TECH:No boost before 1,000 miles?
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TECH:No boost before 1,000 miles?
hi all-
i heard from a friend that in a new turbo charged car, you aren't supposed to use any boost for 1,000 miles....is that true? i have an STi on the way, an i need to know....thanks, any help is much appreciated.
i heard from a friend that in a new turbo charged car, you aren't supposed to use any boost for 1,000 miles....is that true? i have an STi on the way, an i need to know....thanks, any help is much appreciated.
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From: The Hunted Forest
Car Info: Mazda Protege '02 (Wishing protege has AWD and a H6 twin turbo)
basically it just means take it easy on the car for the first thousand. IE, don't redline or hard launch your car. You should still be able to use boost though just not at maximum levels.
No boost? I can't imagine why subaru would ask that. Also alot of people change their oil at 1k becuase it tends to have alot of build up from the break in period.
No boost? I can't imagine why subaru would ask that. Also alot of people change their oil at 1k becuase it tends to have alot of build up from the break in period.
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That be really funny if that was true 
, But its not. Get a boost gauge installed and see if you couldn't help boosting when driving. 
I think what he ment to say is that you shouldn't Rev past 4000 rpms until you hit at least 1000 miles.
Do a search on that subject and you will find a lot of info about the breakin process of our cars.
, But its not. Get a boost gauge installed and see if you couldn't help boosting when driving. I think what he ment to say is that you shouldn't Rev past 4000 rpms until you hit at least 1000 miles. Do a search on that subject and you will find a lot of info about the breakin process of our cars.
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Joined: Feb 2004
Posts: 720
From: The Hunted Forest
Car Info: Mazda Protege '02 (Wishing protege has AWD and a H6 twin turbo)
Basically it just ends being like this people. When you first build these motors you actually build them to be a lil too tight, the portion is really quite microsopic. The rings on the pistons and the main bearings are the big things here that will be breaking in when we fire this new motor up.
But trust me boost already went through the motor when they took it through the 5 mile test course.
Now as you run this guy the rings will loose just a lil bit of material and the constant rubbing will make the cylinder get a pretty much mirror shine as it breaks in with the rings. This is becuase you can't get a perfect finish with a bore and honing tool *shrugs* (at least how its been told to me). If you rev it too high for too long your end up making rings heat up to a point where they damage , also called scoring (like scratching), the cylinder walls. After the 1k point the motor should have loosened up enough where the friction on rings,bearings will not be as soo great in the begginning.
The Breakdown: Motor breaks in at 1k miles polishing a few internals. Motor is then such looser and easier to rev. A looser motor means less friction on the cylinder walls.
Again: just my .02
But trust me boost already went through the motor when they took it through the 5 mile test course.
Now as you run this guy the rings will loose just a lil bit of material and the constant rubbing will make the cylinder get a pretty much mirror shine as it breaks in with the rings. This is becuase you can't get a perfect finish with a bore and honing tool *shrugs* (at least how its been told to me). If you rev it too high for too long your end up making rings heat up to a point where they damage , also called scoring (like scratching), the cylinder walls. After the 1k point the motor should have loosened up enough where the friction on rings,bearings will not be as soo great in the begginning.
The Breakdown: Motor breaks in at 1k miles polishing a few internals. Motor is then such looser and easier to rev. A looser motor means less friction on the cylinder walls.
Again: just my .02
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