Boost Dynamics ??
Thread Starter
|
Posting Guru
Joined: Oct 2012
Posts: 1,910
Likes: 2
From: Hat Creek Ca
Boost Dynamics ??
I know how the physical aspects of the turbo works, but have wondered why there needs to be load on the engine to produce boost. In neutral no load, engine RPM @ 3000 = no boost, even though exhaust gas is spinning the turbine/compressor. Same conditions pulling load = ~ 22 PSI.
Technical answers anyone??
Mike
Technical answers anyone??
Mike
Fleet Mechanic
Joined: Aug 2006
Posts: 1,465
Likes: 17
From: Jacksonville, FL
I think it is because your engine uses more fuel to spin the engine to 3000 RPM when it is under load as opposed to being revved in neutral?
More fuel means more exhaust gas, which means more boost. Conversely, when you are revving in neutral, much less fuel is used, and there is much less exhaust gas to spin the turbo
At least that is how I understand this to be the reason.
More fuel means more exhaust gas, which means more boost. Conversely, when you are revving in neutral, much less fuel is used, and there is much less exhaust gas to spin the turbo
At least that is how I understand this to be the reason.
Thread
Thread Starter
Forum
Replies
Last Post
Rishsd
1999 - 2003 7.3L Power Stroke Diesel
14
Apr 26, 2013 09:07 AM
