[westfielder]

Excellent post – thank you Vinci.

I am replacing the cooland hoses in my Westfield C20XE that has run with this configuration for 20 years. It does get a bit hot on track.

(Using your terminology from above)

Circuit 1 [color=#FF7C0A]Hello world does not exist – I think I have a “dry” inlet manifold that just has the small gauge bleed pipe (Circuit 3)

Circuit 2 – there is no heater (and therefore no resistance). The pipe is routed straight back to the coolant gallery

Circuit 4 via thermostat, radiator and back to the coolant gallery

 

Though this is working, SBD Motorsport (UK Experts in this engine) suggest that the circuit 2 must not ne used if no heater and that Circuit 1 is very important. Yet I see most manifolds are ‘dry’.

My concern is that the head is not being cooled until the thermostat opens as flow will be:

pump –> block 1-2-3-4 –> heater outlet –> gallery and back to pump because there route from closed thermostat through head to inlet manifold is blocked off at the manifold.

 

When the thermostat opens flow will be:

pump –> block 1-2-3-4 –> heater outlet –> gallery and back to pump AND pump –> block 1-2-3-4 –> Head 4-3-2-1 –> Thermostat –> Radiator –> Gallery –> Pump

Either way I think I may not be getting optimal head cooling??

The question to you is –

1. Do you think my reasoning is correct? If so, then why do people have ‘dry’ inlet manifolds? for thermostat-less configurations??

2. Should I get a ‘wet’ inlet manifold

 

Your thoughts very much appreciated

 

Nick :-) :dank-u:

 

 

 

 

 

[Auteur]

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