Just a quick question? Im running 61lbs injectors at 21psi and have hit 98/99 Ve in my tables at about 1600 to 2200 rpm. Bpw should be about 113 or so for this pressure but i have had to raise the bpw to 120 to keep my Ve's under 100%. Is this normal. My higher rpm ve's are pretty good with some room to move about 25% depending on rpm and load. Just wondering if anyone thinks that i should upgrade to bigblock injectors?? Or will this be fine?? Thanks for the helpSorry that is at about 70to90 map incase this helps!!

 

How much head room is there regarding duty cycle? If no problem there then increase the BPC a couple of points. Otherwise increase the fuel pressure a couple of psi and keep the same BPC.

Was wondering, which intake manifold are you using?

RBob.

 

Trying to understand and learn something.. 61lbs injectors at 21psi.. I know this can be done but wouldn't it actually be more effective to get smaller injectors to keep your FP to actually around 43 LBS. Not that it would make a difference. I can understand someone doing this if they were planning for a major engine build in the future. ?

 

Im not sure on how much dc I have as Im using Winaldl to datalog and not sure where to look for a dc reading?? Does Winaldl give a dc readout?? As for upping the fuel pressure that is the max that i can get right now with my current regulator set up. I may need to get the Gm 30psi regulator soon. But can someone tell me how to find out what my dutycycle is at while driving and using winaldl?/ THanks again guys. P.S this is a tbi injection not mpfi!!
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Im using an Rpm Air-gap currently and have seem to got it tuned pretty well so far!!