TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

fuel injector compatibility

Thread Tools
 
Search this Thread
 
Old Mar 21, 2012 | 05:04 PM
  #1  
dark scorpion's Avatar
Thread Starter
Member
iTrader: (2)
 
Joined: Sep 2004
Posts: 168
Likes: 0
From: florida
Car: 1990 gta
Engine: 5.7 l 350 v8
Transmission: automatic
fuel injector compatibility

I am thinking about purchasing a set of spark plugs from a 94 5.7 camaro and putting them in my 90 gta.
My question is are they compatible with my generation of f-body?
Reply
Old Mar 21, 2012 | 05:32 PM
  #2  
redneckjoe's Avatar
Supreme Member
 
Joined: Sep 2011
Posts: 2,080
Likes: 34
From: Spring Hill, Fl.
Car: 87 iroc-z
Engine: 454
Transmission: th350
Axle/Gears: 3.73
Re: fuel injector compatibility

why wouldnt you just get the correct plugs? a 94 5.7 lt-1 with factory aluminum angle plug heads?,.....hmmmm. i doubt it.
Reply
Old Mar 21, 2012 | 06:00 PM
  #3  
vetteoz's Avatar
Supreme Member
20 Year Member
iTrader: (13)
 
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: fuel injector compatibility

Originally Posted by dark scorpion
I am thinking about purchasing a set of spark plugs from a 94 5.7 camaro and putting them in my 90 gta.
Plugs are so cheap no idea why you would want to buy ones for a different engine


Originally Posted by dark scorpion
My question is are they compatible with my generation of f-body?
Get the brand and part # and cross reference it against the plugs speced for your car to see if the same
Reply
Old Mar 21, 2012 | 06:04 PM
  #4  
dark scorpion's Avatar
Thread Starter
Member
iTrader: (2)
 
Joined: Sep 2004
Posts: 168
Likes: 0
From: florida
Car: 1990 gta
Engine: 5.7 l 350 v8
Transmission: automatic
Re: fuel injector compatibility

I totally had a brain fart when I was typing my request.
My question is for the fuel injectors and not the spark plugs.
Sorry guys.
Plugs I have are ok. Delco version.
Reply
Old Mar 21, 2012 | 06:38 PM
  #5  
redneckjoe's Avatar
Supreme Member
 
Joined: Sep 2011
Posts: 2,080
Likes: 34
From: Spring Hill, Fl.
Car: 87 iroc-z
Engine: 454
Transmission: th350
Axle/Gears: 3.73
Re: fuel injector compatibility

yea, the title of your thread struck my odd. lol. no biggie. id follow the advice above,...cross reference your part numbers.
Reply
Old Mar 21, 2012 | 07:32 PM
  #6  
vetteoz's Avatar
Supreme Member
20 Year Member
iTrader: (13)
 
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: fuel injector compatibility

Originally Posted by dark scorpion
My question is for the fuel injectors
Injectors swap fine.

Problem is 94 LT1 injectors are 24lb ;
'90 L98 injectors are 22lb
Reply
Old Mar 22, 2012 | 10:27 AM
  #7  
dark scorpion's Avatar
Thread Starter
Member
iTrader: (2)
 
Joined: Sep 2004
Posts: 168
Likes: 0
From: florida
Car: 1990 gta
Engine: 5.7 l 350 v8
Transmission: automatic
Re: fuel injector compatibility

Too big a jump to swap to 24lbs?
Reply
Old Mar 22, 2012 | 11:32 AM
  #8  
1985WS6TA's Avatar
Junior Member
 
Joined: Jan 2009
Posts: 91
Likes: 0
From: Norfolk,NE
Car: 1985 WS6 Trans Am T-Top
Engine: 355 TPI N/A
Transmission: Borg/Warner T-5
Axle/Gears: 3:42
Re: fuel injector compatibility

Originally Posted by dark scorpion
Too big a jump to swap to 24lbs?
Are your injectors bad? You won't gain any horsepower by just swapping to 24LB injectors, infact you will probably lose horsepower because it will be over fueling the motor a little bit unless you get a tune to compensate.

