Quote:
Originally posted by AaronM
Remember that the guage is absolute pressure, not boost pressure, so if the guage in the dash is at the "1" marking, then there's zero boost, that's atmospheric pressure.
Typically a chipped car will run around 15 PSI, which would be right about at the "2" bar mark on the guage (atmospheric pressure, which is 1 bar, plus one bar of boost equals 2 bar of absolute pressure).
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not exactly. at my altitude, the atmospheric pressure is about .8 bar. therefore, at 1 BAR, i have some boost, over atmospheric. PLUS, NA engines will be running at vacuum, in terms of intake manifold pressure. therefore, any positive pressure in the intake is boost.