Re: [DML] heat soak

[Martin Gutkowski <webmaster@xxxx>]

Sorry - I must've missed the original post to which this relates.... the 
FanZilla cycles down in the same way that it cyles up, which means the 
fans shut down in sequence when you force them to switch off (by turning 
the key). They only remain on for a couple of seconds. In all my posts 
about my design for an equivalent DIY device, one of the suggestions I 
received was for the fans to shut off instantly when you remove the key. 
It's really easy to do either.

If you're suggesting that leaving the fans running for a time after the 
engine's switched off - this might make sense when the rad is directly 
in front of the engine (some cars do this over here), but when it's half 
a mile away at the other end of the car, with no coolant flowing, what's 
the point?

BTW a turbo requires time to "spin down" while the engine's still 
running (and supplying it with oil). It has little or nothing to do with 
cooling. The Intercooler is something completely different. This removes 
the heat in the air once pressurised.

Martin
#1458

K Creason wrote:

> I seem to remember someone saying they had a fan module that would run the
> fans for a while after turning off the engine. (Like a turbo intercooler?)
> Is that a fanzilla? Or? (Martin? hint hint?)
> Would any valves (and what other systems) need to be opened/powered for
> behavior like that?