Transient Fuel Help Needed 2006 Twin Turbo Mustang

[sajecw]

HI All,

2006 Mustang GT stroked 4.6 to 5.0, twin turbo.

I am having an issue with very rich hard accel-tip-in. This car previously had a PD blower, now it is a twin turbo. Being that the turbos come on later than the supercharger, I am guessing I am seeing this issue now.

On rpms lower than 4k, the car with go 10.5AFR, stumble and recover. MAF adjustments do not fix this issue.

Can someone take a look at the transient fueling and maybe explain why the constant values were so high on the last tune?

Also, does a lower manifold volume value richen or lean out tip-in?

I prefer to get some insight before playing around with this.

Thanks!
Attachment 65016

[15PSI]

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[curt@injected]

lower manifold volume richens tip in

[GHuggins]

lower manifold volume richens tip in

Since when or did I miss something that's recently been changed with Ford tuning? I've always increased manifold volume to richen tip-in fueling...