ontstekingstijdstip afstellen met LH 2.4 en EZ116K...!

[Bozzma]

Op hoeveel voorontsteking komt een B23 / 230 normaal ? Ik kwam een leuke tabel tegen:

For timing, we don't have a generator written yet. The basic principles are to determine a maximum advance for your engine and work backwards from there with heuristics ('rules of thumb'):

older engines (1960s up to 1990 or so) with two valves - max advance = 36°
newer two-valve engines - max advance = 30°
three or four valve engines - max advance = 26°

then adjust for bore size:
under 3.5" (89mm) - subtract 3°
between 3.5" and 4.000" (101.6mm) - no adjustment
over 4.001" (+101.6mm) - add 3°

then adjust for the fuel:
regular - subtract 2°
mid-grade - subtract 1°
premium - no adjustment

That gives us a maximum advance figure. It you have an aftermarket combination with a good squish area and optimized quench, subtract another 2°. If you have a flathead, add 3° or 4° or more.



Ik draai zelf op 36 graden. Veel verder durf ik nog niet te gaan. Maar ik merk wel dat er in de ontsteking veel power verscholen zit.