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Originally Posted by Dean
That is why it is in the header on Cylinder 3 and not in the up-pipe. As I understand #3 is the one that is most likely to run lean.
I'm still researching before doing any tuning, and as with everything, there are disputes over max EGTs, but everyone's sensor is in different places.... I think A/F is more important overall, EGT on 3 is a backup watch point, most likely if I get near 100% injector duty which is unlikely on the stock turbo in it's efficiency range.
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100% correct. most temps taken @ cyl 3 are 1400-1450 MAX 1500 and you want to worry.
most people see around 1200 in the uppipe which would mean at least 100-200 degrees cooler after the turbo.
that would support the 1000 temp range in the downpipe.