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Anonymous
Guest
can u hook up a car's ignition coil with a distributor directly to the ignitor and the stock plugs?
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Anonymous
Guest
Don't think so.
In theory you could, but you would need four coils; one for every cylinder. Skip the distributor, there's no distributor on a GS.
I'd get some new bike coils if I were you. Cheaper and easier to install. :wink:
In theory you could, but you would need four coils; one for every cylinder. Skip the distributor, there's no distributor on a GS.
I'd get some new bike coils if I were you. Cheaper and easier to install. :wink:
Jojo is right.
Remember you have two cylinders firing at the same time on a 4-cylinder GS, and car-type coils cannot fire two plugs, only one, so you would need one coil for each cylinder, as he said.
The expense and effort of having to design a new system that would work with the GS basics, then finding/buying the parts would not be worth it.
Remember you have two cylinders firing at the same time on a 4-cylinder GS, and car-type coils cannot fire two plugs, only one, so you would need one coil for each cylinder, as he said.
The expense and effort of having to design a new system that would work with the GS basics, then finding/buying the parts would not be worth it.
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Anonymous
Guest
Correct me if I'm wrong, but don't they all fire at different times? 1 and 4 are at TDC together, but they should fire 360 degrees apart. You can have 2 sets of points fire 4 cylinders separately very easilly as when 1 is on detonation - 4 should be at TDC also and at the start of the intake cycle. Igniting it would have no effect.
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Anonymous
Guest
It's late - I guess I just said what you did - my apologies! 1 and 4 do fire at the same time.
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Anonymous
Guest
ok well i was just wondering
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Anonymous
Guest
Still easier and cheaper just to get the proper coils for it.
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Anonymous
Guest
my coils arent dead, i was just curious if it would work
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Anonymous
Guest
Give them a little funeral then order some Dyna Coils.
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Anonymous
Guest
So basicly... the engine is a pair of linked parallel twins?
I always thought that it would fire like a 4 banger car engine. 1342
Jim
I always thought that it would fire like a 4 banger car engine. 1342
Jim
S
saaz
Guest
No reason why it would not work if you can fit two coils and split the output of each into two (as per the standard bike coils). The question is whether it is work the effort.
B
Billy Ricks
Guest
1&4 and 2&3 get fire to the plugs at the same time. This actually helps burn off any residual fuel mixture before the fill stroke. They all have individual compression strokes and firing times, but they get fire at the same time every stroke.
F
focus frenzy
Guest
FOMOGO said:
It does, practically all automotive four cylinder engines use 180 degree cranks just like motorcycle four cylinder engines.
several car makers, during the mid 80's to the late 90's, used distributor-less ignition systems that on four cylinder engines used two dual output coils to fire all four cylinders, 1 and 4, 2 and 3.
general motors, distributor-less coils would work on our bikes, IF the resistance and power requirements are within the tolerance level of the igniter box.
that is the problem, the GM coils have a very high output, they would most likely overload the igniter and burn it out.
Gm and others have gone to individual coils for each cylinder, on the GM vortec v-8's the coils have igniters built into each coil, the ECM tells each coil when to fire and the coil triggers it's self.
that way the timing can be adjusted to each cylinder.
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Anonymous
Guest
Billy Ricks said:
Ok... that makes a LOT more sence. Fire at top of compression stroke AND fire at top of exhaust stroke.
Jim
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Anonymous
Guest
Actually, firing at TDC (or near it) on every stroke has no downside. Another reason for this - in addition to Billy's quote - is that only 2 coils are required - not four. This saves weight and production costs. This is what is defined as good engineering.
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Anonymous
Guest
Actually, firing at TDC (or near it) on every stroke has no downside. Another reason for this - in addition to Billy's quote - is that only 2 coils are required - not four. This saves weight and production costs. This is what is defined as good engineering.