Hieronder wel een mooie uitleg waarom de betere tuinders er niet zo happig op zijn:
Voor meer info:
http://www.courtenaysport.co.uk/diesel-tuning/info_26.html" onclick="window.open(this.href);return false;
Diesel Tuning Boxes.........
So why don't we use boxes?
Put simply all a tuning box does is increase the fuel pressure to the engine, so completely different to a remap which changes many parameters within the ecu. Your car's ecu does not know if a box has been fitted or not.
Yes boxes do give good power and torque, which can be shown on a rolling road but by increasing the fuel pressure the ecu loses its safety margins, because the ecu does not know the fuel pressure has been increased.
A diesel engine which runs excessive fuel (due to an big increase in fuel pressure) will lead to higher cylinder head and exhaust gas temperatures, which can ultimately cause damage internally. The reason for this is because the ecu does not know the fuel pressure has been increased with the box, and it has no way of defending against the higher temperatures.
A remap on the other hand, because it is an integral part of the ecu, means that if due to outside factors (e.g. high ambient air temperature, towing) the cylinder head/exhaust gas temperatures do rise, it can reduce the fuelling to be able to combat them for safety. The safety margins are still available with an ecu remap; they aren't there with a tuning box.
Groet jraaf