AEM 30-6905 Universal Programmable EMS-4 - Manual (Page 189)

Page 189 of 279 EMS-4 Install and Tuning Guide_Rev 1.6
Naturally Aspirated Piston Engines W/ Pent roof
Combustion Chamber
Ignition Timing
L 100 15 22 32 33 33 33 33 33
O 90 15 22 33 34 34 34 34 34
A 80 15 22 33 35 35 35 35 35
D 70 15 23 35 35 35 35 36 36
60 15 24 35 35 36 36 37 37
I 50 15 24 35 35 36 36 37 37
N 40 15 24 37 37 38 39 40 40
30 15 24 37 37 38 39 40 40
K 20 15 25 40 45 45 45 45 45
P 10 15 25 40 45 45 45 45 45
A 1000 2000 3000 4000 5000 6000 7000 8000
RPM