Intake w/ conical filter
 

I'm looking at putting a cone filter in the '92 XJ (4.0L). I was
thinking of hitting the junkyard for the longer 2.5L hose, then fabbing
some sort of cold air hood - though not necessarily right away. (I'll
do it in the YJ later, if this works out)

I'm wondering if there are certain places in the compartment that I
should direct the filter - are some places better than others? I've
seen pictures of filters in various places, seemingly only w/r/t
compartment space.
Has anyone made their own cold-air hood and how should that affect the
filter placement?

Or, as usual, is there anything I'm overlooking that I should consider
before jumping into this?

Thanks guys - appreciate the help, as always

Re: Intake w/ conical filter
 

You will then have extremely poor cold performance in the winter if you
see freezing temperatures. The stock air box has a heat pipe that goes
to a heat stove around one exhaust manifold. This feeds warm air to the
engine until the engine warms up.

The vehicle also needs the stock air box to pass emissions.

Some of these air boxes in YJ's were really nasty for off road. Some
have a ram air scoop just under the headlight for forced cold air
intake. It also forces water intake if you splash any up over the
bumper or if you cover the bumper with water it will hydrolock the
engine.

I know some YJ owners that have used ABS pipe on the stock air box to
aim the intake up to the top of the air filter and pointed back to stop
water intake.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

The Merg wrote:
>
> I'm looking at putting a cone filter in the '92 XJ (4.0L). I was
> thinking of hitting the junkyard for the longer 2.5L hose, then fabbing
> some sort of cold air hood - though not necessarily right away. (I'll
> do it in the YJ later, if this works out)
>
> I'm wondering if there are certain places in the compartment that I
> should direct the filter - are some places better than others? I've
> seen pictures of filters in various places, seemingly only w/r/t
> compartment space.
> Has anyone made their own cold-air hood and how should that affect the
> filter placement?
>
> Or, as usual, is there anything I'm overlooking that I should consider
> before jumping into this?
>
> Thanks guys - appreciate the help, as always

Re: Intake w/ conical filter
 

You will then have extremely poor cold performance in the winter if you
see freezing temperatures. The stock air box has a heat pipe that goes
to a heat stove around one exhaust manifold. This feeds warm air to the
engine until the engine warms up.

The vehicle also needs the stock air box to pass emissions.

Some of these air boxes in YJ's were really nasty for off road. Some
have a ram air scoop just under the headlight for forced cold air
intake. It also forces water intake if you splash any up over the
bumper or if you cover the bumper with water it will hydrolock the
engine.

I know some YJ owners that have used ABS pipe on the stock air box to
aim the intake up to the top of the air filter and pointed back to stop
water intake.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

The Merg wrote:
>
> I'm looking at putting a cone filter in the '92 XJ (4.0L). I was
> thinking of hitting the junkyard for the longer 2.5L hose, then fabbing
> some sort of cold air hood - though not necessarily right away. (I'll
> do it in the YJ later, if this works out)
>
> I'm wondering if there are certain places in the compartment that I
> should direct the filter - are some places better than others? I've
> seen pictures of filters in various places, seemingly only w/r/t
> compartment space.
> Has anyone made their own cold-air hood and how should that affect the
> filter placement?
>
> Or, as usual, is there anything I'm overlooking that I should consider
> before jumping into this?
>
> Thanks guys - appreciate the help, as always

Re: Intake w/ conical filter
 

You will then have extremely poor cold performance in the winter if you
see freezing temperatures. The stock air box has a heat pipe that goes
to a heat stove around one exhaust manifold. This feeds warm air to the
engine until the engine warms up.

The vehicle also needs the stock air box to pass emissions.

Some of these air boxes in YJ's were really nasty for off road. Some
have a ram air scoop just under the headlight for forced cold air
intake. It also forces water intake if you splash any up over the
bumper or if you cover the bumper with water it will hydrolock the
engine.

I know some YJ owners that have used ABS pipe on the stock air box to
aim the intake up to the top of the air filter and pointed back to stop
water intake.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

The Merg wrote:
>
> I'm looking at putting a cone filter in the '92 XJ (4.0L). I was
> thinking of hitting the junkyard for the longer 2.5L hose, then fabbing
> some sort of cold air hood - though not necessarily right away. (I'll
> do it in the YJ later, if this works out)
>
> I'm wondering if there are certain places in the compartment that I
> should direct the filter - are some places better than others? I've
> seen pictures of filters in various places, seemingly only w/r/t
> compartment space.
> Has anyone made their own cold-air hood and how should that affect the
> filter placement?
>
> Or, as usual, is there anything I'm overlooking that I should consider
> before jumping into this?
>
> Thanks guys - appreciate the help, as always

