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Maybe I missed it, but do you have a way to log fuel pressure? The fuel trim going lean on the track while being fine on the dyno might be either fuel slosh starving the pump, or maybe the added load of actually pushing the car down the track is overwhelming the fuel system's ability to feed the motor/nitrous demand.
Edit: Was just browsing through your videos, and saw the video with the fuel pressure gauge during a nitrous pull and noticed that the fuel pressure doesn't stay consistent. The initial drop is when the nitrous activated, I'm assuming, but the fuel pressure doesn't stay steady - it's pulses during the short pull. I'd say you might have a fuel delivery problem; if it has a hard time staying steady during a short dyno pull it might be starving out during a much longer WOT-at-the-track run.
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1998 Z-28 - SLP lid - Ported TB - LS6 Intake - Dynatech SS headers/Catted Y - Magnaflow Exh - 3.42 - Yank SS3600 - UMI weld-in subframe connectors, Adj LCA, Adj PHB, Q1A TA - Bolt-in Relocation Brackets - Strano springs - Koni shocks - 17" C6Z06 wheels - 326HP/335ft-lbs - 12.35 @ 110.41
Quote:
Originally Posted by Blackbirdws6
I can appreciate a dream but this person needed some real friends.
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Last edited by The_Bishop; 10-26-2023 at 07:29 AM.
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