People are still posting on this thread? Huh! Who would have guessed.....

 

your mass is universally constant. it cannot be changed but your weight can. you said why in your last statement.

 

imagine that huh? so about that 2.8 power... exhaust is probably what will make you most satisfied with the car. water/meth injection is a good idea in any car too, you might even be able to get another few degrees of timing with it.

 

no. its not. not even close. its so far from being correct its very difficult to even decipher what you are saying.

You may not have been learning about cubif feet but you should have known that feet is not a measurement of mass. That, i know for sure, is something taught in primary school.

Well i continue to give you facts, math, physics and you continue to post garbage that makes no sense. You can either sit down, shut up and learn something, like you say you are here to do or consider this your punch in the mouth.



No, in terms of theoretical physics, mass is not weight. But in the practical application of measuring air flow through an engine the mass flow is measured in weight. BECAUSE, as you pointed out we are all on the same earth, henceforth gravity has the same effect on everything. Ergo a mass can AND IS ALWAYS described by units of weight relative to the gravity of the earth and corresponding to, or representing, it's mass.

weight of an object = mass * gravity.

gravity is a constant, for all intents and purposes unless you want to make the math more complicated that it needs to be.

So for the sake of conversation and sanity

weight = mass.

the only time when this is not precise enough is in a physics class, but even then does not make anything happen which you are trying to say happens, such as CFM being a measure of mass. It's just not. It never will be. Go learn you a book.

 

Thanks, I appreciate the input. I know I need to open that bitch up and make it breathe better, but I have no money right now..... I have to wait till after I get back from basic and tech school, that's when I'll have some cash. It's nice to know someone out there actually remembered the original topic and isn't busy arguing about CFM. BTW, I wonder if this thread is close to setting a site record on amount of posts.....

 

o dear god. air is a compressible gas, and therefore its volume can be changed. so CFM is measured in MASS not volume or else the term would be ambiguous and not constant

 

nah theres threads that have gone for 50 pages lol. im done posting here these kids can duke it out.

 

Compressing it, as a turbo or supercharger would, does not change the volume. The volume is determined by the container.

There are 2 ways to look at it

1) You could talk about a certain volume of Air.

A 1 cubic foot box of air is compressed to twice atmospheric pressure. And for simplicities sake we say it is not heated. At that point you have the same mass of air but it's volume would now be half of what it was before you compressed it.


2) The compressed air will still fill the same amount of space. That space will just have a higher density.


I'm really not sure what your problem is in understand this. It's very basic and very intuitive.



I think I see this is where you are hanging up. You cannot compress something without affecting it's volume. To compress something and still fill the original volume you must add more than you originally had.

 

temperature was my whole point earlier. re-read that post. when its colder and denser it is moving more CFM, because there is more MASS moving through. get it now?

exactly, and that means more CFM. if you were right then all turbo's would flow the same CFM, and that statement is a joke.

you just contradicted your first statement.

exactly, you add more mass, hence a higher CFM.

 

AHHHHHHHHHHHHHHHHHH@@@@@@!!!!

NOOOOO!


Higher MASS, yes. Same CFM. Mass is not space. Cubic feet is NOT effected by density. More lbs/minute in the same space, higher DENSITY.