Quote:
Originally Posted by Mike@N54Tuning.com
I believe the +31whp peak gain was dyno tested on 93 octane pump gas in 60 degree weather. Remember it's a details business and every little detail contributes to a positive result. If the temps are higher, or fans not as powerful, or elevation higher, the tune will reduce boost. If the octane is lower, the tune will reduce timing. If you don't have several adaption runs on each map, the boost and fuel curves will not be properly learned yet.
So getting +18whp on 93 octane in 60 degree weather on a well adapted car might be below expectations while where getting +18whp on 91 octane at higher elevation on a 80 degree day might be above expectations. It's all in the details.
Mike
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31whp was on 93, but was the boost at the default +3 psi or 4?