Quote:
Originally Posted by Senna-F1
SOHO tightened my belt, even though at first they thought it was fine. Up until they tightened it, boost was still dropping up top, just a tad. So to those who are losing even a small amount of boost, might just need a tighter belt. Posting log data showing boost till redline. Boost gauge read 15.2 psi which is even a bit lower than the ECUTEK log data of 30.2 psi absolute pressure.
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Gauge pressure is different then absolute pressure. They will never read the same.
The simplest way to explain the difference between the two is that absolute pressure uses absolute zero as its zero point, while gauge pressure uses atmospheric pressure as its zero point. Due to varying atmospheric pressure, gauge pressure measurement is not precise, while absolute pressure is always definite