3/8 line, how much hp can it support?

BillsNogo · Apr 6, 2006

After reading a few post in this section, I was wondering how much hp can a 3/8 line can feed? I have a 454 w/around 450hp and was thinking about installing pre-bent 3/8 and running it in the stock postion, but if 3/8 will only support around 500hp, I think I might as well find a way to adapt my 1/2 aluminum fuel line to a sending unit and a high flow mechanical pump.

thanks as always

69NovaSS · Apr 6, 2006

this is from a link in our weblink library

http://www.centuryperformance.com/fuel.asp said:
Use these figures as a fuel line sizing standard:

Up to 250HP = 5/16" or -04 AN
Up to 375HP = 3/8" or -06 AN
Up to 550HP = 1/2" or -08 AN
Up to 800HP = 5/8" or -10 AN
Up to 1200HP = 3/4" or -12 AN

http://www.centuryperformance.com/fuel.asp

1975ssnova · Apr 7, 2006

What if you have a high volume/high presure pump do these figures still stand true????

BillsNogo · Apr 7, 2006

Bummer, it looks like I will need to keep my 1/2", but how the heck can it work with a mechanical pump, since the largest orfacies that seems to come on these are 3/8"? I was hoping for more of a stock look, but don't know what to do now

Real McCoy · Apr 7, 2006

The dirt racers use a mechanical pump with #8 fittings attached to it for this purpose. They are a higher volumn pump than stock but like like and fit like a stock pump. Maybe Speedway or someone like them has those pumps.

Jinks · Apr 7, 2006

i dunno about those fuel line and hp numbers.. there are plenty of higher horsepower pumps out there that spec -06AN fittings!

3/8 line, how much hp can it support?

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