Bought a set of these off FIC- rated at 24pph at 43.5psi, that's all the info provided. #280-158-138/7C3E-AB.
Looking for information relating to 'injector compensation' regarding EBL.

 

Looks like I found the answer- part numbers aside. 23pph = 24.242pph at 43.5psi

http://www.fordracingparts.com/downl...d_Adaptors.pdf

http://www.fordracingparts.com/parts/ics/m-9593-m23.pdf

 

Injector Data Sheet: M-9593-M23, 23 #/hr, EV6

Fuel Pressure: 43

Minimum PW @ 39.15 psi: 0.667
Minimum PW @ 43 psi: 0.683

Offset Compensation versus Battery Voltage:
6.4 Volts: 2781 usec
8.0 Volts: 1872 usec
9.6 Volts: 1392 usec
11.2 Volts: 1088 usec
12.8 Volts: 877 usec
14.4 Volts: 708 usec
15.0 Volts: 654 usec*

Flow rate: 25.4 #/hr

Short PW Compensation versus Pulse Width:
0.015 msec: -228 usec
0.244 msec: -182 usec
0.488 msec: -134 usec
0.732 msec: -85 usec
0.976 msec: -37 usec
1.220 msec: 0 usec
1.460 msec: 0 usec
1.708 msec: 0 usec
1.950 msec: 0 usec
2.197 msec: 0 usec
2.440 msec: 0 usec
2.685 msec: 0 usec
2.929 msec: 0 usec
3.170 msec: 0 usec
3.410 msec: 0 usec
3.660 msec: 0 usec
3.900 msec: 0 usec


RBob.

 

Thanks, just curious about the conversion from Ford to GM psi vs injector flow rate- I tried 2 sites which give me 24.242/24.244 vs your 25.4pph?

 

Using the traditional formula of: NewFlow = OldFlow * SqRt(NewPsi / OldPsi)

Does produce the 24.2 #/hr number.

The 25.4 #/hr number is derived from the data sheet. As the fuel pressure changes the flow rate doesn't change in the traditional sense of flow through an orifice.

The calculation for this uses the "AHISL (lb/s)" value and the FNPW_HSCOMP table.

RBob.