Installing Racetronix 32# injectors as I speak and have a couple of questions. Do you use the stock retaining clips on these injectors? the reason I asked is because when I push the injector as far into the rail as it can go it passes up the "groove" in the injector that the retaining clip snaps into. It seems the "neck" of the Racetronix injectors is a little bit shorter in comparison to my stockers. I have to pull the injector back out a bit in order to get the clip into the groove. It works but I just want to make sure I won't get any vacum leaks and that the o-ring is properly sealed by doing this. My second question is an easier one. The Dielectric grease that came with the injectors. I assume that is to put on the metal tips on the electrical connectors???

 

You're correct about having to pull the injector back out a bit to be able to install the retaining clip. That'd be my only guess for the dielectric grease as well.

 

The injectors can be pulled back slightly to fit the clips. They do not have to be bottomed out.

The grease will help the injectors go in the intake & fuel rails if you put a small amount on the o-rings as well. If they are dry, you can pinch an o-ring & cause a leak or even roll the o-ring off the injector while inserting it.

 

My bosch 42#'ers were the same way. Had to pull them 1/2 way out of the rail to get the retaining clips to fit. You will notice though, that they have to be pulled part way out for them to seat completely into the intake manifold with the rail bottomed out on the intake. If you have them pushed all the way into the rail w/o the clips and try to install them, you will see that the o-rings on the bottom of the injectors don't insert fully into the intake injector bungs.

 

Is the distance from the groove to the tip the same distance as on the stock injector? If it is shorter, will the spray pattern be effected?

 

I don't think the distance changes to the tip of the injector. The tips of the injectors that I am using were a little different in design and a little longer because of that, but the overall length was very close and the length from the top o-ring in the rail to the bottom o-ring in the intake was the same.

 

I just used regular motor oil to lube the o-rings....the dielectric grease through me....I was told I needed to have my PCM reprogrammed for the 32# injectors but after I installed them I started the car and it fired right up and idled fine....I reved it up and it sounded normal. I'm sending my PCM off anyway to be safe but I honestly didn't feel any difference....