2000 Legacy Intake vs. 2002 RS Intake

mike270 · 01-27-2002, 03:45 PM

My dad has a 2000 Legacy with stock everything. Why does his intake go into the front, taking air by the radiator while my 2002 RS gets air from the engine compartment??

Thanks

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traskw · 01-28-2002, 02:16 AM

I noticed the same thing on my 01 Legacy compared to my 97. It actually takes air directly from the front of the car, a much better set-up then the previous Legacy's and Impreza's. I would have figured they would have done the same for the 2002 RS. Of note my 2001 shares a lot of parts with the 2002 Impreza. The legacy is the first model to be updated each go around, so we saw some things back in 2000 that would be used on the 2002 Impreza, including the WRX. That explains why my Legacy will only fit a 2002 WRX shifter.

traskw · 01-28-2002, 07:22 PM

Here is what we are talking about, please excuse the winter salt.

traskw · 01-29-2002, 04:06 AM

Bump....

I have to say that this looks like Subaru's best attempt yet at getting cold air into the intake on an N/A vehicle. Why they didn't do it on the 2002 RS beats me. Maybe space restrictions. The 2000-2002 Legacy is 11 inches longer than the 2002 Impreza.

b_tapper · 01-29-2002, 12:08 PM

looks like that would fit...but they used the same intake of the last gen RS...found a very rare pic of my stock 02 engine bay tehe

traskw · 01-29-2002, 03:33 PM

Quote:

Originally posted by b_tapper
looks like that would fit...but they used the same intake of the last gen RS...found a very rare pic of my stock 02 engine bay tehe

Not to my knowledge they didn't, they still used the fender well. I have not seen it on any other Subaru N/A car.

traskw · 01-29-2002, 03:35 PM

I think I miss read your post. You meant that they used the previous generation RS intake on the current RS. Sorry.

tonytiger · 01-30-2002, 07:09 AM

Wow, that's nice setup on the 2000 Legacy. I've been planning to make my on, like it is.
Wonder if that has some ram air effect?

I can't figure aout of the picture does the air go through the radiator. If it does that's bad since the radiator tends to be relatively hot some times. Which of course as an opposite IC effect. Not good at all.

Heat shield the intake and replace the back of the plastic intake pipe with aluminium or wahtever to take the silencer off .My legacy as got dame kind of silencer on the way to the throttle body.

Another thing is the intakes length and how it effects on the torque curve. Modifying the lenght of the intake pipe alters the power curve slightly (if at all). The pipe resonates at differnt frequencys (RPMs).

However, that's very nice.

tony

traskw · 01-30-2002, 12:08 PM

The picture is of my 2001, but any 2000 on Legacy will have it. It comes directly to the front of the car getting air through the grill. The radiator is under and slightly behind it (as seen in the pic). It pulls air directly from the outside as you can see from the salt. If you direct piped it and removed the silencer I believe you may create problems with getting moisture in the intake.

traskw · 01-30-2002, 12:12 PM

As far as aluminum piping, aluminum conducts heat very well and would not be an ideal choice. Given that it is a true cold air intake the aluminum pipe would only conduct heat from the engine. Plastics do not conduct heat very well, but they do insulate well, that is why silicone is popular.

Jason · 01-30-2002, 05:09 PM

something like this??

http://jprova.co.jp/parts/i2-7.html

jerome02rs · 01-30-2002, 09:33 PM

Those carbon ducts are pretty cool- too bad they're about $430 for the pair!
How much is the stock plastic part?

Jerome

Mike2000GT · 02-01-2002, 10:18 AM

Traskw is on the right track, but there are a couple of things that FHI did to reduce the effect.

1. The intake is behind the grill, but not directly behind. It sits a little higher in the engine bay, so it is not a true 'ram air' setup.

2. On the underside of the hood is a stupid little piece of plastic that sits directly infront of the intake opening. I'm assuming this is a water/bug deflector, and is easily removed (two plastic screws)

3. The appendages off the main intake line for sound deading. You can see the first one here, to the left of the plug wire box (coil pack?). That ugly black plastic box is the first one. The second one looks like a tumor and is just under the last bend before the filter box.

