smart51
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| posted on 10/4/08 at 01:11 PM |
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where to locate heater valve
Where is the best place to locate the heater valve on my mid engined car? At the back, near the engine and radiator, or at the front by the
heater?
With the heater on full, all the coolant flows through the heater then through the radiator. The valve bypasses the heater.
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Paul TigerB6
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| posted on 10/4/08 at 01:28 PM |
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quote:
Originally posted by smart51
Where is the best place to locate the heater valve on my mid engined car?
I was gonna say in the bin - heaters are for girls!! 
But if you do insist on having one - well i would suggest as close to the heater as possible. Keeps the volume of coolant in normal use high and the
volume of cold coolant getting dumped into the system when the valve opens as low as possible.
Just my logic anyway.
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RazMan
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| posted on 10/4/08 at 03:22 PM |
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I put mine right next to the heater matrix but with hindsight I should have put it close to the engine as the pipes still get quite hot even with the
heater switched off.
Just a thought - are you going to get enough flow with everything going through the heater matrix and valve? I guess it should be ok if you have a
large bore valve (32mm) but my heater valve is only 15mm and would probably overheat the engine.
[Edited on 10-4-08 by RazMan]
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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smart51
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| posted on 10/4/08 at 03:43 PM |
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The engine is a 250cc scooter engine so it isn't going to make much heat. That's why the whole flow will go through the heater when
switched on. The engine outlet was connected to 5/8" hoses on the donor vehicle, the same as my heater matrix. I'm guessing that flow
won't be a big problem apart from the length of the hose getting from the rear engine to the front heater. That's the reason I'd
put the valve at the back, to shorten the run of the hose when the heater is switched to cold.
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