LS1TECH - Camaro and Firebird Forum Discussion

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

42lb Injectors too much?

Thread Tools
 
Search this Thread
 
Old 10-28-2008, 07:18 PM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (11)
 
MrDavid's Avatar
 
Join Date: Sep 2006
Location: Upstate, SC
Posts: 541
Likes: 0
Received 0 Likes on 0 Posts

Default 42lb Injectors too much?
Just finished building my 383LS1 with Stage II 5.3 heads and MS4 camshaft. I found green top 42lb injectors a few months ago for a good price so I bought them. Now, i'm thinking that they might be a little much for an all motor car that will be <500hp with the LS6 intake and stock ported TB. Could they pose an issue below 3K rpm by not being able to spray a small enough amount of fuel.

I also have a Walbro 255lph pump and have just over 65lbs of fuel pressure at idle.
MrDavid is offline  
Reply Like
Old 10-28-2008, 09:30 PM
  #2  
TECH Junkie
iTrader: (4)
 
Gordon0652's Avatar
 
Join Date: Sep 2006
Posts: 3,188
Received 2 Likes on 2 Posts

Default
42# sounds great for your app.
Gordon0652 is offline  
Reply Like
Old 10-28-2008, 09:32 PM
  #3  
TECH Fanatic
iTrader: (69)
 
heavy6.0's Avatar
 
Join Date: Apr 2007
Posts: 1,482
Likes: 0
Received 0 Likes on 0 Posts
Default
42lbs is perfect!
heavy6.0 is offline  
Reply Like
Old 10-28-2008, 10:04 PM
  #4  
TECH Resident
iTrader: (17)
 
ZL1Killa's Avatar
 
Join Date: Sep 2004
Location: NC - Charlotte area
Posts: 3,747
Likes: 0
Received 0 Likes on 0 Posts

Default
you are fine. those will run fine and you will have no problems
ZL1Killa is offline  
Reply Like
Old 10-29-2008, 04:46 AM
  #5  
TECH Enthusiast
Thread Starter
iTrader: (11)
 
MrDavid's Avatar
 
Join Date: Sep 2006
Location: Upstate, SC
Posts: 541
Likes: 0
Received 0 Likes on 0 Posts

Default
OK, thanks. Car is being base-tuned now so I can rack up some miles on it before WOT tuning.
MrDavid is offline  
Reply Like
Old 10-29-2008, 03:22 PM
  #6  
12 Second Club
iTrader: (6)
 
Viper's Avatar
 
Join Date: Dec 2001
Location: Cleveland, OH
Posts: 4,909
Received 3 Likes on 3 Posts

Default
Yeah your fine. I have them on a 346 with H/C and 90 intake and it runs great, idles good and sub 3000 is fine.
Viper is offline  
Reply Like
Old 10-31-2008, 07:16 PM
  #7  
Banned
iTrader: (32)
 
2001z's Avatar
 
Join Date: Mar 2005
Location: Fountain Inn, SC
Posts: 1,157
Likes: 0
Received 0 Likes on 0 Posts
Default
Dave break that thing in for we can see what that beast can do at wot!
2001z is offline  
Reply Like

Trending Topics

Old 11-01-2008, 01:46 PM
  #8  
Banned
 
LT SLO's Avatar
 
Join Date: Nov 2008
Location: (DFW) Denton, Texas
Posts: 0
Likes: 0
Received 0 Likes on 0 Posts
Default
I would stick with those for sure!!!
LT SLO is offline  
Reply Like
Old 11-01-2008, 05:28 PM
  #9  
TECH Enthusiast
Thread Starter
iTrader: (11)
 
MrDavid's Avatar
 
Join Date: Sep 2006
Location: Upstate, SC
Posts: 541
Likes: 0
Received 0 Likes on 0 Posts

Default
Working on it Tim. Slowly working on it. The block is too thirsty for oil right now.
MrDavid is offline  
Reply Like
Tags
Back to Subforum
Fueling & Injection
View Next Unread
Engine trouble's




Advanced Search

All times are GMT -5. The time now is 07:18 PM.