Changing injectors from stock 11p to Siemens Deka 60lb
Posted: Sat Oct 28, 2017 2:26 pm
I got my first ever 11p running fine on a stock 304 with a 424. Now I replaced the injectors to Siemens Deka 60lb
I've read the newbie guide first step was to edit "Run A/F Param - Displacement/inj flow rate (Litres/Grams per sec) using the Ultimate Kinjflow Calculator to 0.041
Car would not start with just this setting
So then I edit both Crank Base Pulse Width vs Coolant Temp tables by dividing all values by 3.03
How do I calculate the Injector opening times vs Battery Voltage table when this is the data sheet for my injector?:
Specifications:
Coil Resistance: 12.5 Ohms / High Impedance / High-Z (No ECM driver modifications required)
Static Flow Rate @ 43.5PSI ( 300kPa ) w/Petrol: 60 lb/hr = 630 cc/min = 453 g/min
Static Flow Rate @ 87PSI ( 600kPa ) w/Petrol: 85.7 lb/hr = 900 cc/min = 648 g/min
Gain: 0.11ms/mg
Offset: 0.055ms
Turn on time @ 14VDC: 1.14ms
Turn off time: 0.85ms @ 600KPa
Connector: Bosch EV1
Series: DEKA 4 ( DEKA IV )
Orifice Type: Multi-orifice
Spray Pattern: 30 Degree Spray Cone
Factory fitted with Viton upper and lower o-rings
Equivalent Part Numbers:
Siemens FI114961, 107-961, 107961
Internal Part Number: HP610CH
Brand: Siemens VDO
CC Rating: 610cc
Ohms (Resistance): High
Length (o-ring to o-ring): 65mm - Full Length
Top O-Ring Diameter: 14mm
I've read the newbie guide first step was to edit "Run A/F Param - Displacement/inj flow rate (Litres/Grams per sec) using the Ultimate Kinjflow Calculator to 0.041
Car would not start with just this setting
So then I edit both Crank Base Pulse Width vs Coolant Temp tables by dividing all values by 3.03
How do I calculate the Injector opening times vs Battery Voltage table when this is the data sheet for my injector?:
Specifications:
Coil Resistance: 12.5 Ohms / High Impedance / High-Z (No ECM driver modifications required)
Static Flow Rate @ 43.5PSI ( 300kPa ) w/Petrol: 60 lb/hr = 630 cc/min = 453 g/min
Static Flow Rate @ 87PSI ( 600kPa ) w/Petrol: 85.7 lb/hr = 900 cc/min = 648 g/min
Gain: 0.11ms/mg
Offset: 0.055ms
Turn on time @ 14VDC: 1.14ms
Turn off time: 0.85ms @ 600KPa
Connector: Bosch EV1
Series: DEKA 4 ( DEKA IV )
Orifice Type: Multi-orifice
Spray Pattern: 30 Degree Spray Cone
Factory fitted with Viton upper and lower o-rings
Equivalent Part Numbers:
Siemens FI114961, 107-961, 107961
Internal Part Number: HP610CH
Brand: Siemens VDO
CC Rating: 610cc
Ohms (Resistance): High
Length (o-ring to o-ring): 65mm - Full Length
Top O-Ring Diameter: 14mm