i think this was done with safc though. i honestly don't see how the plot can be so smooth.

are there any zeitronix owners that can post their plots? i'm just curious as to what other people can achieve that i can't... :P my curve has dips and humps that are hard for me to tune out especially since the value is in between adjustable rpm's (ex. wanna flatten 4300rpm but only have 4000 and 4500 to adjust and the AFR is, let's say 11 at 4000 and 4500 while 4300 its at 11.3)

 

you could always rescale your maps to fine tune certain areas.......it can be done.....

 

Hell yeah, even with methanol ramping up to 625ml/min. All except for one little dip at peak, but thats at 24psi


Problem is if the weather changes 2 degrees or barometer changes one bit, my A:F will change too.

See how it looks when you start a pull at a higher or lower RPM

 

fwiw, I have found my afr's to be a fair bit more stable once I installed a mbc and quit trying to control boost with the ecu. seems like the stock bcs with stock solenoid takes a lot of fine tuning to get really smooth. I'm too lazy.

Also, it is possible to rescale the maps to add some resolution at a particular rpm etc. I think it was Malibujack who wrote a very nice tutorial on rescaling the load colums. Its conceptually the same as what you want to do with rpm.

 

Kind of OT but let me piggy back off that:

I basically pulled up to 6 degrees timing, most at peak, but added 1 deg at redline. Of course the A:F respectively got richer, but after pulling the respective fuel I was dumping in for the unnessesary amount of timing, my A:F became linear, stable, less dipping, and even less spikes from added heat - the fuel I was using to allow timing and reduce temperature actually was the cause for it being needed.