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Started by billy rubin, November 01, 2019, 09:49:47 PM
Quote from: Ecurb Noselrub on December 23, 2020, 10:30:28 PMSweet Cream and Cinnamon Vanilla ice cream from Freezing Point, Temple, Texas. Part of the desserts for Christmas dinner.
Quote from: Icarus on December 23, 2020, 02:43:03 AMThe good lord smiled on us when he let us invent CDI ignitions. You will find that kind of ignition system, on all of the fast bikes of today. What do you suppose makes sparks on the little 10 grand Ninja that your daughter runs? It ain't a magneto.
Quote from: Dark Lightning on December 23, 2020, 03:27:11 AMI'm willing to bet the EMF of that magneto is in the single digit HP absorption regime. Electronic ignition could yield a couple of top end MPH. It would be worth experimenting with, for sure.
Quote from: billy rubin on December 25, 2020, 01:50:17 AMQuote from: Icarus on December 23, 2020, 02:43:03 AMThe good lord smiled on us when he let us invent CDI ignitions. You will find that kind of ignition system, on all of the fast bikes of today. What do you suppose makes sparks on the little 10 grand Ninja that your daughter runs? It ain't a magneto.i confess that there are hall effect and even optical transistor ignitions around that not only have a spark advance curve, but don't absorb horsepower, never go bad, work reliably in all weather conditions, and need no maintenance. i've got em on a triumph, two BSAs, and a norton commando, and they work flawlessly.but they all require a wiring harness, a battery, and if you want the machine to work more than an hour or so, an alternator. i actually ran a new zealand elecronic system on my race bike at first, but took it off when i melted the harness against my chest while lying down on the frame. it's on a BSA nowTBH th emagneto is attractive not because it's practical, but because it's just so . . . mechanical. the electronic ignition systems are philosophical black boxes, they just sit there quietly and work perfectly without any fanfare. but the ARD whirrs and clicks and sparks and generates an experience of time travel whenever i get it set up. and so far the machine is faster than all it's similar compettors with transistor technology. and it's minimal. i'm a minimalist. the first thing i do when i get a piece of computer hardware is go through and delete everything that i don't need. all the games, all the apps, all the bells and whistles-- i strip it to as close to nothing as i can get and then add back only things i need. even as a teenager, i ditched the front derailleure on my bicycle because five speeds were better than ten. so th emagneto decision is as much about art as it is about technology. but i'm approaching the edge of the envelope, and if i want to go faster i'm going to have get rid of the spark scatter and the horsepower drag of spinning that rotor.Quote from: Dark Lightning on December 23, 2020, 03:27:11 AMI'm willing to bet the EMF of that magneto is in the single digit HP absorption regime. Electronic ignition could yield a couple of top end MPH. It would be worth experimenting with, for sure.i know you're right. even spinning th erotor by hand takes several ounces of torque. and its not lik esliding friction that doesn't increase once you overcome starting inertia. the total force required to turn the rotor stays the same with every revolution, and so the faster you want to turn it, th emore reistance events per unit time you have to add up/.i have one of these already, bu i've been resisting putting it in.maybe this coming summer
Quote from: Tank on December 27, 2020, 05:03:18 PMI bought some random stuff for my wife. When she opened one she said "Oh! This scarf matches my coat perfectly. Did you chose it so it matched?" I remained silent.