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I was thinking about you the other day while driving.
you have twin plugs and 26 degrees advance and no vacuum pot.
THATS your problem.
you don't need that much advance with twin plug. that's your detonation plus your taking HP off the table.
the earlier the fuel is ignited the more it pushes down on the piston as it is still trying to rise.
advance should be set on a dyno. increasing timing until no gain in HP. anything beyond that is reducing HP.
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86 930 94kmiles [_ _] RUNNING: [__] NOT RUNNING: ____77 911S widebody: SOLD
88 BMW 325is 200K+ SOLD
03 BMW 330CI 220K:: [__] RUNNING: [__] NOT RUNNING:
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