 How do I use, a dwell meter? |
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| Ctrout |
 Nov 19 2004, 09:14 PM
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#21
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Member  Group: Members Posts: 377 Joined: 20-May 04 From: Mountain Home, ID. Member No.: 2,091  |
49 isn't THAT bad is it? I thought spec was 47 +/- 3. Is that right? That would mean that 50 is still "in spec". Or is spec 44 +/- 3?
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| redshift |
Nov 19 2004, 09:15 PM
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#22
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
That's a dog goned good question... 45° here...
I am not sure what happens if it's short, but if it's long, it acts like Joe mentioned, missy. If I am thinking correctly, long dwell will build up black thingy where combustion used to happen.. (IMG:style_emoticons/default/wink.gif) M |
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| Ctrout |
Nov 19 2004, 09:47 PM
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#23
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Member Group: Members Posts: 377 Joined: 20-May 04 From: Mountain Home, ID. Member No.: 2,091 |
So how greatly would a short dwell affect power? I understand that longer dwell means longer spark which in theory would mean more complete combustion. If I tune it to 45 will I lose efficiency? Or will any loss be made up in the correction of the misfire? I realize that ideally there should be no misfire But I'm wondering what is the "point of diminishing returns"?
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| redshift |
Nov 19 2004, 10:10 PM
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#24
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Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
The dwell angle is the charging period for the coil.... 45 degrees times 4 (cyls) open, plus 4 closed equals 360 degrees. Retrograded dwell is as bad as anything you could do with it.. no worse... no better.. just wrong.
It's the real electro-mechanical link between your spark, and your injection.. You need the strongest charge possible per firing for maximum efficiency, and performance. Fiddle with the timing all you want, until it sounds lopey, or weak... but set your dwell at spec. Timing off-spec does no good on a stock motor with injection, anyhow. Remember when you read this, I am not my own mechanic, so fly it up another flag pole before planting it on the moon. (IMG:style_emoticons/default/wink.gif) M |
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