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Old 08-26-2012, 12:17 AM   #183
AaronCompNetSys
Scooby Specialist
 
Member#: 144848
Join Date: Mar 2007
Chapter/Region: MWSOC
Location: Cincinnati, Ohio
Vehicle:
05 WRX, 05 Saabaru
01 S2K, 91 Impulse RS

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Quote:
Originally Posted by CrashBandit View Post
I live in the mountains where elevation changes drastically, is it "better" for the tranny/turbo/drivetrain to shift into 4th and stay out of boost but be higher up in RPMs or keep it in 5th, gas pedal mashed, and boosting?
I posed this question to a tuner, and the best answer I got (as well as from the other local shops posting) is that staying in lower RPM with higher boost is more efficient. Friction losses and all.
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