Does this help? PRO-NOR-SRP-01-50 P 15/16
COST INDEX FOR LONG-RANGE CRUISE
The flight crew can use the table below to find an approximate Cost Index value that is calculated for cruise at long-range cruise speed. This value is valid for CRZ FL = OPT ALT ± 1 000 ft.
ENGINE / CILRC kg/min / CILRC 100 lb/h
CFM 56-5-A1/A3 45 60
CFM 56-5-A4/A5 40 55
CFM 56-5-B1/B2/B3 65 85
CFM 56-5-B4 (A321) 65 85
CFM 56-5-B4 (A320) 55 75
CFM 56-5-B4/P 25 35
CFM 56-5-B5/B6/B7 25 35
CFM 56-5-B5/2P CFM 56-5-B6/2P CFM 56-5-B7/2P 30 40
CFM 56-5-B8/B9 15 20
CFM LEAP-1A 40 55
PW6122/PW6124 20 30
PW1100G-JM 40 55
V2500-A1 45 60
V2522-A5/V2524-A5/ V2527M-A5 50 70
V2530-A5/V2533-A5 50 70
V2527-A5/V2527E-A5 40 55