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How do I identify ls6 28.8 injectors?

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Old Feb 2, 2006 | 04:35 PM
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Default How do I identify ls6 28.8 injectors?

I bought some injectors that supposedly came from a 2004 Zo6 I got them and tried to cross ref the part numbers but am not having any luck? Can anyone help?
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Old Feb 2, 2006 | 05:09 PM
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found my own answer...
Delphi / Bosch
28 lb / hr Injector
Part Number 12561462 (Bosch # 0 280 155 931) - This is a LS1 factory GM injector.
Static Flow Rate: 28 lb/hr (294cc) @ 43.5PSI (300kPa)
Fan spray pattern for superior atomization.
High pressure capability
High Impedance / High-Z
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Old Apr 16, 2006 | 12:11 PM
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thanks for the info
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Old Apr 18, 2006 | 12:58 PM
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I didnt think LS6's were rated at 28.8...i coulda swore it was something different.
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Old Apr 18, 2006 | 01:17 PM
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Originally Posted by MSGHUFF
found my own answer...
Delphi / Bosch
28 lb / hr Injector
Part Number 12561462 (Bosch # 0 280 155 931) - This is a LS1 factory GM injector.
Static Flow Rate: 28 lb/hr (294cc) @ 43.5PSI (300kPa)
Fan spray pattern for superior atomization.
High pressure capability
High Impedance / High-Z
That would be a 32.5 lb/hr at 58PSI and looking at a stock 04 LS6 IFR table, they appear to use around a 29.3 lb/hr injector.

29.14, 29.33, 29.51, 29.7, 29.89, 30.01, 30.2, 30.38, 30.57, 30.75, 30.94, 31.06, 31.25, 31.44, 31.56, 31.75, 31.93,
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Old Apr 18, 2006 | 02:16 PM
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Originally Posted by 2xLS1
That would be a 32.5 lb/hr at 58PSI and looking at a stock 04 LS6 IFR table, they appear to use around a 29.3 lb/hr injector.

29.14, 29.33, 29.51, 29.7, 29.89, 30.01, 30.2, 30.38, 30.57, 30.75, 30.94, 31.06, 31.25, 31.44, 31.56, 31.75, 31.93,
FWIW The info I got was copied directly from the Delphi/ Bosch website using the part numbers off mine and a friends zo6
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Old Apr 18, 2006 | 09:07 PM
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This is a good question, I've got the same injectors sitting in my garage waiting to go in. Gm part numbers match and delphi pt#'s match. The stock IFR for 28.8lb injectors is different, check them out

28.70852 28.89454 29.08055 29.26657 29.45258 29.57660 29.76261 29.94863 30.13464 30.25866 30.44467 30.63069 30.81670 30.94072 31.12673 31.31275 31.43676

I want to make sure I use the right IFR when I put them in.
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Old Apr 22, 2006 | 01:54 PM
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Has anyone found an answer?
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Old Apr 27, 2006 | 03:23 PM
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Hey brother!!! Did you swap these out? Heck we might put the 40s on my car for fun and you can have my oems. Damn it needs to stop raining
Dave
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Old Apr 27, 2006 | 08:26 PM
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Actually there are three part numbers:

GMP-12554271 - 97-98
GMP-12561462 - 01-04
GMP-12482704 - 01-04
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Old Apr 27, 2006 | 11:10 PM
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Originally Posted by MSURacing
Actually there are three part numbers:

GMP-12554271 - 97-98
GMP-12561462 - 01-04
GMP-12482704 - 01-04
Can you be more specific on the vehicle models for those #s. We're talking about Z06 LS6 injectors.
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Old Apr 28, 2006 | 09:35 AM
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Those are all the numbers I have. They all flow the same amount, just the 1248 are more than likely the LS1 and the 1256 are for the LS6.
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Old May 3, 2006 | 10:56 PM
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my 98's were 12554271
I looked at ones off a stock 01 SS and they were 12561462
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Old Sep 12, 2006 | 08:30 AM
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i just looked at my injectors for my 02 Z06, they are 12561462
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Old Aug 13, 2009 | 12:12 AM
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I am planning on swaping my stock ls1 intake for the ls6 out of a '04 cts-V including the fuel rails and the injectors. I did a little research and ls1 stock injectors are 24 lb/hr and the ls6 (12561462) are 28 lb/hr. My questions is if I need to retune my PCM? thanks in advance..
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Old Dec 4, 2009 | 01:04 PM
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Originally Posted by dark ws6
I am planning on swaping my stock ls1 intake for the ls6 out of a '04 cts-V including the fuel rails and the injectors. I did a little research and ls1 stock injectors are 24 lb/hr and the ls6 (12561462) are 28 lb/hr. My questions is if I need to retune my PCM? thanks in advance..
I need to know this too....
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Old Apr 27, 2011 | 05:38 PM
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and,.....
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Old Apr 28, 2011 | 01:55 PM
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Whenever the flow rate of your injectors changes you must retune.
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Old Apr 29, 2011 | 11:33 AM
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Yes u must retune my gto came with 28lb/hr
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