Quote:
Originally Posted by Mii
Can anyone share technical aspect of intake pipe fuel injection on the new V8?
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Quote:
Originally Posted by T Bone
I believe you are asking about the 8 individual butterflies throttle bodies.....If you are....
BMW M engines (except the E36 USA spec M3) uses individual throttle bodies for each cylinder. With this engine, BMW is stating that to have the absolute best throttle response, it is critical the distance between the butterfly and intake is minimal.
This means you cannot have a mass air flow sensor to meter the air, instead it uses the butterfly position, throttle position, idle adjust etc to infer the air volume etc....
Just a fancy way to preserve responsiveness of the M engines....
Was this what you were asking?
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That's some major misleanding info.
Intake pipe fuel injection is a fuel injection method, it has nothing to do with air intake or throttle bodies. It's the most common/conventional injection scheme, the injectors are placed inside the intake manifold and squirt fuel at the intake valve/air stream. In a direct inject engine, the injectors are placed inside the combustion chambers.
Throttle body and MAF sensor are what control air flow, they have nothing to do with fuel injection.