Here is a post I took from a S-10 forum. Some very interesting numbers.
Here is a post that i lifted off a Chrysler minivan site so i do not know how accurate these numbers are but i figure they might help us all..
First off they were ALL tested at Battery voltage (12.5v)
first and then with my truck running with a 30ft 4 gauge wire from my battery 14.5v
Not the exact numbers they fluctuate from 150 to 250 cfm this is an average
Battery operated
LS1 FAN SHROUD
1 fan turned on - 4800 cfm
2 fans on - 9500cfm
LT1 FAN SHROUD
1 fan turned on - 5000 cfm
2 fans on - 8700 cfm
1999 Dodge Stratus (both fans are always on - 2 speed)
Slow speed - 3700 cfm
High Speed 9000 cfm
1996 Ford Taurus (1 fan two speed)
Slow speed - 2800 CFM
High speed - 5600 CFM
Alternator Powered
LS1 FAN SHROUD
1 fan turned on - 5100 cfm
2 fans on - 10500cfm
LT1 FAN SHROUD
1 fan turned on - 5200 cfm
2 fans on - 9500 cfm
1999 Dodge Stratus (both fans are always on - 2 speed)
Slow speed - 4200 cfm
High Speed 10400 cfm
1996 Ford Taurus (1 fan two speed)
Slow speed - 3200 CFM
High speed - 6000 CFM
Jack
