First of all, thank you for everyone who has been helping me with this project. I have a P600B with 6lb of boost on a bolt on LT1. I have my timing tables set up ok, I even have the computer hitting PE mode at 20% tps, and I have the PE air fuel ratio set to 11.0-11.7/1. What im still at a loss for is how to adjust part throtle afr. Eventually I would like to bump the PE mode TPS up to 30 or 40%, but what takes care of part throttle afr. Im just afraid of tipping into the throtle on the highway (M6 car) and pulling a little boost and having the computer trying for a 14.7:1 afr. Detonation would be bad, and I know that low rpms lend themselves well to detonation. Does this make sence? Any help would be appreciated. Thanks Eric L

 

Eric, why don't you see when your boost comes in first (rpms), then set the rpm fuel enrichment tables to the fuel ratio you want to see while you're in boost, and set your WOT fueling to come in at some throttle angle that you feel safe with. With a 6# boost, you're probably not making that much boost in the lower rpms anyway. It's nice if you can log boost and A/F mixture to accurately do this.

 

what are the fuel enrichment tables? This dosent sound familiar to me. Sorry, I forgot to ad that im tuning in OBD1. Thanks Eric L

 

Is the fuel enrichment table the same thing as power enrichment? If so..............than disregard the last post...................I have a reading comprehension problem, lol. I think I understand what your saying. Basically do the same thing im doing, only wait till I know when boost comes in, and let stock timing take care of anything below there. Thanks again, sorry for my retardation, lol. Eric L

 

There is no way to tune part throttle AFR in closed loop. The O2 sensors and long and short trims keep it at 14.7. If you have the WOT tuned correctly that is all you need to do. Since you will not see full boost at part throttle (<20 TPS) it is not necessary to fade the AFR in or out.

 

Thank you for dumbing it down for me, lol. I think ill be ready to pull the trigger this weekend on this project................oops...........bad choice of words. Thanks again everyone. Eric L