GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

how to tell if your injectors are maxing out???

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Old 01-04-2005 | 10:10 PM
  #41  
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well I moved my injector flow rate from 3.06 to 3.18
and now it went way rich...
what happened there?
3.18 is stock setting is it not?
plus once I did this I couldnt get it to idle for ****..
idle was way down to around 650-700 even tho I had the table set to idle damn near 1,000Rpms
what did I do wrong?
Old 01-04-2005 | 11:42 PM
  #42  
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you messed with it lol j/k, have you cleaned your injectors yet?? i know we talked about it, but dirty ones would show lean, so good luck see ya thursday.
Old 01-04-2005 | 11:46 PM
  #43  
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Look for another issue. Going from 3.06 to 3.18 should lean it out just a bit. You should be making changes to your PE table. That way you can lean it out at WOT for a specific rpm range. Adjusting the injector flow rate will make a global change.

tooquick - is that a dry or wet shot? If its dry, them more pressure or larger shot will make make you use more injector. If its a wet shot, it will make minimal difference.
Old 01-05-2005 | 12:37 AM
  #44  
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Adjusting the IFR will make a global change and should bring down the LTFT's all around. And by what you were saying, weren't you pretty + on most of the fuel cells in part throttle??

Did you get a chance to mess with your TPS thing again yet?
Old 01-05-2005 | 10:01 AM
  #45  
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Originally Posted by BigTex
Look for another issue. Going from 3.06 to 3.18 should lean it out just a bit. You should be making changes to your PE table. That way you can lean it out at WOT for a specific rpm range. Adjusting the injector flow rate will make a global change.

tooquick - is that a dry or wet shot? If its dry, them more pressure or larger shot will make make you use more injector. If its a wet shot, it will make minimal difference.
Its a wet shot. So I should be safe with a little more nitrous at a 89% duty cycle now?
Old 01-05-2005 | 10:31 AM
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yes, as long as you have good fuel pressure.
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