Do these work as advertised?Worth the money?

 

Diesels dont have throttle bodies.

 

Sorry, this should have gone in the gasser forum. My mistake

 

I have the Airaid spacer installed on my '01 PSD. It may be called a throttle body spacer, but it actually fits in the hose connection between the intercooler and intake manifold. I have noticed a slight increase in fuel mileage, but the biggest benefit I have received is the increase of acceleration. It seems to help speed incoming air into the intake and allows turbo to spool up faster. I am pleased with the results of this mod.

 

Mueckster, I am interested in this mod, and am wondering exactly which piece you installed. I looked at the spacers on the motorhaven site, but there are no pics. Can you take a digital pic of the spacer for me? Thanks!

 

I don't have a digital camera at this time, but you can find out more about these spacers at airaid.com. Just look up your application and you can see picures of that spacer. They even have instructions in Adobe Acrobat w/ illustrations as how to install them. I got mine from Truck Performance for about $92 shipping included. It's an easy < 30 min. modification.

 

Thanks...got it!

 

After looking at the pictures on the airraid website, I feel that any gains realized by the spacer would be psychosomatic at best, due to the sudden lightening of one's wallet.

First, the spacer reduces the size of the intake tube, which in turn will reduce intake volume, and second, don't you imagine the turbo will get the air spinning all that it needs?

Spinning it before it gets there is like taking a whiz on a forest fire, you feel better, but you've accomplished nothing.

 

cookie ,your so cruel

 

Don't knock it until you've tried it! The vortex caused by spacer increases the velocity of the air as it passes thru it. It's called "physics".

 

mueckster, do you have any data on your claims? ie:dyno runs not "seat of the pants". I am not being sarcastic toward you. I am no stranger to the pyhsics of airflow, and the application of this product as they state in their install instructions on a Powerstroke diesel and the power increase claims they make are very suspect. The claims they make in their ads are so small they are almost infintesimal. I believe it was 5 or10ft.lbs. increase. This small of an increase could easily be accounted for by tire pressure changes, barometric changes as well as ambient air temp changes.
Take a look at the install instructions, the spacer is installed after the turbo and before the intercooler, so the turbo gets no benefit and the intercooler would negate any "vortex" as the air passes through it. Not to mention the false advertising "throttle body" "increased atomization" these are direct injected engines there is no fuel to atomize in the intake system, this all leads me to be VERY suspicious of any claims this company makes.
Like I said I am not making an attack on you. I just don't tollerate false claims, and rip-offs by corporations.

 

Yes, it does. It is also completely irrelevant in a forced induction application. The turbo dosen't care if the incoming air is moving or not, it's only concern is there is a sufficient air present to fill the engine's requirements. i.e. volume.

I think in this application it could be referred to as "snake oil".

 

The spacer is placed between the intercooler and the intake manifold. This does not affect the spinning effect of the air as it passes into the intake manifold. The spinning increases combustion efficiency. At least, that's the idea behind it.

 

It's an idea that works fine when you are mixing air/fuel in the manifold, like a gasser, but in a Powerstroke the fuel shot isn't delivered until after the intake valve is closed. The only "atomization" of the fuel that takes place comes from the little holes in the injector tip.

 

The only other reason I can explain the performance increase in my truck is that the spacer, along with a free-flowing air filter, allows more air volume to be introduced into the intake. The PCM sees this increase and allows for more fuel, thus increasing power. I realize power gains are not as great as other mods, but the spacer does have positive effects on the intake system. Change is good- if done with a positive attitude.