Hello, I have yet another fuel system ?! - I just talked to Henry at motorsport dynamics in Sacramento, Ca (the shop that will most likely be doing my tuning) - He states that the largest injectors you can run with a pfc are 1600. When i purchased my secondary fuel rail from kgrails.com i ordered my injectors from him as well.... they are 1680 cc's.... Did i make a big mistake, or is someone blowing smoke?



Thanks a bunch!





~Sirrelix

man those are big injectors

Most people refer to the 1680cc injectors as 1600cc injectors. The PFC can control them. However you need the datalogit hardware/software to change it properly.

Interesting... So there should be little to no difference when tuning 1680 cc or 1600 cc injectors? Thanks a bunch!





~Sirrelix

agree with Jspec. i know several people running 1680's using a PFC.

I'm running 1680s and entered the injector size into the datalogit/pfc as 1680. You need to run resistors with the injectors. I recommend 5ohm/5watt resistors. You can purchase the resistors from Mouser electronics.

The reason they told you that is because the PFC only recognizes up to 1600cc. I think the extra 80cc they are able to pump is negligible.