[0piston]

I have 6x600cc injectors that I am installing--considering this, will the stock fuel pump be able to support the fuel rate needed for a 600hp target? I am considering upgrading to a nismo or tomei fuel pump as the flow rate is about ~30% more, is it really needed?

Any info appriciated thanks,
Joe

 

[GTR RICH]

Stealth 316 - Fuel Pump Upgrade Guide this info might be some help with flow rates

 

[Beer Baron]

personally i wouldn't persist with the stock pump. it's fairly well matched to the stock 440cc injectors. it could (if in good condition, and supplied with the full 13.8v) run up to 500cc injectors, but for your 600cc ones I would look no further than the nismo pump. It will capably supply them, plus it's quiet, reliable and very easy to fit. it also comes with a new tank seal which is a good idea on a 32. at 290l/h it flows enough to run up to 750cc injectors easily. the only downside of the whole thing is that it costs money!