Quote:
|
I agree, why don't you get your density contribution post IC instead of pre-turbo, the convention?
|
There are two reasons!
1.) In the first case when I started experimenting with this, I was trying to maximize the performance of a stock undersized turbo just to see what was possible. The
only way to increase mass flow in a system in choke flow, is to increase the upstream density. It will still be choked to the local sonic air speed at the critical flow point, but with the increase in density, mass flow will still go up slightly.
2.) Due to my living at 5800+ ft altitude (and can easily reach over 12,000 ft altitude in an hour or so of driving) every turbo that is currently on the market is working far outside its design compressor map at these altitudes. At max boost, I am not on the far right side of the compressor map, I am completely off the page to the right. The intake cooling and wet compression pushes my operating point back toward the left.
Larry