Okay so here you go, im illustrating what you have to do with the two different style injectors.
First, this is the MSD style, i go believe RC is this style too..
Second, this is the Mototronic/Siemens injector style...
Lets start with the Mototronic/Siemens style first. There is no modifications necessary to use this injector style. Because of the new oring style that nissan has, you have to run two orings. The standard round one that goes on the injector itself, and the new nissan style in the manifold.
Two different orings, the square one is the Nissan one, the round one should have come with your injector.
Nissan one in the manifold.
Injector seated. Done deal. Ill include four of the the new nissan style orings for this injector.
If your running the MSD/RC style injector, you have to modify the pintle a little bit for this to work properly.
Basically what you do is grind/file/sand the pintle down so that it will fit INSIDE the new oring with a little bit of play.
From there your gonna run TWO of the new Nissan style orings on this end of the injector. Reason being, if you dont modify the end of the injector it will push the lower oring into the spray pattern area, not that it will do much, but better to have no obsctuctions in your fuel path. Here is what i mean.
Modified pintle.
Unmodfified, you can see the oring squishing into the spray pattern area. Ill include 8 of these new orings with the rail for you MSD/RC style injector guys
