Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

inline pump question

Thread Tools
 
Search this Thread
 
Old May 13, 2006 | 10:53 PM
  #1  
99c5vert's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jan 2005
Posts: 310
Likes: 0
Default inline pump question

I need to reroute the plumbing for my fuel lines. The new setup I'm thinking of will require the tank fitting for the pickup to be near the top of the tank... between the tank and the pump, there will be probably 6 feet of fuel line.

Is there any problem with 8 feet of plumbing between the intake of an inline pump and the pickup point?

My pump is a Walbro 255 - engine is a stock LS1.

Thanks
Reply
Old May 14, 2006 | 12:39 AM
  #2  
70 LS1's Avatar
Conversion master
iTrader: (1)
 
Joined: Dec 2001
Posts: 861
Likes: 1
From: Gig Harbor, Wa
Default

I don't think distance is the issue. If you are using an inline pump, the pump has to be below the tank as they are gravity feed. The pumps are good pushers, but poor suckers.

Also you want the pickup to be as low in the tank as possible. What happens when fuel level goes below the pickup?

What are you using this in?
Reply
Old May 14, 2006 | 07:55 AM
  #3  
99c5vert's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jan 2005
Posts: 310
Likes: 0
Default

It's used in a completely custom setup... LS1 in a Lotus 7 replica.

The fuel path will be something like this:


Red is pickup, Green is return, Black is balance line, Blue is to engine (red box would be pump and regulator).

Everything is pretty much accurate with respect to the height of the actual setup.

Currently the fuel is being drawn from a T in the balance line. This prevents the balance line from doing its job while the engine is running, and the right saddle becomes unusable when the fuel runs low. If I shut if off, the fuel transfers over, and then I can use it again.

I have a fitting where the red line is right now... it is used for a vent. I can use that for a pickup, and look into building a vent into the fuel gauge fitting.

Trying to do this to avoid removing the tank...
Reply




All times are GMT -5. The time now is 03:51 PM.

story-0
10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

Slideshow: 10 reasons daily-driving a swap project might not be for you. Or is it?

By Michael S. Palmer | 2026-06-17 09:39:05


VIEW MORE
story-1
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-2
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-06-18 10:26:23


VIEW MORE
story-3
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-4
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-5
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-6
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-7
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-8
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-9
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE