Size of wire
 

I am running an electric fuel pump. What size of wire do I need to use. ALSO, Do i have to use a larger fuel line instead of the stock line that is already their?

Thanks, John

Re: Size of wire
 

Depends on the current needs of the pump.
Depends on the fuel needs of the engine.

Re: Size of wire
 

Your pump should say on it how many amps it draws. Thats the amount of current it needs; amps is the unit of measure for current.

Estimate the distance between the pump and it's power supply, which may be the battery, a fuse block, or a terminal block.

Then go to the table here:
http://assets.bluesea.com/files/reso...on_chartlg.jpg

...and find the gauge that corresponds to your combination of amps and length. If you want an adequate connection, use the 10% drop column. If you like overkill -- and who here doesn't? -- then use the 3% column.

If you are a 3% guy, like me, and you have to buy wire, get wire that's labelled "GXL". It's more heat resistant.
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Re: Size of wire
 

Thank you both, Both were great answers and I will use what you said. As far as the fuel line, do I really need to up the size of the line?

John

Re: Size of wire
 

My opinion is that if you're not doing anything to drastically increase fuel useage -- like a bigger engine, a turbo, a supercharger -- then you don't need to increase the fuel line size.

If you're coverting to fuel injection, that's another story, and the manufacturer will specify the details of the fuel lines.
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Re: Size of wire
 

Thanks lsversaw, naw its just a stock 350 with an edelbrock 650.

John