Finding mix information, what hp are 50lb LS injectors good for on a supercharger setup?
5.3 cammed full exhaust with a 2.3L whipple at 58 psi fuel pressure

 

In theory 50# / 525cc/min injectors should support 600 Crank HP on Gasoline and boost.
Cam/headers 5.3 should make ~375hp
Add 6psi and you should be ~525 hp.

 

RDF1, it dynoed at 408hp to the wheels and in my opinion was kind of a mild/safe tune, since I've messed with the tune it's definitely pushing a little more then that at 5psi INJ duty cycle in the 90's stock pump and regulator and fuel lines, what do you think i can get out of a set of 80lb injectors, smaller pull giving 2 maybe 3 more psi with dual 450 pumps through 8an fuel line??
( wanted to go with 90lb injectors but money isn't there right now)

 

That was from a calculator and i rounded down some.
I dont think your going to have a issue with 80s.
80# at 58psi are good for 950-1000hp easy.

Are you running a return or returnless fuel system?
80# rated at 3 bar are 93.5# at 4 bar also. So i prolly messed up on the calculator now thinking about it.
93.5# on pump gas in boost are good for 1100-1200hp.

 

Whats your future goals? I dont see any point in going with Dual 450s yet on gasoline.
A single 340 would flow about as much as your going to want to make prolly.

 

RDF1, I plan on a 6an return back into the bucket it's my understanding that a return would be better, and as far as bar that is something I have to figure out, I know the supercharger kit came with a 3 bar I wouldn't mind going to a 4 bar if it was needed its just another part of the tuning process I haven't played with yet but I have time to figure it out between now and spring

 

The plan was I have a 6.0 block I'm going to stroke to a 408 and was going to do a separate fuel cell just for e85 biy momey isnt there right now , so figured I'd do the fuel system now ( since it's the weak link at the moment) and might throw a 100 wet shot at it and leave it at that till I build the other engine, I figured 2 450's would be a bit much but gives me room to play, plus my luck when I'm taking a long trip to the shore or something a pump will go bad so i can use it as a back up for the time being

 

4 bar map is good for ~45psi.
3 bar is good for ~30psi.
You plan on pushing over 25psi on this new setup?
Return would be much better with a 1:1 referenced regulator.

408 is fun. how much power you looking for?
Yea i always put 2 fuel pumps in mine just for that reason. Trigger wire is in the cab on a switch too.

 

I mean I can say I don't plan on seeing 25psi but lol you know how it works 5 leads to 10 then to 15 lol, the engine in it now is a stock bottom end so I won't do more then 7-8psi and to be honest I got a cheap regulator lol but it is boost reference just doesn't state if it's 1:1 chances are ill buy a good one as a backup come spring and trust me with my luck I make sure I have a backup for everything lol I really would hate to have to drop my gas tank on the side of the highway, and I really don't have a power goal in mind the truck is 6880lbs so kind of is what it is I just want her to get out her own way

 

Stock bottom end doesnt bother me, Its all in the tune and fuel to keep it alive. We run 42-43psi on a 5.3 in my buddys car, it runs high 4.6s in the 1/8th. Leave at 6000rpms at 22psi and shift it at 8800 and 42psi haha.
Ive had good luck with Hyperfuel 44030 on several turbo cars. Its about 150 on summit.

What ya got that weighs 6880?