2.4L LE5 Performance Tech 16 valve 171 hp EcoTec with 163 lb-ft of torque

right size injectors

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Old 10-04-2007 | 06:00 PM
  #26  
BennyHHR's Avatar
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From: SE VA
Just something to think about....

Like REDFOCZ said, he logged an AFR hitting pig rich near 10:1 at the upper end due to the COT.

On a N/A engine you DO NOT make good power that rich. You want to be in the 12.5 to 13.0 range.

As far as the cat goes, GM did this to cover their ass on emission warranty issues. Unless you are planning sustained runs at full power upper RPMs the COT ain't gonna help you.
Old 10-04-2007 | 06:23 PM
  #27  
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Hey Joe
Old 10-04-2007 | 06:34 PM
  #28  
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Originally Posted by NJHK
Umm...this is the 2.4 section...
holy **** i forgot where the hell i was. seriously. i spend too much time here.
Old 10-04-2007 | 06:57 PM
  #29  
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thank you Redfocz for the screen shots. I believe vector said my idc's were in the 70-80% range.
Old 10-04-2007 | 07:02 PM
  #30  
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Originally Posted by NJHK
Wow...

People swapping those injectors out is just retarded if it's only 78 duty cycle...
Damn I really wished mine were running at this persentage,LOL!! Im riding the line
Old 10-04-2007 | 07:08 PM
  #31  
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Mike i'd hate to see your logs. w/ the cams and headwork you are DIEING for a tune. get-er done!!!!
Old 10-04-2007 | 07:12 PM
  #32  
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Originally Posted by Brandon97Z
Mike i'd hate to see your logs. w/ the cams and headwork you are DIEING for a tune. get-er done!!!!
wiith winter comming Ill take it easy,and nail it down in the spring,its starving out a little in second and 4th
Old 10-04-2007 | 07:41 PM
  #33  
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Originally Posted by g5mike
wiith winter comming Ill take it easy,and nail it down in the spring,its starving out a little in second and 4th
Mike do you have a log that you could send me? It would be interested in seeing how the cams are affecting things.

Originally Posted by Brandon97Z
thank you Redfocz for the screen shots. I believe vector said my idc's were in the 70-80% range.
Not a problem glad to help.
Old 10-04-2007 | 07:47 PM
  #34  
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Originally Posted by tlax23
holy **** i forgot where the hell i was. seriously. i spend too much time here.
lol it's alright
Old 10-04-2007 | 08:02 PM
  #35  
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I have a set of stock LSJ injectors if anyone wants to buy a set, complete with factory harness.
Old 10-05-2007 | 02:25 AM
  #36  
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From: Oakdale Ca
thanks for the info guys once i get the header/dp combo ill get a tune and see how the injectors are
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