If your assumption is correct (ie 11 degrees of centrifugal advance and 0 static advance) I dont see how it is possible to set the advance at 29° at 4k as recommended by Porsche: this would be achievable only if vacuum advance was 18° (or just a tad less if you have a bit of static advance) which seems quite a lot! What do you think?
Quote:
Originally Posted by Speedy Squirrel
For Euro cars, the initial timing set at 0 degrees and 1000 rpm. From the charts in the manual, at 1000 rpm the centrifugal advance is 0. I think that the vacuum advance is also 0 because the vacuum port is above the throttle plate at 1000 rpm. So the static timing is 0 for Euro cars.
At full throttle the charts indicate 11 degrees of centrifugal advance, and 0 vacuum advance, so 11 + 0 - 0 = 11 degrees advance at full throttle.
So, someone who is providing a warranty for an engine at ambients for -20 to 30 C and -100 to 2200 meters in altitude (Porsche) says that you should run no mor than about 15 degrees advance in a stock engine.
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