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EFI Fuel Line

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Old Mar 29, 2016 | 12:40 PM
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Default EFI Fuel Line

Getting ready to drop in a new tank with an in-tank EFI pump to pair with the new Fitech throttle body. I'm obviously going to have to run at least one new fuel line (for the supply) and can likely use the factory supply as my return line. I'm a little confused on which fuel line will be easiest/most cost efficient and still be safe and durable for an EFI system.

I've been recommended to do Nylon or Neoprene lines (which I believe is what all new factory EFI cars use?). I can't seem to verify if running either of these lines is acceptable for NHRA in case I decide to race the car at all. I would guess if new factory vettes come with these type of lines that they'd be acceptable, but haven't been able to actually verify that.

Obviously I could also run new steel line, but that just seems like a huge hassle to do with the car fully assembled. Looking for something that's a little easier but will still be safe, durable, and acceptable on street and track. Any suggestions?
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Old Mar 29, 2016 | 01:01 PM
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I would use aluminum line and avoid having any extra flexible line than what is necessary to connect at the tank and engine. The aluminum is fairly easy to work with. If you have to, couple pieces together.
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Old Mar 29, 2016 | 01:10 PM
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Originally Posted by lionelhutz
I would use aluminum line and avoid having any extra flexible line than what is necessary to connect at the tank and engine. The aluminum is fairly easy to work with. If you have to, couple pieces together.
Aluminum or steel? I've read that Aluminum shouldn't be used on a street car as it's much more prone to wear due to rubbing or vibration, and much more easily ruptured compared to steel lines.
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Old Mar 29, 2016 | 05:08 PM
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Google "NHRA Accepted Woven or Woven-pushlock Lines" and you can download a pdf of acceptable fuel lines.
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Old Mar 29, 2016 | 05:23 PM
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Originally Posted by rcread
Google "NHRA Accepted Woven or Woven-pushlock Lines" and you can download a pdf of acceptable fuel lines.

Thanks! A few other guys have said the same thing, so it seems thats my best bet. Easier to work with than the steel line, though I'm guessing its not cheap!
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Old Mar 29, 2016 | 05:36 PM
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Look into the Surr product. I ran both supply and return lines from my new tank to the TPI set up I am installing and it was harder to get the old steel lines out than it was to put the new ones in. I went with that set up because it's virtually the same as what is on the new cars. Easy to work with and they have a kit with everything you need including a good assortment of fittings. It worked for me , good luck.
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Old Mar 29, 2016 | 06:07 PM
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Originally Posted by Mcjoshin
Thanks! A few other guys have said the same thing, so it seems thats my best bet. Easier to work with than the steel line, though I'm guessing its not cheap!
The time you save lifting the body to route a factory steel line is probably worth it.
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Old Mar 30, 2016 | 12:54 PM
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Originally Posted by kanvasman
Look into the Surr product. I ran both supply and return lines from my new tank to the TPI set up I am installing and it was harder to get the old steel lines out than it was to put the new ones in. I went with that set up because it's virtually the same as what is on the new cars. Easy to work with and they have a kit with everything you need including a good assortment of fittings. It worked for me , good luck.
That kit looks really nice, but I don't think it is NHRA approved unfortunately. I don't want to run all new line and then not be able to ever race on the track because I ran the wrong kind of line. I wish I could use that as it looks nice and easy :/
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Old Mar 30, 2016 | 02:45 PM
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I'm using PTFE lined hose with aramid jacket and pre crimped hose ends (https://www.pegasusautoracing.com/pr...p?Product=3490)
Top notch service from these guys!

I don't know if it's NHRA approved but their other aramid braid hose is : https://www.pegasusautoracing.com/pr...p?Product=3492

The less hose the better imho. I only have a short piece from the tank to the hardline and from hardline to terminator efi ('returnless' with C5 regulator)

Nick
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