Turbo Cooling
16 November 2002, 09:44 PM
#1
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Excuse me for being ignorant but is it essential to let my scooby tick over for a minute or two after a hard drive?
I have a MY02 WRX.
It is something that I have been doing after each drive but its becoming a little tedious!
I seem to remember reading on here that if the oil isn't allowed to cool it can damage the engine!
Any advice would be gratefully received.
Thanks
I have a MY02 WRX.
It is something that I have been doing after each drive but its becoming a little tedious!
I seem to remember reading on here that if the oil isn't allowed to cool it can damage the engine!
Any advice would be gratefully received.
Thanks
16 November 2002, 11:15 PM
#3
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If you don´t let the turbo cool down the turbocharger in your car could be damaged.
The perfect solution for you might be to install a Turbo Timer.
[Edited by Knight Rider - 11/16/2002 11:16:07 PM]
The perfect solution for you might be to install a Turbo Timer.
[Edited by Knight Rider - 11/16/2002 11:16:07 PM]
16 November 2002, 11:21 PM
#4
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apparently its not that good to let it sit & idle because of heat soak.. & other associated techinal stuff...
Better to drive sensibly off boost for the last 10 mins of your journey home
Same when starting - better to start moving rather than sit there & idle - keep then engine under as little load as possible until it warms up properly.
Chris
Better to drive sensibly off boost for the last 10 mins of your journey home
Same when starting - better to start moving rather than sit there & idle - keep then engine under as little load as possible until it warms up properly.
Chris
20 November 2002, 12:22 AM
#6
Prior to stopping run off boost for the last four or five mins. and shut down on arrival at destination.
It can take up to 10mls of normal urban driving to reach operating temperature and on the coldest winter days my car may not get to 80cent after 20mls of urban driving so kicking ***, as you put it, after 5mins tick over is not such a good idea and very wasteful on fuel. Indeed, frequent cold starts and tickovers could be harmful because of rich mixture and unburned fuel.
It can take up to 10mls of normal urban driving to reach operating temperature and on the coldest winter days my car may not get to 80cent after 20mls of urban driving so kicking ***, as you put it, after 5mins tick over is not such a good idea and very wasteful on fuel. Indeed, frequent cold starts and tickovers could be harmful because of rich mixture and unburned fuel.
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20 November 2002, 06:58 PM
#9
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yeah, its you m8 
me and my mate dropped you off a couple of bits before
then we came back up from leeds on another run with teh panel filter
met you at teh hotel just on the roundabout
well im sure it was you
me and my mate dropped you off a couple of bits before
then we came back up from leeds on another run with teh panel filter
met you at teh hotel just on the roundabout
well im sure it was you
21 November 2002, 10:28 AM
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This is always worth a try to see for yourself about how hot the turbo can get
Take car out at night. Cane it for a few miles. Stop in darkest place possible (e.g. unlit side road). Leave engine running, sidelights on, lift bonnet ASAP. Watch turbo glowing a nice warm red. Warm hands over engine if cold.
The biggest risk with any turbo car is the "stopping at the motorway services" situation, where the unaware will pull off the M-way having done 150 miles at 85+, pull straight up to the petrol pump and switch off straight away. In other words, from high speed to engine off in 20 seconds. This will certainly fry the oil in the turbo shaft bearings in short order. When coming off at services, definitely leave it idling a minute or two.
On most journeys however, you will have to do 2-3 miles of urban driving in 30 and 40 limits before you switch off, this is plenty to let everything cool down nicely, even if you've been caning it.
Also, the coolant continues to circulate round the turbo by thermosiphon even after switching off.
Take car out at night. Cane it for a few miles. Stop in darkest place possible (e.g. unlit side road). Leave engine running, sidelights on, lift bonnet ASAP. Watch turbo glowing a nice warm red. Warm hands over engine if cold.
The biggest risk with any turbo car is the "stopping at the motorway services" situation, where the unaware will pull off the M-way having done 150 miles at 85+, pull straight up to the petrol pump and switch off straight away. In other words, from high speed to engine off in 20 seconds. This will certainly fry the oil in the turbo shaft bearings in short order. When coming off at services, definitely leave it idling a minute or two.
On most journeys however, you will have to do 2-3 miles of urban driving in 30 and 40 limits before you switch off, this is plenty to let everything cool down nicely, even if you've been caning it.
Also, the coolant continues to circulate round the turbo by thermosiphon even after switching off.
this could invalidate your cat1 status though so check with your insurance co first.
21 November 2002, 03:05 PM
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And at the same time inform your next door neighbors about your car (turbo-timer). Otherwise they might think that there is a Poltergeist in the area!!! *LOL*
BTW: Heat up a pan with oil in it until it's very hot, and leave it stay (cool down) for a while. You will see what happens!!
[Edited by swiss scooby - 11/21/2002 3:13:36 PM]
BTW: Heat up a pan with oil in it until it's very hot, and leave it stay (cool down) for a while. You will see what happens!!
[Edited by swiss scooby - 11/21/2002 3:13:36 PM]
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