Just like the title says, flex fuel 2013 5.3 with a dedicated drive D1 and 47lb injectors. Running out of fuel on the big end. Melted a piston already. all back together, waiting on parts from the hydrodipper. What is the best option for a delivery system that will support the fuel I need? I've read tons of the same questions, but not for a '13 returnless system. Thanks in advance.

 

im a 2010 Flex-Fuel truck and made 540/554 on stock fuel system however I have much larger injectors then youre running

with some tweaking of the stock fuel PCM you can easily make 500 range on stock fuel pump anything past that you need to look into other ways

 

if u wanna go with stock pump u should using booster pump , but if u looking secondary pump out line u should delete FPCM

 

Thinking of a secondary pump. Is there a sticky on deleting the FPCM? What do you think about a surge tank and how big of an injector should I be using? The kit was on a buddies truck (From House Of Boost) and ran amazing. (Same tuner) but he had a 4x4 and wasn't doing pulls like I am. Thanks for the info.

 

47lb injectors don't support much power..right around 500 and they are maxed

You can make a zl1 setup work if your know your way around and they are factory dual pumps

 

Will a ZL1 pump "module" drop right in, or do you gut both and put the ZL1 goodies in a modded truck basket? This is awesome info BTW.

 

You have to gut and build and then set the fuel pcm up like the camaro

Looked into this for my truck if I ever wanted more power and next option would be a new module and Repin the fuel pump pcm like you do when you install a ligenfelter pump setup

 

just get a bigger single pump and injectors and call it a day.

 

340 in tank? How large of an injector should I run? For now the D1 and exhaust are the only mods. Running 92 due to the lack of E85 in my area.

 

cant just run any normal pump with a fuel PCM