[EclipseGST]

Why are you in the negative on the AFC??? -20% is about where you would be with 550cc injectors. You have to be running really lean considering the mods you have. If you still have the stock injectors, why mess with the AFC at all? Have you logged any of this? I'm curious to see what your timing curve is since -20% is way lean for 450cc injectors so your probably knocking a bit. The stock ECU can handle the 450's just fine and you will actually see more of a gain leaving the AFC at 0 instead of -20% without using a logger of some sort for fine tuning. My suggestion is get a logger and find out what it is really doing instead of just guessing. I know your not running a lot of boost but the engine needs all the fuel it can get and by going into the negatives on the AFC you are just taking fuel away.

I dont know if (Tpunx) you're understanding what I am trying to get at so will someone else please comment on this. Either that or someone with good experiance tell me to STFU and explain where I am wrong. I just dont want to have him mess up a motor or head gasket even. Which can both be blamed on a bad tune job.