I have a 07 nnbs flex fuel 5.3 and im trying to buy bigger injectors since I'm putting a procharger on it but I'm completely lost on all the jibber jabber code stuff for them. I'm thinking I want 60lb off what I've read. Any help would be appreciated

 

Well Im kinda a newbie to tuning and what not. But been in this game along time. A lot of info is needed to answer your question. You going e85? How much power are you looking to make? Then I can go on to answer more...

 

No on E85 and im not sure what to expect power wise. This is my first time dealing with boost. 450-500hp if possible? I bought a P1SC

 

Go to FIC and pick up a set for a ls3 with the uscar plug its what i have for my crewcab but i run 1000cc ones

Being FF youll be fine on fuel pump

 

I've seen ls3 length and ls2 length injectors on the gmt900 intakes... I actually have a nnbs cathedral port intake sitting in my floor that has ls3/ the shortest injectors in it, and then my 5.3 in the Tahoe took the standard/medium ls2 length injectors

 

would you think it would be ok to put a larger injector then whats needed? for ex making 500hp run a 80lb with plans to make 7-800 in future want to buy one set lol

 

Absolutely!

 

What injector would you recommend for a stock 5.3 bw s366 700 to 800 fwhp? Looking to run 93 octane possibly e85 in future

 

I'd get a set of 90lbers!

 

Big injector size for e85 vs pump


900 for e85 1300cc
900 on pump 80s could get ya close