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

Injector size?

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Old Jun 29, 2013 | 01:45 PM
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WGlen C4's Avatar
WGlen C4
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Default Injector size?

How can I tell if I have 22lb or 24 lb injectors in my '91 standard coupe?
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Old Jun 29, 2013 | 02:16 PM
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Stock size is 22 pound. Do you know if they have ever been changed?
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Old Jun 29, 2013 | 02:25 PM
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OEM fuel injectors in my '88 Vette flow 24lb/hr and the BLMs are all very close to 128 with OEM FPR.

To see if your injectors are correct size, scan the BLM values. If too small the ECM will bump the values above the quiescent 128.
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Old Jun 29, 2013 | 09:29 PM
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Don't know. they are black on top.
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Old Jun 29, 2013 | 10:09 PM
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Originally Posted by WGlen C4
How can I tell if I have 22lb or 24 lb injectors in my '91 standard coupe?
If you know they're all the same, the best way to know is to have at least one of them professionally flowed........

KW
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