Hi,
I need to add 2 extra injectors for extra fuel and I'm wondering if it would work to add them in the primary runners or would it be best to add them in the secondarys?
I'm no super expert but aren't the secondary ports open longer and have more time to suck in fuel then the primarys or is it no big deal where I add the extra injectors?

I was thinking about to drill my secondary FFE rail and somehow add bungs in the rail and the lower intake and it would be easiest to add them into the primary runners.
Then I will have 2x ID1050x + ID1700x in the primary runners and 2x ID1700x secondary.
The 4x ID1700x will all be secondary stage injectors.
Do you think that would work?

I ask because I don't want to add the extra injectors on the "outside" of the intake, I want them to be hidden.

I need enough fuel and extra headroom for a BW8374 turbo up to 550whp on E50 with water injection.

 

this used to be really common back in the day when you couldn't buy larger injectors, its still done in Japan, because you can use Revolution Online Catalog / ???????????? and pull it off every two years to do the inspection