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Originally Posted by steve
Question on EGT probe placement:
I've seen them installed in the exh manifold, and I've seen them installed in the down pipe after the turbo. I've got Autometer gauges, and the instructions say to install in the downpipe. Comments anyone?
Thanks.
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I don't know if popular opinion has changed any, but most people say to install it in the header 3 or 4 inches down stream from the block in the #3 cylinder runner. #3 tends to be the one that runs hottest (at least on WRXs).
On problem with the AutoMeter gauges is that some of the models won't read high enough for our turbo cars. 1600def F is the max on some of those gauges, and that's only a soft upper limit for a probe placed in the headers as described above.
Do some searches on NASIOC and I-Club for more up to date info... I'm just repeating the info I learned when I installed my probe 2+ years ago.