Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

Lift Pump? When is it Time?

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Old 01-20-2010, 10:23 PM
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Lift Pump? When is it Time?

On a 12 valve, at what point (hp level) do we need to upgrade to an after market fuel system, fass etc... What kind of hp will the stocker handle?
Old 01-23-2010, 08:28 PM
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Any guesses?
Old 01-23-2010, 10:13 PM
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you won't run out of fuel with the stock mec. pump.
Old 01-24-2010, 11:23 PM
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600
Old 01-25-2010, 12:17 AM
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Old 01-25-2010, 07:58 PM
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Around 700hp with a 12mm pump mine started dropping the fuel pressure down into the low teens. When i switched to the 13mm pump it drops it down into the low teens with a little over 1/2 throttle. I have a 200gph Fass on a toggle switch that i turn on when i am going to play. The rest of the time I run off just the mechanical pump.My guess would be around 650 or so.
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