I have a 2004 F250 6.8 6 Speed. Do not tow, usually run empty (excessive, I know, but fun!). Truck runs great, gets better than average mileage (according to the polls in this forum), and I'm not tempted to make any major modifications. However, I keep seeing claims for increased power and mileage on the promos for intake manifold risers. The risers are cheap (typically <$100) and installation appears to be easy. In this world of >$2 (post mid-term elections, likely >$3) regular gas, it wouldn't take very much of an improvement to justify a ~$150 investment. Has anyone here had experience with installing one of these on a 6.8l without doing a host of related mods at the same time? Thx!

-Scott

 

Scott aka samiller

I assume you are referring to the AirRaid or similar throttle body spacer...a 1 inch thick piece of aluminum with or with out some form of swirling to the intake air charge...

They are all snake oil..we don't have a carburator... the motor is direct injection and there is no use for spinning the intake air charge because there is no fuel to spin up and atomize in the intake plenum... it just causes extra turbulence and most of the time that is counter productive to what the engineers wanted...smooth laminar air flow equally distributed to each intake valve.

There are a few here that will swear they got more power or some extra MPG out of them...there are others that swear you can get them on e-bay for less then $10 delivered...

This product is the same category as fuel magnets, turbonators, battery catalysts, fuel catalysts, and slick 50...pure bunko snake oil over hyped BS products...

 

well i can't say there worth it, but you can either find a used one, or there was a user selling them as "factoy blems" with the starting bid at .99! i think his e-bay name is "TBBLEMS"!

paying $100 for one no, increase in mpg very little if any.

HOSS

 

Here are a few adverts I keep just for laughs:
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Give your F250/350 that extra kick you have been looking for with MAC's Air Intake System under the hood.
Gain 22 Horsepower, Increased Gas Mileage, High Luster Chrome Finished Air Tube, Complete 3.5' System to Throttle Body
$194.59
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Cold Air Intake, With Box, Gain Up To 18 Horsepower And 40 Ft Lbs Of Torque, Improves Gas Mileage, Includes Volant Air Duct, Shield, Ram Filter, Silicone Connectors & Stainless Steel Clamps, Carbon Fiber Lid Look, C.A.R.B. Approved In 50 States, Installs In 20 Minutes Or Less. Now you can buy a top quality Cold Air Intake system without paying a fortune. All of our Cold Air Intake systems have been priced at wholesale to save you more.
Price: $277.00
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Cold Air Intake System, Stage 1 System, Includes Air Box, Filter, Instructions And Hardware, Easy Installation, Replaces OE Air Box And Filter, Uses Factory Mounting Points, Adds Up To 64 Ft Lbs Of Torque, increase gas mileage, Replaces 54-10631. Because of the increased airflow and reduced covering Cold Air Intake noise is usually increased.
$329.99
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TORNADO FUEL SAVER -- Air Management System, Increase Gas Mileage by 1 to 2 Miles Per Gallon! A Non-Moving Turbine Shaped Device With Unique Airflow Dynamics That Create A Swirling, Fast Burn Effect In The Combustion Chamber That Produces Improved Airflow And A More Efficient Combustion. 3" Diameter x 1.5" Height, Install Inside Intake Tube By V-10 Stamp
$54.95
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Ford 6.8L V10
AEM Synthetic Dryflow Brute Force Air Intake.
CNC mandrel-bent 6061 polished aluminum pipe.
Free filter service kit included. C.A.R.B. exemption (50-state legal).
18.4 Rear Wheel Horsepower Gain, up to 4% increase in fuel economy
$ 199.95
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With less drag on the engine, the computer controlled 5000 CFM High Flow Electric 2-Fan Kit provides a solid 17 HP & 20 Ft. lbs. of torque at the rear wheels, compared to the factory clutch fan kit!
Features:
Dual 15" Blades Move 5500 CFM
17 HP & 20 Ft. Lbs. Torque Wheel HP
Includes new Variable Speed Control
Improves Gas Mileage
Quicker Warm-up & Cool Down
Easy 2 Hour Installation
Electric 2-Fan Kit
$ 459.95
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My all time favorite.... this is how they introduce their product
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Forget everything you've ever heard about plug wires!!!

We’ve all heard about the magic pill in the gas tank or the secret formulas that will get you 50 MPG and increased Horsepower. Experience has taught us that their outrageous claims are mostly smoke and mirrors. However every so often something comes along that’s real and this is one of them.

97-04 FORD HARD-CORE Performance WIRE SET (coil-pack style)
Adds 15 HP and 17 lb.tq to the rear wheels, up to 15% incresed fuel mileage
Exceeds O.E.M. specifications and is covered by a limited lifetime warranty
$ 89.95 NGKTR7IX

 

darn son just can't let that go huh.............

gotta admit, even though your always good for a long post, those ads are funny! got a web site for ya FRDVON4

it's where i'm ordering ALL my next performance parts from.......*wink*

DISCOUNT PARTS

check it out, i know you'll like it