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Maw Solutions Ltd Henfield, W Sussex Phone: 01273 493343 Email: info@mawsolutions.com |
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When installed as a replacement it outperforms the old pump, not only by improving cooling efficiency, but also enabling the engine to transmit previously wasted power to the road. The manufacturers estimate a power gain for a typical 6 litre vehicle (the power which was previously soaked up by the belt-driven water pump) of 10kW (approx 13bhp) in addition to savings of up to 4% in fuel economy. The EWP110 can either assist the original mechanical pump, or replace it. Generally though, an EWP80 is likely to have enough capacity for most “assisting” situations, whereas the extra capacity of the EWP110 is more likely to be used as a sole or replacement pump.
In a race engine, the EWP110 will normally be wired direct into the ignition, possibly with the addition of an override switch or a turbo timer to allow the pump to keep working after engine shutdown, and so prevent heat soak problems. But in most installations a pump controller will be required. This is an electronic device which senses engine temperature and varies the speed of the pump, and hence the rate of coolant flow through the radiator, to maintain close temperature control. Installation The pump is designed for universal fit, and comes with everything you need to install it, including detailed instructions. The pump is fairly compact, a large handful weighing around 2.25 lbs. It is made from glass filled nylon, which will live happily in an engine bay environment. Although designed for negative earth systems, the pump is happy to work on positive earth cars with suitable wiring changes. Please feel free to phone us on 01273 493343 to talk about any EWP110 application |
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The EWP110, launched in late 2005, is the largest capacity pump in the Davies Craig range. Modelled closely on the successful EWP80, the all new pump is bigger and even better. With a flow capacity of 110 litres/minute, and an integral cooling fan for improved pump life, the new pump is suitable for installation in large V8’s, from 5 to 8 litres, some highly tuned smaller engines, big 4WD’s and commercial vehicles including medium sized trucks.
The pump is normally installed in the bottom (return) radiator hose, with its weight supported by the hoses - generally there’s no need for any bracketry. Inlet and outlet connections are 35mm diameter (with sleeves up to 50mm), and can be mounted in a variety of positions to suit most hose configurations. If you find that you need two straight adaptors or two 90-degree adaptors, rather than the one of each supplied with the pump, just let us know. A competent fitter can complete a straightforward first-time installation in approx 3 hours, although complex installations may take a bit longer. Click to see the