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50 psi and 24lb injectors what my fuel press

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Old Apr 1, 2009 | 08:43 AM
  #1  
haha27's Avatar
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From: springfield. aka springtucky.aka.the dirtyfield ohio
Car: 85.iroc.z28
Engine: 385 tpi
Transmission: 700r4
Axle/Gears: 3.42
50 psi and 24lb injectors what my fuel press

i got a 385 tpi mild cam intake porting and shorty headers. i installed 24 lb injectors and a afpr i am currently running about 50 psi.
what does the higher fuel pressure make my 24,s flow like in terms ( at 39 psi they are rated at 24 lb,s but now ruinn at 50 psi they are now like-- lb injectors.
i think the higher pressure is making me run a tad on the rich side. also by just guessing what sounds like i should be running at pressure and or injector size? sorry i am not that good at math or i would figure this out myself....... thanks
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Old Apr 1, 2009 | 10:15 AM
  #2  
RBob's Avatar
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: 50 psi and 24lb injectors what my fuel press

New Flow = Old Flow * sqrt(NewPsi / OldPsi)

= 24 * sqrt(50 / 39)

= 27.2 #/hr

RBob.
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