Date registered: Aug 2005
Vehicle: 1972 250C, Ducati ST
Location: Norfolk, Virginia
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RE: Aftermarket ignition boxes on vintage Benz?
Well, I've had the new ignition box and coil in the car for two days, so here's an update:
I thought the cold-starting was pretty good before, but it's even better now. Now, I pump the accelerator once and turn the key, and I usually don't even hear the starter motor turn - the car just starts up instantly.
Hot-starting still takes longer than cold-starting, but it's down to 1-2 seconds now, which I consider pretty normal. I'm still figuring out the best way to start the car when hot (pump the gas pedal first or not, where to position the gas pedal while I turn the key, etcetera).
I just filled up the tank, so it will be a few days before I find out if my fuel economy has improved. The gas mileage for my last three tankfuls with the stock coil were extremely consistent (14.20, 14.78, and 14.67 MPG), so if there's any improvement, it should be fairly easy to detect over the next few tanks. Heck, at today's gas prices, even if I only pick up one extra mile-per-gallon, the coil and box will pay for themselves in a year!