Turbo longevity?
Guest
Posts: n/a
Turbo longevity?
I plan on getting my wrx next month, but I am a turbo newbie.
Two quick questions:
1) Do turbos last? and last? I am a normal commute-style driver, no racing. I also believe in driving a car till it dies of old age. My current Corolla has 150K, and I am finally at peace to let her go.
Can I expect this kind of devotion from a turbo? My know-it-all uncle keeps warning me of the headaches and expense of an aging turbo engine!
2) How important is the optional turbo-boost guage? What exactly is it telling me? It's not cheap, almost $300 I believe.
I have read where folks have chastized Subaru for not making it standard. On the other hand, Subaru didn't feel the need to make it standard?
thanks for any help!
Two quick questions:
1) Do turbos last? and last? I am a normal commute-style driver, no racing. I also believe in driving a car till it dies of old age. My current Corolla has 150K, and I am finally at peace to let her go.
Can I expect this kind of devotion from a turbo? My know-it-all uncle keeps warning me of the headaches and expense of an aging turbo engine!
2) How important is the optional turbo-boost guage? What exactly is it telling me? It's not cheap, almost $300 I believe.
I have read where folks have chastized Subaru for not making it standard. On the other hand, Subaru didn't feel the need to make it standard?
thanks for any help!
Registered User
Joined: Jun 2003
Posts: 564
From: In my SUBY!!!
well if your not going to race then the turbo will last till about 80k before you should rebuild it. but you dont have to. For your second q, you dont need the guage unless your a racer. The guage is there to tell you if somethings wrong from all the pounding of the motor.But you not going to pound it right? peace
Registered User
Joined: May 2003
Posts: 149
From: Pennsylvania
Car Info: 2002 WRX
80K?? I bet it will last well into 100K with oil changes and proper cool down, i.e. no cokeing. Remember he said normal driving..
The boost guage is what a vacuume guage is for a N/A car.
It reads how much vacuume is in your intake then as you open the throttle the intake becomes pressurized.
Vacuume guage reads from atmospheric pressure down into negative. 0 thru -10 (example only)
Boost guage reads from positive pressure down to zero(atmospheric) and then down into negative. +10 thru -10 (example only
Is a boost guage usefull?? It is if you watch it!!! It will tell you of many engine problems. It will tell you if your over boosting because you modified something to much. So if you plan on adding horsepower than that is an ideal way to monitor that you are staying within safe limits.
The boost guage is what a vacuume guage is for a N/A car.
It reads how much vacuume is in your intake then as you open the throttle the intake becomes pressurized.
Vacuume guage reads from atmospheric pressure down into negative. 0 thru -10 (example only)
Boost guage reads from positive pressure down to zero(atmospheric) and then down into negative. +10 thru -10 (example only
Is a boost guage usefull?? It is if you watch it!!! It will tell you of many engine problems. It will tell you if your over boosting because you modified something to much. So if you plan on adding horsepower than that is an ideal way to monitor that you are staying within safe limits.
Registered User
Joined: Jul 2003
Posts: 50
From: Va
Car Info: '04 WRX Wagon - Java Black
Another related question:
As a new WRX owner I also worry about Turbo longevity. In the old days you were required to let the engine idle for about 30 sec - a few minutes (depending on how hard the car was just used) to help cool the turbo and prevent coking.
It seems manufacturers are getting away from that. My wives Audi 1.8T has no such warnings by either the dealer or in the owners manual. To my suprise, no warnings were in my Subaru manual or from my dealer.
So. Is it no longer a concern? Are the motors built to cycle oil through the Turbo even if shut down quickly? Will Mobil 1 provide better protection than conventional oils?
Most of my driving is highway mileage. Any guesses on how that may impact Turbo longevity?
Help!
As a new WRX owner I also worry about Turbo longevity. In the old days you were required to let the engine idle for about 30 sec - a few minutes (depending on how hard the car was just used) to help cool the turbo and prevent coking.
It seems manufacturers are getting away from that. My wives Audi 1.8T has no such warnings by either the dealer or in the owners manual. To my suprise, no warnings were in my Subaru manual or from my dealer.
So. Is it no longer a concern? Are the motors built to cycle oil through the Turbo even if shut down quickly? Will Mobil 1 provide better protection than conventional oils?
Most of my driving is highway mileage. Any guesses on how that may impact Turbo longevity?
Help!
Registered User
Joined: Nov 2002
Posts: 1,780
From: San Diego
Car Info: Boosted Geo Prizm
The stock WRX turbo is oil AND water cooled. There is no need for a cool down period on any of the WRX turbos including the IHI line of upgraded turbo's. When you turn off the car, coolant is passing through it still.
Thread
Thread Starter
Forum
Replies
Last Post
Bobert540
Engine/Power - non turbo (All non turbo Imprezas)
5
Mar 17, 2005 06:53 PM
singsing
Engine/Power - EJ20T (pre-2006 WRX and JDM)
6
May 24, 2003 03:19 AM
