. This is the nature of inductive discharge... It's like the duration of a hand clap or camera flash. There is no such thing...
You can have rapid succession of flashes, but it's still just a succession, not a duration...
#4
Old Fart Young at Heart
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Originally Posted by Pele
But in the thread, they're using a 1981+ dizzy (With J109 ignitors) to control a 2nd gen ignitor/coil unit... How can this have a dwell angle?
Also, Spark duration is instantanenous. This is the nature of inductive discharge... It's like the duration of a hand clap or camera flash. There is no such thing...
You can have rapid succession of flashes, but it's still just a succession, not a duration...
Also, Spark duration is instantanenous. This is the nature of inductive discharge... It's like the duration of a hand clap or camera flash. There is no such thing...
You can have rapid succession of flashes, but it's still just a succession, not a duration...
You are correct about the spark being instantaneous, I improperly stated what dwell is in regards to spark. Dwell is a measurement, in degrees of a circle, that the points are closed, during which, spark occurs.
Like I said, somebody would correct me.
#5
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Spark occurs on opening of the points, right? So how does dwell affect it? So long as the points open at the right time, it should be all the same.
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