Theoretical question:

So say you get 600HP from heads/cam only... and say that is the limit of the fuel pump/injectors.

Now say you have 450HP from heads/cam and do a 150HP N2O shot... would your fuel pump/injectors hate you as much?

 

You won't get 600 hp from just heads/cam, but Assuming in theory you made 600hp from either of these methods your fuel requirement would be the same. With forced induction however you need a stronger fuel system with higher pressure.

 

I would say even with a natuarlly aspirated 600hp you would need bigger injectors and a better pump.

 

OK... perhaps the theoretical threw you guys off... Would 500HP from heads/cam be better? <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />

Another thought, as the engine approaches these limits, will the fuel pump quit first, or would the injectors max out before that?

 

I hope you don't try to run a stock fuel system with that kind of power. Walbro in tank pump and bigger injectors would be needed.

 

Well, I'm not about to run anything... yet <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> I'm just trying to figure out which will go first on the LS1. I am pretty sure they put larger injectors on around 2000, so I'd like to get an idea of how much HP they'll handle. Pump too. And I figure that a constant 600HP would tax out these parts long before an occasional shot to that HP would using juice. Am I way off on this? I'm kind of new to EFI... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />