does anyone know what size the stock JDM ZC injectors are? (In CC's)
or anywhere that i can find this out?

And would it be necessary to upgrade the injectors if i was to turbo the engine, running only about 6-7psi?

 

i ran stock injectors on my D series ZC running 7psi on a T25 with no problems. I upgraded the fuel pump for safety reasons.. but never had an issue with the injectors.