89fbrestor

hope i'm not asking a question that has been asked before but i'm not finding an answer doing a search.

i'm curious if i can use my stock 5.3 injector for my build?

the build is twin turbo and i'm hoping to be in the 800hp range.

do i need to upgrade?

my thoughts were(if the injectors will work) was just get an ls6 intake and reuse the injectors that came with the motor to save a few bucks. i'm not trying to do this on a tight budget buuutttt i also want to be practical with my $. if i dont need to spend $350 for new injector then i wont.

thanks guys

five7kid

iTrader: (14)

Do you have 3 sets of 5.3 injectors? Three per cylinder would be enough for 800 HP.

https://www.thirdgen.org/forums/ltx-...culations.html

89fbrestor

ok so no lol thanks five7.

i'm reading your post and i went to that link. it says 86.33 lbs for 850 crank hp.. so(i know i sound like an idiot here but) i do a search for 86lbs injector and i should be fine?

i'll say it for everyone thinking it..... my elevator doesn't go all the way to the top when it comes to understanding this stuff lolol

five7kid

iTrader: (14)

Just round up to the next increment.

And, be sure that they are rated for that flow at whatever fuel pressure you're running. Typical LS is 58 psi. Any idea what pressure you're going to run?

89fbrestor

i have two intake 255lph fuel pumps so what ever is needed I'll run. i haven't bought my fuel pressure regulator yet. I'm finally to the point of getting together some of these smaller items and I'm just trying to make sure i do my homework before making any purchases