E40 setting EQR (AFR) based on MAP

[ACCLR8N]

Anyone care to share a method to control EQ Ratio based on MAP? Flat lining the P.E. Commanded Fuel and fudging the boost VE table comes to mind as the car will be in OL probably. I would like to adjust my AFR to 12.5 through 3psi of boost and then ramp it to 11.5 by 7psi. The boost levels are not consistent with a specific RPM to do it with B3618.

2005 GTO LS2 (turbocharged) COS

[krisr]

I've not done a boosted motor yet so take what I say with a grain of salt, but looking at an N/A E40 tune I did a while ago, you could use B0148 to command/ramp up your EQR up to 100kpa (I found this worked great), then set B0157 to turn on PE after 100kpa? If you could work out what RPM's you're hitting 7psi with your boost controller/gate spring, you could start B3618 at around 1.17EQR and ramp up to 1.27EQR once you know the rpm you crack 7psi?

[ACCLR8N]

Thanks for the response. With the turbo on the street the RPMs vary about a 1000 RPM. Throttle position, weather, uphill, A/C on, gear. I am not using B0148 presently. Changing its scale to boost or even up to 115 kPa would do what I am looking for. The RPM based B3618 leaves me fueling for "safe" at best case boost.