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Bigger injectors

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Old Nov 28, 2005 | 01:16 PM
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Zick's Avatar
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Default Bigger injectors

Can I put in say 42lb injectors and just tune the PCM for it, or will that cause problems.

Reason I ask, is I alway see 8.1 marine injectors for sale but all I want is the regular 8.1 injectors (30lbs)
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Old Nov 28, 2005 | 01:24 PM
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Yes, you just need the IFR table rescaled for the larger injectors and it will run fine with either 30lbs or 43lbs.
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Old Nov 28, 2005 | 03:24 PM
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So basically instead of the 25.24 that is there for factory 24lbs, I can just put in the correct ##'s across the board and it will be ok.
Is the Injector Flow Rate vs. KPA VAC the only table I need to mess with?

Thanks
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Old Nov 28, 2005 | 03:43 PM
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yep
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Old Nov 28, 2005 | 09:13 PM
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Originally Posted by Zick
Can I put in say 42lb injectors and just tune the PCM for it, or will that cause problems.

Reason I ask, is I alway see 8.1 marine injectors for sale but all I want is the regular 8.1 injectors (30lbs)
I have a new take off set of the 8.1 truck injectors that came off a crate motor. They were only used for testing. PM mean offer I may be selling them Because I need the marine injectors.
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Old Nov 28, 2005 | 09:48 PM
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Thanks KBRacing96



Originally Posted by Dark Halo
I have a new take off set of the 8.1 truck injectors that came off a crate motor. They were only used for testing. PM mean offer I may be selling them Because I need the marine injectors.
You got a pm.
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Old Nov 30, 2005 | 03:27 PM
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whats the differance between the 8.1 and the 8.1 marine injectors?
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Old Nov 30, 2005 | 04:14 PM
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Standard 8.1 truck injectors are 31 lbs/hr and marine 8.1's are 43 lbs/hr.
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