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24# Injectors too little???

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Old Sep 1, 2006 | 11:04 PM
  #1  
heat seeker's Avatar
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From: Austin TX
Car: 89 Formula
Engine: 383 SBC/HSR
Transmission: 700R4
Axle/Gears: 3.73
24# Injectors too little???

I have two sets of injectors 24# and 30#, and I'm pushing about 415 hp out of my HSR intake and sbc 355 w/ 10.8 compression. See my sig below for specs. Do you think the 24lbs. can handle my power, or should I just drop in my 30lbs and sell the 24lbs. Let me know what your input is. Thanks.
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Old Sep 2, 2006 | 02:07 AM
  #2  
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From: Oak Harbor, WA
Car: 1990 IROC-Z
Engine: 383 HSR
Transmission: 700R4
Axle/Gears: 3.70
You'll be fine with the 24's. Ive been running my 383 with 24's for two years now. Last run at the track netted a 12.2. I'm changing out my intake now in hopes to pull more air through. Drop your 24's in and sell me the 30's!
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Old Sep 2, 2006 | 02:42 AM
  #3  
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From: Casselberry, FLA
Car: 88 V6 'bird/89TBI bird/85 T/A
Engine: 2.8/TBI/TPI
Transmission: V8 T-5/700R4 x2
Axle/Gears: 3.42 open/2.73 open/ 3.27 9 bolt
Some people like to run large injectors at a lower pressure but I like to run smaller injectors at high pressure.

You can do alot with smaller ones just by turning them up some after you've had them properly cleaned. I think it's slightly better efficiency wise as well.

Big injectors on low pressure can help with max power output but you always end up with some wasted fuel that wasn't atomized all the way.
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Old Sep 2, 2006 | 08:45 AM
  #4  
heat seeker's Avatar
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From: Austin TX
Car: 89 Formula
Engine: 383 SBC/HSR
Transmission: 700R4
Axle/Gears: 3.73
I've never really thought of doing it that way. I was told that you always want to set the injectors at 80% duty cycle, which means turning the larger ones down.
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Old Sep 2, 2006 | 05:25 PM
  #5  
heat seeker's Avatar
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From: Austin TX
Car: 89 Formula
Engine: 383 SBC/HSR
Transmission: 700R4
Axle/Gears: 3.73
Does anyone else have any imput on my question??
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