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Engine Specific Info and Questions => TDI Engine -General Info => Topic started by: 79rabbit4dr on December 12, 2009, 04:21:30 am
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What are some good brands for turbo timers?
also thinking about remote start, suggestions?
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The best turbo timer is you. Wait 5 seconds before turning the engine off. Longer just wastes fuel.
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5 seconds? thats all? doesnt seem like a turbo and manifold could cool down in 5 seconds. or are you just saying 5 seconds just to let it spin down?
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When I had the turbo installed I waited until the egt gauge pegged at the bottom (250F) before shutting down, a little longer if I'd been running it real hard.
That method only measures the exhaust temp though so the turbo itself is probably really hot still.
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if the exhaust coming out was 250*, the turbo probably wasnt that ridiculously hot.
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Diesel exhaust is far cooler than g@ssers. 5 seconds is more than enough to make sure its cool and at its lowest speed.
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While the gasses may be cooler after 5 seconds, I don't think that's long enough to cool a heat soaked turbo. Its the latent heat from your exhaust manifold & turbine housing that cokes the oil in the journal bearings after you shut down & the oil isn't flowing.
So... buy a house at the bottom of a hill & never buy a turbo'd car from someone who lives at the top of one!
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While the gasses may be cooler after 5 seconds, I don't think that's long enough to cool a heat soaked turbo. Its the latent heat from your exhaust manifold & turbine housing that cokes the oil in the journal bearings after you shut down & the oil isn't flowing.
So... buy a house at the bottom of a hill & never buy a turbo'd car from someone who lives at the top of one!
Hahaha......that's what I was trying to say ;D
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i usually liked to idle my car for around 30 seconds to a minute usually. i never had a EGT gauge, so i figured i might as well be safe and idle it down good.