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Magnitoes

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  • Member since
    September, 2016
  • From: Port Alberni, BC Canada
Magnitoes
Posted by MyNest on Tuesday, February 21, 2017 4:47 PM

I want to create a bit more detail to the POPCORN WAGON. I have never built or even seen a wired magneto. Can somebody send me a good photo of a wired magnito,does not have to show the engine side

Keep the glues flying

 

  • Member since
    December, 2003
  • From: Nova Scotia
Posted by Bainford on Wednesday, February 22, 2017 12:54 PM

Hello, and welcome to the forum. This is a great place to get assistance for your model projects, and to show your stuff off. To get the most out of it, it helps to post in the proper section of the forum. You will probably get more info if your question is posted in the "Engine & Driveline" section. However, that bit of advice notwithstanding, try doing a google image search for "vertex magneto". The magneto is by far the easiest way to apply ignition wiring to your engine as the mag itself is easy to scratchbuild and the wires do not exit the mag in a specific firing order (visually speaking). Hope this helps, and enjoy the forum.

Power matters in the straights.
Lightness matters everywhere. - Colin Chapman

Trevor

  • Member since
    December, 2003
  • From: Nova Scotia
Posted by Bainford on Wednesday, February 22, 2017 1:00 PM

In other news, you might be interested in this... http://cs.scaleautomag.com/sca/modeling_subjects/f/30/t/97690.aspx?page=1

Power matters in the straights.
Lightness matters everywhere. - Colin Chapman

Trevor

  • Member since
    July, 2011
Posted by Racer H on Friday, February 24, 2017 12:05 AM
The Popcorn Wagon has one of the most unique ignition systems I have ever seen! The instructions do not identify it as a magneto nor a distributor. It is obviously a cam-driven device. It is not a conventional mag and should not be wired like one. I believe the ignition system is a Roto-Faze unit. Back in the day, the Roto-Faze brand was quite popular with the big block Ford crowd (the Popcorn Wagon sports a 427 mill). Plus, Roto-Faze did offer an ignition with a rare configuration of four terminals on each side to service each engine bank … the real and scale Popcorn Wagon has this configuration. My research photos do not show the presence of an ignition coil (required for a 1970’s points-style distributor) so the magneto assumption comes into play. To wire the ignition system (like the real Popcorn Wagon) … just mount the magneto/distributor/whatever to the camshaft cover per the instructions. On both sides, there is a raised rectangular panel with a nub in each corner. Each of those four nubs represents a terminal. The panel, illustrated in the instructions, services the four cylinders on the passenger side (i.e. the peanut roaster side). Drill a hole in each corner of the panel and run a wire to a cylinder. Four corners yield four separate wires to providing spark to each of the four cylinders per bank. Repeat the process for the other rectangular panel on the opposite side to service the driver’s side engine bank. When drilling spark plug holes in the cylinder heads, you may want to test fit the exhaust headers to avoid final assembly problems. Welcome to the Forum!

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