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Re: News Flash: Honda admits SAAB was right all along! Posted by Justin VanAbrahams [Email]  (#32) [Profile/Gallery]
(more from Justin VanAbrahams) on Mon, 15 Feb 2016 20:34:56
In Reply to: Re: News Flash: Honda admits SAAB was right all along!, cheaptech  [Profile/Gallery]
, Mon, 15 Feb 2016 16:02:20
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I thought you were referring to direct ignition in general, which (like turbo *and* V6 and *still* V8) Honda resisted for a long time.
That said, and don't quote me on this, but I am 99% sure capacitive discharge has no useful place on a motor. In 1988 when Saab DI first débuted nobody knew what they were doing and electronics were primitive. The challenges Saab DI sought to overcome simply aren't challenges anymore, if they ever actually were. While admittedly blazing trails, Saab went left when everyone else in the world went right.... not unlike variable compression when direct ignition was the obvious answer. ;)
"Really powerful spark" is academic - more spark isn't better. Once you have enough energy to close gap the under real world cylinder pressures you're done, and there isn't a coil pack in production today that can't keep up with Saab DI. DI solved reliable spark at 18psi in the '80s, which was crazy high boost back then. In 2016, 18psi is totally average, and conventional coil packs handle the situation just fine. Going to the time and expense of putting capacitive discharge coils on a car today would do nothing except raise the cost of production- what's the point of that? I guess if you're Mercedes maybe you don't care, but everyone else does! ;)
posted by 69.62.25...
, Sat, 13 Feb 2016 13:38:02
, Wed, 17 Feb 2016 09:39:19, Wed, 17 Feb 2016 11:42:37, Wed, 17 Feb 2016 11:33:27, Mon, 15 Feb 2016 14:17:02, Wed, 17 Feb 2016 09:34:16, Wed, 17 Feb 2016 11:38:47, Mon, 15 Feb 2016 15:01:29, Mon, 15 Feb 2016 15:21:56, Mon, 15 Feb 2016 15:53:23, Mon, 15 Feb 2016 16:02:20, Mon, 15 Feb 2016 20:34:56 <-- Viewing This Message, Tue, 16 Feb 2016 06:57:14, Tue, 16 Feb 2016 12:19:34
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