Various Topics on Dodge Trucks

....

Does anyone have an opinion on whether I can expect any improvement in power or gas mileage from
an electric fan placed inside the flexible plastic duct that feeds air into the air filter
housing? This is a carbed engine

Jack

..ni.. .. ..e..

On Mon, 14 Jun 2004, Jack wrote:

> Does anyone have an opinion on whether I can expect any improvement in
> power or gas mileage from an electric fan placed inside the flexible
> plastic duct that feeds air into the air filter housing? This is a
> carbed engine

Jack, *please*. You've been asking such good and sound questions...this
clinker sounds like you've been getting too many whiffs of gasoline as you
work on your carburetor. No, you won't get any improvement in anything
from any such electric fan.

-Stern

....

Since the whole object of an internal combustion engine is to draw a fuel-air mixture into the
cylinders, it seems reasonable that anything that helps move air into the system would bring
some benefit, especially at higher rpms. IOW, air is being pulled in by the descending
cylinder. Why not help by giving it a push? It would be helpful if you could include some
reasons why with your pronoucements.

Perhaps the fan could be vaccuum controlled so that it only kicked in when vacuum was below a
certain level or by a switch in the cab that would allow driver control.


Daniel J. Stern wrote:

> On Mon, 14 Jun 2004, Jack wrote:
>
>
>>Does anyone have an opinion on whether I can expect any improvement in
>>power or gas mileage from an electric fan placed inside the flexible
>>plastic duct that feeds air into the air filter housing? This is a
>>carbed engine
>
>
> Jack, *please*. You've been asking such good and sound questions...this
> clinker sounds like you've been getting too many whiffs of gasoline as you
> work on your carburetor. No, you won't get any improvement in anything
> from any such electric fan.
>
> -Stern

..y..

On Mon, 14 Jun 2004 13:03:51 -0700, Jack <zzz@xxx.net> wrote:

>Does anyone have an opinion on whether I can expect any improvement in power or gas mileage from
>an electric fan placed inside the flexible plastic duct that feeds air into the air filter
>housing? This is a carbed engine
>
>Jack

I doubt, seriously, if there is a 12v electric fan manufactured that
will fit into that air duct and supply the air volume that you would
need. Instead of helping, it would obstruct the air flow. (Read the
K&N filter threads about what awful things happen if you obstruct the
air flow) ....

If the fan existed, it would draw so many Amps that it would put an
additional load on your alternator that would eat up any "boost" that
you are thinking about.

If you did manage to pressurize that duct, it would blow air backwards
through the carburetor jets and blow the fuel out on to the top of the
engine and probably catch on fire and .....

It wont work... (You can probably buy one from J. C. Whitney, though!)
So many Garys ..so..
"Clyde"

....

Thanks Clyde, the thought that positive pressure in the air duct might blow gas out one of the
ports in the carb had crossed my mind. Perhaps the best that can be done is to get an
aftermarket air filter housing that is completely open so that the filter element is completely
exposed. As it is, the airflow is constricted down to just a few square inches at the narrowest
point. I'm off to Performance Plus to see what they have.

See y'all later.

Jack

Clyde wrote:

> On Mon, 14 Jun 2004 13:03:51 -0700, Jack <zzz@xxx.net> wrote:
>
>
>>Does anyone have an opinion on whether I can expect any improvement in power or gas mileage from
>>an electric fan placed inside the flexible plastic duct that feeds air into the air filter
>>housing? This is a carbed engine
>>
>>Jack
>
>
> I doubt, seriously, if there is a 12v electric fan manufactured that
> will fit into that air duct and supply the air volume that you would
> need. Instead of helping, it would obstruct the air flow. (Read the
> K&N filter threads about what awful things happen if you obstruct the
> air flow) ....
>
> If the fan existed, it would draw so many Amps that it would put an
> additional load on your alternator that would eat up any "boost" that
> you are thinking about.
>
> If you did manage to pressurize that duct, it would blow air backwards
> through the carburetor jets and blow the fuel out on to the top of the
> engine and probably catch on fire and .....
>
> It wont work... (You can probably buy one from J. C. Whitney, though!)
> So many Garys ..so..
> "Clyde"

..ni.. .. ..e..

On Mon, 14 Jun 2004, Jack wrote:

> Since the whole object of an internal combustion engine is to draw a
> fuel-air mixture into the cylinders, it seems reasonable that anything
> that helps move air into the system would bring some benefit, especially
> at higher rpms.

Such devices are called "superchargers", and they're considerably more
forceful than an electric fan chunked into the air snorkel. An electric
fan chunked into the air snorkel will not only severely restrict intake
air at high RPMs, but it will also sap off more engine power via the
alternator than it will provide due to any supercharging effect.

TANSTAAFL, There Ain't No Such Thing as a Free Lunch.

-Stern

..HV..

