LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Went waaay lean on the dyno N/A

Old Apr 28, 2005 | 04:38 AM
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RedLT4Mike's Avatar
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From: Helotes/San Antonio
Went waaay lean on the dyno N/A

Yup, went way friggin lean and ping'd
It got worse as the RPM's went up at WOT.
I suspect the fuel pump is on it's way out, and cannot support
what should be in the area of 360hp or so.

I put down 300/300 with this problem.
We made one pull, and called it a day on that note.
I don't have a graph, but you could see the sharp decrease in the hp from KR.
I'm getting a new fuel pump this weekend, but anybody have any other advice
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