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EWP®115 Alloy Combo Remote Electric Water Pump & Controller (12V) (Part #8950)

The EWP®115 Alloy 12V is available for purchase in following options:

  • Pump Only (Part #8140) 
  • Kit (Part #8040) 
  • Combo with Controller (Part #8950)

Take total control of your engine cooling with the Davies Craig EWP®115 Alloy Electric Water Pump and LCD EWP®/Fan Digital Controller. The Controller will also manage the operation of your Thermatic® Fan. 

The EWP®115 pump is suitable for small, medium, large, high-performance and 4WD vehicles. It improves engine cooling control and capacity whilst giving you more power and torque and improved fuel economy. Our EWP range are also extensively used in Intercooler Applications.

COMBO CONTENTS
PART DESCRPTION UNITS

EWP®115 Alloy

1

EWP®/Fan Digital Controller & Mounting Plate + Bracket

1

Sensor Thermal - coolant temp - ¼" NPT thread

1

Adaptor - Nylon - In Line, 38mm (2 x 1/4" NPT)

1
1/4" NPT Nylon - Bung 1

Wiring Harness

1

Hose Clamps

4

SCREW - SELF TAP 8X3/8 BZ

1
BLUE 6mm Ring Terminal 1

 

TECHNICAL SPECIFICATIONS
EWP115 Alloy ELECTRIC WATER PUMP      LCD Controller
Operating voltage 3V DC to 15V DC Voltage range 12V DC to 29V DC
Maximum current 10A @ 13V Display LCD size

64.6mm (2.54”) x 55.6mm (2.19”)

Flow rate (max) 139 L/min (36.7 US gal/min) @ 13V DC Maximum current 12Amps
Operating temp. -40° to 120°C (-40° to 248°F) Warning alarm High & low Temp., Above set temp., Sensor short circuit, Pump error, High & low voltage and Sensor open circuit
Pump design

Clockwise centrifugal with volute chamber

Targeted (set) temperatures Singular degrees from:
40°C (104°F)to 110°C (230°F)
Pump weight 920 grams (2.3 lb) Memory Set & targeted temperature
Pump material Aluminium (Powder Coated) Fan cut-in temp. 3°C (5.4°F) above the targeted (set) temperature
Burst pressure 500 kPa (72.5 psi) Controller type PCB with micro-processor
Seal Ceramic face seal Sensor type
Thermister in housing

Self Priming

No, none of our pumps are self-priming

Fits hose sizes

&

Internal Fitting 

35mm to 51mm (1.38” to 2”)

 

-Inlet & Outlet: -16AN ORB

Overrun/ shutdown -10°C (14°F) below set/target temperature or 3 minutes
Indicators Temperature, power, EWP, test, fan, high & low temp, voltage, above set temperature (with alarm)
Push-On fitting Size 

EWP Inlet & Outlet 38mm

  • with 3mm Sleeve (#8510) 44mm
  •   with 6mm Sleeve (#8511) 51mm  
Weight 100 grams (3.5 oz)
Dimensions

Length = 98mm (3.8")
Width = 95mm (3.7")
Depth = 25mm (1”)

  

EWP & CONTROLLER INSTALLATION DEMONSTRATION

 

Combined with an LCD EWP®/Fan Digital Controller (Sold separately Part #8002 or EWP® Combo Pack) will manage both the EWP® and Thermatic® fan operation. The Digital Controller will vary the speed of the EWP® in response to the engine’s coolant temperature. Multiple temperature settings are provided on the Controller for either maximum power or fuel efficiency. The Thermatic® Fan/s will be activated automatically once the engine coolant rises 3°C (5.4°F) above the targeted (set) temperature. The Digital Controller will automatically run on for three minutes (or to 10°C / 14°F below the set temperature) after engine shut down, eliminating ‘heat soak’ and extending engine life. The EWP® Controller Combo Pack is supplied in a do-it-yourself kit with everything you need for fitment to your vehicle’s engine, including an easy-to-follow DIY instruction booklet.

The world’s most advanced total engine cooling management system:


 universal fit

 more power

 more cooling

 increase fuel efficiency

 extend engine life

 world-leading technology

 

EWP® INSTALLATION OPTIONS

Installing an EWP® as an AUXILIARY PUMP

  • Leaving the mechanical water pump in place, install the EWP® into the bottom radiator hose.
  • Remove the thermostat and drill two approx. 3mm (1/8") holes in the thermostat plate to allow some coolant circulation when the thermostat is closed. Re-install ensuring that the thermostat housing is clean and a new gasket is used if required.