"Jack" <zzz@xxx.net> wrote in message
news:10cs3hs31frem4b@corp.supernews.com...
> Since the whole object of an internal combustion engine is to draw a
fuel-air mixture into the
> cylinders, it seems reasonable that anything that helps move air into the
system would bring
> some benefit, especially at higher rpms. IOW, air is being pulled in by
the descending
> cylinder. Why not help by giving it a push? It would be helpful if you
could include some
> reasons why with your pronoucements.
>
> Perhaps the fan could be vaccuum controlled so that it only kicked in when
vacuum was below a
> certain level or by a switch in the cab that would allow driver control.


There is not a "fan" made that will move enough air at a high enough
velocity to work..

Unless you call that "fan" a supercharger, or a turbocharger..

But an electric fan?? LOL..no..wont work.

Hell...I got to thinking about this...and not even the squirrel cages on
these 50 ton RTU units can do what a supercharger can...

>
>
> Daniel J. Stern wrote:
>
> > On Mon, 14 Jun 2004, Jack wrote:
> >
> >
> >>Does anyone have an opinion on whether I can expect any improvement in
> >>power or gas mileage from an electric fan placed inside the flexible
> >>plastic duct that feeds air into the air filter housing? This is a
> >>carbed engine
> >
> >
> > Jack, *please*. You've been asking such good and sound questions...this
> > clinker sounds like you've been getting too many whiffs of gasoline as
you
> > work on your carburetor. No, you won't get any improvement in anything
> > from any such electric fan.
> >
> > -Stern
>
>
>

.... ..g..

Sounds like you're describing a "supercharger" which will give you some
performance improvement, but you're going to need something larger than
a "small electric fan" to get any noticeable gain. Even the big
centrifugal Paxtons max out at maybe 7-10 PSI

nate

Jack wrote:

> Since the whole object of an internal combustion engine is to draw a
> fuel-air mixture into the cylinders, it seems reasonable that anything
> that helps move air into the system would bring some benefit, especially
> at higher rpms. IOW, air is being pulled in by the descending cylinder.
> Why not help by giving it a push? It would be helpful if you could
> include some reasons why with your pronoucements.
>
> Perhaps the fan could be vaccuum controlled so that it only kicked in
> when vacuum was below a certain level or by a switch in the cab that
> would allow driver control.
>
>
> Daniel J. Stern wrote:
>
>> On Mon, 14 Jun 2004, Jack wrote:
>>
>>
>>> Does anyone have an opinion on whether I can expect any improvement in
>>> power or gas mileage from an electric fan placed inside the flexible
>>> plastic duct that feeds air into the air filter housing? This is a
>>> carbed engine
>>
>>
>>
>> Jack, *please*. You've been asking such good and sound questions...this
>> clinker sounds like you've been getting too many whiffs of gasoline as
>> you
>> work on your carburetor. No, you won't get any improvement in anything
>> from any such electric fan.
>>
>> -Stern
>
>
>
>


--
go dry to reply.
http://www.toad.net/~njnagel

..be.. ..nco..

Such a device would be an electric supercharger - these do exist, but I
believe they can only produce a few pounds of boost with a ridiculously
high-speed fan motor..

--
Robert Han**** Saskatoon, SK, Canada
To email, remove "nospam" from han****r@nospamshaw.ca
Home Page: http://www.roberthan****.com/


"Jack" <zzz@xxx.net> wrote in message
news:10cs3hs31frem4b@corp.supernews.com...
> Since the whole object of an internal combustion engine is to draw a
fuel-air mixture into the
> cylinders, it seems reasonable that anything that helps move air into the
system would bring
> some benefit, especially at higher rpms. IOW, air is being pulled in by
the descending
> cylinder. Why not help by giving it a push? It would be helpful if you
could include some
> reasons why with your pronoucements.
>
> Perhaps the fan could be vaccuum controlled so that it only kicked in when
vacuum was below a
> certain level or by a switch in the cab that would allow driver control.
>
>
> Daniel J. Stern wrote:
>
> > On Mon, 14 Jun 2004, Jack wrote:
> >
> >
> >>Does anyone have an opinion on whether I can expect any improvement in
> >>power or gas mileage from an electric fan placed inside the flexible
> >>plastic duct that feeds air into the air filter housing? This is a
> >>carbed engine
> >
> >
> > Jack, *please*. You've been asking such good and sound questions...this
> > clinker sounds like you've been getting too many whiffs of gasoline as
you
> > work on your carburetor. No, you won't get any improvement in anything
> > from any such electric fan.
> >
> > -Stern
>
>
>

..ni.. .. ..e..

On Tue, 15 Jun 2004, Robert Han**** wrote:

> Such a device would be an electric supercharger - these do exist, but I
> believe they can only produce a few pounds of boost with a ridiculously
> high-speed fan motor..

....powered by the alternator on the vehicle. There is no such thing as a
perpetual motion machine.