توربوشارژ 7.5psi در سطح دريا 1.5bar ميده
توربوشارژ 7.5psi تو تهران 0.86*1 + 0.5 = 1.36bar ميده
دليلش اينه وستيگيت مياد اختلاف فشار هوا رو با اينتيك ميسنجه و نه فشار مطلق رو و افت توربو تو ارتفاع از سوپرشارژ كمتره ولي صفر نيست.
براي جبران اين افت بايد از بوست كنترلر الكترونيكي استفاده كنيم و بر اساس فشار مطلق اونو تنظيم كنيم.
اينم اضافه كنم وستيگيت و بلو اف و گيج هاي محاسبه بوست برخلاف مپ سنسور كه فشار مطلق رو اندازه ميگيره ميان اختلاف فشار هواي محيط رو با فشار داخل اينتيك ميسنجند.
The wastegate diaphragm responds to gauge pressure (psig), not absolute pressure (psia). The wastegate spring pushes against the intake manifold pressure, but there is atmospheric pressure on the other side of the diaphragm. Since the atmospheric pressure is lower at 6000', it takes less manifold pressure to push the spring than it would at sea level. Therefore, even though the boost gauge reads 6 psi in the mountains, it is not the same as 6 psi at sea level. (Sorry, not trying to lecture a turbo kit manufacturer; in my opinion, your post makes it seem like one will automatically make the same power at 6000' as one would at sea level just because the boost gauge still reads 6 psi.)
So I don't see how the turbo can automatically compensate for the elevation unless you use a boost controller that has an absolute MAP sensor. A simple wastegate won't do it. If it did, your boost gauge should be reading something like 8-9 psi in the mountains (the boost gauge also reads gauge pressure, not absolute pressure).
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نویسنده: امیر علوی