mjwilmo wrote:Likely stupid question, but ive always wondered how the turbo cools down quicker with the engine on as opposed to turning the engine off... surely without the engoine on, and all the moving parts etc, it would cool quicker?
obviously not, but why not?
snowman wrote:apparently it is not the timer install that is illegal but leaving an unattended vehicle running.
snowman wrote:apparently it is not the timer install that is illegal but leaving an unattended vehicle running.
chick_magnet_0001 wrote:mjwilmo wrote:Likely stupid question, but ive always wondered how the turbo cools down quicker with the engine on as opposed to turning the engine off... surely without the engoine on, and all the moving parts etc, it would cool quicker?
obviously not, but why not?
its a two handed deal: one your actually more interested with the turbo slowing down to low rpm because when the engine is switched off the turbo is still spinning with no oil pressure hence why u shouldn't turn your car off straight after pulling big rpm or high load. two: your turbo builds heat from large amounts of hot exhaust gases hence when the engines idled these gasses are not as hot(hence why your turbo doesn't really spool up untill 2000 or so rpm) and thus causes the heat in the turbo to dissipate with the flow of cooler gasses flowing through it.
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