turbo timing

Submitted: Tuesday, Nov 27, 2001 at 01:00
ThreadID: 570 Views:1446 Replies:2 FollowUps:2
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idling turbos is/was a standard practice, before switching off. Now Toyota recommend no idling after "normal city driving" for it's new Diesel Prados. Any ideas
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Reply By: Joe - Wednesday, Nov 28, 2001 at 01:00

Wednesday, Nov 28, 2001 at 01:00
Bernie,

Keeping the engine running for a short while was to keep the oil flow up while allowing the turbo to spin down to a stop. The oil both lubricated the bearings and also performed a cooling function.

Now the need to allow the turbo to spin down is dependent upon whether or not the turbo has been working, and how hard it has been working. If you have been dragging away from the lights and giving the engine some serous toe then I would certainly be following the idle/cool down process and not just turning it off.

However, if you have chosen to drive more sedately for the last five minutes of your trip then I see no real problem with following Toyota's advice.

The catch is in Toyota's definition of "normal city driving" of course.

Good luk.

Joe
AnswerID: 1501

Follow Up By: Alex - Friday, Nov 30, 2001 at 01:00

Friday, Nov 30, 2001 at 01:00
Mmm, is 'normal city driving' bumper-to-bumper gridlock Japanese style, or the more relaxed, faster Australian style?
How about fitting a turbo timer? This eliminates the need to stay with the car while it cools down, and still allows you the option of switching off immediately. Cheers, Alex.
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Reply By: Joe - Friday, Nov 30, 2001 at 01:00

Friday, Nov 30, 2001 at 01:00
Beware of turbo timers if you have a security system installed. They can be troublesome.

I have heard that some insurance companies will also refuse to insure vehicles with timers installed. This may be total bolleaux, but is worth checking with your insurance company.

Otherwise they are generally a good idea.
AnswerID: 1512

Follow Up By: Nick - Tuesday, Dec 04, 2001 at 01:00

Tuesday, Dec 04, 2001 at 01:00
Hi,

I have a 2.8 patrol and after a friend had to recondition his I decided to fit the timer, but as joe said I was not going to get the insurance. I heard a whisper about an alarm and timer in one. I have had it installed for 2 years now without a problem. I also do a reasonable amount of off road work and because the unit is activated soley off the Key you do not have to worry about killing the engine if required....and the timer unit taking over and keeping the engine running. I'm not sure how it would go with the imobiliser already installed in the prado as I started without this or an alarm. It set me back $530 which is better than a good timer and alarm (installed sepertately). Better still it is made by a company in Adelaide, the branding of the unit being Tsonics. The company who installed (Cyclops) said they had done many of the subaru and turbo rally type cars. They were also professional and did a good job....on site too (Bayside of Melbourne)have a look at http://www.trading-post.com.au/browse.asp?State=VIC&sMsg=Search
Regards, Nick
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