ByteVenom

I have an 05 running an MS3Pro-PnP with 130k miles on it. I/H/E have all been done.

I got a set of Flowforce 380s from a friend a while ago, and they’ve just been sitting around.

During WOT pulls I’m seeing maybe 60% duty cycle on stock injectors.

Is there any benefit of swapping in the FFs?
Future proofing for eventual turbo?

Reading why people recommend the EV14s it seems mostly Bc of their ability to idle and spray pattern. That’ll net me smoother idle, and maybe negligible power somewhere?

I guess I’m asking if the benefits outweigh the risk of tearing into something that works.

curly

iTrader: (25)

You can play around with RC's injector calculator here: https://www.rcfuelinjection.com/Technical

Your answer depends on if you'll go turbo, but your stock 265cc injectors are good for almost anything you can naturally aspiratedly throw at them.

Whats your AFR when you're seeing this 60%?

ByteVenom

12.2:1 at 6100 RPM.
My AFR target for that is 13:1.
Using that calculator, I would be maxing out the injectors (@ 80%) at 160 crank horsepower. Does it seem realistic that I'd be reaching near that with my current set up?

curly

iTrader: (25)

According to RC's calculator you're closer to 180-190 with your 265cc NB2 purple injectors at 60psi fuel pressure, but yeah, 160-190. If you plan on making more, you need more than the 380s IMO, and if you don't plan on making more, I don't think you need them, they won't net any more power. Moving from 12.2 to 13.0 will most likely net more.