What size fuel line?

[allcarfan]

engine should make about 475hp or so.

Im thinking 3/8" line....is that enough?

Shane

 

[69PaleHorse]

I believe 3/8" inner diameter line is pretty standard up to 500 ponies.

I forget, Shane, is your car fuel injected or carbureted. If fuel injected, the general rule of thumb is 80% of the feed line diameter for the return feed, so 5/16" inner diameter would probably work.

Also, there may be some concerns related to what kind of pumps you have and where they are in relation to your fuel filter. For instance, some electrical pumps don't like being 'pullers' so placing the fuel filter between the pump and the tank adds some resistance that might lessen the efficiency and life of the pump...

Just some thoughts.

 

[allcarfan]

I have a carb'd engine. Naturally aspirated. Sticking with a mechanical fuel pump for now.

 

[69PaleHorse]

I think you should be good to go then man!

 

[xoxbxfx]

aeromotive uses 3/8" fitting on some of their pumps and they rate the pumps up to 700hp... you should be fine