I bought some 310cc injectors for my b16a turbo and I was reading the stickys and found this:
310cc 200~220whp
370cc 220~280whp
440cc 280~330whp
550cc 330whp~380whp
660cc 380whp~425whp
720cc 425whp~475whp
880cc 475whp~525whp
980cc 525whp~600whp

now the quiestion is: must use a tuned ecu to get that power? thanks!!!!

 

yes u need to be using some kind of fuel management system

 

of course you have to use some sort of engine management or with those larger injectors your car probably wont even start let alone run correctly