Fuel System - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

 
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post #1 of 6 Old 06-01-2012, 06:40 PM Thread Starter
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Fuel System

Since the 6.4 already has a stout fuel system would it do me any good to add an aftermarket fuel system? If so how would it help? I have been leaning towards "Fass fuel system" what do ya think
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post #2 of 6 Old 06-01-2012, 07:22 PM
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Id do a airdog if it was me and if you go bigger injectors it will help. Really it just filters it better which is a good thing to

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2008 6.4 with 200k and counting
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5" FLO-PRO exhaust W/6" tip
AFE stage 2 CAI
Spartan tuner
PTP EGR Delete
coolant filter
CCV Mod
leveling kit
4in rear Blocks
20's W/35's
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post #3 of 6 Old 06-02-2012, 09:41 AM Thread Starter
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are we talking a little more ponys, mpg or both
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post #4 of 6 Old 06-02-2012, 06:04 PM
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Just better filtration really

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2008 6.4 with 200k and counting
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5" FLO-PRO exhaust W/6" tip
AFE stage 2 CAI
Spartan tuner
PTP EGR Delete
coolant filter
CCV Mod
leveling kit
4in rear Blocks
20's W/35's
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post #5 of 6 Old 06-03-2012, 09:18 PM
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A FASS or Air Dog is a good thing if they provide better filtration.

Personally, I went with air mods over fuel so that I run cooler temps and don't have to worry about installing and tuning a wastegate. My personal opinion is that with stock turbos and stock fuel, air is more of limitation than fuel. If you do the Air Dog or FASS and 60 HP (15%) nozzles, you HPFP may not keep up on the hotter tunes. If the pulse width is below 2.0 with 60 HP nozzles, you will likely not have any trouble, but when you get to the 2.2-2.3 PW, it is hit or miss on whether you will be able to maintain rail pressure. If you didn't maintain RP, you could upgrade the HPFP, but the only one I know of without going to dual fillers (which is expensive) is IIH and I have heard way to many horror stories with their pump failing and causing very expensive damage.

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post #6 of 6 Old 06-04-2012, 07:03 AM
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I think either a fass or airdog is a good mod for better filtration/water seperation but i agree with B585 that air mods are more important so you have a cool running truck.

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