Duramax Diesels Forum Truck of the Week
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Old 08-07-2018, 10:27 PM
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Default Fuel system downgrade

I am removing my dual stock pumps to install my 10mm (that was supposed to be a 12mm ) Exergy pump by itself. I’m running 2500 uS at 195 MPa right now on my 100% over LMM injectors. Anyone know if this 10mm pump will be able to keep up?
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Last edited by JoshH; 08-08-2018 at 06:37 AM.
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Old 08-07-2018, 11:13 PM
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What size injectors?
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Old 08-08-2018, 04:16 AM
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I think thats the first time Ive read the word "downgrade" in a thread title here? You had me scared for a second, Josh.



As to your question, yeah....need to know injector size too.
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Old 08-08-2018, 06:38 AM
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Sorry, I thought I put the injector size in the original post. I fixed it now.
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Old 08-08-2018, 06:55 AM
Bdsankey Bdsankey is offline
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No, you won't be able to keep up with a single 10, if it were a 12 I believe it should. Have you checked the pump stampings to make sure it is a 10 not a 12? The first two numbers are the year, the third number designates what size the pump is.

This info is direct from Rob @ Exergy:

EPxx-2xxx = Sportsman
EPxx-0xxx = 10MM
EPxx-1xxx = 12MM
EPxx-3xxx = 14MM
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Old 08-08-2018, 07:56 PM
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Looks like I’m holding right at 26k psi on 2500 uS pulse width.
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