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24# injectors

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Old Dec 18, 2009 | 06:19 PM
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tealcamaromanrs's Avatar
tealcamaromanrs
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Joined: Jun 2009
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From: south coast mass.
Car: 1991 camaro z28 convertible
Engine: 383 tpi
Transmission: t5
24# injectors
what kinda upgrades do i need to do to upgrade my injectors to 24# if any??? 92 350 tpi camaro
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Old Dec 18, 2009 | 07:37 PM
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d4nk's Avatar
d4nk
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From: louisville, co
Car: 86 T/A
Engine: 383
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
Re: 24# injectors
you need to change the fuel injector constants in the PROM or it will be running rich.
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Old Dec 18, 2009 | 08:29 PM
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jv9999
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From: MA
Car: '87 IROC/'68 SS
Engine: 5.7L/350
Transmission: 700R4/Muncie 4-spd
Axle/Gears: 3.27 9 bolt / 3.31 12 bolt
Re: 24# injectors
Originally Posted by d4nk
you need to change the fuel injector constants in the PROM or it will be running rich.
It will run a little rich in open loop, but in closed loop it will be fine. Run a heated O2 sensor and it will get there in a couple minutes.
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Old Dec 18, 2009 | 10:34 PM
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doc
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Joined: Jul 1999
Posts: 2,149
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From: Mims, Florida
Car: '87 IROCZ
Engine: 395 ZZ4
Transmission: ProBuilt 700R4
Axle/Gears: 9 bolt 3.70s
Re: 24# injectors
The ECM should be able to adjust thefuel delivery down about 16%. The flow rate between the 22s and 24s is about 9% different. So you should be OK in closed loop mode, as jv9999 has stated above.
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