Stop in for a cup of coffee

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Its a pole barn. I use a 200k torpedo heater in it. I really have to insulate the ceiling. Been saying that for years now. Have to get a high reach in to do it and it is never cleared out enough to do it either. 48x48x14 tall to the bottom of the rafters. Was seriously cold yesterday here when it is in the 30's it is easy to get the thing heated to 60's.
 
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Only pic I have that kind of shows the space.
 
Either way I need to get a high reach in there. I want to put up that aluminized bubble type insulation in 4' widths. Just have to clear most of the shop out to do it and when it is clear :)rofl:)don't have the $$$ to do it right.
 
Hey Matt I just got asked a question about coils that I never thought about on FCBO. If you have a 12v points system why do you use a 12V coil instead of a 6V? with the voltage drop after the ballast resistor which would perform better? Never really thought about that one before.
 
halifaxhops said:
Hey Matt I just got asked a question about coils that I never thought about on FCBO. If you have a 12v points system why do you use a 12V coil instead of a 6V? with the voltage drop after the ballast resistor which would perform better? Never really thought about that one before.
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You're making me think too early! LOL
 
That was my first PM. Before coffee actually a head scratcher. I THINK the coil application compensates for it?
 
halifaxhops said:
Hey Matt I just got asked a question about coils that I never thought about on FCBO. If you have a 12v points system why do you use a 12V coil instead of a 6V? with the voltage drop after the ballast resistor which would perform better? Never really thought about that one before.
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Even with a ballast still too much primary voltage?
 
Here is the question.
Have a question that puzzles me. Specifically ignition coils for points ignition systems. When going through my 69 Fury last year I found many things incorrect the way it was setup. I replaced the distributor points and condenser , Cap [i got a few from you]ballast etc to freshen it up. Since it had been running poorly to cap it off might as well get a new ignition coil and keep the old one as a spare. Looking through the application chart for my specific engine ,car etc I saw if I looked carefully there were two different coils offered by different manufacturers.
Specifically a 12 volt and a 6 volt coil. I measured the voltage after the ballast resistor and if I remember correctly was between 7 and 8 volts. Scratching my head I did some research and did find that running a 12 volt coil on 6 or 7 volts would give 50% or more less energy to the plug. I went with the six volt coil and have been running it with no problems,,, So the question in a nutshell,,with a points ,ballast ,ignition system should you run a 6 volt or a 12 volt coil?
 
memike said:
Have a jem of a day Sublime. me, well it is off to my doctor that removed a cancer mole off my face two years ago, I believe I have another on my neck, but we will see, to many hours in the sun picking fruit as a young boy (9 to 15) I believe. I did not go to the military but I did help feed the world and help my mom raise and shelter my two younger brothers and grandmother, 4 grade was all I needed :popcorn:
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So here ya go, me all these years later still picking blue berries! Clearly didn't follow plan and marry rich woman.
John

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halifaxhops said:
Hey Matt I just got asked a question about coils that I never thought about on FCBO. If you have a 12v points system why do you use a 12V coil instead of a 6V? with the voltage drop after the ballast resistor which would perform better? Never really thought about that one before.
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I think the 12V coil was helpful for starting the car. Maybe also helps the coil develop higher output voltage? Is it harder for a spark to jump the gap when the engine is cold? I think so.
Once its running, the alternator has the system around 14 V and it doesn't need that much, maybe not even 12 Volts.
Here's my understanding of the coil voltage. Maybe you can say if its right or wrong.
The way I understand this is the ringing is left over energy. So there's nothing gained by having more than is needed to initiate and then maintain the spark. All it would do is make the coil hot.
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Sublime one said:
So here ya go, me all these years later still picking blue berries! Clearly didn't follow plan and marry rich woman.
John

View attachment 1715275599
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Almost the worst crop I had to pick , hot and no shade, you have a big place there, worst crop was Cucumbers and tomatoes, I carried all of the buckets for my mom and grandma, walk them to the trailer and get my card stamped , hot , then move down to Fla for strawberry season.. Nice looking blue berry bushes :thumbsup:
 
I am seriously jealous of the square footage and ceiling height you have available although having a second garage is lifetimes better than what I did have...
 
Makes sense. Might have to open some of my old electronics books for this one to re learn some of what I forgot! Dam good question though, and if so why are not racers using them? I know the different coils need a different voltage drop but past that need to look up the theory again.
 
71GSSDemon said:
I am seriously jealous of the square footage and ceiling height you have available although having a second garage is lifetimes better than what I did have...
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LOL need about 1/3 more storage space actually! Thinking about a shipping container but the wife does not want to look at it! But the rusted out parts cuda is OK????????????
 
halifaxhops said:
I THINK the coil application compensates for it?
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I think that's right.
the number of turns relates to the voltage induced in the secondary.
toolmanmike said:
Even with a ballast still too much primary voltage?
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Yes. Better a little too much than not enough.

At higher rpms, its more voltage is needed to get the initial jump across the gap.
The ballast resistor in theory cools a little so voltage to the coil is higher the faster the car is going.
 
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