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Try not, Do or Do not
Join Date: Apr 2004
Location: Fallbrook, Ca. 92028
Posts: 14,023
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The advance is in the brain
The 964 distributor advance mechanism is designed to keep the rotor lined up with the cap electrodes. As the brain ( ecu) inputs advance the rotor changes position to keep the contacts in line . I believe that mechanism has about 12 degrees of movement. That translates to something like 24 degrees of engine advance.
Given a static advance of 5-7 degrees that would give the engine 29-31. I repeat this is not a proper curve. I believe the 964 ECU can put up to 44 degrees of advance in and with the program and knock sensor removes what it doesn't need.
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