Thread: Na->Turbo
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  #45  
Old 09-02-2015, 08:55 PM
leathermang leathermang is offline
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Join Date: Sep 2001
Location: central Texas
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Diesel911,
You are leaving out major basics with almost everyone of your statements.
It is not legit to use increased speed ( read RPM ) for a diesel engine without a change in gearing. That is because due to the valve train limitations with regard to overlap , as compared to a gas engine, and added stroke distance.... the diesel simply has physics limitations to the rpms.
To get more power or torque you need both more fuel and more air... not just the air.
In imagining that a normally working 21 to 1 diesel is suffering from lack of oxygen to burn fuel is just not in line with the physics of our engines.
The same with imagining that nitrogen is getting in the way of the oxygen and fuel getting together... you are visualizing a much faster burn than happens in a diesel engine.
It is REALLY not legit to use gasoline engines for trying to prove diesel concepts... they do not have the valve overlap restriction that diesels do... thus they CAN increase their rpms with a result in more horsepower and torque...
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