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proffighter proffighter is offline
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Join Date: Aug 2007
Location: Switzerland
Posts: 2,179
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Yes, single port. I haven't seen any dual here in Switzerland. We have mostly ROW versions.

It seems logical to me, that it will retard on boost:

At Idle it is almost 0, high depressure over spring tension

Then with increasing rpm the spring gains against the falling depressure

As soon you're on boost, the spring ends to the max retard position (Not the centrifugal advance)
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Roland

930 Turbo '81 Too many modifications to list
Old 03-30-2010, 03:12 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #28 (permalink)