PerformanceTrucks.net Forums

FORCED INDUCTION Turbos | Superchargers | Intercoolers | H2O/Meth Injection

Fuel system

Thread Tools
 
Search this Thread
 
Old 08-11-2015, 06:09 PM
  #1  
Teching In
Thread Starter
 
Wareagle23's Avatar
 
Join Date: Mar 2013
Location: Gardendale Alabama
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default Fuel system
Alright gentleman, 65mm holset, 100lb injectors on a stock 4.8. Running 8-10 lbs of boost. My question for you guys is at what point do I need to upgrade my fuel pump? It's a 2011 Sierra. I have a bosch 044 but have yet to use it. Just curious
Wareagle23 is offline  
Reply Like
Old 08-11-2015, 09:29 PM
  #2  
Staging Lane
 
Blackrat48's Avatar
 
Join Date: Feb 2015
Location: Oklahoma
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default
Is your truck tuned and running with boost?
Blackrat48 is offline  
Reply Like
Old 08-11-2015, 10:21 PM
  #3  
Teching In
Thread Starter
 
Wareagle23's Avatar
 
Join Date: Mar 2013
Location: Gardendale Alabama
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default
Yes sir. Tuned and moving along nicely
Wareagle23 is offline  
Reply Like
Old 08-12-2015, 05:46 AM
  #4  
Admin
iTrader: (22)
 
03sierraslt's Avatar
 
Join Date: Jul 2004
Location: Western PA
Posts: 19,004
Received 217 Likes on 173 Posts
Default
How is your fuel pressure under load?
03sierraslt is offline  
Reply Like
Old 08-12-2015, 07:40 AM
  #5  
Teching In
Thread Starter
 
Wareagle23's Avatar
 
Join Date: Mar 2013
Location: Gardendale Alabama
Posts: 28
Likes: 0
Received 0 Likes on 0 Posts
Default
That's what made me ask. Feels like it falls off a little when my boost gets up to 10lbs
Wareagle23 is offline  
Reply Like
Old 08-12-2015, 11:20 AM
  #6  
TECH Enthusiast
 
N20zuki's Avatar
 
Join Date: Jun 2009
Location: Elizabeth City NC
Posts: 653
Likes: 0
Received 0 Likes on 0 Posts
Red face
Originally Posted by Wareagle23
That's what made me ask. Feels like it falls off a little when my boost gets up to 10lbs
A gauge to verify works better than guessing
N20zuki is offline  
Reply Like
Old 08-12-2015, 11:24 AM
  #7  
Staging Lane
 
Blackrat48's Avatar
 
Join Date: Feb 2015
Location: Oklahoma
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default
I would upgrade pump with boost its not real expensive and not that hard to do... I have a walbro 255 lph in mine at 9 psi boost with 60lb injectors with no hiccups or problems what so ever
Blackrat48 is offline  
Reply Like

Trending Topics

Old 08-14-2015, 09:50 AM
  #8  
TECH Fanatic
iTrader: (20)
 
JRENIGAR's Avatar
 
Join Date: Dec 2010
Location: 72396
Posts: 1,534
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by Blackrat48
I would upgrade pump with boost its not real expensive and not that hard to do... I have a walbro 255 lph in mine at 9 psi boost with 60lb injectors with no hiccups or problems what so ever
Whats your setup? Im looking at a used D1SC tuner kit for my non flex fuel 08 denali and I need some fuel system guidance.
JRENIGAR is offline  
Reply Like
Old 08-15-2015, 06:55 PM
  #9  
TECH Veteran
iTrader: (21)
 
Join Date: Nov 2001
Posts: 4,241
Received 7 Likes on 7 Posts
Default
Why 100 lb injectors for only 10 psi on a 4.8L?
1CAMWNDR is offline  
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
v6 vs v8: Towing & MGP
RONIN LSX
GMT 800 & Older GM General Discussion
7
08-10-2015 04:45 PM
How to mount regulator on fuel rail (Holley Hi-ram)
TAPyvehc93
FUEL SYSTEMS
8
08-08-2015 06:35 PM
Upgrading fuel system questions
MS3Z
FUEL SYSTEMS
8
07-30-2015 06:17 PM
Need input, 350-400hp 5.7l vortec build
4B11T
INTERNAL ENGINE MODIFICATIONS
2
07-13-2015 03:48 PM
Back to Subforum
FORCED INDUCTION
View Next Unread
TVS1900 vs TVS2300 for 6.2L and Stock Bottom End




Advanced Search
Quick Reply: Fuel system


Reply Closed Thread Share

All times are GMT -5. The time now is 10:32 AM.