Quote:
Originally Posted by Zeitgeist
Unless I missed it and somebody already mentioned this; the limiting factor for either the OM617 ir OM60X engines is the 5.5mm plunger and barrel sets (elements) in the pumps, not the amount of air entering the engines (turbo). The stock turbo already produces an overabundance of air for the stock pump. You could theoretically alter the torque curve a bit lower by adding a variable vane turbo, in an effort to improve 0-60mph times, but your peak hp/torque figures aren't going to be altered by upgrading the turbo alone.
More fuel => More Powah
More fuel & More Air => Even More Powah
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More air => more power 2.
read the blue text
http://courses.washington.edu/me341/oct22v2.htm
Changing the turbo can get you an increase and its not just because of the increase in air. A more efficient compressor wheel and/or turbine will create less back pressure. Although a diesel is far less sensitive to back pressure than an Otto cycle engine, back pressure still robs some power from the engines output.
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green 85 300SD 200K miles "Das Schlepper Frog" With a OM603 TBO360 turbo ( To be intercooled someday
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Kalifornistani emissons
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white 79 300SD 200K'ish miles "Farfegnugen" (RIP - cracked crank)
desert storm primer 63 T-bird "The Undead" (long term hibernation)
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