Question about stock(?) boost
Thread Starter
Registered User
Joined: Sep 2003
Posts: 26
From: Bethesda, MD
Car Info: 2002 WRX White, 2005 STi Black
Question about stock(?) boost
Guys,
I just purchased a 2002 WRX used. It came with an autometer boost gauge installed. It runs at vacuum while at idle, but in all gears boost is about 13.5lbs. I checked under the hood, and see the stock T-fitting where a boost controller would be mounted. Any thoughts?
I just purchased a 2002 WRX used. It came with an autometer boost gauge installed. It runs at vacuum while at idle, but in all gears boost is about 13.5lbs. I checked under the hood, and see the stock T-fitting where a boost controller would be mounted. Any thoughts?
Negative "boost" is normal at idle, normally read in mmHg(millimeters of Mercury). It is the amount of air(read by pressure) that the engine is pulling in to run relative to atmospheric pressure. (Imagine the pistons drawing in air when the valves are open and piston is moving away from valves.
PSI is the amount of air, in pressure, the engine is seeing that is being supplied by the turbo relative to atmospheric pressure.
If you ever want to confuse someone tell them that your car runs 28 PSI of boost stock. 14.7 psi of atmospheric "boost" plus the 13.5 PSI of additional boost supplied by the turbo.
Hope this helps.
PSI is the amount of air, in pressure, the engine is seeing that is being supplied by the turbo relative to atmospheric pressure.
If you ever want to confuse someone tell them that your car runs 28 PSI of boost stock. 14.7 psi of atmospheric "boost" plus the 13.5 PSI of additional boost supplied by the turbo.
Hope this helps.
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From: Longing for my ol' white '02 WRX :(
Car Info: 2016 Acura RDX ... meh. Um, nice subwoofer?
Visible? Yes. A reflash would be virtually undetectable and could be done to give you greater boost in lower gears.
jason
jason
Thread Starter
Registered User
Joined: Sep 2003
Posts: 26
From: Bethesda, MD
Car Info: 2002 WRX White, 2005 STi Black
Maybe that's why I get full boost in all 5 gears? Is there any way that I can tell if my ECU has been reflashed, so that I can cross that off my to do list?
Thread Starter
Registered User
Joined: Sep 2003
Posts: 26
From: Bethesda, MD
Car Info: 2002 WRX White, 2005 STi Black
I bought the aftermarket bumper to bumper warranty, so I should be ok. Plus I bought it from that same dealer, I doubt they would give me an issue, b/c they are the same people that sold me the car...
Unless they knew it had a reflash when they sold you the car, they can still deny the extended warranty you bought. Take it back to a different dealer to get it checked out.
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