How is the new G56 ECU R1NGA? I notice you have it now according to the car register details. I assume it isn't locked and you can alter the settings? If that is the case you could alter the Wheel Speed Gear Factor numbers for the speedometer to correct the 8% over read, that Morgan seem to be unable to do. There is a procedure in the S&S manual. A small but annoying item I know and it will also knock 8% off your recorded mileage, legally.
Indeed, new ECU fitted and car drives beautifully again. It is indeed open and programmable, but I need Matt in Wales to do anything more to this I think, should I feel the need to add any further mods to my car (I am very tempted by the Roller Rockers and Stage-2 cams I must say...). First impressions during my brief drive home trying to avoid the rain are of an engine that is particularly smooth on small throttle, light load - possibly more so than before. Full throttle through the range is excellent and at least as strong in terms of pull as with the MMC unit and it is still delivering with gusto up to the limiter at 5,500rpm. Same limit as I had before - at least as far as my rev-counter displays - so all in all a good fix.
Of course there's no real difference over stock MMC version apart from having an ECU mapped specifically for my G56 Stage-1 kit, but that's as it should be and therefore all the better for it. If I do go to Matt for more mods (or even a mapping to uniquely match my particular engine), then it will be the icing on the cake. But for now I have an engine that breathes as it was designed and is managed by a 3D map that was manipulated to suit that easy-breathing setup. So not tuning, just optimising in my book!
Happy
