At the risk of loosing potential respondents, this is for a motorcycle application. Kawasaki ZX14 bored/stroked with multiple stages of nitrous. Prior to a crash all worked as expected. I rebuilt with a Dominator to have one controller instead of multiple "black boxes". I have the bike running, while not fully tuned, it's currently 209 HP to the rear tire on C16.
I can't shake the feeling the ignition map is entirely wrong. Since the bike is drag race only, I don't really need timing that reflects cruising/fuel economy so I employed a "best guess" method and tried to tune from there. I've got a good idle, dyno runs at wide open show meaningful HP gains roll off around 38-40° BTDC. "Blending" the cells in between resulting in harsh stumbling and an occasional flame throwing backfire. As an experiment (and to my surprise), if I map everything (except idle) at 38° BTDC and fuel all corresponding cells to 13.0 AFR, it seems to run fine at all RPM, although I'm certain I'm washing the cylinders with excess fuel at anything other than max RPM.
So is the objective to acquire a stock ignition map and do a copy/paste? Can I map all cells at a given (what would it be?) timing value and fuel the mid-range leaner (15-16 AFR?) to simulate a stock cruising/fuel economy timing map?
Thoughts? Suggestions? If the objective is to use a stock ignition map, does anyone have access to one? I acquired a stock ZX10 timing map, but it made my bike pop/fart at every RPM. Your help will be greatly appreciated before I just cross my fingers and spray! Thanks.
I can't shake the feeling the ignition map is entirely wrong. Since the bike is drag race only, I don't really need timing that reflects cruising/fuel economy so I employed a "best guess" method and tried to tune from there. I've got a good idle, dyno runs at wide open show meaningful HP gains roll off around 38-40° BTDC. "Blending" the cells in between resulting in harsh stumbling and an occasional flame throwing backfire. As an experiment (and to my surprise), if I map everything (except idle) at 38° BTDC and fuel all corresponding cells to 13.0 AFR, it seems to run fine at all RPM, although I'm certain I'm washing the cylinders with excess fuel at anything other than max RPM.
So is the objective to acquire a stock ignition map and do a copy/paste? Can I map all cells at a given (what would it be?) timing value and fuel the mid-range leaner (15-16 AFR?) to simulate a stock cruising/fuel economy timing map?
Thoughts? Suggestions? If the objective is to use a stock ignition map, does anyone have access to one? I acquired a stock ZX10 timing map, but it made my bike pop/fart at every RPM. Your help will be greatly appreciated before I just cross my fingers and spray! Thanks.
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