EWP® INSTALLATION – disabling Mechanical water pump

  • Leaving the mechanical water pump in place, install the EWP® into the bottom radiator hose and remove the manufacturer’s thermostat.
  • You will need to bypass the water pump pulley by installing an appropriate length belt (not supplied). This method makes for an easy installation.
  • If running the pump continuously remove the thermostat and drill two approx. 3mm (1/8") holes in the thermostat plate to allow some coolant circulation. Re-install ensuring that the thermostat housing is clean and a new gasket is used if required.

In both these cases, the EWP® will pump past the impeller of the mechanical water pump.

Disengaged mechanical water pump (recommended)

  • Remove the mechanical water pump and remove the thermostat.
  • Then remove the impeller from the mechanical pump shaft. Retain the mechanical water pump using the pump pulley as an idler to avoid re-routing the drive belt.
  • Block any bypass passages and re-install the disengaged water pump ensuring that all gasket surfaces are clean and the new gaskets are properly fitted to prevent leaks.
  • Install the EWPÒ into the bottom radiator hose.

Removed mechanical water pump (Ideal)

  • Remove the mechanical water pump and thermostat from the engine.
  • Install a Davies Craig EWP® Header Adaptor or blanking plate (not supplied). Ensuring the gasket surfaces are clean and the appropriate gasket or sealant is used to prevent leaks.
  • Install the EWP® into the bottom radiator hose. This method will require you to modify or replace the standard radiator hose.
  • Install an appropriate length belt (not supplied) to drive the accessories.

In most cases EWP® will be adequately supported by the radiator hose. Where mounting is required, the EWP® must be soft mounted to protect against vibration. For the EWP®115, EWP®140 and EWP®150 Part #8700 or #8710 Mounting bracket is recommended.

 

PRODUCT SELECTION GUIDE
Electric Water Pump (EWP®)
 APPLICATION

 PUMP 

MODEL

PUMP ONLY PUMP KIT PUMP COMBO
12V 24V 12V 24V 12V 24V
 Engines up to 2.0L
(Standard)
EWP®80 #8105 Nylon
#8106 Flange
#8109 Barb
N/A #8005 Nylon
#8006 Flange
#8009 Barb
N/A #8907 Nylon
#8908 Flange
#8919 Barb
N/A
 Engines up to 2.0L - 3.5L
(Standard)
EWP®115 #8125 Nylon
#8140 Alloy
#8126 Nylon
#8141 Alloy
#8025 Nylon
#8040 Alloy
N/A #8930 Nylon
#8950 Alloy
N/A
 Engines up to 3.5L - 5.0L
(Standard)
EWP®140 #8180 Alloy #8181 Alloy #8080 Alloy N/A #8990 Alloy N/A
Engines 5.0L or greater
 (Standard)

Modified Engines 
Supercharged/Turbo,
Drag Racing, 4WD,
Off Road, Drifting & Speedway
EWP®150 #8160 Sliver
#8165 Black 
#8161 Silver #8060 Silver
#8065 Black
#8061 Silver #8970 Silver
#8975 Black
#8971 Silver
Intercooler
(depending on capacity)
EWP®115 #8125 Nylon
#8140 Alloy
#8126 Nylon
#8141 Alloy
#8025 Nylon
#8040 Alloy
N/A #8930 Nylon
#8950 Alloy
N/A
EWP®140 #8180 Alloy #8181 Alloy #8080 Alloy N/A #8990 Alloy N/A
EWP®150 #8160 Sliver
#8165 Black 
#8161 Silver #8060 Silver
#8065 Black
#8061 Silver #8970 Silver
#8975 Black
#8971 Silver

 

For further information, see Product Information

User Reviews

  • Attached to my MGB

    My MGB is still 1800cc, but I was wearing a Fast Road Cam and HS6 carburetor, so I was struggling with overheating in summer when I was riding in the town. One year ago, I was told in a club magazine that I could do a cool run with EWP installed, so I searched Ebay and purchased EWP115KIT. Since the diameter of the cooling hose is φ30mm, it took a little time to connect it. Also, I purchased a rubber mount kit for installation, but because it does not fit in the engine room, I made my own mounting jig and installed it. When you actually start running, you can now cool run at low speed and high speed, and enjoy it without any problems.However, recently, when running in winter, the heater does not work so much, I have currently ordered WBP. I'm going to install it soon and hope to enjoy the drive with the heater working. I'm really happy with the EWP because I can monitor the engine temperature and power generation voltage accurately without worrying about engine blow due to overheating.


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