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The Terminator
Engine/Tuning
2.9 Losing boost...out of ideas - video inside
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<blockquote data-quote="Goose17" data-source="post: 16140391" data-attributes="member: 137255"><p>I am by no means a tuner and kinda just “thinking out loud here.” When you had the car on the dyno, did you data-log your throttle position as well as commanded air/fuel vs. actual air/fuel? If your fuel delivery is not quite up to snuff, your tune may be closing the throttle a bit as rpms increase if there is a mismatch between commanded air/fuel and actual air/fuel... the tune could be closing the throttle a bit to keep the engine from running super lean. I would expect boost to drop off if that was the case. Again, no tuner here... just taking a guess.</p></blockquote><p></p>
[QUOTE="Goose17, post: 16140391, member: 137255"] I am by no means a tuner and kinda just “thinking out loud here.” When you had the car on the dyno, did you data-log your throttle position as well as commanded air/fuel vs. actual air/fuel? If your fuel delivery is not quite up to snuff, your tune may be closing the throttle a bit as rpms increase if there is a mismatch between commanded air/fuel and actual air/fuel... the tune could be closing the throttle a bit to keep the engine from running super lean. I would expect boost to drop off if that was the case. Again, no tuner here... just taking a guess. [/QUOTE]
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Engine/Tuning
2.9 Losing boost...out of ideas - video inside
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