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> Quiet Down A Dual Carb Engine..It Works, Honda Goldwing 1200 Air Boxes....Sound Clips
7TPorsh
post Mar 16 2016, 11:13 AM
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Finally fixed my exhaust leak so a little more quiet but my carbs scream!

I have seen the expensive airbox for sale around $900 but has anyone found any other solution?

I am thinking of using the Turbo Hats and running the input tube bellow the engine tin to a cone filter.

Or are there any type of plastic molded airboxes out there that I can graft the weber bottom plate to?

Running the open K&N filter housings.

Ideas?
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SirAndy
post Mar 16 2016, 11:33 AM
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QUOTE(7TPorsh @ Mar 16 2016, 10:13 AM) *
Ideas?

Switch to FI ...
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rgolia
post Mar 16 2016, 11:38 AM
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Gary,
The CSP airbox I recently installed was $750 shipped. What a difference. I would think you could make something up similar for a lot less, but it will take some work. I do not know if you looked at my thread, but it really looks nice.
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7TPorsh
post Mar 16 2016, 12:11 PM
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QUOTE(rgolia @ Mar 16 2016, 09:38 AM) *

Gary,
The CSP airbox I recently installed was $750 shipped. What a difference. I would think you could make something up similar for a lot less, but it will take some work. I do not know if you looked at my thread, but it really looks nice.


Yes it looks awesome but a little too much $$$. Hoping there are existing boxes out there that could be modified. Maybe the air filter housing off an injected car.
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r_towle
post Mar 16 2016, 12:17 PM
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two CB Performance turbo hats for the carbs.
One mid 70's VW beetle air filter box.
Some 3 inch plastic tubing.

Similar to the CSP box, you can make one that does the same thing.
The turbo hats go on the carbs (duh)
The tubing needs to be drilled into the side of the beetle airbox, then clamped to the turbo hats.

What you gain is noise reduction, and if you look around, this has been done before.
I have no clue where the links are...but I did find it years ago when I had sticker shock regarding the CSP airbox solution.

rich
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wes
post Mar 16 2016, 12:23 PM
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QUOTE(r_towle @ Mar 16 2016, 10:17 AM) *

two CB Performance turbo hats for the carbs.
One mid 70's VW beetle air filter box.
Some 3 inch plastic tubing.

Similar to the CSP box, you can make one that does the same thing.
The turbo hats go on the carbs (duh)
The tubing needs to be drilled into the side of the beetle airbox, then clamped to the turbo hats.

What you gain is noise reduction, and if you look around, this has been done before.
I have no clue where the links are...but I did find it years ago when I had sticker shock regarding the CSP airbox solution.

rich



Would be cool if that link should show up!
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r_towle
post Mar 16 2016, 12:25 PM
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feel free to use google for an hour and find it...
good things come to those who put in the effort.

Rich
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Mark Henry
post Mar 16 2016, 12:37 PM
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QUOTE(wes @ Mar 16 2016, 02:23 PM) *



Would be cool if that link should show up!


I often find doing a search through google works better than the search on this site.

Use the first term "914world" then your search words.
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Elliot Cannon
post Mar 16 2016, 12:55 PM
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I love the way my carbs sound. But then again, I drive with these. (IMG:style_emoticons/default/biggrin.gif)


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rgolia
post Mar 16 2016, 01:14 PM
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How about these

http://www.914world.com/bbs2/index.php?sho...p;#entry1170158

http://www.914world.com/bbs2/index.php?showtopic=110167
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JmuRiz
post Mar 16 2016, 05:44 PM
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912 air boxes would be the easiest to find (I would think)

Those units from BAS and CSP are great looking!
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wndsrfr
post Mar 16 2016, 07:33 PM
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QUOTE(7TPorsh @ Mar 16 2016, 09:13 AM) *



Ideas?


Somewhere I saw someone using Honda Goldwing? (maybe) air filters to cut the induction noise....maybe 3 years ago or so......
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RickS
post Mar 16 2016, 11:00 PM
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Put two layers of a light weight Dynamat like product behind the back pad to reduce noise but my carbs aren't screamers, it's just induction noise.
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7TPorsh
post Mar 17 2016, 09:03 AM
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QUOTE(wndsrfr @ Mar 16 2016, 05:33 PM) *

QUOTE(7TPorsh @ Mar 16 2016, 09:13 AM) *



Ideas?


Somewhere I saw someone using Honda Goldwing? (maybe) air filters to cut the induction noise....maybe 3 years ago or so......




Bingo! I had this in the back of my head too just couldn't recall through the fog.

I just purchased a pair off ebay for less than $30 shipped so this will be the project.

http://www.914world.com/bbs2/index.php?showtopic=194570
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7TPorsh
post Mar 17 2016, 09:15 AM
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As I have done some research overnight it seems that the breather boxes from the 1984-1987 Honda Goldwing 1200 are the ones.

My original thought was to have these type of boxes fed by a common cold air tube but I like how this setup is, nice and clean. I think these molded boxes will do more noise reduction than metal ones like the turbo hats.
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rhodyguy
post Mar 17 2016, 10:00 AM
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can you provide a link to the picture of the gold wing parts?
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7TPorsh
post Mar 17 2016, 02:43 PM
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QUOTE(rhodyguy @ Mar 17 2016, 08:00 AM) *

can you provide a link to the picture of the gold wing parts?


Here is the ebay search page...you just need 1984-1987 Honda Goldwing 1200 air breather box....probably available outside ebay and at the picker part.

http://www.ebay.com/sch/i.html?_odkw=goldw...ox&_sacat=0
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aircooledtechguy
post Mar 17 2016, 03:32 PM
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thedubshop.net made this recently and it really quiets it down.
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veltror
post Mar 18 2016, 01:22 PM
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http://www.gwd-weiser.de/?page_id=343
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moorepower
post Mar 18 2016, 02:58 PM
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QUOTE(aircooledtechguy @ Mar 17 2016, 04:32 PM) *

Attached Image

thedubshop.net made this recently and it really quiets it down.



The std calculation is for every 10 degrees F you loose 1% H.P. They look nice, but...
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