Hi, Clearly much work been completed by all.. With regard to your issue1, does this characteristic remain, or has this fix improved it .
Hi as I said IMHO
"Testing Results
1. From day one of the new ECU the Rev hang and points 2 to 4 were gone. "
You can drive the car normally now without having to think about whether the revs have dropped before selecting the next gear. If you go up to the 6k rpm area then revs drop but not as immediately, but is as I would expect on a powerful raod car. This will be a characteristic of the engine design in conjunction with a heavy dual mass flywheel that has high inertia. The solution is to replace with a lightened solid one, but then this will have two effects, the engine will Rev differently, with a pronounced on/off throttle feel, much like a race car, not what I would want for a road car. The gearbox will take more of a bashing, as the rubber flex in the dual mass taking up judder will no longer be there, so the gearbox will probably not last as long, maybe acceptable in a race car, but not for me.
In answer to the next post. With respect to the popping banging, it is still present but to a lesser extent I think, it can be induced by feathering the throttle on coasting and then releasing. Same on my Plus 8. I have a sports exhaust so is highlighted. Personally I think this happens on most powerful engines that are highly tuned, mainly due to quick throttle change and excess unburnt fuel being sent down the pipes. I was told that Ford actually said that the holding of revs was to burn it off and meet emmisons. I consider this rubbish and a smoke screen, modern ECUs can switch of injectors in milliseconds and spark, there will always be some unburnt fuel being dumped. I doubt if you would ever totally stop the popping, you could muffle it with a made to measure silencer, but then performance will be impacted, but if you just want to cruise it probably does not matter. I quite like it (the hooligan in me)
Adrian
Buggered Off, to a modern none leaky car, heart's still ticking
