C14NZ C16NZ C18NZ what's different with the injector??

[Trinidadcorsa]

I wanted to know if it's one universal injector unit that works in the C14NZ C16NZ & C18NZ, to my understanding the throttle bodies are a little different in each but the injector is the same??? is this true? will it make any difference in HP if I use a C18NZ injector in my C16NZ? I understand it fits with no problem and they are all the exact same size.

[Adam]

The injector is different. Bigger size
You need more air entering the engine, to inject more fuel.

Fitting a bigger injector will just overfuel the engine if the same amount of air is entering it.......

[Trinidadcorsa]

thanks Adam, so all the injectors can fit, but it would be best to go back with the same C16NZ. Do you know where I could get a new one for a good price?

[Adam]

Yes they all are interchangeable but are a different size.

Dont think you could buy them new to be honest....

You see plenty in scrap yards round here, but im not sure whats available to you......

[Trinidadcorsa]

very difficult to get here, there are a handful of Vauxhall & Opel owners on the island, and no dealer.....