View Full Version : Mustang 4.6L Injectors on Northstars?

Old Skool Soldier
07-04-10, 01:49 PM
Hey all, OSS here;

I can't find the thread for the life of me, but I recall reading about someone using the Mustang GT 4.6L injectors on our northstars. Apparently they are alot higher pressure injectors then teh N*. Has anyone ever tried this, or heard of this?


07-04-10, 02:44 PM
Couple of years back, either in here or up in Seville.

If you don't raise the fuel rail pressure by modifying the regulator and fuel pump, what difference does it make ?

Normal running fuel pressures in a Northstar are on the order of 41-47 psi and unless you raise the delivered fuel pressure (and change the injector timing and pulse width to compensate) the injector, in and of itself, will not change "pressure". The different injector may flow more or less fuel, but it can't change fuel pressure.