What are the whp/wtq limits of the stock fuel system on a 96-00 civic?

I am mostly curious how much power can be made before needing to upgrade the fuel line it's self.

 

Fuel lines are fine its more of upgrading your fuel pump and fuel injectors.

 

So there not really any reason to use larger fuel line?

 

Honestly i've never head anyone using larger fuel lines. Larger fuel lines does not mean more fuel. Thats controlled by the ecu.

 

The only reason you would need to upgrade your fuel system is if your engine is requiring more fuel then your fuel system can supply. The stock fuel lines can handle around 500-600 whp on c16 fuel using a single walbro 255 lph fuel pump and 1000cc injectors.

 

The capacity of the fuel pump and the Fuel Pressure Regulator will control the pressure at the fuel injectors. Larger fuel line would not make the Fuel Pressure Regulator maintain any different pressure, niether will it increase the capacity of the fuel pump.

Enjoy..