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Thread: Cool running thermostat

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    Regular Member Spikeyİ's Avatar
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    Default Cool running thermostat

    Do these make much difference? I'm thinking particularly when coupled with an induction kit, will the 10degree or so drop in engine running temp help to cool the air in the engine bay, therefore increasing the effect of the induction kit??

    It sounds like a logical theory to me, but anyone know how much effect this has in practice?

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    Regular Member Doug-SRidirect's Avatar
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    Would you not get a problem of sludge in the oil, due to the engine not getting up to it's proper operating temperature. Surely it would be like doing continuous short runs, which we all know, is sooooo bad for the engine.
    Doug

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    Regular Member Spikeyİ's Avatar
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    Why would you get sludge in the oil? Would it be because if the oil is not at the right temp it wouldn't carry particals to the oil filter or something like that?

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    Regular Member Doug-SRidirect's Avatar
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    No, I think it's more to do with condensation mixing with the oil and emulsfying, which is evident as a mayonaise like (but not the taste!) build-up around the oil filler. This is why one of the first thing people who know about cars check after opening the bonnet - they remove the oil filler cap to look for sludge - a sign of lots of short runs, the engine never getting up to it's proper temperature.
    Doug

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    Regular Member Spikeyİ's Avatar
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    Learn something new everyday i do!

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    Ex Vec-C Admin & Founder Graeme's Avatar
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    i was going to order this from courtenay but was advised by mate in dealership that they are a waste of money as its a standard vaux part. he has tried most things on his cars (his sportshatch was in TV this month) so trust him on his judgement

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    Regular Member Spikeyİ's Avatar
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    Hi Greame,

    Do you mean it's the same part that's already in, or a part you can get from Vx cheaper?

    If it's the same part, why would sites claim it runs cooler? Seen these elsewhere other than Courtneys, surely this would be false advertising?

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    Regular Member Doug-SRidirect's Avatar
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    Am I missing something?
    I always thought it was more efficient for the engine to run hotter, whilst the intake air should be as cold as possible (max oxygen).
    In the good (bad?) old days, the air intake on the carburettor (remember those?) often could be moved and it was standard procedure to turn it in the winter to face the exhaust manifold (to stop the carb freezing). Pointing it away towards cold fresh air in the summer ensured maximum efficiency.
    Doug

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    Regular Member Andy's Avatar
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    i thought these were for quite heavily tuned engines that ran quite hot or took a lot of abuse? The idea was to try and keep the tempretaure at a normal level when its getting a thrashing, eg rally/race cars

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    Ex Vec-C Admin & Founder Graeme's Avatar
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    Quote Originally Posted by Andy
    i thought these were for quite heavily tuned engines that ran quite hot or took a lot of abuse? The idea was to try and keep the tempretaure at a normal level when its getting a thrashing, eg rally/race cars
    that would make sense actually andy.
    Courtenays site does suggest its to keep engine at optimum temp.

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