stock air cleaner to aftermarket
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Supreme Member

Joined: Sep 2003
Posts: 1,408
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From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
stock air cleaner to aftermarket
Well i recently obtained my car, an 82 z28 4 barrel, as everyone here knows the underhood is crowded.
So im thinking about aftermarket air cleaner assembly. Well what all is involved in going from the factory single snorkel assembly to something that looks good and frees up some room?
Can somebody gives me a run through on what all is involved and any pro's and cons, of going this way?
I like this look...its not too flashy, im thinking of going with the lid without the logo, for a more subtle look.
HELP ME GET THERE
So im thinking about aftermarket air cleaner assembly. Well what all is involved in going from the factory single snorkel assembly to something that looks good and frees up some room?
Can somebody gives me a run through on what all is involved and any pro's and cons, of going this way?
I like this look...its not too flashy, im thinking of going with the lid without the logo, for a more subtle look.
HELP ME GET THERE
Thread Starter
Supreme Member

Joined: Sep 2003
Posts: 1,408
Likes: 2
From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
well i understand that there cant be too much to it BUT...
what happens to
A) the line that hooks to the bottom of the air cleaner from the carb
B)the thermac (?) fitting that goes from the snorkel?
C)the hose on the passenger side that goes into the air cleaner
D)...and the rest of that crap?
what happens to
A) the line that hooks to the bottom of the air cleaner from the carb
B)the thermac (?) fitting that goes from the snorkel?
C)the hose on the passenger side that goes into the air cleaner
D)...and the rest of that crap?
Supreme Member

Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by blyth18md
well i understand that there cant be too much to it BUT...
what happens to
A) the line that hooks to the bottom of the air cleaner from the carb
B)the thermac (?) fitting that goes from the snorkel?
C)the hose on the passenger side that goes into the air cleaner
D)...and the rest of that crap?
well i understand that there cant be too much to it BUT...
what happens to
A) the line that hooks to the bottom of the air cleaner from the carb
B)the thermac (?) fitting that goes from the snorkel?
C)the hose on the passenger side that goes into the air cleaner
D)...and the rest of that crap?
A) goes to bottom of new air cleaner
B) if you mean that butterfly valve thingy, junk it.
C) junk it
D) such as?
theres a how to artical on the main page.. called TBI open element swap or somthing like that.
if you have a external coil HEI, you MAY have to move the coil, or bend the lower part of the cleaner to clear it.
if it touches the coil it will short it and possibly catch teh car on fire... be sure theres space...
Thread Starter
Supreme Member

Joined: Sep 2003
Posts: 1,408
Likes: 2
From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
ok if the "butterfly valve thingy" gets junked, what about the hole, where the flexible line from the bottom of it goes?
Is my coil the same coil that is in the top of my distributor cap?, does that mean its not external sinces its inside of the cover on top of the distro. cap? and i dont have to worry about the lid contacting it?
I also dont think my car has an IAT sensor connected to the air cleaner base, any input?
so i have to buy a breather...or have a tube just hanging around...any suggestions on choosing an aftermarket breather?
anything i missed?
Is my coil the same coil that is in the top of my distributor cap?, does that mean its not external sinces its inside of the cover on top of the distro. cap? and i dont have to worry about the lid contacting it?
I also dont think my car has an IAT sensor connected to the air cleaner base, any input?
so i have to buy a breather...or have a tube just hanging around...any suggestions on choosing an aftermarket breather?
anything i missed?
Supreme Member

Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by blyth18md
ok if the "butterfly valve thingy" gets junked, what about the hole, where the flexible line from the bottom of it goes?
ok if the "butterfly valve thingy" gets junked, what about the hole, where the flexible line from the bottom of it goes?
Originally posted by blyth18md
Is my coil the same coil that is in the top of my distributor cap?, does that mean its not external sinces its inside of the cover on top of the distro. cap? and i dont have to worry about the lid contacting it?
Is my coil the same coil that is in the top of my distributor cap?, does that mean its not external sinces its inside of the cover on top of the distro. cap? and i dont have to worry about the lid contacting it?
no.. the coil is in the cap... no worried with that setup.
Originally posted by blyth18md
I also dont think my car has an IAT sensor connected to the air cleaner base, any input?
I also dont think my car has an IAT sensor connected to the air cleaner base, any input?
if theres no sensor, then no worries... thats usually a FI thing anyway.
Originally posted by blyth18md
so i have to buy a breather...or have a tube just hanging around...any suggestions on choosing an aftermarket breather?
so i have to buy a breather...or have a tube just hanging around...any suggestions on choosing an aftermarket breather?
Originally posted by blyth18md
anything i missed?
anything i missed?
Joined: Apr 2000
Posts: 1,536
Likes: 322
From: South Windsor, CT
Car: '89 GTA
Engine: ZZ6TPI
Transmission: T56
Axle/Gears: Borg Warner 3.70:1
Also, cap the vacuum port on base of the the carb. It's the vacuum line that goes from the carb to the stock air cleaner for the Thermac system.
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Thread Starter
Supreme Member

