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

30 lb injectors

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Old Aug 3, 2004 | 08:08 PM
  #1  
chrism400's Avatar
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From: Dayton, OH
30 lb injectors

If 30 lb injectors are installed, do you have to reprogram the pcm or does the computer just reduce the duty cycle on its own? I have a 50 dry shot and would like to go to a 75 just for grins .
Old Aug 3, 2004 | 08:11 PM
  #2  
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Re: 30 lb injectors

Going to need it programmed.
Old Aug 3, 2004 | 11:27 PM
  #3  
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Re: 30 lb injectors

Can Brian Herter do it at PCMforless?
Old Aug 3, 2004 | 11:37 PM
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Re: 30 lb injectors

Yes. I would recommend him.
Old Aug 4, 2004 | 12:02 AM
  #5  
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Re: 30 lb injectors

I went through Bryan and my car totally rebuilt fired up on a touch of the ignition and has run perfect since.
Old Aug 4, 2004 | 11:08 AM
  #6  
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Re: 30 lb injectors

Originally Posted by chrism400
If 30 lb injectors are installed, do you have to reprogram the pcm or does the computer just reduce the duty cycle on its own? I have a 50 dry shot and would like to go to a 75 just for grins .
How does your dry kit "add" the fuel required for the nitrous? Most of them increase the fuel pressure to get the extra flow. You would just need to bump the fuel pressure higher to increase the flow from what is required for the 50-shot, so you could run a 75-shot. You typically don't change injectors, you alter the fuel pressure, using the method provided in your kit.
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