Re: [MBZ] Increasing air flow in Diesel

2007-06-15 Thread Jim Cathey
Friend with 06 Ford F250 Diesel has gotten hyped up about and has 
ordered
parts to, supposedly, increase air flow in his Diesel and, 
supposedly,
increase fuel mileage by 10 to 15 mpg.  Parts include Coolair filter 
and
larger exhaust system.  Somebody, please remind me about airflow 
(trying to

improve it) in a Diesel, lack of throttling, etc.


I'm only aware of improving the air flow, and especially cooling the
intake air charge, to gain more horsepower rather than to improve
mileage.  But I'm spoiled, and can have 25 MPG out of my Dodge any
day I care to drive that slowly.  (Unloaded.)

-- Jim




Re: [MBZ] Increasing air flow in Diesel

2007-06-15 Thread Smith, Todd
I agree with Allan, that diesels do generally run lean; with a oversupply of 
air.  However, there is some advantage to cold air intakes, inputting cooler 
air than the heated air that is present from behind the radiator.  Some claims 
are for a small density increase and some fuel efficiency and horsepower gains.

I have also read of intake vents that are positioned at the windshield/hood 
interface to take advantage of the higher pressure differential that occurs 
there.  Supposedly, cooler air as well as a small pressure increase is worth 
some mileage and horsepower gains.  The other advantage is that by removing the 
high pressure air that the aerodynamics of the vehicle improves since the drag 
coefficient is now lower.

Todd Smith
'85 300CD 248K (deadlined with vacuum leaks)

-Original Message-
[mailto:[EMAIL PROTECTED] Behalf Of Allan Streib
Diesels already run with an oversupply of air, its unlikely that these
parts will make even a detectable difference, no way will he get 10 -
15 MPG improvement.

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[MBZ] Increasing air flow in Diesel

2007-06-14 Thread wilton strickland
Friend with 06 Ford F250 Diesel has gotten hyped up about and has ordered
parts to, supposedly, increase air flow in his Diesel and, supposedly,
increase fuel mileage by 10 to 15 mpg.  Parts include Coolair filter and
larger exhaust system.  Somebody, please remind me about airflow (trying to
improve it) in a Diesel, lack of throttling, etc.

BTW, I'm thinking about selling friend part of a bridge to Brooklyn.

Wilton
91 350SDL, 187kmi
87 300D, 104kmi




Re: [MBZ] Increasing air flow in Diesel

2007-06-14 Thread Allan Streib

Diesels already run with an oversupply of air, its unlikely that these
parts will make even a detectable difference, no way will he get 10 -
15 MPG improvement.

wilton strickland [EMAIL PROTECTED] writes:

 Friend with 06 Ford F250 Diesel has gotten hyped up about and has ordered
 parts to, supposedly, increase air flow in his Diesel and, supposedly,
 increase fuel mileage by 10 to 15 mpg.  Parts include Coolair filter and
 larger exhaust system.  Somebody, please remind me about airflow (trying to
 improve it) in a Diesel, lack of throttling, etc.

 BTW, I'm thinking about selling friend part of a bridge to Brooklyn.

 Wilton
 91 350SDL, 187kmi
 87 300D, 104kmi


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1966 230



Re: [MBZ] Increasing air flow in Diesel

2007-06-14 Thread Levi Smith

I have heard that you CAN increase power and mileage in modern diesels,
though I heard most of that with a computer update.  But free-er flowing
stuff is good for that too...
But, uh... 10-15 mpg??  Like near doubling it???  Now THAT sounds like an
awfully big crock...

Levi

On 6/14/07, wilton strickland [EMAIL PROTECTED] wrote:


Friend with 06 Ford F250 Diesel has gotten hyped up about and has ordered
parts to, supposedly, increase air flow in his Diesel and, supposedly,
increase fuel mileage by 10 to 15 mpg.  Parts include Coolair filter and
larger exhaust system.  Somebody, please remind me about airflow (trying
to
improve it) in a Diesel, lack of throttling, etc.

BTW, I'm thinking about selling friend part of a bridge to Brooklyn.

Wilton
91 350SDL, 187kmi
87 300D, 104kmi


___
http://www.okiebenz.com
For new parts see official list sponsor: http://www.buymbparts.com/
For used parts email [EMAIL PROTECTED]

To Unsubscribe or change delivery options go to:
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Re: [MBZ] Increasing air flow in Diesel

2007-06-14 Thread Kaleb C. Striplin
Those are fine for pickup trucks, bigger exhaust and cold air intake. 
Will give you a couple more miles per gallon.  NO WAY it will give you 
10-15 mpg more.  No reason to do that in a mercedes diesel though.


wilton strickland wrote:

Friend with 06 Ford F250 Diesel has gotten hyped up about and has ordered
parts to, supposedly, increase air flow in his Diesel and, supposedly,
increase fuel mileage by 10 to 15 mpg.  Parts include Coolair filter and
larger exhaust system.  Somebody, please remind me about airflow (trying to
improve it) in a Diesel, lack of throttling, etc.

BTW, I'm thinking about selling friend part of a bridge to Brooklyn.

Wilton
91 350SDL, 187kmi
87 300D, 104kmi


___
http://www.okiebenz.com
For new parts see official list sponsor: http://www.buymbparts.com/
For used parts email [EMAIL PROTECTED]

To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com



--
Kaleb C. Striplin/Claremore, OK
 92 250D Turbo, 92 300E 4Matic, (2x) 91 300D 2.5 Turbo, 90 420SEL,
 89 560SEL, 89 260E, 87 300SDL, 87 300TD, 85 380SE 5.0 Euro,
 81 240D, 81 380SLC, 80 240D, 76 240D, 76 300D, 72 250C, 69 250
http://www.okiebenz.com



Re: [MBZ] Increasing air flow in Diesel

2007-06-14 Thread Peter Frederick
Modern US  diesels are under-rated for pickup use (so the frame doesn't 
bend up like a pretzel and the tranny lasts most of the warrenty), so 
it's very easy to get LOTS more hp from them (double in some cases).  
Just re-program the computer to deliver more fuel.


Reduces the already pitiful milage that much more, though.

KN lives on -- won't do any more for you on a diesel than on a gasser.

Peter