Post by
evildky »
https://forums.nicoclub.com/evildky-u13100.html
Thu May 20, 2010 7:32 am
"upgrade"? if they wrok then they aren't an upgrade, either they are the same flow rate and they work or they are too big or too small, I would assume the twin cam is either they same or larger without looking ti up, most likley the same, and if you run larger injectors you'll need a remapped ecu, ecu hack piggy back stand alone etc or you'll make the engine run worse!
generally speaking most bolt on power mods make power by adding air and tricking the ecu into not noticing, stock ecu's are very conservetively tuned erring ont he side fo rich, as rich is safer than lean, also stock injectros are gerally oversized to allow for low duty cycles to help ensure a logn life for the injectors but unless you are adding forced induction you won't be needing any mroe fuel