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#55: 12-02-2011, 12:06 PM
ClimberD@HexMods's Avatar
Title: 5EAT 101
Location: Dallas, TX
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Assume for a moment that every intercooling or non-intercooling charge system has a certain amount of a) internal volume including pipes and core or just pipes, b) a certain pressure drop given a certain turbo output pressure, temperature and airflow, further complicated by the velocity of the air in the system, and c) a certain cooling result given b).
In simple terms, the game doesn't change when getting rid of an intercooler. It is the same question as what happens when you use a little intercooler vs a big intercooler, but to a different degree. Or in some instances, a "normal" size intercooler vs a BIG intercooler, in which case you will see a greater polarization the other way.

So the more intercooling and pipe you have:
pressure drop increases
cooling efficiency increases
perceived throttle response increases

Was cool to see his testing, since the lack of cooling efficiency far outweighed any gains in maintained pressure from turbo outlet to intake manifold, as well as perceived throttle response, indicating (subjectively) that the relationship between the variables is far from linear.

Would be cool to see someone crunch PV=nRT to see whether the increase in non-intercooled pressure was due to the hotter air charge, or if in fact some considerable amuont of pressure is lost through the stock intercooler.

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Last edited by ClimberD@HexMods; 12-02-2011 at 12:10 PM..