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500 EFI fuel lines

Old 04-29-2003, 06:30 AM
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Default 500 EFI fuel lines

Anyone have experience upgrading the fuel lines on the 500EFI?
I'm putting Aeroquip -8 fitttings from the tanks up to the filter but the stock filter has a 1/4" fitting. Any ideas? Is there a better filter that will bolt on? Will this cause any problems?

Thanks
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Old 04-29-2003, 08:22 AM
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Adivanman
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Smile HP500EFI Fuel Lines

We used -6 rather then -8 with no problems. There is really no advantage to the bigger line since the fuel filter and cool fuel will ultimately determine flow. I did end up with -8 in the Camaro but it was already there and I wasn't using the cool fuel or filter anyway. Biggest issue to contend with (in the boat) is corrosion (of the anodized aluminum fittings) unless you go with stainless or nickle coated.

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Old 04-29-2003, 08:43 AM
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If you feel you need larger fittings on the filter housing, you can drill and retap them to 3/8npt.
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Old 04-29-2003, 09:09 PM
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I can't believe 500 h.p. is supported with 1/4" line but everyone says you need 1/2" or 5/8" to support 700-800 hp.

I was going to install a Whipple so I was already upgrading the fuel lines to -8 but the whipple system doesn't use the factory fuel filter. Now I'm not installing it so all the fittings and hoses are on up to the factory filter.
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