I have built and tuned cars, i know how the use what turbo for what i want (low end, mid, high hp etc).

One last time.

The t3 in the dyno before @4.5k is making 45more hp at the same boost and rpm point because it isputting more air in the engine. Density is far greater than the ko3 (less strain on the turbo and lower heat). That is what you wanted to know. I have shown you, take it all in.

 

I have staited that before. the t3 puts out more air that k03 at theres maximuim.
We are not talking about Work, we are talking about Force.
if you dont know, force is torque.

 

Im not talking about it at its maximum, you said at a given rpm, throttle postion and psi. That is what I among others have shown you. We covered psi is psi, as in pressure, but you claim they make the same power which isnt true (temp and density- more air/flow). But you now seem that you are starting to understand, the t3 or any turbo wont be at its max when a ko3 is. The larger wheels make moving the air much easier and making power more effeciently.

By the way, force is not torque. Force is pressure applyed to something, torque is the forced required to rotation/twisting ofan object. Force causes torque, so the cause cant bet the same as the reaction.

 

Larger turbine wheel requires a lot more torque, that a small turbine. Thats why K03 spools up easier that T3.
I claim that they make same torque at a given RPM, not power.
I have showen that 10% effciency on a turbo adds up to 5% diference in density.
as I staited way before, neglecting thermal expension, intake and exaust restrictions. Thats the density and effciencies neglected.
Torque is Force*distance.

It looks like you cant read, or you have a small short memory.

 

 

As your friends said on the VW forum. Read the analogy with the garden hose.
What the diference between 20 psi in 1" and 20psi in 1" hose.
Same hapens here, 20psi @ 4000RPM and 20psi @4000RPM and the internals stay the same.

 

This was funny to read at first and you guys are hilarious but I am sure everyone who has read this is confused. Kakarot you are right about the engine can only take a certain amount of air at a certain psi. BUT you are mistaking mass air flow for volumetric air flow. the volume of air an engine can take at 20 psi at 70 degrees is totally different than the volume of air an engine can hold at 30 degrees. You CANNOT calculate airflow without temperature. These two different turbochargers CANNOT make the same amount of psi on the same engine at the same temperature without changing any other effects of aftercooling. Obviously there are other things involved but this seems like it is what you two are arguing about.

If you take an open element air filter and put it under the hood in the engine heat and run 20 psi you will make less power then if you take that same open element air filter and put it in the fender where it is out of engine heat and run 20 psi. WHY? Cause cold air is more dense and even at same psi there will be more AIRFLOW cause there are more air molecules.

Now I think you guys should stop arguing.


And by the way, I don't want to come back to this thread and see anyone argue with this topic anymore.

 

I was talking about Volume, not Mass air flow.
Volume is not temperature dipended.
PV=nRT
Mass air flow and density is temperature dipendet.

 

Well there ya go, Now I see how everything works out. Now that we have all that straightened out there is nothing more to discuss. yee ha!

 

I am so happy[sm=massbounce.gif][sm=happybounce.gif][sm=groupwave.gif]