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So I had to knock out a bunch of other tunes before I could get back to testing.
We installed 5 psi springs in the wastages and as I predicted we ended up with 7.4 psi boost with the off road pipes.
ON E-50 and 7.4 PSI boost we made 670 RWHP 670 RWTQ, Remember this is an automatic car.
Pretty impressive the 7.4 psi on E-50 can almost Identically match 9.4 psi on 93 octane.
Graph below is an overlay of those 2 runs, Blue is HP, Red is TQ, Green is Boost.
The fuel system is right on the edge at .85 lambda I am working with the FPCM tuning and making some gains there to help but I feel this is the limit of this LT4 fuel system with the stock cam on E-50.
Open for discussion.
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