Thats what I was thinking watching that too.

 

and what turbo would that be?

a turbo so small that it could spool from airflow/low heat (virtually idle) would blow up immediately.

if you used air pressure alone to spool a turbo, the pressure being built (intake side) would ALWAYS be less than the pressure going in (the source pump's supply). you cannot create MORE airflow by using compressed air to create compressed air. . .that would suggest that the turbocharger is >100% efficient (output airflow is greater than input airflow) which is absolutely impossible (in ANY machine, output energy is ALWAYS less than input energy).

ill put it another way, which will again validate my point. the turbo provides more air through the intake tract than the motor can "eat". if this werent the case, there would be no boost pressure in the intake tract. with that bein said, the motor can only pump so much air. . .if the turbo is supplying the motor with more air than it can eat, then the turbo is obviously supplying more air than the motor can spit out. if a turbo could operate at >100% efficiency levels, then we could say air flow is what generates boost. when its not, its thermal energy. much more energy is being released from the motor (exhaust as a result of the introduction of combustion) than goes into it via airflow (which is also powered by combustion, but isnt what im talkin about).

heat is the powerplant, air is the vessel.

 

Untrue. The engine doesn't push "air" out.

The intake charge contains oxygen, which is used to burn the fuel. The result of that oxidation is MUCH MORE exhaust volume than intake.

The exhaust is very compressed while still in the cylinder. As the exhaust valve opens, that gas continues to expand. Creating sound as it pushes out the exhaust port rapidly. Which is why open pipes are so freakin' loud

A turbo or supercharger is a positive-feedback loop. Push slightly more O2 into the cylinder, get a LOT more power. More power than is used up to push the turbo (or supercharger).

 

Just to add about turbocharging; some older aircraft use a turbocharger to turn a air pump that is connected to the crankshaft to add to the engines horsepower, Essentially, the aircraft's exhaust is used to drive the turbine that turns a compressor with a high rate of airflow. This airflow is pushed through tubes into an air turbine that is connected at the crankshaft and adds to the aircraft's horsepower. It's less efficient than current turbocharger setups but it reduces the weight of the turbocharging system by removing a lot of piping, waste gate, differential pressure valve and intercooler.

 

largest thread ever?

 

The engine is an airpump, and it does The exhaust contains the same about of Oxygen as the intake, its just in different form.
The pressure and/or volume difference is purely due to the temperature change during combustion.

 

No<fillllllllllll>

 

Not to hijack, but I am hearing rumours that Dodge is going back to a V-10 in their HD pickups. I saw one trial with a 0-60 at 6 seconds!! True????

Pap

 

Oxygen in a different form? No.

Same amount of Oxygen? That would be impossible, oxygen is consumed during combustion.

I think what you meant to say was that a lot of heat is given of during combustion. The exhaust gas contains the same amount of mass as the intake gas, but during combustion heat is added and density changes creating an increase in exhaust gas volume increasing pressure.

 

That actually looks like it is going to happen. The engine is borrowed from from Fiat (Ferrari's parent company) but bumped up a few cubes. I read somewhere that its basically a "detuned, stroked and punched" F1 engine.

 

There is the same amount of Oxygen.
For gas its: 2C8H18 + 25O2 ~> 16CO2 + 18H2O
For diesel its: 4C12H23 + 71O2 ~> 48CO2 + 46H2O

Same amount of Oxygen on both sides of the equation

 

I understand if it goes ahead its going to be a version of the 4.7l V8 developed by Ferrari and used in Maserati's & Alfa's but with 2 additional cylinders.


They might want to work on the reliability side of things a little though. Find a Maserati Quattroporte owner who is happy with the reliability of the thing.

 

I want to understand this. How do you have same amount of o2 after combustion? To have combustion/flash you have to have 3 things. Heat/energy, a fuel source and o2. If you remove any one of the 3 you don't have a flash. O2 is burned. Take a candle light it put it under a jar and it will burn out. Why? It burned all of the o2. I do not understand your claim you have same amount if o2 on both sides.

 

I see carbon dioxide and water, not oxygen gas after the reaction
H2O is not a different form of oxygen. Its a different compound in which elemental oxygen can exist.

Don't confuse the conservation of mass as amounts of each compound staying the same. There is oxygen gas present in the intake, but much much less oxygen gas in the exhaust

That did help me notice I mistakenly said consumed however.

 

With the upcoming mpg regs I highly doubt it. Concept vehicles, rumors and etc often never make it to production.