Originally posted by 1stGenCRXer
The only timing that really has to be set is the base timing when the ECU control is bypassed [so that the computer knows where the timing is SUPPOSED to be, which it will still adjust], and the valve timing.
Exactly, so advancing the base timing will in effect advance all the timing maps.
I.E. Test 1
Set your base timing @ 0* TDC
Under acceleration lets say that the computers timing map advances timing 12* at 3000 RPM @ 40% throttle position for a total of (0* base + 12* computer advance=) 12*.
Test 2
Now advance your base timing 3*.
Again, under acceleration the computers timing map advances timing 12* at 3000 RPM @ 40% throttle position for a total of (3* advanced from base + 12* computer advance=) 15*.