Joined: Sep 2003
Posts: 1,408
Likes: 2
From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
well then, i think im going to go ahead and order this thing. Im going with the logo'd one, there other series are too much chrome for my taste, and when i get to valve covers, maybe i'll get them without the signature...thanks for the help.
can i buy a breather locally for inexpensive? are there different sizes? or should i just order it with my assembly?
can i buy a breather locally for inexpensive? are there different sizes? or should i just order it with my assembly?
Supreme Member

Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by blyth18md
well then, i think im going to go ahead and order this thing. Im going with the logo'd one, there other series are too much chrome for my taste, and when i get to valve covers, maybe i'll get them without the signature...thanks for the help.
can i buy a breather locally for inexpensive? are there different sizes? or should i just order it with my assembly?
well then, i think im going to go ahead and order this thing. Im going with the logo'd one, there other series are too much chrome for my taste, and when i get to valve covers, maybe i'll get them without the signature...thanks for the help.
can i buy a breather locally for inexpensive? are there different sizes? or should i just order it with my assembly?
you can get a cheapie one in the chrome stuff section in the local auto parts store.... you know the one where all the cheezy chrome "performance" parts are...
Supreme Member

Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
any push on breather will work... and by cheap i ment the price... not the part..
you can look in summit and pretty much anywhere...
you can look in summit and pretty much anywhere...
Supreme Member

Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by blyth18md
not to nag or anything, but is there a certain size breather?
not to nag or anything, but is there a certain size breather?
so if you look for a "regular" push on breather, it'll fit..... remember, its being pushed into a rubber grommet, so theres a good deal of play envolved...
Thread Starter
Supreme Member

Joined: Sep 2003
Posts: 1,408
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From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
well in that case. consider the cleaner assembly ordered, and as soon as it gets here i'll probably have more questions. thanks for the help.
how much of a difference in sound will this make? extremly noticable, or only able to hear if you know what you are looking for?
P.S. are k&n filters worth it?
how much of a difference in sound will this make? extremly noticable, or only able to hear if you know what you are looking for?
P.S. are k&n filters worth it?
Supreme Member

Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
when you floor it, you'll hear the air getting sucked in.
how loud it is depends on the motor.... a mild 305 may not be too noticable.... my 400 makes a loud sucking sound when you first mash into the secondarys... i think it sound cool.
how loud it is depends on the motor.... a mild 305 may not be too noticable.... my 400 makes a loud sucking sound when you first mash into the secondarys... i think it sound cool.
Supreme Member

Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
oh, and IMO no.
however i wouldnt turn it down if someone gave it to me... hehe.
the price for starters is unreasonable IMO.... i can get over 5 filters for the cost of one $50 K&N.... when the extra oil is out of a K&N it may flow marginally better then a new paper filter, but.... what about when its half dirty?
well when its half dirty with a paper filter, you buy a new one for a couple bucks... i doubt yuo want to go with a diry looking K&N, so off you go to get a "filtercharger" kit..... and this kit costs as much as a paper filter......
it doesnt save you money.. it doesnt make anymore power... it does look cool though....
however i wouldnt turn it down if someone gave it to me... hehe.
the price for starters is unreasonable IMO.... i can get over 5 filters for the cost of one $50 K&N.... when the extra oil is out of a K&N it may flow marginally better then a new paper filter, but.... what about when its half dirty?
well when its half dirty with a paper filter, you buy a new one for a couple bucks... i doubt yuo want to go with a diry looking K&N, so off you go to get a "filtercharger" kit..... and this kit costs as much as a paper filter......
it doesnt save you money.. it doesnt make anymore power... it does look cool though....
Thread Starter
Supreme Member

Joined: Sep 2003
Posts: 1,408
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From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
hah! mild, thats a compliment, and an overstatment. TAME would be a better definition, but i gotta start somewhere. I figure first start cleaning things up and get rid of all this garbage taking up room, and if i can make it look better while doing it, all the better.
once it warms up again, i think im going to ditch all the A/C junk...then all the AIR crap...and once i have room to work..then i'll work towards "mild"
thanks for the help
once it warms up again, i think im going to ditch all the A/C junk...then all the AIR crap...and once i have room to work..then i'll work towards "mild"
thanks for the help
Thread Starter
Supreme Member

