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horsepower gain

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Old 08-16-2009, 01:43 AM
  #11  
H0SS302
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your still not going to gain ANY hp...
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Old 08-16-2009, 02:14 AM
  #12  
SVTeeshirt
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+ wun.
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Old 08-16-2009, 03:31 AM
  #13  
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it's going run like crap with those injectors...... on a stock motor
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Old 08-16-2009, 08:40 AM
  #14  
cliffyk
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Originally Posted by sptdexs
So i just bought a ford racing PI intake manifold, high flow fuel rails, 30lb fuel injectors, and a ford racing mass air flow sensor. what kind of horse power should i expect without a custom tune, and how much more will i get once i do get a dyno tune?
Without a tune, 20HP to 30+HP less than you have now, the 30lb/h injectors are way too big and without a tune the engine will run pig-rich.

I see that you changed your order to 24lb/h injectors, these will still be too large and make the engine run rich--maybe you'll only lose 10-20 HP.

The OEM tune in your '00 GT is configured for 19lb/h (orange) injectors, Ford realised these were too small and installed 21lb/h (pink) injectors in late 2001/2002 MY production. The tune (low and high injector slopes) seems to have been unaltered, making GT's with the pink injectors run a bit rich at WOT.

If you really want more power buy a tuner, you'll need it to account for any change of injector capacity anyway.
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Old 08-16-2009, 10:39 AM
  #15  
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0, if any just from the tune...
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Old 08-27-2009, 02:26 AM
  #16  
Mach1Marauder
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Originally Posted by GTRACER88
Are you N/A? Why such big injectors?
Coming from the "NITROUS EXPERT" that tells people that you have to add larger injectors to a MACH1 when you shoot a NX 150 WET shot, I find that ironic and funny as hell!

I see you have polluted this site also with your foolish INTERNET tech!
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Old 08-27-2009, 11:18 AM
  #17  
stangalator
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i have 24 lb/hr injectors, however i also have a cobra maf that's calibrated for it. plus i have a sniper tuner. no change in power for going from 19-24 though. the injectors just work less hard, only when the 19's are maxed will you gain power from upgrading really.

However, if you bought them you'll be ready for a F/I or N2O or ported heads later on down the road
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Old 08-27-2009, 12:04 PM
  #18  
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5-15 from the intake and 15-30 from the tune, probably 20-30 all together
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Old 08-27-2009, 01:03 PM
  #19  
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Originally Posted by Fobra
5-15 from the intake and 15-30 from the tune, probably 20-30 all together
How does he gain 5-15 hp from replacing his factory intake?
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Old 08-27-2009, 02:21 PM
  #20  
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[sarcasm]
with all that you should be around 350 at the wheels on a bad day.
[/sarcasm]
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