Quote:
Originally Posted by rdkarthik  On cars with a carburettors whenever the volumetric efficiency of an engine changes (mods to intake,exhaust,head,etc), it is to an extent self adjusted. More the airflow through the venturi, more the fuel thats sucked in. |
I have a problem with this statement. Having worked with carburetted engines (actually,
only with carburetted engines), I can emphatically say that
this is not true!!!
Maybe you meant to emphasize "to an extent" more than I think you did, but fuel flow is most definitely NOT adjusted and compensated for automatically. The fuel flow is set by jets and emulsion tubes with fixed orifices which flow at their maximum capacity ALL the time, and therefore are physically incapable of delivering more fuel. You HAVE to re-jet everytime you do anything to improve vol. efficiency.