Quote:
Originally Posted by GTO  Thanks for the comments, RD. I think the experts have included it in stage three as its best to attack the ECU at the very last stage? What if you get significant modifications after fitting a stand-alone? Wouldnt that mean a double cost as the stand-alone would have to be changed / tuned again?
Or is it possible to get a scaleable stand-alone? |
Most standalones are fully programmable sytems. Some standalones are scaleable with respect to secondary features like launch, boost and nos control, etc.
Considering all the mods, an ECU with scaleable features is not a must..
It is the the mapping that has to be changed to optimize the system for whatever mods are coming in.
An example-
Changing fuel and ignition maps for a stock car wil give it performance gains no doubt.
Next I install a free flowing airfilter and an exhaust system , so i re-calibrated fuel and ignition to compensate for a little more airflow due to filter and change in cylinder filling due to exhaust headers.So i optmize for these addons
Next i install a wilder camshaft, so i re-calibrate maps for different operating characteristics ( engine volumetric efficiency ).
Now i go for a turbo. i would have to upgrade to a vacuum/boost sensor (if the existing ECU did not have it) and then back to calibrating maps.
So whatever the mods on the engine or its systems, an engine management system should be set to take these parameters into account to extract the best from them.