Termostat blank / bypass
Turbo Mini Forums

Im running an electric water pump and it will be switched so that it will still run after the engine has been turned off.

The question is, shall i just leave the thermostat out or should i put one of those blanking sleves in?

Rick

SECTION TWO: OPTIONS FOR PUMP CONTROL
1. With EWP® Digital Controller, P/No - 8020:
Use the EWP® digital controller for optimum temperature control. Set the temperature of the engine for
increased power or fuel efficiency! The Digital controller has an in-built function to allow the EWP to runon
after ignition is switched off thus eliminating heat soak. This option requires the removal of the engine
thermostat and the mechanical pump impeller or pump belt. The cabin heater may take a little longer than
usual to warm up. This can be improved by installing an Electric Booster Pump (EBP) , Part Number 9001 to
the heater line.
OR
2. With Davies, Craig Thermal Switch, P/No: 0401:
Combine the EWP® with a thermal switch when the EWP® is used as a booster pump to the existing
mechanical pump in an overheating cooling system. With the thermal switch connected to the battery, the
EWP® will run on after a hot engine shut down, eliminating heat soak. Leave the thermostat in place, but
make sure the EWP® runs only when the thermostat is open.
OR
3. Continuous running:
Wire the pump direct to the ignition for maximum cooling (race vehicles, very hot climates). This option
requires the removal of the Engine thermostat and the mechanical pump impeller or pump belt. This option
may also be used for road cars with the thermostat in place with a small hole (suggest 5mm), allowing a
small amount of flow to circulate while the thermostat is closed.

Taken from Davies web site.

Si

I drill holes in everything..!

Chears si.

Should of looked at the instructions.lol

Rick

website:- http://www.terryhunt.co.uk

Whats the benifit of fitting one ??

Rick

At a guess, I would imagine you would get alot of cold water from the pump going straight back into the top of the rad rather than through the block where it absorbs heat. That is if one isn't fitted

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse

Yes I was told that from steve at MED, he said without the blanking sleeve cly 4 runs very hot and you can crack the head.