TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

CFI flow rate

Thread Tools
 
Search this Thread
 
Old Jan 25, 2011 | 08:11 PM
  #1  
89rs454's Avatar
Thread Starter
Senior Member
 
Joined: Feb 2009
Posts: 885
Likes: 0
From: USA
Car: 1989 SS
Engine: LT1+1500$ hooker exhaust
Transmission: T56
Axle/Gears: 3.42 bogger
CFI flow rate

Could somone please tell me the the flow rate of stock 305 Crossfire injectors? I have searched for an hour and found nothing but TBI flow rates .
Reply
Old Jan 25, 2011 | 09:55 PM
  #2  
89rs454's Avatar
Thread Starter
Senior Member
 
Joined: Feb 2009
Posts: 885
Likes: 0
From: USA
Car: 1989 SS
Engine: LT1+1500$ hooker exhaust
Transmission: T56
Axle/Gears: 3.42 bogger
Re: CFI flow rate

Are they 55 lb/hr could someone comfirm this?
Reply
Old Jan 25, 2011 | 10:11 PM
  #3  
gheatly's Avatar
Member
iTrader: (2)
 
Joined: Jun 2006
Posts: 181
Likes: 4
From: Dallas, TX
Car: 1982 Z-28
Engine: 5.7L Crossfire
Transmission: TH-350
Axle/Gears: GM Posi, 3.73
Re: CFI flow rate

no, not 55. I believe one is rated at 62 and the other is at 64. The flow rate is staggered due to the fact that fuel is routed thru one TB to the other. I believe drivers side is higher number. Not exactly sure of rates, but I know it is low to mid 60s.

SORRY THAT'S FOR THE 350. Misread engine size. Not sure if 305 had staggered flow rates.
Reply
Old Jan 26, 2011 | 06:40 PM
  #4  
89rs454's Avatar
Thread Starter
Senior Member
 
Joined: Feb 2009
Posts: 885
Likes: 0
From: USA
Car: 1989 SS
Engine: LT1+1500$ hooker exhaust
Transmission: T56
Axle/Gears: 3.42 bogger
Re: CFI flow rate

Will 305 TBI injectors work for a CFI 82 Z28 305? The injectors look the same and the Hp rating is around 165 CFI to 175 Tbi but if it's staggered, will it make a difference? If not, i will just throw an intake and carb on it and be done.
Reply
Old Jan 26, 2011 | 07:46 PM
  #5  
90 camaro cj's Avatar
Member
 
Joined: Nov 2010
Posts: 412
Likes: 1
From: Gilbert, AZ
Car: 1990 camaro RS
Engine: 305 TBI
Transmission: 700r4
Axle/Gears: 2.73
Re: CFI flow rate

maybe talk to your local chevy dealer (ask them too look up the original injectors)
Reply
Old Jan 27, 2011 | 11:32 AM
  #6  
Ronny's Avatar
TGO Supporter
20 Year Member
iTrader: (1)
 
Joined: Mar 2003
Posts: 6,880
Likes: 4
From: wisconsin
Re: CFI flow rate

The flow rate is staggered due to the fact that fuel is routed thru one TB to the other.
stock is plumbed in series. some of us plumbed in parallel. that would allow matched in size.

I am pretty sure this is the case for both CF engines. I would contact FIC injectors and ask what they offer or advice.

Having 2 TBI injectors of same size is not ideal but will get you down the road.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Pac J
Tech / General Engine
3
May 17, 2020 10:44 AM
Fireslash
Camaros for Sale
3
Apr 11, 2016 06:43 PM
LT1Formula
Engine/Drivetrain/Suspension Parts for Sale
7
Oct 8, 2015 08:34 PM
oil pan 4
Fabrication
2
Oct 6, 2015 11:56 AM
dusterbd
TPI
0
Sep 29, 2015 08:40 AM




All times are GMT -5. The time now is 05:13 AM.