As I run Motec in both my Discovery's I can assure you that they do allow a number of advantages with regards to fuel and ignition mapping, along with ignition control. By 'piggyback' I mean that the Motec takes over the major role of the OEM ECU, but does not control auxillary sensors such as ABS, SRS etc, although I have done away with the air flow sensor, as this is controlled by Motec also. Some of the other advantages of installing Motec is that with a laptop you can access and change characteristics in engine setup, tuning diagnostics, utilities etc, which I found to be an enormously useful and essential tool when fitted to my supercharged disco. When I put together my other discovery (91) with a 4.6, I originally decided to do it cheaper and fitted a Perfect Power engine management computer, well you know what they say "You only get what you pay for" so, as it had limitations, it had to go, and, I fitted a Motec to that also (no more hassles). To cut a long story short, one of my friends fitted a 4.6 to his 91 discovery, had a chip upgrade, and no end of trouble. By the time he managed to get it right, with lots of frustration and money, he wished he had done it the right way from the beginning.
BTW, you are correct that outside the US the securities and lockouts are not used.
__________________
No hand signals, driver playing with his transfer Knob.
|
