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Need Some Help With Injectors, Flyer Parish Are You Out There

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Old Oct 22, 2004 | 03:21 PM
  #1  
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From: Texas where Bigger is Better
Default Need Some Help With Injectors, Flyer Parish Are You Out There

I need some flow rates on injectors, Here is my situation
* father has an 03SS with a p1sc, cam exhaust, all the goodies, we have finally ran out of injector (pulse width is around 33) check fuel pressure is around 100 psi in boost(fmu unit)
* we are going with the 8.1 injectors #17124531 & deleting the fmu unit
* I have found out the lq9 uses a 25.2lb injector vs my 24.8lb injector
* I would like to install his on my truck
I need the IFR so I can adjust accordingly the 8.1 & the lq9, at least something to get me in the range.

If anyone has any other ideas as to possible cause chime in. the truck has normal driving characteristics until pe kicks in & you get into max boost. the ltft values are -2%, fuel pressure is 100 psi, auxillery fuel pump is functioning, plugs good, O2's drop to almost 0 during boost. When fuel drops out you can see it on the scanner.
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Old Oct 22, 2004 | 03:28 PM
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From: Armpit of East TX
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5.2 should get you close on the 42 lb'ers.

Not sure about the LQ9 injectors. Check out the flash for it.
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Old Oct 22, 2004 | 05:45 PM
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The SS uses the same injector as all the other trucks, sorry. Its the same part number and the same flow rate in LS1 edit.
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