LT1-LT4 Modifications 1993-97 Gen II Small Block V8

External Fuel pump.

Thread Tools
 
Search this Thread
 
Old Nov 13, 2006 | 04:58 PM
  #1  
Kenneth_CS87's Avatar
Thread Starter
Teching In
 
Joined: Oct 2006
Posts: 8
Likes: 0
Default External Fuel pump.

What is the minimun PSI on the external fuel needed for a 94 LT1. I was thinking of getting this pump.
http://store.summitracing.com/partde...5&autoview=sku

or

http://store.summitracing.com/partde...5&autoview=sku
Reply
Old Nov 13, 2006 | 05:08 PM
  #2  
lethal93ta's Avatar
TECH Enthusiast
 
Joined: Sep 2003
Posts: 501
Likes: 0
From: bethel PA
Default

the stock pressure should be around 43, why are you going external? if the intank takes a dump the external cant pull past it. I did it for a while but thats only due to me having a blower and I needed a booster pump to give me my 90 lbs of pressure I needed to rune mine with small injectors.
Reply
Old Nov 13, 2006 | 05:15 PM
  #3  
MEAN LT1's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Jan 2003
Posts: 1,143
Likes: 0
From: jacksonville,FL
Default

The first one you listed is a carb pump and wont work. Second pump you listed is more of a booster pump and again wont cut b/c of the intank pump.
Reply
Old Nov 13, 2006 | 10:19 PM
  #4  
Kenneth_CS87's Avatar
Thread Starter
Teching In
 
Joined: Oct 2006
Posts: 8
Likes: 0
Default

Motor is in a 1970 C10. NOt a z28.
Reply
Old Nov 14, 2006 | 11:17 AM
  #5  
SS Aleks's Avatar
On The Tree
 
Joined: Sep 2005
Posts: 169
Likes: 0
Default

You will probably hate me for telling you this, but look up the weldon 2025 and the dial-a-flow controll box. That kit (I have it) will set you up for basically annything you can throw at it. It is very expensive. It is dead nuts reliable. I wasted a lot of money and time going with a BG pump (King Homo), chasing problems all over tht didn't exist. I finally pulled that thing out, and installed the weldon kit (same wires and pump location and plumbing) and never had 1 fuel system related issue since.
If at all possible, try to make an in-tank pump work. It is the cheapest, and if your engine is basically stock more than enough. Once you go external, there is (in my opinion) no company better than weldon for fuel system parts.
Reply




All times are GMT -5. The time now is 12:40 PM.

story-0
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-1
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 | 2026-05-28 11:05:11


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE