dual snorkle or open element
Supreme Member
Joined: Jun 2001
Posts: 3,238
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From: Calgary, Alberta, Republic of Western Canada
Car: 1986 Sport Coupé
Engine: 305-4v
Transmission: 700R4 and TransGo2
Dual snorkel because it draws cool air from outside the car. Worth 1/4 second in the 1/4 mile on a 16 second 305 3rd gen 
Finding one is a different question. Kinda hard anymore. This guy sometimes has them. But make sure to get the complete outfit, including snorkles and ducts for both sides. The individual parts are next to impossible to find.
http://members.***.net/iroczdave1/

Finding one is a different question. Kinda hard anymore. This guy sometimes has them. But make sure to get the complete outfit, including snorkles and ducts for both sides. The individual parts are next to impossible to find.
http://members.***.net/iroczdave1/
Joined: Feb 2001
Posts: 13,756
Likes: 560
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
You cannot go wrong with either. You will have fitment problems with late model 3rd gen TBI cars that re equipt with AC. You cannot be the price and performance of a $20 open element.
Supreme Member
Joined: Jun 2001
Posts: 3,238
Likes: 4
From: Calgary, Alberta, Republic of Western Canada
Car: 1986 Sport Coupé
Engine: 305-4v
Transmission: 700R4 and TransGo2
Originally posted by ShiftyCapone
You cannot go wrong with either. You will have fitment problems with late model 3rd gen TBI cars that re equipt with AC. You cannot be the price and performance of a $20 open element.
You cannot go wrong with either. You will have fitment problems with late model 3rd gen TBI cars that re equipt with AC. You cannot be the price and performance of a $20 open element.
But I see your car is a TPI model. You are seeking the dual snorkel setup for a QJet 4 barrel, aren't you?
Junior Member
Joined: Dec 2001
Posts: 27
Likes: 0
From: Mililani, HI
Car: 1978 Caprice/Impala
Engine: 472 Caddy
Transmission: TH400
You can make a dual snorkle air filter pretty cheap, just a little junkyard hunting, then cutting and screwing. There's a good tech article on this site about it, also, I made one for my 78 Caprice coupe, you can see the writeup on my page if you're interested:
http://home.earthlink.net/~guy1139/bigcoupe.htm
http://home.earthlink.net/~guy1139/bigcoupe.htm
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yea you could save that DS and clean it up have it chrome plated and itll look real nice, but you will have a difficult time finding the ducts and hoses if you dont already have them, theres a fella on TBI board whos got a super cool chromed DS, according to what hes said you might end up paying a small fortune to get the ducts and hoses since no one carrys the oem pieces.
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Joined: Oct 2002
Posts: 9,067
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From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Yea, dual snorkel is the best IMO. The ducts are hard to find though, but there is a company called Ram Air or something that does sell a set. I can't find the URL though.
Member
Joined: Oct 2001
Posts: 264
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From: Webster, MA
Car: 1982 Camaro Z28
Engine: Self-built 350
Transmission: Pro-Built 700r4 w/2800 Vigilante
Axle/Gears: Eaton 3.73 w/Moser axles
Originally posted by Air_Adam
Yea, dual snorkel is the best IMO. The ducts are hard to find though, but there is a company called Ram Air or something that does sell a set. I can't find the URL though.
Yea, dual snorkel is the best IMO. The ducts are hard to find though, but there is a company called Ram Air or something that does sell a set. I can't find the URL though.
Junior Member
Joined: Dec 2001
Posts: 27
Likes: 0
From: Mililani, HI
Car: 1978 Caprice/Impala
Engine: 472 Caddy
Transmission: TH400
Dude, my set up cost like $20 in junkyard parts, the ducts for an f-body are hard to find, I ended up buying several different ducts to try out and cobbling a few together to make the snorkle seen on the driver's side of the car. The assembly on the passenger side is stock for the B-bodies. I just made about 4 trips to the junkyard and whenever I ws looking for something else for my car, I'd also check out ducts. If you want to bolt on and finish in a weekend, then www.ramairbox.com is probably the way to go, but making your own is fun, easy, and looks more stock, if you're into that.
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Joined: Sep 2001
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From: Flowery Branch, GA
Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
Axle/Gears: 3.42
Supreme Member
Joined: Jun 2001
Posts: 3,238
Likes: 4
From: Calgary, Alberta, Republic of Western Canada
Car: 1986 Sport Coupé
Engine: 305-4v
Transmission: 700R4 and TransGo2
Originally posted by guy1138
Dude, my set up cost like $20 in junkyard parts, the ducts for an f-body are hard to find, I ended up buying several different ducts to try out and cobbling a few together to make the snorkle seen on the driver's side of the car. The assembly on the passenger side is stock for the B-bodies. I just made about 4 trips to the junkyard and whenever I ws looking for something else for my car, I'd also check out ducts. If you want to bolt on and finish in a weekend, then www.ramairbox.com is probably the way to go, but making your own is fun, easy, and looks more stock, if you're into that.
