Engine Timing (continued)
Figure 6, 30 degree vs. 32 degree timing
- Parameters: Run018
Stock air filter with approx. 15k miles on it
Timing at 32-33 degrees full advance at 6k RPM (an additional
timing mark I had added. Absolute accuracy to 1 degree is not possible
given the conditions the timing mark was being observed at).
Sunoco Ultra, 94 octane
Parameters: Run016
Stock air filter with approx. 15k miles on it
Timing at 30 degrees full advance at 6k RPM (my timing mark)
Sunoco Ultra, 94 octane
Conclusion: While some slight additional increase
in power appears on this graph, it is statistically within the error margins
I would consider reasonable for the measurement (less than 1HP). The overlap
of the lower RPM curves indicates no measurable gain at the RPMs I normally
operate the bike at, and the increased potential for pre-ignition with
the additional advance convinced me that MY ideal setting was 30 degrees
full advance. The setting was returned to 'my stock' setting (30 degrees
full advance at 6k RPM) at the conclusion of these runs.
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Timing - Page 1
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