Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

Help... Stock pump???

Thread Tools
 
Search this Thread
 
Old Nov 18, 2012 | 02:31 PM
  #1  
PaSteLaSo4U's Avatar
Thread Starter
Launching!
iTrader: (-2)
 
Joined: Jan 2011
Posts: 214
Likes: 0
Default Help... Stock pump???

is the stock fuel pump branded Racetronix? guy i bought car from said it had stock fuel pump. Car's up in the air getting ready to swap pumps and guy called me and said pump i was going to swap is bad (going to follow up with member from here for selling me bad Racetronix pump) but also said pump in the car now is also a Racetronix but just a lil different from the one i bought..? he's waiting for me to make a decision and i dunno what to do..help
Reply
Old Nov 18, 2012 | 02:35 PM
  #2  
PaSteLaSo4U's Avatar
Thread Starter
Launching!
iTrader: (-2)
 
Joined: Jan 2011
Posts: 214
Likes: 0
Default

the pump i bought is a 255lph so i dunno if someone qould upgrade to a racetronix anything less than that..
Reply
Old Nov 18, 2012 | 06:08 PM
  #3  
ZL1Killa's Avatar
TECH Resident
iTrader: (17)
 
Joined: Sep 2004
Posts: 3,747
Likes: 0
From: NC - Charlotte area
Default

the factory stock unit is a 109 liter per hour pump...don't know brand...AC Delco?

Racetronix pump or aka 255 pumps are likely a Walbro
Reply
Old Nov 18, 2012 | 06:33 PM
  #4  
PaSteLaSo4U's Avatar
Thread Starter
Launching!
iTrader: (-2)
 
Joined: Jan 2011
Posts: 214
Likes: 0
Default

Originally Posted by ZL1Killa
the factory stock unit is a 109 liter per hour pump...don't know brand...AC Delco?

Racetronix pump or aka 255 pumps are likely a Walbro
Thanks bud.

Is there a Racetronix pump below a 255lph? or, are all Racetronix pumps 255 and above? Reason i ask its according to mechanic, pump already in car it's a Racetronix but a little different than the one i bought which it actually had 255lph inprinted in it and with red casing with the words RACETRONIX... Before i tell him to put everything back in the tank and go through the trouble of reinstalling everything back in the car, i want to make sure i don't have a pump lesser than a 255lph .... Anyone?? I already asked him to ck pump to see if it had any LPH's rating on it and he said he didn't see nothing
Reply
Old Nov 18, 2012 | 06:54 PM
  #5  
PaSteLaSo4U's Avatar
Thread Starter
Launching!
iTrader: (-2)
 
Joined: Jan 2011
Posts: 214
Likes: 0
Default

Just got words that pump in car now has pt # RX08104... anyone knows what kinda pump that is?
Reply
Old Nov 18, 2012 | 06:59 PM
  #6  
Lonnies Performance's Avatar
LS1TECH Sponsor
iTrader: (16)
 
Joined: Feb 2007
Posts: 2,662
Likes: 2
From: Pittsburgh, PA
Default

There are two 99-02 Racetronix kits. Both look the same, but they offer 2 different flow pumps. One is a 255lph pump, not sure of the exact flow of the smaller one, maybe 190lph. Both are in the red sleeve.
Reply
Old Nov 18, 2012 | 07:27 PM
  #7  
PaSteLaSo4U's Avatar
Thread Starter
Launching!
iTrader: (-2)
 
Joined: Jan 2011
Posts: 214
Likes: 0
Default

thanks. Pump also says made by Holley??
Reply
Old Nov 18, 2012 | 08:07 PM
  #8  
PaSteLaSo4U's Avatar
Thread Starter
Launching!
iTrader: (-2)
 
Joined: Jan 2011
Posts: 214
Likes: 0
Default

what should i do? i want to spray a 125 dry. i was previously spraying a 75 and everything seemed ok, i'm adding a Racetronix hot wire upgrade. it sucks not knowing what lph my current pump flows and getting shafted here by a member selling a bad fuel pump...
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Nov 18, 2012 | 09:59 PM
  #9  
Lonnies Performance's Avatar
LS1TECH Sponsor
iTrader: (16)
 
Joined: Feb 2007
Posts: 2,662
Likes: 2
From: Pittsburgh, PA
Default

If it says Holley, then it is not from Racetronix... it just may be put in their red sleeve.

If a Holley, it does not have the venturi tube connection... all Racetronix pumps for your application do.
Reply
Old Nov 19, 2012 | 10:11 AM
  #10  
PaSteLaSo4U's Avatar
Thread Starter
Launching!
iTrader: (-2)
 
Joined: Jan 2011
Posts: 214
Likes: 0
Default

Originally Posted by Lonnies Performance
If it says Holley, then it is not from Racetronix... it just may be put in their red sleeve.

If a Holley, it does not have the venturi tube connection... all Racetronix pumps for your application do.
thanks for your help.
Just went to the shop and had the 2 pumps side by side. The p.o.s one I got from the individual on this forum says, Holley HP by Walbro gss346 14903-2.
The one that was in the car just says WALBRO 12704-2 0884 by connector
PAT 4500270-5421306
same as the other pump.
the only difference I noticed was, the incar pump on one end had like a tower head a nipple and a 1/4 orifice, the pump I bought on that end of it just has about a 1" opening with a mesh filter, that's it, pump sizes are the same... help?
Reply
Old Nov 19, 2012 | 02:25 PM
  #11  
PaSteLaSo4U's Avatar
Thread Starter
Launching!
iTrader: (-2)
 
Joined: Jan 2011
Posts: 214
Likes: 0
Default

While the car's on the shop lift waiting for an answer, would be nice if one of you fuel gurus would let me know at least if any of those numbers from previous post mean anything? I would be grateful to an answer, thanks in advance..
Reply
Old Nov 19, 2012 | 05:22 PM
  #12  
Lonnies Performance's Avatar
LS1TECH Sponsor
iTrader: (16)
 
Joined: Feb 2007
Posts: 2,662
Likes: 2
From: Pittsburgh, PA
Default

The small brass nipple dentifies a direct fit pump from Racetronix.

The one with no brass nipple & a roughly 1" inlet is a generic Walbro style pump.
Reply
Old Nov 19, 2012 | 06:46 PM
  #13  
PaSteLaSo4U's Avatar
Thread Starter
Launching!
iTrader: (-2)
 
Joined: Jan 2011
Posts: 214
Likes: 0
Default

Originally Posted by Lonnies Performance
The small brass nipple dentifies a direct fit pump from Racetronix.

The one with no brass nipple & a roughly 1" inlet is a generic Walbro style pump.
thanks for all your help
Reply




All times are GMT -5. The time now is 02:44 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