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Forum: Diesel Discussion

08-04-2004, 12:20 AM

Replies: 52

Diesel performance and altitude...

Views: 5,372

Posted By P.E.Haiges

Brian, You don't just "dial up" a turbo. The...

Brian,

You don't just "dial up" a turbo. The turbo will pump so much air depending on the design and size of the impellers and how fast it is going. The boost pressure is controlled by the waste...

Forum: Diesel Discussion

08-03-2004, 10:32 AM

Replies: 52

Diesel performance and altitude...

Views: 5,372

Posted By P.E.Haiges

Brian, There is a difference between...

Brian,

There is a difference between absolute pressure and gage pressure. Absolute pressure at sea level is ~14.7 PSI but a gage reads that as 0.

So if you have a gage on the manifold at...

Forum: Diesel Discussion

08-03-2004, 09:53 AM

Replies: 52

Diesel performance and altitude...

Views: 5,372

Posted By P.E.Haiges

Brian, The 26.7 PSI you mentioned is...

Brian,

The 26.7 PSI you mentioned is controlled by the wastegate. So if the turbo is strong enough, it could maintain the same pressure at altitude up to the point where the air is too thin for...

Forum: Diesel Discussion

08-01-2004, 10:45 AM

Replies: 52

Diesel performance and altitude...

Views: 5,372

Posted By P.E.Haiges

Tony, NA engines don't have an ALDA. ALDA is...

Tony,

NA engines don't have an ALDA. ALDA is used to increase fuel delivery when Manifold pressure becomes positive.

P E H

Forum: Diesel Discussion

07-26-2004, 10:19 AM

Replies: 52

Diesel performance and altitude...

Views: 5,372

Posted By P.E.Haiges

Twitch, The gray smoke you see when you ...

Twitch,

The gray smoke you see when you start the engine is unburned fuel. When the starter cranks the engine and it doesn't fire, vaporised unburned fuel and air is pushed into exhaust system by...

Forum: Diesel Discussion

07-08-2002, 11:42 PM

Replies: 52

Diesel performance and altitude...

Views: 5,372

Posted By P.E.Haiges

JimB+ I was out running everything in my '80...

JimB+

I was out running everything in my '80 300SD on the interstate near Vail CO (about 10,000 feet) everything on the road, even the V8s. 60 MPH minimum in "S" at 4000 RPM on the steepest...

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