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      09-06-2009, 05:12 PM   #47
jeffc31337
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Maybe I'm missing something but where is the data that shows they are raising boost targets as IAT's increase? THe logs I see earlier in this thread show a nice boost taper to redline with the actual boost right in line where it should be.

Has anyone actually seen any graphs of EGTs for the different tunes? IMO EGTs are the major cause for concern in terms of long term reliability followed closely by staying on the compressor map. There are lots of different ways to tune for the same power(more timing, leaner, more boost etc etc) but the safety of the tune is usually seen in the EGTs they are putting out and if it's in spec. IN the audi world APR GIAC, REVO and Unitronic all tune quite differently but in the end all make nearly the same gains and within the same safety margins.

Note that any car with a downpipe will lower EGTs as it is reducing friction post turbo so that should be kept in mind.
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