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Ghostchips

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Everything posted by Ghostchips

  1. Does anyone here know how a 'coil on plug' can sense when a spark has occurred & use that sensor wire thing?
  2. Could someone tell me why this Runs way slower (as in, ignition retarded with the sensors and engine speed the same) and noticeably less smooth than.... This?
  3. If i have a command to run 'void taskname' in the loop, and the 'void taskname' points to another 'void taskname2' or something, will this run? I seem to be doing something wrong.
  4. Picture-less update. While i will still need to dial in the auto-advance curve (the orig' relied on a combination of moving a lever to a basic range, and the magnets on the flywheel ramping up the speed of the points opening) it has a notable improvement in fuel economy, partly due to being able to wind the fuel mixture screw in 1/16th of a turn & have the same performance. It's like having the magneto set perfectly. But requires a battery.
  5. Cheated with opticouple chips to isolate the aruduino from the unbelievably noisy stock system.
  6. Sure... i doubt they'll look though. I should have posted it to the other forum just to get their knickers in a twist. So easy.
  7. https://youtu.be/onQO9h5A83M Finally. Feels weird driving a car that used to have buzzing points. Now it only has this digital thing running the show. Torn between continuing the coil on plug thing or coding some decent ignition timing for it.
  8. Ardunio nano on a small board with some hall effect sensors. installed in the end of an old can, some melted plastic in the holes, light passes through the plastic so i know where to drill it to put the bolts through.
  9. If it's LED1 you're trying to connect to, that LDR idea i had might be easiest. Looks like connecting things to the LED makes that flasher circuit go nuts. I only know that because i built that flasher a a kid, the rest of the circuit is a bit above my pay grade.
  10. Opticouple. Contains an LED. It might not might one being conected. Or put a photo-resister over the LED. I've done things like that but the calibration is hard to maintain. Phototransistor might work better.
  11. Turns out i need to use the cylindrical style transformers, they need a longer ramp up time of at least 8 milliseconds, ideally 10-12. The little cube ones are nice but they seem to foul. Although the cube style produce a hot enough spark to burn paper & start to melt the spark plug electrodes, when fouled with fuel they can't even light a pan of fuel. The cylinder style build up a charge and discharge it all at once, this appears to help with the 'self cleaning' effect. A big plug gap will make them lag like crazy, but the spark is loud enough to hear from outside the engine block.
  12. I have successfully made something that gives me 4 times as many shocks as a single ignition coil. Those sad old squares ignore me too.
  13. Video of it almost running. Cannot seem to get the mixture quite right.
  14. So i tried making my own coil on plug system with a piece of plywood with magnets glued in it in the front of the cam, an arduino pro mini with sensors mounted on the front of that, a sheet of plastic (Made from melted milk bottles & bottle caps) with copper screwed to it to distribute power i know those aren't proper ferrite toroids but thaat's just too bad. Wrapped in a tin foil tape to try & keep interference out (probably keeps it in?) The cool kids have MS paint graphs & stuff so i'll try be be cool too. The red curve is a rough approximation of how the standard magneto behaves. The green one could be programmed any way i like. If i put a high(er) compression overhead head valve head on it, then i can program a curve to take advantage of it. It'll also make old grumpy people sad. Most people just use a distributor conversion.
  15. A guy i know fills them with soapy water for an hour or 2 & drains it. Soap binds the gas like it's an oil.
  16. If you were local you could have my 2stroke Tecumseh.
  17. This would be awesome if it didn't make so much interference.
  18. How is he using a laser capable of melting steel, on a reflective surface, and he's not even wearing glasses?
  19. Ok, i report back that it works fine if you turn off the motion sensor. Otherwise it takes bumps in the road or driving into the sun & doing a Uturn to get it to start recording again.
  20. Diff' oil is sparkly. https://youtu.be/Mle73Vxxipw So i put a camera in there. Nothing much to see.
  21. Build that tiny voltage supply & use the huge subwoofer cap on the output supply. It's what i've been going with something.
  22. Do you have tons of old cellphones or some supercap/ultracap's around? Could make a voltage stabilizer thing. I have a few shitty zener diodes but i don't like that method.
  23. From the way the tach' drops, providing the video is in sync' with the audio', there's an electrical supply problem, possibly a short circuit. Is it possible to wire an alligator clip from the battery straight to the coil & see if it's some kind of dead short like an immobilizer?
  24. So i heard you think recycled plastic is crap? I disagree. I am an enthusiast of it now.
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