What is a turbo timer?
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Joined: Nov 2002
Posts: 26,491
From: Danville, CA
Car Info: E92 M3, E70, F32, E21
a turbo timer is a device that times ur tubo...i.e. it lets the car run for 30 seconds to a minute in order to cool down the turbo. SOA says you dont need to time the turbo, but a lot of people do time it to be on a safe side.
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just to add to that.
The reason to owning one though is to prolong the life of your turbo!!
When you are really on the car and spooling the turbo alot, of course it going to get really hot! (Exhaust Gases)
Well it is damaging to just shut your engine down and let your turbo cool on its own!
So they make these Turbo Timers, so depending on how you have it set in time! When you turn the key to off, the engine keeps running for your desired time to allow the turbo to spin slowly and cool down while you can walk away feeling better about your self. In all it will help your turbo last longer!
Its just a benefit to use it, not a requirement on a stock turbo car!!
The reason to owning one though is to prolong the life of your turbo!!
When you are really on the car and spooling the turbo alot, of course it going to get really hot! (Exhaust Gases)
Well it is damaging to just shut your engine down and let your turbo cool on its own!
So they make these Turbo Timers, so depending on how you have it set in time! When you turn the key to off, the engine keeps running for your desired time to allow the turbo to spin slowly and cool down while you can walk away feeling better about your self. In all it will help your turbo last longer!
Its just a benefit to use it, not a requirement on a stock turbo car!!
Guest
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on my talon after a hard drive you can actually see the exhaust manifold and exhaust side of the turbo glowing. (when its dark out anyway). the turbines spin at insane rpms,i once heard as high as 100,000. if you were shut your car off as soon as you pull into your driveway you no longer have oil flowing, and what was left in the turbo will in essence bake itself from the extreme heat. to answer your question, it's not something definetly need as long as you let the wind down. it just helps you to know how long it needs to do this.
-PJ
-PJ
Registered User
Joined: Nov 2002
Posts: 261
From: So. Ca., CA USA
Car Info: 03 WRX / 08 Forester
Originally posted by WRX_RIFF_RAFF
just to add to that.
The reason to owning one though is to prolong the life of your turbo!!
When you are really on the car and spooling the turbo alot, of course it going to get really hot! (Exhaust Gases)
Well it is damaging to just shut your engine down and let your turbo cool on its own!
So they make these Turbo Timers, so depending on how you have it set in time! When you turn the key to off, the engine keeps running for your desired time to allow the turbo to spin slowly and cool down while you can walk away feeling better about your self. In all it will help your turbo last longer!
Its just a benefit to use it, not a requirement on a stock turbo car!!
just to add to that.
The reason to owning one though is to prolong the life of your turbo!!
When you are really on the car and spooling the turbo alot, of course it going to get really hot! (Exhaust Gases)
Well it is damaging to just shut your engine down and let your turbo cool on its own!
So they make these Turbo Timers, so depending on how you have it set in time! When you turn the key to off, the engine keeps running for your desired time to allow the turbo to spin slowly and cool down while you can walk away feeling better about your self. In all it will help your turbo last longer!
Its just a benefit to use it, not a requirement on a stock turbo car!!
(from June 2001 TechTIPS published by Subaru for Subaru Technicians):
"2002MY WRX TURBO COOL DOWN PROCEDURE
FHI's posistion regarding this is that it is not necessary to perform a "cool down/idling" procedure, as was recommended with past turbo models. Our current 2.0L turbo engine has a far greater cooling capacity and, coupled with technology advances, makes this practice no longer necessary. This explains why information about cool down is not included in the 2002MY Impreza Owner's Manual.
The heat contained in the turbo charger will begin to vaporize the coolant at the turbo charger after the engine is stopped. This hot vapor will then enter the coolant reservoir tank which is the highest point of the coolant system. At the same time the vapor exits the turbo charger, coolant supplied from the right bank cylinder head flows into the turbo. This action cools the turbo charger down. This process will continue until the vaporizing action in the turbo charger has stopped or cooled down."
Granted, I would never run my car hard and then park it. I always take it easy for a few blocks before I reach my destination. This way all components have a chance to "cool down" to normal operating temperatures. Having a turbo timer won't hurt anything, except for the fact that you have to leave the car out of gear while unattendended.
Kean
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