Porsche 1972 911 Workshop Manual page 957

91
I g n i t i o n S y s t e m
-
C E N T R I F U G A L A D V A N C E C U R V E T Y P E 9 1 1 S C M O D E L 7 8
C
500 1000 1500 2000 2500 3000 3500 4000
0
Distributor Shaft Speed (rpm)
7 8
V A C U U M A D V A N C E C U R V E T Y P E 9 1 1 S C M O D E L
B T D C
0
ATDC Vacuum (mbar) 100 300