ok i ripped my fuel line and i was thinking about upgrading to bigger lines because of future plans. now i was wondering how big i could go before my stock fuel pump wouldnt be able to flow enough ? like 6an or 8an ? and also how much hp could i support with the new line ?

 

no one knows ?

 

Well in the new Dsport magazine there was a black civic that made 680+ with factory fuel line. -6an on a intank walbro 255lph would be fine.

 

thanks for the info

what size can i go on my fuel line, before its too big for my stock pump ?

 

Your pump & FPR control flow & pressure. Not the size of the line. If you put in a line that's too small it might limit flow, but if the line's too big it's merely a waste.

 

at some point the line will get too big and the fuel pump wont be able to pressurize it enough. for example, a garden hose, now you turn on a small hose and you get good pressure coming out, put on a really big hose and you dont really get any pressure coming out.

 

oh yeah, this is for the hard line the one that runs through the car

 

anyone know how much stock pump flows ?

 

3/8 fuel line is used on every car made

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civickiller &raquo;</TD></TR><TR><TD CLASS="quote">at some point the line will get too big and the fuel pump wont be able to pressurize it enough. for example, a garden hose, now you turn on a small hose and you get good pressure coming out, put on a really big hose and you dont really get any pressure coming out.</TD></TR></TABLE>Pressure & flow rate & velocity are 3 different things. Lemme know after you pass a couple fluid mechanics courses.