Stock Waterpump Vs Electric waterpump

[Black02SLPSS]

Which doe you prefer? And also does anyone know how many gallons per minute a stocker flows?

[jag42420]

I've never found exactly what gmp stock LS1 water pumps flow. Aftermarket belt driven LS1 water pumps like EMP Stewart Components claim flow as high as 140 gpm (without a thermostat). Most electric water pumps flow 35-55 gpm, depending on what brand you look at, and run $400-800. They claim to be 20% faster than stock, which would put stock somewhere around 25-30 (I assume). Electric water pumps free up some HP by reducing drag, but are too co$tly for most.

[lonewolf37]

The electric water pump is a good addition when running an underdrive. The underdrive slows down the stock water pump. The other good idea is a constant pump speed in city traffic. It really does help keep your motor cool. Here in Central California that is important.
If nothing else it looks great under the hood!

[Ed Blown Vert]

I run one so I can cool down the car fast at the track.

[Hi-Po]

I run one so I can cool down the car fast at the track.

An absolute must (cooling down) at the track for multiple runs at the 1/4 mile. Especially with your times.