fuel rail size vs hp rate?

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Feb 6, 2009 | 09:25 AM

tim99ws6

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From: Nashville, TN

fuel rail size vs hp rate?

hey guys,

Anyone have any research on what a fuel rail size will flow hp wise?

In particular what a 3/4" rail vs a 3/8" rail will flow?

Thanks!
Tim

Feb 6, 2009 | 12:46 PM

sevanseriesta

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From: Gardner, KS

Nate and Lonnie might be able to answer this... I think there was a thread a little bit ago I will see if I can find it.

Feb 6, 2009 | 12:55 PM

sevanseriesta

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From: Gardner, KS

This is the closed answer that I could find!
3/4 the way down the page.
https://ls1tech.com/forums/fueling-i...-question.html

Feb 10, 2009 | 02:38 PM

MIGHTYMOUSE

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From: Virginia

yea, the answer is a ton, and don't worry about it!

Feb 10, 2009 | 08:26 PM

Lonnies Performance

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The 3/4" will flow roughly 4 times as much fuel as a 3/8" one will.

Not sure of rail ratings, but a 3/8" fuel line will easily support 750hp.

Feb 11, 2009 | 07:06 AM

tim99ws6

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From: Nashville, TN

Quote:

Originally Posted by Lonnies Performance

The 3/4" will flow roughly 4 times as much fuel as a 3/8" one will.

Not sure of rail ratings, but a 3/8" fuel line will easily support 750hp.

I sure hope so, because 750 isn't going to get it done in my case. I am planning on 800-850rwhp.....

Feb 11, 2009 | 10:17 AM

MIGHTYMOUSE

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From: Virginia

consider that the factory line is what 1/4" ID? and what hp people can make through it like 600rw conservatively; and that 3/8 hose (-6) has twice the area of 1/4

and that only half of all the fuel for the engine is used in a given rail

i thought i went ultra conservative with a single -8 yet i still see people running -8 to EACH rail.. thats easily 1500hp of fuel per rail.. thats redonkulous