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Ignition timing vs Boost vs Power
Posted:
Fri Oct 05, 2012 10:52 pmby Martin
Maybe someone will find this interesting.
Graph of base igntion map then -3deg, -6deg, -9deg, -12deg, -15deg, -18deg, -21deg
No boost control was done. Its just open loop DC with a boost reference. DC in all runs the same.
Re: Ignition timing vs Boost vs Power
Posted:
Sat Oct 06, 2012 9:43 amby stevieturbo
They are pretty hefty jumps in timing though.
And it's annoying the way this forum puts pictures into separate small windows.
Re: Ignition timing vs Boost vs Power
Posted:
Mon Oct 22, 2012 2:29 pmby fel1979
Nice Martin, Is really good to have this kind of comparison.
Re: Ignition timing vs Boost vs Power
Posted:
Sun Mar 17, 2013 5:55 pmby jasaircraft
Not sure what I see here, the lower manifold pressure line is making more power? and its the most retarded timing?
Re: Ignition timing vs Boost vs Power
Posted:
Sun Mar 17, 2013 10:07 pmby Holmz
Would having EGT with those other curves complete the story?
Re: Ignition timing vs Boost vs Power
Posted:
Mon Mar 18, 2013 4:10 amby Martin
What you are seeing....
Most timing, Most power, Least boost
Less timing = Less power = More boost (this is the case for each of the graphs, -3. -6, -9, etc....)
Yes, EGTs would have been good. Cylinder pressure with TDC reference brilliant.
Re: Ignition timing vs Boost vs Power
Posted:
Tue Mar 19, 2013 5:05 amby jasaircraft
Oh ok i see how egts would have been great to relate it to the boost, pressure/ tdc to power output aswell...
Re: Ignition timing vs Boost vs Power
Posted:
Sat Apr 13, 2013 1:28 amby pftuning
Martin wrote:What you are seeing....
Most timing, Most power, Least boost
Less timing = Less power = More boost (this is the case for each of the graphs, -3. -6, -9, etc....)
Yes, EGTs would have been good. Cylinder pressure with TDC reference brilliant.
Make sense to me. Nice illustration, Martin.