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

stock pump limits

Thread Tools
 
Search this Thread
 
Old Jun 22, 2011 | 02:15 AM
  #1  
Canbarelygo's Avatar
Thread Starter
Launching!
 
Joined: Feb 2010
Posts: 277
Likes: 1
From: Shawnee, OK
Default stock pump limits

this question may be beat to death but im in a bind and need to know before i go dicking with swappin the pump. ive got a 99 a4 with some ebay longtubes and stock 5.3 heads with the stock intake and everything and when it got tuned it made 331/340 and ive since put a fogger on it and im not so much worried about injectors because its a wet kit as i am the fuel pump not being man enough to keep pressure up to support much over a 100shot

. im just wondering where ill be pushing my limits on the pump because i plan on a deatschwerks pump when its time to do it as ive heard nothing but good things and the tuning shop i use loves them and theyre local. im just wondering if i should go ahead and do the pump swap or if itll be fine for a little while
Reply
Old Jun 22, 2011 | 08:20 AM
  #2  
SSHAWK's Avatar
10 Second Club
iTrader: (14)
 
Joined: Jan 2010
Posts: 468
Likes: 1
From: Forney, Tx
Default

I have this same problem now.....I did all the data logging and the stock pump didn't hold 100 shot.. My car was leaning out on the top end very bad.

I'm cam only with 100 wet shot.

My car has been faster with more weight but, with the 100+ it was outside two weeks ago it slowed me down alot.

I'm now going with a stand alone fuel cell for my system. And also getting a Racetronix 255 Fuel pump


This was two weeks ago. race weight 3340 with me in it
http://www.youtube.com/watch?v=zSZGeTTqLy0

Jan 2011 / Full weight
http://www.youtube.com/watch?v=c6XGA...eature=related
Reply
Old Jun 22, 2011 | 10:22 AM
  #3  
Canbarelygo's Avatar
Thread Starter
Launching!
 
Joined: Feb 2010
Posts: 277
Likes: 1
From: Shawnee, OK
Default

i just know being auto obviously the power numbers where a fuel pump is needed is lower and im runnin around on the stock pump from 99 so i was just curious if where im at with nitrous seems like im in the ball park of needing a pump
Reply
Old Jun 22, 2011 | 05:09 PM
  #4  
MYSTIC-1SC's Avatar
TECH Junkie
iTrader: (14)
 
Joined: Sep 2007
Posts: 3,277
Likes: 14
Default

Go ahead and swap the pump. Definetly better to be safe than sorry.
Reply
Old Jun 22, 2011 | 05:58 PM
  #5  
SSHAWK's Avatar
10 Second Club
iTrader: (14)
 
Joined: Jan 2010
Posts: 468
Likes: 1
From: Forney, Tx
Default

Originally Posted by Canbarelygo
i just know being auto obviously the power numbers where a fuel pump is needed is lower and im runnin around on the stock pump from 99 so i was just curious if where im at with nitrous seems like im in the ball park of needing a pump
Thats what I have is a auto and you need one.

Originally Posted by MYSTIC-1SC
Go ahead and swap the pump. Definetly better to be safe than sorry.
This x2

I tried going without and logs showed your stock pump can't support it.
Reply
Old Jun 22, 2011 | 08:36 PM
  #6  
ZL1Killa's Avatar
TECH Resident
iTrader: (17)
 
Joined: Sep 2004
Posts: 3,747
Likes: 0
From: NC - Charlotte area
Default

fuel & injector sticky. 190L/hr pump 38# injectors max.
Reply
Old Jun 23, 2011 | 10:22 AM
  #7  
Graham@NitrousOutlet
Guest
 
Posts: n/a
Default

Depending what your goals are for the car you can either swap pumps or go with a dedicated fuel system for the nitrous.

I prefer racetronix pumps and a hotwire kit. Pretty inexpensive and will handle any motor you decide to build.

The dedicated while more expensive, offer a lot of positives. Higher power, safety, easier to install, no lean spikes etc.

We have a few fueling options if your interested.
Reply




All times are GMT -5. The time now is 07:33 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