Last edited by 1985WS6TA; Mar 22, 2012 at 11:35 AM.
Reply
Old Mar 22, 2012 | 12:08 PM
  #9  
dark scorpion's Avatar
Thread Starter
Member
iTrader: (2)
 
Joined: Sep 2004
Posts: 168
Likes: 0
From: florida
Car: 1990 gta
Engine: 5.7 l 350 v8
Transmission: automatic
Re: fuel injector compatibility

Are your injectors bad?
Possibly. Sometimes after the car get warmed up it wants to stall out.
Replaced cap, rotor, plugs wires, coil and icm about a month ago.
Fuel pump was replaced 2 months ago.
These are accel injectors my supervisor had left over in a fuel rail from an old engine.
Forget what they are: 21, 22 lbs?
This was done 3 years ago when I got the car.
Reply
Old Mar 22, 2012 | 03:48 PM
  #10  
dark scorpion's Avatar
Thread Starter
Member
iTrader: (2)
 
Joined: Sep 2004
Posts: 168
Likes: 0
From: florida
Car: 1990 gta
Engine: 5.7 l 350 v8
Transmission: automatic
Re: fuel injector compatibility

So pretty much everything on the ignition system was replaced except the
dizzy itself and the pick-up coil.
Now my people and I have theorized that the icm is bad (i.e. it overheats
and cuts the car off, then it cools down just enough and lets the car run
again).
Could the pick-up coil contribute to this condition before I go throwing parts
at the car it doesn't need?
I plan on getting a gm (delco) icm soon and coat the base with a GOOD
amount of dielectric grease just to be on the safe side.

Any help/suggestions on diagnosis would be appreciated.

Craig
Reply
Old Mar 22, 2012 | 04:53 PM
  #11  
southbay08's Avatar
Sponsor
15 Year Member
 
Joined: Nov 2008
Posts: 1,528
Likes: 49
From: Rockville Centre, NY
Re: fuel injector compatibility

Originally Posted by 1985WS6TA
Are your injectors bad? You won't gain any horsepower by just swapping to 24LB injectors, infact you will probably lose horsepower because it will be over fueling the motor a little bit unless you get a tune to compensate.

Reply
Old Mar 22, 2012 | 05:01 PM
  #12  
vetteoz's Avatar
Supreme Member
20 Year Member
iTrader: (13)
 
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: fuel injector compatibility

Originally Posted by dark scorpion
I have theorized that the icm is bad
(i.e. it overheats and cuts the car off, then it cools down just enough and lets the car run again).
Well documented and common problem with age
Reply
Old Mar 24, 2012 | 05:35 PM
  #13  
fireburdluvr85's Avatar
Senior Member
 
Joined: Apr 2007
Posts: 668
Likes: 0
From: wallingford,ct
Car: 91 formula ws6
Engine: 355 tpi OBDII
Transmission: 4l60E
Axle/Gears: 2.73 with 4th gen brakes
Re: fuel injector compatibility

thats how my car acted. would start fine then run for a few miles then slowly start dying out. ohm them out hot. thats when they fail. hell let it run in your driveway so you arent stranded. under 14/ ohms can them

Last edited by fireburdluvr85; Mar 25, 2012 at 09:11 AM. Reason: wrong button
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bryan623
TPI
7
Mar 22, 2021 06:43 PM
New2Chevy
Engine/Drivetrain/Suspension Parts for Sale
6
Oct 4, 2015 11:27 PM
sweet_87_iroc
Camaros for Sale
5
Sep 25, 2015 10:01 PM
kyleb24
Camaros for Sale
2
Aug 15, 2015 08:24 AM
Firechicken86
Engine/Drivetrain/Suspension Parts for Sale
0
Aug 12, 2015 10:07 PM




All times are GMT -5. The time now is 04:01 PM.