INTERNAL ENGINE MODIFICATIONS Valvetrain |Heads | Strokers | Design | Assembly

injector size

Old Apr 28, 2008 | 09:45 PM
  #11  
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Originally Posted by InchUp
That's why I'm wondering if bolting in these 5.3L injectors that my motor started with is a bad idea. I don't plan on being at WOT very often except maybe on weekends to dig myself out of a mud pit or soggy trail and even then I don't let the needle ping off the red line.
no for us it is a different story.
we are not building stock 5.7 motors.
8.1 injectors or higher, change out the fuel rails, and an after market regulator that can be set.
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Old Apr 28, 2008 | 09:48 PM
  #12  
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What am I looking at for a complete swap to 8.1L injectors and why those over something else?
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Old Apr 28, 2008 | 10:06 PM
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the 8.1 truck or the marine injectors are a direct swap as far as fit. all you have to adjust is the tune. i would bet you could probably squeak by with your stock ones after looking at your build inchup. especially sice you won't be seeing much full load high rpm's.

Last edited by Truckshop; Apr 28, 2008 at 10:08 PM. Reason: can't spell
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Old Apr 28, 2008 | 10:45 PM
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Think so? I hope so, I wasn't planning on changing the fuel setup. Did you read through my 5.7L thread I have going?
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Old May 13, 2008 | 09:46 PM
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well looks like I am at 95% IDC at 6300 rpm so I think before to long I may be looking for injectors, but at least I am not over 100% like I thought I would be.
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