C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

injector help

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Old May 28, 2008 | 06:54 PM
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dmdeal1985
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From: Jacksonville FL
Default injector help

i was trying to find out what mismatched injectors i have.
0280150223 5235041
5807011 D1810AA Black/green stripe
FJ25 5720D810 Black/blue stripe

from what i could fine i think the first one is the stock one but i couldn't find what the other two were
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Old May 28, 2008 | 07:02 PM
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The FJ25 is a Standard Motor Products injector but I don't know the lbs. rating. You can call their plant for info. Also Summit carries some SMP products. They good American made injectors.
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Old May 28, 2008 | 08:23 PM
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the 0280150223 is a bosch rated at the following: 21.35 lbs 224.4 cc/mn @ 36psi or 2.48 Bar
the D1810AA is a lucas 24lb at 43.5 psi .
the 5720D810 is a standard 24lb at 43.5 psi

all these injectors basically flow the same because the bosch at 43.5psi will deliver 23.92 lb/hr the lucas/standard are disc type and have a faster delay time than that old style stock Bosch.. You should really get a set of matched injectors. It will run a lot better. Use the 22 as a replacement if you are upgrading your fuel pressure reg to a later 3 bar (43.5psi). or get 24's if you are leaving the fuel pressure stock. .
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Old May 28, 2008 | 08:40 PM
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A point of clarificationn, Standard Motor Products now makes the Lucas type injectors. As far as I know Lucas is out of the business.
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Old May 28, 2008 | 08:46 PM
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thanks alot for the help. i'm planning on leaving the fuel pressure at the 36psi. i'm just trying to find out whats going on with this car because it barly idles and and when i rev it it goes really lean like 18+ afr's
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Old May 28, 2008 | 09:05 PM
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Originally Posted by dmdeal1985
thanks alot for the help. i'm planning on leaving the fuel pressure at the 36psi. i'm just trying to find out whats going on with this car because it barly idles and and when i rev it it goes really lean like 18+ afr's
you can have 1 or 2 plugged injectors.. there is no on the car test for that. Check the coils on each injector then make sure they are all firing with a noid light.
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