Both of these can be minimized by taping off the openings in the main intake line. (dun dun dunnnnn... duck tape to the rescue!)

IMHO, the best way to do an intake would be to do a more straight and larger bore tube with an inline PRM (to eliminate the panel filter) running from the intake cone to the TB. But thats just my 0.02. The taping mod makes little noticeable difference. The car is not noticably louder than before... but it does look to be a better setup than the GC8 fender intake.

Mike2000GT

traskw · 02-01-2002, 01:24 PM

There isn't the bug deflector on mine, but it does sit just above the top grill inlet as you describe. Still, a heck of a lot better than taking the air from the engine bay itself.

01-27-2002, 03:45 PM	#1
mike270 Scooby Specialist Member#: 12863 Join Date: Nov 2001 Chapter/Region: MWSOC Vehicle: 2002 2.5RS	2000 Legacy Intake vs. 2002 RS Intake My dad has a 2000 Legacy with stock everything. Why does his intake go into the front, taking air by the radiator while my 2002 RS gets air from the engine compartment?? Thanks * Registered users of the site do not see these ads.

01-28-2002, 07:22 PM	#3
traskw Scooby Newbie Member#: 9604 Join Date: Aug 2001 Chapter/Region: NESIC Location: Boyertown, PA; Hampton, CT Vehicle: 2005 LGT '94SS MR2 AtlanticBlue, Red, Silver	Here is what we are talking about, please excuse the winter salt. Last edited by traskw; 03-05-2002 at 08:30 PM.

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01-28-2002, 02:16 AM	#2
traskw Scooby Newbie Member#: 9604 Join Date: Aug 2001 Chapter/Region: NESIC Location: Boyertown, PA; Hampton, CT Vehicle: 2005 LGT '94SS MR2 AtlanticBlue, Red, Silver	I noticed the same thing on my 01 Legacy compared to my 97. It actually takes air directly from the front of the car, a much better set-up then the previous Legacy's and Impreza's. I would have figured they would have done the same for the 2002 RS. Of note my 2001 shares a lot of parts with the 2002 Impreza. The legacy is the first model to be updated each go around, so we saw some things back in 2000 that would be used on the 2002 Impreza, including the WRX. That explains why my Legacy will only fit a 2002 WRX shifter.

01-29-2002, 04:06 AM	#4
traskw Scooby Newbie Member#: 9604 Join Date: Aug 2001 Chapter/Region: NESIC Location: Boyertown, PA; Hampton, CT Vehicle: 2005 LGT '94SS MR2 AtlanticBlue, Red, Silver	Bump.... I have to say that this looks like Subaru's best attempt yet at getting cold air into the intake on an N/A vehicle. Why they didn't do it on the 2002 RS beats me. Maybe space restrictions. The 2000-2002 Legacy is 11 inches longer than the 2002 Impreza.

01-29-2002, 12:08 PM	#5
b_tapper Scooby Guru Member#: 5291 Join Date: Mar 2001 Location: pittsburgh,pa Vehicle: '08 Scion xB Nautical Blue Metallic	looks like that would fit...but they used the same intake of the last gen RS...found a very rare pic of my stock 02 engine bay tehe

01-29-2002, 03:35 PM	#7
traskw Scooby Newbie Member#: 9604 Join Date: Aug 2001 Chapter/Region: NESIC Location: Boyertown, PA; Hampton, CT Vehicle: 2005 LGT '94SS MR2 AtlanticBlue, Red, Silver	I think I miss read your post. You meant that they used the previous generation RS intake on the current RS. Sorry.

