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Originally Posted by F.I.A.T
compressor maps are a good baseline to start with but altering the motors charateristics will affect your formula. not to mention if we still went solely by compressor maps instead of real world experience we would never be runnning anything larger than a T3 turbo and no where near the GT42R that we run now.
The maps for the Precision turbos are not going to be found. They do their own R&D outside of Garrett and now make some of their own wheels. so simply relying on the garrett mmaps would not be correct in any of your calculations. esspecially since they dont use standard garrett turbine wheels which alter spool and output of each turbo.
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When did you guys install the GT42R? Sounds like you are planning to push more than the 680hp the GT35R can handle.