Thread: 2007 Wrx Vf39
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Old 01-24-2009, 12:13 PM   #4
Scooby Newbie
Member#: 172332
Join Date: Feb 2008
Location: St Paul, MN
2006 WRX


21-22 PSI is fine in the midrange with the VF39, as long as it doesn't overboost on the highway. I'd be more concerned about the "boost bump" at peak torque there. Looks like your tune is overshooting boost targets and overcompensating.
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Bullwinkle1983 is offline   Reply With Quote