4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Do I Need Bigger Fuel Injectors?

Old 12-20-2009, 12:26 AM
  #11  
mrtstang
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Originally Posted by WannaBeGearHead
So would a person with nitrous be ok with stock injectors? Or would you need 24lb injectors for best results? For that matter what size injectors would be best for 350-400rwhp?
Part of this depends on weather your setup is dry or wet. With a wet kit you don't depend on the maf and injectors as much as a dry kit. You pump is more likely to give out (with a wet kit) before your injectors.

If you were to upgrade i would go a little higher than 24's personally.
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Old 12-20-2009, 01:51 AM
  #12  
02 Silver GT
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So if i go with 24# injectors what else do i need to do to accomidate for them i dont need a bigger fuel pump do i? and how do i recalibrate the MAF?
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Old 12-20-2009, 07:54 AM
  #13  
Chris98Gt
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you can correct the maf with some tuning sofware, not just the handheld. You can tune the car and check duty cycle of the pump, if its too high then you would need to ugrade it. Just depends on what the duty cycle is, idk what a stock pump can handle.
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Old 12-20-2009, 01:34 PM
  #14  
01MGGT
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I have too been trying to figure out if I need to upgrade my 19#ers since I am putting in Cushman stg1 cams. I'll have cams, o/r x flows 75mm TB and plenum K&N filter Sniper SF and my wideband
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