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Power Adder Getting a Supercharger or Turbocharger? Thinking about using Nitrous? All forced induction and N2O topics discussed here.

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Old 05-04-2009, 11:31 AM   #1
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do i need bigger fuel line?

I am installing a 100hp nitrous plate kit. The system uses twin fuel pumps, do i need to upgrade to a 1/2 inch fuel line to supply both pumps or will 3/8 suffice?
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Old 05-04-2009, 01:17 PM   #2
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Re: do i need bigger fuel line?

Really depends on the rest of your setup. How much power are you making without the nitrous? Also running 2 fuel pumps off the same line seems kind of inefficient.... Why not just run a small fuel cell for the nitrous? or upgrade to 1/2" line and a good pump with 2 regulators.
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Old 05-05-2009, 08:30 AM   #3
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Re: do i need bigger fuel line?

According to Holley:

Quote:
Fuel line size is important with EFI, but there is a tendency to oversize feed lines. A high pressure EFI system does not need the same size lines as a low-pressure carbureted engine. A 3/8" diameter line (-6 AN) line is adequate for engines to at least 750 HP. This is a conservative number. A ½" diameter line (-8) line should be used on engines over 750 HP.
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Old 05-05-2009, 01:35 PM   #4
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Re: do i need bigger fuel line?

Quote:
Originally Posted by 82Five-O
do i need to upgrade to a 1/2 inch fuel line to supply both pumps or will 3/8 suffice?
3/8's will be fine....
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Old 05-07-2009, 01:28 AM   #5
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Re: do i need bigger fuel line?

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Originally Posted by 88IROC350TPI View Post
Really depends on the rest of your setup. How much power are you making without the nitrous? Also running 2 fuel pumps off the same line seems kind of inefficient.... Why not just run a small fuel cell for the nitrous? or upgrade to 1/2" line and a good pump with 2 regulators.
Great idea, ill go for the 1/2line upgrade and good pump with two regulators. Thanks man. I guess i over-engineered that one.
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Old 05-07-2009, 01:28 AM
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