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another update. Car is almost done. map is not complete yet, at moment it's set at 21degree advance but it is "only" giving 520hp at wheels... everyone (me included) is expecting something around 550 given how extreme the cam is.
Tuner was not 100% confident this can be achieved with tune given current result. My suspicions are on the heads. The MAST Factory might not be fluxing that good.
anyway... we will see, before end of week I should have the final verdict. I don't care about HP, I just want to fix that valve problem with heads.
There was a problem with pushrods being too "thick" for the head, which was restricting oil flow into the head. That was a scary moment, now solved.
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2015 Red Z/28.
Seattle area
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