Magnetic fired ignition, Anyone running it on a 4? |
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Magnetic fired ignition, Anyone running it on a 4? |
lapuwali |
Jan 21 2005, 10:56 AM
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#21
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
The MSD 6AL box has, by itself, NO provision for an advance curve. With it and their crank trigger, you get a fixed advance ignition. This is fine for a drag racer (which is what they advertise it for), but would completely suck on the street. It would be difficult to start, esp. when cold, and would run poorly at low revs. Driving it in stop-and-go traffic would be maddening. On a Type IV, you'd probably end up with a dead engine in short order. To get an ignition curve, they offer yet another box (actually several variations on it) that can give you anything from a fixed-at-the-factory curve to one you can program yourself. In the end, you're looking at about $500 to get an adjustable, crank-fired ignition with a distributor to, er, distribute the spark. No vacuum advance. With the "programmable timing computer", you won't have to adjust the sensor once it's in place and the air gap has been set (which is a one-time, engine-off deal). The programmer allows you to adjust the timing completely w/o touching the sensor. I thought all of this was way overpriced until I started looking at how much the competing setups were. I had no idea an Electromotive HPV was $900 these days. That's insane. No wonder MS is so popular. If you want a much cheaper ignition only setup that does require soldering and more work to make, look at MegaJolt Light Jr, which is a distributorless, completely programmable DIY box based on EDIS. Total cost will be under $300, and the end result is a superior system to the MSD thing. No distributor, vacuum advance, and you set the advance curve to anything you want in software. |
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