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How much HP can a 3/8” pick up tube and 1/2” line handle?

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  • 1 Post By BenPerfected
  • 1 Post By F-2 Speedy

How much HP can a 3/8” pick up tube and 1/2” line handle?

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Old 01-11-2019, 01:36 PM
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Default How much HP can a 3/8” pick up tube and 1/2” line handle?

With the new engine (~625hp dyno trim) I’m going to use the Holley Sniper system and currently have the stock Baja 3/8” pick up tube in the tank with 3’ of 1/2” line running to the filter head. I’ve read everything from 3/8” is good for 800hp to you need -12 for anything over 500hp, but very little of that is practical marine experience, so I ask the OSO brain trust.
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Old 01-11-2019, 04:32 PM
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Originally Posted by Baja Rooster View Post
With the new engine (~625hp dyno trim) I’m going to use the Holley Sniper system and currently have the stock Baja 3/8” pick up tube in the tank with 3’ of 1/2” line running to the filter head. I’ve read everything from 3/8” is good for 800hp to you need -12 for anything over 500hp, but very little of that is practical marine experience, so I ask the OSO brain trust.
Check your wording.....
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Old 01-11-2019, 05:07 PM
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I ran a pair of 540's 630hp in a 33 Outlaw with factory fuel pickups never an issue...........-12 is for water, these aren't Top fuel motors
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Old 01-11-2019, 09:39 PM
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Originally Posted by F-2 Speedy View Post
I ran a pair of 540's 630hp in a 33 Outlaw with factory fuel pickups never an issue...........-12 is for water, these aren't Top fuel motors
Thanks, Speedy. Given that the kit comes with entirely 3/8” line good for 650hp then the stock pick up should be adequate.
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Old 01-15-2019, 06:28 PM
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Might depend whether you're pulling or pushing the fuel, is there a check valve in the pick up, how many 90's.
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Old 01-15-2019, 07:44 PM
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Originally Posted by GPM View Post
Might depend whether you're pulling or pushing the fuel, is there a check valve in the pick up, how many 90's.
We had the same concerns. We decided that as long as we can hold 6+ psi of NA fuel pressure at WOT we are good to go.
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Old 01-15-2019, 07:57 PM
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That works
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