Chris...
Frank C. has said it all. Something seems
"offset" in there, though I don't know 1500's either but, 25-30 degrees
of advance at 1500rpm would definitely be
all, if not a good part, of your idle problem.
I do know that on a Series A equipped
with the Cooper S mechanical advance
dizzy, that dynamic setting calls for
22 at 1200rpm....so this would be a
very rough ballpark figure for
comparison purposes only.
The figure "10" you see on a mechanical
advance weight within the dizzy describes
the amount of distributor mechancal advance available...in this case 10
degrees which, when doubled for the
figure at the crank equals 20. Add in the
book static advance figure (whatever it
is) and there's your total mechanical
advance available.
You also want to check to see whether
setting advance dynamically is done
with the vacuum retard line connected,
or not. As I said, I do not know 1500's.
You know anyone who's got the SU
conversion done on their 1500?
Cap'n. Bob
'60 :{)
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