Hondata calibrations
Very quick message to the Hondata users.
Have you been using the stock maps, or have you done some tuning?
The reason I ask, is that I've finally got around to datalogging the map, including measuring the AFR. I'm wishing I'd done it ages ago, as my car was running quite surprisingly lean, especially on the high lift cam.
I've been out this evening and done a reasonably extensive amount of logging and map correction. The bottom line is that for a given manifold pressure on the high lift cam I've had to add approximately 10% more fuel. I've also ironed out numerous seemingly surprious lumps in the calibration that served no apparent benefit.
My engine seems significantly more eager now it's got a good shot of fuel going into it at all loads and revs, and I'd suggest it's worth others doing something similar.
For reference I'm running a short ram intake (maybe 18" of tube from the throttle body), and a 4-2-1 manifold (home bodge), which going on the fuelling suggest my engine is achieving better breathing than stock, by my simple logic. I'm running 95 RON fuel, so the ignition timing isn't being cranked up massively.
If anyone wants my work-in-progress calibration file to put on their car, drop me a PM.
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