watkins wrote:I know exactly what turbos do. The point is that my internals can handle a turbo putting out the airflow equal to 30psi, as well as around 400hp. I said nothing about my turbo being able to push out that much air.
no you missed the point.
your internals are capable of holding 400hp. 400hp is not gonna be achieved with 30psi, it doesnt work that way. its convenient to say X psi boost for Y hp and tahts why people do it, because its convenient and easy to understand, but it couldnt be farther from the truth.
30 psi on something small like a 16G obviously wouldnt work because it would be way overspinning to move that much air. 30 psi on a GT35 would move X amount of air. 30 psi on something big like a GT42 would move a lot more than X amount of air.
boost pressure is much more of a factor of your engine setup and your power goals than the actual turbocharger itself. if you have an engine that flows very well (ported heads, ported or aftermarket intake, agressive cams, freeflowing exhaust), youll be able to get a lot more air into the engine, thus make a lot more power, and you wont have a lot of resistance to the flow, so you wont have a lot of boost while still making a lot of power. or you could have restrictive stock everything and it would barely flow air, so youd have a lot of resistance to the flow, thus a lot of pressure.
but if your car seriously needs 30 psi of boost to make 400 horse, drive it off a cliff. you should be well into 400 horse range with 15 pounds. and just right there is did what everyone always does, i used boost in a relation to horsepower because it is convenient to do so, but its not true. you dont have to have 15psi to make 400 horse, shit, you could be making 400 at 10psi if your engine is flowing a lot of air.
ok im done im starting to confuse myself. stupid fluid dynamics