commanded a/f....

QWKSNKE · 09-26-2005, 12:26 PM

Curious to what the forced induction guys are setting theirs at the respective load value.

Dale McPeters · 09-26-2005, 12:59 PM

around 11.5 to 1 afr at high load/rpm (high boost)....around 13-14 afr at lower loads/rpm (low boost).......

QWKSNKE · 09-26-2005, 01:37 PM

I believe that is what mine is set at around 79% load. Just wanted to compare

Dale McPeters · 09-26-2005, 02:40 PM

Lee,

I did mine this way just to be safe and until I can get the motor broke in....
I do not think I will change it to much though as the engine seems to like it "A LOT"......

QWKSNKE · 09-26-2005, 02:42 PM

that's cool. I was just curious at what load values should I start richening the commanded a/f

Dale McPeters · 09-26-2005, 02:50 PM

Since your car will be more rpm based than what mine is I would datalog the rpm, load & boost and graph it to see how much boost you are running at certain load/rpms ...You will probably need to start about 50-60% load would be my best guess without actually looking at the car....

Mine is more load based so I have to start at about 2000 rpm and about 20-30% load......

Turbo's are just so cool............

09-26-2005, 12:26 PM	#1
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	commanded a/f.... Curious to what the forced induction guys are setting theirs at the respective load value.

09-26-2005, 12:59 PM	#2
Dale McPeters 5.0 Block/Walnut Cracker Join Date: May 2005 Location: Working.... Posts: 2,409	Re: commanded a/f.... around 11.5 to 1 afr at high load/rpm (high boost)....around 13-14 afr at lower loads/rpm (low boost).......

09-26-2005, 01:37 PM	#3
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Re: commanded a/f.... I believe that is what mine is set at around 79% load. Just wanted to compare __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy

09-26-2005, 02:40 PM	#4
Dale McPeters 5.0 Block/Walnut Cracker Join Date: May 2005 Location: Working.... Posts: 2,409	Re: commanded a/f.... Lee, I did mine this way just to be safe and until I can get the motor broke in.... I do not think I will change it to much though as the engine seems to like it "A LOT"......

09-26-2005, 02:42 PM	#5
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Re: commanded a/f.... that's cool. I was just curious at what load values should I start richening the commanded a/f __________________ 2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy

09-26-2005, 02:50 PM	#6
Dale McPeters 5.0 Block/Walnut Cracker Join Date: May 2005 Location: Working.... Posts: 2,409	Re: commanded a/f.... Since your car will be more rpm based than what mine is I would datalog the rpm, load & boost and graph it to see how much boost you are running at certain load/rpms ...You will probably need to start about 50-60% load would be my best guess without actually looking at the car.... Mine is more load based so I have to start at about 2000 rpm and about 20-30% load...... Turbo's are just so cool............ __________________ '14 Dodge Challenger SRT8 392 6-speed