Matt Macchiarolo

Mike, didn't heat pipes go out with electronic fuel injection?

"Mike Romain" <romainm@sympatico.ca> wrote in message
news:459D1C6E.8CFBEA96@sympatico.ca...
> 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

The Merg

> Mike, didn't heat pipes go out with electronic fuel injection?


This is a '92 with the 4.0L, so it is fuel injected - even if it needs
a heat pipe, etc, I still think I can modify the hose to accept any
necessary hoses.

>there are other conical filters other than K&N, including some that don't require the oil.
>Supposedly (I haven't found any tests on the web yet) these non-oiled filters work better than >the K&N oiled filters.

AEM Brute Force Intake Systems advertises as not needing oil. It's
also the only one I've ever seen that offers one an intake system for
the 2.5L YJ. I just assumed that not needing oil just meant easier
maintenance.
http://www.4wd.com/Jeep-Parts-Tops-a...RT218304C.aspx

The Merg

> Mike, didn't heat pipes go out with electronic fuel injection?


This is a '92 with the 4.0L, so it is fuel injected - even if it needs
a heat pipe, etc, I still think I can modify the hose to accept any
necessary hoses.

>there are other conical filters other than K&N, including some that don't require the oil.
>Supposedly (I haven't found any tests on the web yet) these non-oiled filters work better than >the K&N oiled filters.

AEM Brute Force Intake Systems advertises as not needing oil. It's
also the only one I've ever seen that offers one an intake system for
the 2.5L YJ. I just assumed that not needing oil just meant easier
maintenance.
http://www.4wd.com/Jeep-Parts-Tops-a...RT218304C.aspx

The Merg

> Mike, didn't heat pipes go out with electronic fuel injection?


This is a '92 with the 4.0L, so it is fuel injected - even if it needs
a heat pipe, etc, I still think I can modify the hose to accept any
necessary hoses.

>there are other conical filters other than K&N, including some that don't require the oil.
>Supposedly (I haven't found any tests on the web yet) these non-oiled filters work better than >the K&N oiled filters.

AEM Brute Force Intake Systems advertises as not needing oil. It's
also the only one I've ever seen that offers one an intake system for
the 2.5L YJ. I just assumed that not needing oil just meant easier
maintenance.
http://www.4wd.com/Jeep-Parts-Tops-a...RT218304C.aspx

Mike Romain

My 88 Cherokee 4.0 has one... I thought they all did.

Mike

Matt Macchiarolo wrote:
>
> Mike, didn't heat pipes go out with electronic fuel injection?
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:459D1C6E.8CFBEA96@sympatico.ca...
> > 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

Mike Romain

My 88 Cherokee 4.0 has one... I thought they all did.

Mike

Matt Macchiarolo wrote:
>
> Mike, didn't heat pipes go out with electronic fuel injection?
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:459D1C6E.8CFBEA96@sympatico.ca...
> > 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

Mike Romain

My 88 Cherokee 4.0 has one... I thought they all did.

Mike

Matt Macchiarolo wrote:
>
> Mike, didn't heat pipes go out with electronic fuel injection?
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:459D1C6E.8CFBEA96@sympatico.ca...
> > 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

The Merg

This is an interesting take on the cold air intake:

http://rides.webshots.com/album/164442423RJbmfB

The Merg

This is an interesting take on the cold air intake:

http://rides.webshots.com/album/164442423RJbmfB

The Merg

This is an interesting take on the cold air intake:

http://rides.webshots.com/album/164442423RJbmfB