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Old 05-24-2012, 08:23 PM   #43
amoosenamedhank
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Quote:
Originally Posted by EnJoIthaReX View Post
X2..Well stated my friend

What? Your intake tract might not be a variable but whats inside of it is. Do you understand how PSI, CFM, and VFR are all related? Changing the turbo will change this, or what would be the point in a turbo upgrade?

Thats why when you read compressor maps your either plotting of CFM or MFR (lb/min) on the X axis. Psi is figured in the Pressure ratio along the Y axis.

OP you have alot of reading to do. Even going off the garret site alone isnt enough. They too, over simplify things.
Heres little preview
Psi=Restriction.
CFM (cubic feet per min)=How fast the air is flowing
CFM is a measurement of VFR (volumetric Flow rate)

If turbos are too difficult to understand. Think of 2 rooms. 1 room is 10 X 10 and the other is 20 x 20. If you fill both rooms to 100psi and theyre both the same temp, and you hold the pressure. Which has more air? The larger. Sure if you decrease the temp in the smaller room you can get more air. But the same could be said for the larger. Or more psi would mean more air in both rooms. Get it?....This is similar to how turbos work. But this concept is stationary in y example.
That doesn't work... The turbo is what would be pumping air into the room. It's the variable. The room is the engine, it's the constant.
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What's that?? You'd like an eco-tune...
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