Joined: Sep 2003
Posts: 1,408
Likes: 2
From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
...so do they make red(orange) paper filters?..if not why isnt someone out there making a killing on red filters? lol
Thread Starter
Supreme Member

Joined: Sep 2003
Posts: 1,408
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From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
ok so i got my air cleaner, but i havent put it in yet few more questions to reassure myself.
1) the little foam filter inside of the current air cleaner set up is the breather filter, and you follow the old hose to where the new breather goes right? the "push in" breather?
2) the really small hose that goes from the bottom of the carb is a vacuum line for the thermac? and it just gets capped off?
3) the stove pipe that connects to the bottom of the thermac and to the valve cover. does it get a capped off or do i need some kind of vent , or breather there too?
these are the only things attached to the air cleaner assembly right?
the tiny hose, im guessing the vacuum line.
the stove pipe, which goes from valve cover to thermac.
and the foam breather filter thing.
1) the little foam filter inside of the current air cleaner set up is the breather filter, and you follow the old hose to where the new breather goes right? the "push in" breather?
2) the really small hose that goes from the bottom of the carb is a vacuum line for the thermac? and it just gets capped off?
3) the stove pipe that connects to the bottom of the thermac and to the valve cover. does it get a capped off or do i need some kind of vent , or breather there too?
these are the only things attached to the air cleaner assembly right?
the tiny hose, im guessing the vacuum line.
the stove pipe, which goes from valve cover to thermac.
and the foam breather filter thing.
Supreme Member

Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by blyth18md
...so do they make red(orange) paper filters?..if not why isnt someone out there making a killing on red filters? lol
...so do they make red(orange) paper filters?..if not why isnt someone out there making a killing on red filters? lol
accell dyes theirs blue...
im pretty sure summit now sells theres in every color... heck, i bet you can mix the red and blue ones and make purple if you wanted to.
Originally posted by blyth18md
1) the little foam filter inside of the current air cleaner set up is the breather filter, and you follow the old hose to where the new breather goes right? the "push in" breather?
1) the little foam filter inside of the current air cleaner set up is the breather filter, and you follow the old hose to where the new breather goes right? the "push in" breather?
Originally posted by blyth18md
2) the really small hose that goes from the bottom of the carb is a vacuum line for the thermac? and it just gets capped off?
2) the really small hose that goes from the bottom of the carb is a vacuum line for the thermac? and it just gets capped off?
Originally posted by blyth18md
3) the stove pipe that connects to the bottom of the thermac and to the valve cover. does it get a capped off or do i need some kind of vent , or breather there too?
3) the stove pipe that connects to the bottom of the thermac and to the valve cover. does it get a capped off or do i need some kind of vent , or breather there too?
Originally posted by blyth18md
these are the only things attached to the air cleaner assembly right?
the tiny hose, im guessing the vacuum line.
the stove pipe, which goes from valve cover to thermac.
and the foam breather filter thing.
these are the only things attached to the air cleaner assembly right?
the tiny hose, im guessing the vacuum line.
the stove pipe, which goes from valve cover to thermac.
and the foam breather filter thing.
if it was a FI car, it would also have a air temp sensor, but its not, so you dont have to worry about that.
Thread Starter
Supreme Member

Joined: Sep 2003
Posts: 1,408
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From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
yeah the only thing that had me slightly confused was the "metal flexi" tube, i thought it mighta lefta hole there if there wasnt anything to go over it, but since its only a hole in the shield..thats no worry
and the vacuum line just gets capped, right?
so i guess now i just have to wait for it to stop raining
and the vacuum line just gets capped, right?
so i guess now i just have to wait for it to stop raining
Supreme Member

Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by blyth18md
yeah the only thing that had me slightly confused was the "metal flexi" tube, i thought it mighta lefta hole there if there wasnt anything to go over it, but since its only a hole in the shield..thats no worry
and the vacuum line just gets capped, right?
so i guess now i just have to wait for it to stop raining
yeah the only thing that had me slightly confused was the "metal flexi" tube, i thought it mighta lefta hole there if there wasnt anything to go over it, but since its only a hole in the shield..thats no worry
and the vacuum line just gets capped, right?
so i guess now i just have to wait for it to stop raining
and rain sucks.
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