Use EQR for everything, including wideband... the reason is you don't really know the alcohol content of your fuel (the stoich AFR varies), so you will be safer using EQR or Lambda (which is 1/EQR)...
but when using Lambda, pay careful attention to not confuse Lambda and EQR.
I hear you. My concern is the guys that are willing to help me most say use aft. I would love to learn to do this tune the "right" way. That's why I swapped to a 02 os and a 2 bar tune. I need to check my 2 bar map and make sure its reading correctly. I scanned the old one at 14.8 and plugged the 2 bar one in and with the scaled on 190 the new one read 14.8 too. But when the turbo starts getting ready to build any boost it goes Sooo rich. Thanks for helping guys...
00 GMC,LQ4, Jarrett Faggart pistons, callies rods, Ebay studs, LS9 gaskets, 317's, KBRacing KIT, PT76/75, treadstone intercooler,Eboost2, dual walbro, FIC 75lb, br7ef, Trutrac, Shaftmasters Shaft, 3.5" DP w/4" magnaflow dumped, turbo blanket, Circle D 3200, Jake's built 4l80w/brake, hydroboost, EFILive v2,Lunati dual springs,222/226 cam, cal-tracs, QA1 front shocks, Street/strip Bogarts,Drum swap, Alky-control,MSD8733 936 HP to the tire DD.
Look at your B3601 and make yourself a cheatsheet of "important" AFR's on a postit note or a 3x5 card:
e.g.
AFR 14.7 = EQR 1.000
AFR 13.2 = EQR 1.114
AFR 12.8 = EQR 1.148
AFR 12.6 = EQR 1.167
. . .
What injectors are you running ?
what fuel pressure ?
is fuel reg boost referenced ?
how much boost do you intend to run ?
Back yard boost
347+ T76 = 770 rwhp10.96 @ 135 mph
75 lb injectors at 58 psiOriginally Posted by johnv
Stock pressure with regulator and return stock
Running 9 lbs on a stock cam.
Going to run a 222/226 599/598 115 cam and a few more psi when I get this tuning under control.
I found my BIG tuning issue. Was sold a map sensor that was supposed to be 2bar. It was NOT! Running much better now with a GM 2 bar map installed.
00 GMC,LQ4, Jarrett Faggart pistons, callies rods, Ebay studs, LS9 gaskets, 317's, KBRacing KIT, PT76/75, treadstone intercooler,Eboost2, dual walbro, FIC 75lb, br7ef, Trutrac, Shaftmasters Shaft, 3.5" DP w/4" magnaflow dumped, turbo blanket, Circle D 3200, Jake's built 4l80w/brake, hydroboost, EFILive v2,Lunati dual springs,222/226 cam, cal-tracs, QA1 front shocks, Street/strip Bogarts,Drum swap, Alky-control,MSD8733 936 HP to the tire DD.
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