7.3 Liter Powerstroke MPG Upgrades Part 2

In this video I polish the inter-cooler "Y-pipe" and install new inter-cooler and manifold hoses.
Index:
@0.8 Intercooler "Y" Pipe before polishing
@0.36 Flap Wheel
@1:08 Small Dremel Flap Wheel
@2.44 Polished "Y" Pipe and tools used
@4.13 Valley boots installed
@5.40 Old intercooler and valley boots
@5.52 Double clamping the intercooler boots
@7.20 How to work with aluminum tape
@9.16 Link to part 3

Category:

Autos & Vehicles

Tags:

• 7.3
• powerstroke
• f350
• f540
• f550
• 350
• Ford
• intercooler
• hoses
• pipe
• performance
• chip
• pyrometer
• egt
• stainless
• steel
• exhaust
• diesel
• gasoline
• petrol
• mpg
• mpl miles per gallon
• miles
• per
• gallon
• liter
• upgrade
• mod
• modification

[freestylemxer7c]

just like when u polish the inside of your intake in the big block out back....more air faster, smoother, quicker....then ur doin wheelies...before emissions it was a air filter on the carb no long intake tubes....anyways curious to see how this worked for you got the same truck going on looking for MPG diesel is $4.59 in PA

[mars1952]

@freestylemxer7c Hi: It is hard to say for certain but when the truck was new I got about 13MPG on cruise control at highway speeds of 65-75MPH now I am getting 15MPG. That is with a Tymer intake, 4" turbo back exhaust an X-wheel and polished Y/H pipe. I just replaced the recall gray CPS with an original black CPS and got back 1MPG. You should google 7.3L original black CPS to get more info.

Mars

[urbex2007]

@freestylemxer7c All the pitting inside pipes is caused by aftermarket air filters using a mesh/cotton & oil design. They are much smaller in terms of surface area so the holes need to be 10 times bigger, which allows dirt in. Wait until you see what they do to a turbo turning at high RPM. Paper filters are way oversized and don't degrade every few months. The BoyRacer market is a multimillion pound industry based on lies as that's what sales people do best! Learn about engines FIRST !

[mars1952]

@urbex2007 You are somewhat confused about air filter technology and the damage done by small particles entering the air intake. The pits and bumps on the 'Y" pipe are casting artifacts. If small particles entered the air stream they would wear things smooth not create pits. Since this video was made I switched to a Tymar type air filter.

[automotiveDIY]

you will have a larger velocity of air moving through those pipes if you left the casting. thats why when you port and polish a cylidner head, you only polish the exhaust side. when you have casting, the air travels OVER the low spots and has less drag.

[mars1952]

@automotiveDIY Hi: I would like to know where you learned that, I don't think that it is true. Every irregularity in a tube that moves air will cause an increase in static pressure and cause turbulence. That is why intakes and exhausts are mandrel bent to give smooth radius's. If leaving the rough castings on the intake is superior to polished then it would be superior in the exhaust as well. If rough was better then you would see a raft of after market products that are roughened inside.

Mars

[mars1952]

Hi urbex2007: You are mistaken. The defects inside the turbo y pipe are casting artifacts. The video is low resolution and doesn't show enough detail for you to see. Anyway, I rebuilt my first engine about 10 years before you were born and I know what I am talking about.

Mars

[73LFord]

@lynel1985 I may be wrong but aren't these engines direct injected? In that case the air fuel mixture isn't traveling through that intake its just air, so the less turbulence the faster you can get the air in there right?

[modeyus1984]

Good video, there's plenty of "that's what she said" moments in there. Lol

[y0manda]

I'm curious why you polished the intake side. Noob

[michaelovitch]

it works very well.

all the guys porting "street" heads do that nowadays.

[michaelovitch]

@mars1952

He wants to speak about to control turbulences when creating a non mirror finish surface.

quite rough like a 80 finish grit.

you will have a laminar flow if you create a such finish.

it allow you to create tiny turbulences on the surface of the manifold to allow the flow to slide on those turbulences.

you sacrifice a bit of the flow (the part touching the manifold) to allow a better flowing at the center of the section.

you use the viscosity of the air

i