I havent been on in awhile and car is in storage.--But in my tune this past summer,, i fought and fought to get fuel to my 82 crossfire with 355 eng. and the only thing i could do to get A.F.R. down from 19.0 to 14.7 cruise, was to go into bin and raise the 02 LEAN,,RICH AND MEAN thres,, up real high. - but not sure if this is ok, or is it a sign i need bigger injectors with my eng combos.--- im a 355,, automatic ,,using tuner pro and 7747 ecm with prominator.--- any more info needed just ask, thanks --- ps i run stock injectors at 20 psi fuel and have BPW set to 107.00.

 

Carls...stock injectors being what flow rate? 19#/hr, 22#/hr ?
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Another thought as well, (forgive my ignorance because I'm using a 749 ecm & $59 code), does your code / mask use a VE table? IF so, what adjustments if any have you made there?

 

stock 350 TBI inj's at 20 psi?

 

Sounds like same as your issue 91chev.

 

don't say that. I don't wish that on anyone lol

hey man, do what you gotta do to get thing running in the 14's (AFR). you're light years ahead of me since you've adjusted the INT millivolt stuff.

It's not a sign of lacking injector, just adjustment of the NB O2's values. I definitely do not need bigger injectors but I needed to completely rebuild my integrator's values


I'm not saying they were off, just that only God knows what 's happening in my friggin engine, so I've needed to adjust to meet normal expectations

 

my bin does have a VE table,, and i come up with using 61 LBS as my inj spec.---Im running 20 psi fuel as i thought i might go lean at high load/rpm with stock injectors.,,,,WITH MY ENGINE SET UP.,, and yes ive been adjusting my VE TABLE after i raised my 02 settings.-------So it sounds like i should leave it alone [inj] vsince i can get it down near 14.8 AFR ???

 

Your BPW sounds like its too high for 61# injectors set at 20psi. Haven't done the calc, just gut feel.

 

yea,, i think it came to 104, with calculatror.-- If i remember right. [at work cant check]---but i was terrible lean so i moved it to 107.0 -- will check later to see.--- BUT so i should not go bigger injectors then ?? just leave 02 lean,,mean,,rich,, set higher in bin,