Re: Intake w/ conical filter
 

The Turbo City RockIt! air tube that I have directs the intake right to the
top of the valve cover. This works well with the four cylinder engine in
all types of weather. I am not so sure it would be a good idea with the six
cylinder engine because of the increased heat that that engine produces, but
the folks at Turbo City say it works well. You can look at pictures of all
the products on their web site at www.turbocity.com. The intake goes
straight up, makes a bend, and ends to place the filter over the top of the
valve cover. If you are concerned about intake air temperature you could
fabricate something like this and put a hood scoop over the top of it, like
the muscle cars in the sixties used to have. I am skeptical of ram air
claims by Pontiac and others, but if well done it looks cool.

Earle

"The Merg" <greg.mergner@gmail.com> wrote in message
news:1167889871.817717.80390@q40g2000cwq.googlegro ups.com...
> I'm looking at putting a cone filter in the '92 XJ (4.0L). I was
> thinking of hitting the junkyard for the longer 2.5L hose, then fabbing
> some sort of cold air hood - though not necessarily right away. (I'll
> do it in the YJ later, if this works out)
>
> I'm wondering if there are certain places in the compartment that I
> should direct the filter - are some places better than others? I've
> seen pictures of filters in various places, seemingly only w/r/t
> compartment space.
> Has anyone made their own cold-air hood and how should that affect the
> filter placement?
>
> Or, as usual, is there anything I'm overlooking that I should consider
> before jumping into this?
>
> Thanks guys - appreciate the help, as always
>

Re: Intake w/ conical filter
 

The Turbo City RockIt! air tube that I have directs the intake right to the
top of the valve cover. This works well with the four cylinder engine in
all types of weather. I am not so sure it would be a good idea with the six
cylinder engine because of the increased heat that that engine produces, but
the folks at Turbo City say it works well. You can look at pictures of all
the products on their web site at www.turbocity.com. The intake goes
straight up, makes a bend, and ends to place the filter over the top of the
valve cover. If you are concerned about intake air temperature you could
fabricate something like this and put a hood scoop over the top of it, like
the muscle cars in the sixties used to have. I am skeptical of ram air
claims by Pontiac and others, but if well done it looks cool.

Earle

"The Merg" <greg.mergner@gmail.com> wrote in message
news:1167889871.817717.80390@q40g2000cwq.googlegro ups.com...
> I'm looking at putting a cone filter in the '92 XJ (4.0L). I was
> thinking of hitting the junkyard for the longer 2.5L hose, then fabbing
> some sort of cold air hood - though not necessarily right away. (I'll
> do it in the YJ later, if this works out)
>
> I'm wondering if there are certain places in the compartment that I
> should direct the filter - are some places better than others? I've
> seen pictures of filters in various places, seemingly only w/r/t
> compartment space.
> Has anyone made their own cold-air hood and how should that affect the
> filter placement?
>
> Or, as usual, is there anything I'm overlooking that I should consider
> before jumping into this?
>
> Thanks guys - appreciate the help, as always
>

Re: Intake w/ conical filter
 

The Turbo City RockIt! air tube that I have directs the intake right to the
top of the valve cover. This works well with the four cylinder engine in
all types of weather. I am not so sure it would be a good idea with the six
cylinder engine because of the increased heat that that engine produces, but
the folks at Turbo City say it works well. You can look at pictures of all
the products on their web site at www.turbocity.com. The intake goes
straight up, makes a bend, and ends to place the filter over the top of the
valve cover. If you are concerned about intake air temperature you could
fabricate something like this and put a hood scoop over the top of it, like
the muscle cars in the sixties used to have. I am skeptical of ram air
claims by Pontiac and others, but if well done it looks cool.

Earle

"The Merg" <greg.mergner@gmail.com> wrote in message
news:1167889871.817717.80390@q40g2000cwq.googlegro ups.com...
> I'm looking at putting a cone filter in the '92 XJ (4.0L). I was
> thinking of hitting the junkyard for the longer 2.5L hose, then fabbing
> some sort of cold air hood - though not necessarily right away. (I'll
> do it in the YJ later, if this works out)
>
> I'm wondering if there are certain places in the compartment that I
> should direct the filter - are some places better than others? I've
> seen pictures of filters in various places, seemingly only w/r/t
> compartment space.
> Has anyone made their own cold-air hood and how should that affect the
> filter placement?
>
> Or, as usual, is there anything I'm overlooking that I should consider
> before jumping into this?
>
> Thanks guys - appreciate the help, as always
>

Re: Intake w/ conical filter
 

Scratch all this - Billy Ray showed me the error of my ways:
http://s112.photobucket.com/albums/n...ilter%20Tests/