Dude, my set up cost like $20 in junkyard parts, the ducts for an f-body are hard to find, I ended up buying several different ducts to try out and cobbling a few together to make the snorkle seen on the driver's side of the car. The assembly on the passenger side is stock for the B-bodies. I just made about 4 trips to the junkyard and whenever I ws looking for something else for my car, I'd also check out ducts. If you want to bolt on and finish in a weekend, then www.ramairbox.com is probably the way to go, but making your own is fun, easy, and looks more stock, if you're into that.
Please do a write up of it listing all the parts and which cars you took them from. Then submit it to this site for a good tech article. So many people really want a dual snorkle setup but can't find all the parts. You've made a fairly good looking piece there and should share your knowledge :hail:
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Joined: Feb 2000
Posts: 7,964
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
Originally posted by jfreeman74
What about this for a TPI setup?
http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEBWA%3AIT
What about this for a TPI setup?
http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEBWA%3AIT
Junior Member
Joined: Dec 2001
Posts: 27
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From: Mililani, HI
Car: 1978 Caprice/Impala
Engine: 472 Caddy
Transmission: TH400
Originally posted by Sitting Bull
That is an excellent setup that you cobbled together!
Please do a write up of it listing all the parts and which cars you took them from. Then submit it to this site for a good tech article. So many people really want a dual snorkle setup but can't find all the parts. You've made a fairly good looking piece there and should share your knowledge :hail:
That is an excellent setup that you cobbled together!
Please do a write up of it listing all the parts and which cars you took them from. Then submit it to this site for a good tech article. So many people really want a dual snorkle setup but can't find all the parts. You've made a fairly good looking piece there and should share your knowledge :hail:
Here's the write-up from my page: http://home.earthlink.net/~guy1139/mods/dsnork.htm
Thanks again for the compliment
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The question was specifically "better for performance". In that case, dual snorkel gets the nod.
Unless, of course, there isn't any ducting to a cool air source. In that case, open element and dual snorkel are equivilent. Well, open might actually be a little better.
Unless, of course, there isn't any ducting to a cool air source. In that case, open element and dual snorkel are equivilent. Well, open might actually be a little better.
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Joined: Feb 2002
Posts: 2,308
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From: Avondale, AZ
Car: currently thirdgenless!!!
The black chrome was $260. Not very many shops will do it. I'm not sure how it is done but there are some special processes that not all shop will take on. You may have to check around a bit to find a shop that does black chrome.
Just to give you an idea of the add cost, my previous dual snorkel I have done in regualr chrome and it was $85.
Ofcourse those prices are just for the plating and does not include the dual snorkel. Which are running anywhere from $100 - $150 or more for a good one. And that will probably not include the duct work.
I think I have some more pics. I'll post if I can find.
Just to give you an idea of the add cost, my previous dual snorkel I have done in regualr chrome and it was $85.
Ofcourse those prices are just for the plating and does not include the dual snorkel. Which are running anywhere from $100 - $150 or more for a good one. And that will probably not include the duct work.
I think I have some more pics. I'll post if I can find.
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Joined: Feb 2002
Posts: 2,308
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From: Avondale, AZ
Car: currently thirdgenless!!!
Well I can't seem to post a pic to here is a link to a post that has the black chrome with the regular chrome lid sitting next to it.
https://www.thirdgen.org/techbb2/sho...t=dual+snorkel
https://www.thirdgen.org/techbb2/sho...t=dual+snorkel
Junior Member
Joined: Dec 2002
Posts: 92
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From: Massachusetts
Car: 89 Z28
Engine: 350 with ads
Transmission: 700r4
performance upgrade
Dual snorkel because it draws cool air from outside the car. Worth 1/4 second in the 1/4 mile on a 16 second 305 3rd gen
First off if the air cleaner helped the engine make more power it would result in a higher MPH, not necessarly a faster ET.
The way to tell of a modification has altered horsepower is to see its reflection in MPH. ET relies on too many other variables (Traction, shifts, track temp, etc) to be reliable.
Lets do a little math. ...
HP = (speed / 234)^3 x weight.
ET (if car is set up for perfect traction) = (weight / HP)^1/3 x 5.825
Using the above example, if the car runs 16 seconds and weighs 3600 lbs we can determine that the car makes 173 HP and would run the 1/4 at about 85 MPH
To run the 1/4 at 15.75 the car would have to make 182 HP.
Thats almost a 6% gain. Thats quite a bit for simply changing the TEMPERATURE if the intake charge. If such a mod could provide a 5% increase in power could a 400 HP engine gain 20 HP?
All this is if the car is set up with a perfect suspension.
My point is what little gain, if any, is probably inconsequential. And such hard and fast rules of "its worth a 1/4 second", or a "100 lb weight reduction is worth a tenth" is definatley the exception and not the rule.
Supreme Member
Joined: Jun 2001
Posts: 3,238
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From: Calgary, Alberta, Republic of Western Canada
Car: 1986 Sport Coupé
Engine: 305-4v
Transmission: 700R4 and TransGo2
Re: performance upgrade
Originally posted by littlebagz
My point is what little gain, if any, is probably inconsequential. And such hard and fast rules of "its worth a 1/4 second", or a "100 lb weight reduction is worth a tenth" is definatley the exception and not the rule.
My point is what little gain, if any, is probably inconsequential. And such hard and fast rules of "its worth a 1/4 second", or a "100 lb weight reduction is worth a tenth" is definatley the exception and not the rule.
Blame them.
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