![]() | #31 |
BHPian ![]() | ![]() Just a question here. I drive Swift Diesel. It has a turbo lag and the turbo kicks in at around 2000 rpm. So does that means that before 2000 rpm turbo isn't working at all or is it not rotating hard enough. If my the last part of my drive say the last 2 kms have been slow in traffic and the turbo didn't get a chance to come into play, then in such cases can i turn off the enfine sooner than what i normally do i.e. gap of 30 secs. Thanks |
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![]() | #32 | |
Team-BHP Support ![]() ![]() | ![]() Quote:
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![]() | #33 | |
BHPian ![]() Join Date: Aug 2006 Location: Bangalore
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The Safari-Dicor Owner's manual does recommend a 30-sec idling period on start/stop. Not sure if it is a new addition, but my car's manual has it. Last edited by Su-47 : 2nd May 2007 at 23:05. | |
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![]() | #34 |
Senior - BHPian ![]() Join Date: Nov 2006 Location: Mumbai
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| ![]() Mahindra Scorpio comes with warning sticker and manual instructions that engine should be run in idle mode 1 minute before and after you stop or start it. |
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![]() | #35 | |
BHPian Join Date: Feb 2005 Location: mumbai
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![]() | #36 | |
BANNED | ![]() where are such turbo timers available? can you recommend where I can buy one in Bangalore? thanks Quote:
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![]() | #37 |
Senior - BHPian ![]() | ![]() |
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![]() | #38 | |
Senior - BHPian Join Date: Sep 2006 Location: zxc
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Explanation on turbo timers | |
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![]() | #39 |
BHPian ![]() Join Date: Feb 2005 Location: Mumbai-India
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![]() | #40 |
BHPian Join Date: Mar 2008 Location: Minneapolis, MN/Hyderabad
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| ![]() Pretty much all turbos will benefit from being idled before being shut down. |
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![]() | #41 |
BANNED | ![]() when you start a turbo vehicle like your DI Bolero or the Scorpio you are supposed to idle for 30 sec and then move. While stopping, you are supposed to go a bit easy for a bit, just before coming to a dead halt, then idle for another 30 sec and then switch off. I ve also been in doubt about this and have checked with several TBHP members who own Turbo vehicles and this is what I ve learned from them. |
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![]() | #42 |
Senior - BHPian ![]() | ![]() those of us who have a turbo know at what rpm it kicks in. Just drive it far below that threshold , and as close to idle rpm as possible for a minute before shutting it down |
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![]() | #43 |
Team-BHP Support ![]() ![]() | ![]() Turbo starts spinning once you start the engine. As engine rpm rises, your turbo spins faster. So when you do a cold start there is still a period where the turbo spins dry, but due to low speed there is no damage. However if you start engine and then rev the engine, you are looking at turbo damage. Sadly when you give your cars for service, none of the mechanics at any workshop(I have seen Tata Mahindra and Hyundai) idle the vehicle. For them its full throttle from word go. |
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![]() | #44 |
BHPian ![]() | ![]() My understanding is like this: On a cold engine I agree with what tsk is saying and hence religiously follow the 1 min idling before rolling off. I also follow the 30 second idling before engine shut-off when I know that the car is not going to be in use for at least one hour. On signals, what green horn has said is what makes sense (about staying at low RPM's) and I follow the same procedure. On a warmed up engine - the engine oil is hot and at the viscosity it's supposed to be at (Hence coming into effect quicker). I see no harm in killing the engine at signals. I just ensure i start about 10 seconds before it goes green. Last edited by viper_711 : 19th August 2008 at 15:14. |
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![]() | #45 |
Team-BHP Support ![]() ![]() | ![]() viper its nothing to do with viscosity. when engine is shut off, the oil pump stops and no oil is sent to turbo. So if you were at revs where turbo was spinning fast, when you switch off your turbo will run dry for more time. If you idle you allow turbo to come to a slower speed. So when you shut off engine, oil supply stops and slowly turbo comes back to 0. At full boost I am told turbo's can touch 20,000rpm |
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