LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

28.8# injectors better off than 24s?

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Old Feb 22, 2006 | 12:28 AM
  #1  
TransAm396's Avatar
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28.8# injectors better off than 24s?

I might get a good deal on them..for my heads/cam car..would they be better than the 24's? Im going to go with 32#ers eventually..but just for now.
Old Feb 22, 2006 | 03:50 AM
  #2  
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Re: 28.8# injectors better off than 24s?

These arent LS1 injectors are they? If so, they achieve the 28# with a higher fuel pressure than the LT1 cars. I belive that at around stock LT1 pressure, they flow about the same as the stock 24's.
Old Feb 22, 2006 | 11:48 AM
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Re: 28.8# injectors better off than 24s?

oh. yes, yes thay are the LS1 injectors.
Old Feb 22, 2006 | 12:54 PM
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Re: 28.8# injectors better off than 24s?

there have been a few guys on the impalaSS board that say by using the Ls1 injectors the car idles much smoother,however if you have an inj. that is rated at 28lbs.using 55psi of fuel it would be cut down to what at 45psi?hmm is it worth it when you can purchase a NEW unused set of 32lb racetronix.no argument intended just food for thought
Old Feb 22, 2006 | 01:42 PM
  #5  
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Re: 28.8# injectors better off than 24s?

An injector rated to flow 28.8 #/HR at the 4bar (58psi) pressure used in the LS1's wll only flow 24.9 #/HR at 3 bar (43.5psi) in the LT1 fuel system. The stock 94+ LT1 injectors are set at 24.9 #/HR in the stock PCM programming.... no change.
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