01-30-2002, 07:09 AM	#8
tonytiger Scooby Newbie Member#: 3844 Join Date: Jan 2001 Location: Helsinki, Finland Vehicle: 1993 Legacy 1.8 White	Wow, that's nice setup on the 2000 Legacy. I've been planning to make my on, like it is. Wonder if that has some ram air effect? I can't figure aout of the picture does the air go through the radiator. If it does that's bad since the radiator tends to be relatively hot some times. Which of course as an opposite IC effect. Not good at all. Heat shield the intake and replace the back of the plastic intake pipe with aluminium or wahtever to take the silencer off .My legacy as got dame kind of silencer on the way to the throttle body. Another thing is the intakes length and how it effects on the torque curve. Modifying the lenght of the intake pipe alters the power curve slightly (if at all). The pipe resonates at differnt frequencys (RPMs). However, that's very nice. tony

01-30-2002, 12:08 PM	#9
traskw Scooby Newbie Member#: 9604 Join Date: Aug 2001 Chapter/Region: NESIC Location: Boyertown, PA; Hampton, CT Vehicle: 2005 LGT '94SS MR2 AtlanticBlue, Red, Silver	The picture is of my 2001, but any 2000 on Legacy will have it. It comes directly to the front of the car getting air through the grill. The radiator is under and slightly behind it (as seen in the pic). It pulls air directly from the outside as you can see from the salt. If you direct piped it and removed the silencer I believe you may create problems with getting moisture in the intake.

01-30-2002, 12:12 PM	#10
traskw Scooby Newbie Member#: 9604 Join Date: Aug 2001 Chapter/Region: NESIC Location: Boyertown, PA; Hampton, CT Vehicle: 2005 LGT '94SS MR2 AtlanticBlue, Red, Silver	As far as aluminum piping, aluminum conducts heat very well and would not be an ideal choice. Given that it is a true cold air intake the aluminum pipe would only conduct heat from the engine. Plastics do not conduct heat very well, but they do insulate well, that is why silicone is popular.

01-30-2002, 05:09 PM	#11
Jason Scooby Specialist Member#: 105 Join Date: Jul 1999 Location: Fremont, CA 94538 Vehicle: 2000 Legacy GT Ltd WHT	something like this?? http://jprova.co.jp/parts/i2-7.html

01-30-2002, 09:33 PM	#12
jerome02rs Scooby Newbie Member#: 6347 Join Date: May 2001 Location: Colorado Vehicle: 2002 Impreza 2.5RS Platinum Silver	Those carbon ducts are pretty cool- too bad they're about $430 for the pair! How much is the stock plastic part? Jerome

02-01-2002, 10:18 AM	#13
Mike2000GT Scooby Specialist Member#: 2709 Join Date: Oct 2000 Chapter/Region: MAIC Location: Media, PA Vehicle: 2006 WRX Wagon SGM	Traskw is on the right track, but there are a couple of things that FHI did to reduce the effect. 1. The intake is behind the grill, but not directly behind. It sits a little higher in the engine bay, so it is not a true 'ram air' setup. 2. On the underside of the hood is a stupid little piece of plastic that sits directly infront of the intake opening. I'm assuming this is a water/bug deflector, and is easily removed (two plastic screws) 3. The appendages off the main intake line for sound deading. You can see the first one here, to the left of the plug wire box (coil pack?). That ugly black plastic box is the first one. The second one looks like a tumor and is just under the last bend before the filter box. Both of these can be minimized by taping off the openings in the main intake line. (dun dun dunnnnn... duck tape to the rescue!) IMHO, the best way to do an intake would be to do a more straight and larger bore tube with an inline PRM (to eliminate the panel filter) running from the intake cone to the TB. But thats just my 0.02. The taping mod makes little noticeable difference. The car is not noticably louder than before... but it does look to be a better setup than the GC8 fender intake. Mike2000GT

02-01-2002, 01:24 PM	#14
traskw Scooby Newbie Member#: 9604 Join Date: Aug 2001 Chapter/Region: NESIC Location: Boyertown, PA; Hampton, CT Vehicle: 2005 LGT '94SS MR2 AtlanticBlue, Red, Silver	There isn't the bug deflector on mine, but it does sit just above the top grill inlet as you describe. Still, a heck of a lot better than taking the air from the engine bay itself.