Mike Romain wrote:
> You will then have extremely poor cold performance in the winter if you
> see freezing temperatures. The stock air box has a heat pipe that goes
> to a heat stove around one exhaust manifold. This feeds warm air to the
> engine until the engine warms up.
>
> The vehicle also needs the stock air box to pass emissions.
>
> Some of these air boxes in YJ's were really nasty for off road. Some
> have a ram air scoop just under the headlight for forced cold air
> intake. It also forces water intake if you splash any up over the
> bumper or if you cover the bumper with water it will hydrolock the
> engine.
>
> I know some YJ owners that have used ABS pipe on the stock air box to
> aim the intake up to the top of the air filter and pointed back to stop
> water intake.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> The Merg wrote:
> >
> > I'm looking at putting a cone filter in the '92 XJ (4.0L). I was
> > thinking of hitting the junkyard for the longer 2.5L hose, then fabbing
> > some sort of cold air hood - though not necessarily right away. (I'll
> > do it in the YJ later, if this works out)
> >
> > I'm wondering if there are certain places in the compartment that I
> > should direct the filter - are some places better than others? I've
> > seen pictures of filters in various places, seemingly only w/r/t
> > compartment space.
> > Has anyone made their own cold-air hood and how should that affect the
> > filter placement?
> >
> > Or, as usual, is there anything I'm overlooking that I should consider
> > before jumping into this?
> >
> > Thanks guys - appreciate the help, as always

Re: Intake w/ conical filter
 

Scratch all this - Billy Ray showed me the error of my ways:
http://s112.photobucket.com/albums/n...ilter%20Tests/



Mike Romain wrote:
> You will then have extremely poor cold performance in the winter if you
> see freezing temperatures. The stock air box has a heat pipe that goes
> to a heat stove around one exhaust manifold. This feeds warm air to the
> engine until the engine warms up.
>
> The vehicle also needs the stock air box to pass emissions.
>
> Some of these air boxes in YJ's were really nasty for off road. Some
> have a ram air scoop just under the headlight for forced cold air
> intake. It also forces water intake if you splash any up over the
> bumper or if you cover the bumper with water it will hydrolock the
> engine.
>
> I know some YJ owners that have used ABS pipe on the stock air box to
> aim the intake up to the top of the air filter and pointed back to stop
> water intake.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> The Merg wrote:
> >
> > I'm looking at putting a cone filter in the '92 XJ (4.0L). I was
> > thinking of hitting the junkyard for the longer 2.5L hose, then fabbing
> > some sort of cold air hood - though not necessarily right away. (I'll
> > do it in the YJ later, if this works out)
> >
> > I'm wondering if there are certain places in the compartment that I
> > should direct the filter - are some places better than others? I've
> > seen pictures of filters in various places, seemingly only w/r/t
> > compartment space.
> > Has anyone made their own cold-air hood and how should that affect the
> > filter placement?
> >
> > Or, as usual, is there anything I'm overlooking that I should consider
> > before jumping into this?
> >
> > Thanks guys - appreciate the help, as always

Re: Intake w/ conical filter
 

Scratch all this - Billy Ray showed me the error of my ways:
http://s112.photobucket.com/albums/n...ilter%20Tests/



Mike Romain wrote:
> You will then have extremely poor cold performance in the winter if you
> see freezing temperatures. The stock air box has a heat pipe that goes
> to a heat stove around one exhaust manifold. This feeds warm air to the
> engine until the engine warms up.
>
> The vehicle also needs the stock air box to pass emissions.
>
> Some of these air boxes in YJ's were really nasty for off road. Some
> have a ram air scoop just under the headlight for forced cold air
> intake. It also forces water intake if you splash any up over the
> bumper or if you cover the bumper with water it will hydrolock the
> engine.
>
> I know some YJ owners that have used ABS pipe on the stock air box to
> aim the intake up to the top of the air filter and pointed back to stop
> water intake.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> The Merg wrote:
> >
> > I'm looking at putting a cone filter in the '92 XJ (4.0L). I was
> > thinking of hitting the junkyard for the longer 2.5L hose, then fabbing
> > some sort of cold air hood - though not necessarily right away. (I'll
> > do it in the YJ later, if this works out)
> >
> > I'm wondering if there are certain places in the compartment that I
> > should direct the filter - are some places better than others? I've
> > seen pictures of filters in various places, seemingly only w/r/t
> > compartment space.
> > Has anyone made their own cold-air hood and how should that affect the
> > filter placement?
> >
> > Or, as usual, is there anything I'm overlooking that I should consider
> > before jumping into this?
> >
> > Thanks guys - appreciate the help, as always