Quote:
Originally posted by FormulaNERD@Mar 14 2005, 02:33 AM
but why do 1.2 bar ecu programs for vw's boost at 17-18 psi? wouldnt it be a higher "bar" than that?
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when you're talkin about turbos running "1 bar" or "1.2 bar" of pressure, it reffers to how much boost it produces beyond the level of 14.7 psi atmospheric pressure. i dont know specifically about the vw engine, but i'm guessing the 1.2 bar program you mention sets the turbo to run at 1.2 bar.....which, coincidentally, is 17.64 psi of boost, right there in your 17-18psi range. so that engine probably uses a 3 bar map sensor, or something close to it, which measures up to 44.1 psi...14.7 atmospheric and up to 29.4 psi of boost :thumbsup: