Quote:
Originally Posted by kismetcapitan
how far can the stock ECU go in terms of horsepower and boost? Can it map reliably so long as the stock AFMs are not exceeded?
I'm just very curious - I've never had a stock ECU, so I never got to see its limitations...
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There isn't a numerical limit of the ECU in terms of horsepower. The limiting factor as you have pointed out is the flow capacity of the standard AFMs. If the engine is consuming more air than the meters can sense then you have an issue.
Assuming you have a load senor (AFM) which can flow enough to produce your power goal and it has been adapted through whatever means to interface with the ECU, then the standard ECU could be remapped to support the power.
I imagine there maybe some issues along the way as all of the editors I've played with don't have options to change injector dead time and various other "advanced" options. Mapping the fuel and ignition tables would be relativity straight forward.
I believe the source code for several Honda factory Honda ECUs is well understood and various parties have released logging software, boost support and so on for the ECUs. Factory ECUs are powerful and reliable but their closed source nature cripples them.