Davies Craig Electric Water Pump ~ size and performance.

It’s said that size doesn’t matter. Vehicle engines are supplied in a variety of capacities and have done so since they first rolled off the production line. One can head into a car showroom or log-on to a website and be greeted with engines from a mere one litre to 7.5 litres! Therefore, each car’s cooling system designed for a specific engine capacity will require a differing cooling system.

How It Works Without An EWP^®.

Let’s take a quick look at how a mechanical water pump system operates. Whilst an engine is not running, there is no coolant circulating through the engine, as the radiator or heat exchanger requires coolant to be physically flowing through the radiator core to “exchange heat” and keep the engine at a manageable temperature.

When the engine is running it drives a belt-driven mechanical water pump which is generally mounted on the front of the engine block. The engine’s mechanical water pump design propels coolant to and from the radiator. In simple terms, heat soak occurs when the engine or its components remain extremely hot, even after turning off the ignition. The downside to the old mechanical water pump system is that once the engine has been switched off there’s no coolant flow with the result that ‘heat soak’ develops. Higher capacity engines, or engines underload generate a lot of heat and therefore really need a more efficient method of cooling. This is where a Davies Craig Electric Water Pump (EWP^®) can make a huge difference. Which model Davies Craig EWP^® will best suit my engine for the optimum cooling performance? Check out the Davies Craig website, www.daviescraig.com.au https://daviescraig.com.au/electric-water-pumps  

What About Performance?

Davies Craig Pty Ltd is a renowned Australian owned and operated manufacturing company of 50 years standing and offers a wide range of automotive aftermarket Electric Water Pumps and Electric Booster Pumps. The so-called EWP^®s are ranked in reference to the coolant flow capacity, litres/gallons per minute. There are currently four Electric Water Pump models and it’s important to note the intended usage against the flow rate per minute. There is models, EWP^®80 that will generate 90 litres per minute, EWP^®115 generating 139 litres per minute, the EWP^®140 generating 147 litres per minute and the EWP^®150 generating 162 litres per minute. The EWP^®150 is intended to be used in high performance, turbocharged/supercharged and large cubic capacity engine applications.

For example, your vehicle has a fuel injected 350ci or 5.7L Chevrolet V8 engine. It’s been “chipped” for better performance, then obviously an EWP^®80 which is intended for an engine capacity up to 2.0 litres, t wouldn’t be suitable. On the other hand, the EWP^®150 which pumps out 162 litres per minute would be the matching product to suit.

At the other end of the spectrum, installing an EWP^®150 into a 2.0L engine, this model more than manage this engine but would be an ‘overkill’ for this engine. That is, of course, presuming it’s a stock engine and being used for nothing other than normal driving. Hook an EWP^®150 to a race-spec 2.0L being used in a drift or burn-out competition.

www.daviescraig.com.au is the one stop online shop for your extra cooling needs. Stay tuned via our social media outlets and here on our blog.