Recent content by sofaspud

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    Automotive Heat/energy balance for a high power petrol engine

    Bear in mind the figures I quoted are intake temps, not the usual outlet temps. I agree hotter is better & in this case no knock triggers have been seen on the datalogs. But it was found the deck needed 20 thou & head face 6 thou to true them up again so it suggests these engines do not like...
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    Automotive Heat/energy balance for a high power petrol engine

    Nissan Skyline with 3l single turbo engine measured just short of 800 bhp at the hubs. Where the temp(s) were sampled was part of the trouble I had convincing him on. He finally accepted the water temp was measured at the intake to the engine, & regularly saw temps of 95+ deg C. Oil temp was...
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    Automotive Heat/energy balance for a high power petrol engine

    The car has already completed a seasons racing in classic thunder championship. http://www.classictouringcars.co.uk/ This is 2 races per meeting each approx 35 miles duration for which I was helping a friend during the seasons racing. Found it to be a good championship, just lacking some...
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    Automotive Heat/energy balance for a high power petrol engine

    Thanks for those links Jack. The one discussing the cup car seems to be taken from the Stewart website http://www.stewartcomponents.com/tech_tips/Tech_Tips_6.htm I presume is based on the generator o/p @ 95% efficiency? The Cat site certainly gives more info than Cummins. Given the...
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    Automotive Heat/energy balance for a high power petrol engine

    Hi, first post newbie here, so go easy please:smile: I'm trying to get a grip on the understanding of a car cooling system for a friends race car. It seems the more I look into it the more questions I'm left with. For this post I would like to clarify the coolant side, leaving the air side...
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