weber cfm flow rates

[sen2two]

Heres some i found, not sure of the accuracy... but seem reliable.



Source: JayCee Ent./Perf.Tech- flowed on Superflow 600 @25" water

Weber 48mm IDA w/44 venturi-348cfm (per venturi)
Weber 51.5mm IDA w/47.5 venturi-395cfm (per venturi)
JayCee 62mm /55 venturi -633cfm (per venturi)



with 20" water

Holley 1150 Dominator (4 barrel) 1180cfm (est.) total
Weber 48mm IDA w/44 venturi-311cfm (per venturi)
Weber 51.5mm IDA w/47.5 venturi-353cfm (per venturi)
JayCee 62mm /55 venturi -565cfm (per venturi)




Source: Gene Berg Ent. no flow specs given

Weber 48mm IDA 40mm venturi-561 per carb
Weber 48mm IDA 42mm venturi-583 per carb


Source: CB Performance 1991 catalog- no flow specs or venturi sizes
I assume these numbers are @28" H2O per venturi

Dell'Orto 48mm DRLA 388.5cfm
Weber 48mm IDA 372.1cfm
Dell'Orto 45mm DRLA 329.3cfm
Weber 44mm IDF 292.3cfm
Dell'Orto 40mm DRLA 266.4cfm
Weber 40mm IDF 212.8cfm
Dell'Orto 36mm 205.8cfm