Can I get rid of carb noise..., without getting rid of carbs? |
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Can I get rid of carb noise..., without getting rid of carbs? |
michael7810 |
Apr 24 2017, 06:41 PM
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#1
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Senior Member Group: Members Posts: 1,078 Joined: 6-June 11 From: Scottsdale, AZ Member No.: 13,164 Region Association: Southwest Region |
Carb noise has to be the most annoying part of taking a long drive. I use ear plugs and it helps but it still annoys the hell out of me on long drives like my recent 1000+ drive to attend Rt 66. I have weber IDFs with cheapo K&N knockoff air cleaners. Would rain hats make much of a difference? I have insulation on the firewall already. Looking for some relief before heading out to WCR in a month. TIA
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dansvan |
Apr 24 2017, 06:48 PM
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#2
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Newbie Group: Members Posts: 34 Joined: 15-June 16 From: Eagle River Alaska Member No.: 20,111 Region Association: None |
Turbo hats with hose/piping to a different area with a cone filter on the end?
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JmuRiz |
Apr 24 2017, 06:53 PM
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#3
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914 Guru Group: Members Posts: 5,421 Joined: 30-December 02 From: NoVA Member No.: 50 Region Association: MidAtlantic Region |
Make sure your rear window has a good seal on the bottom edge.
Also, maybe look into using an airbox of some kind, maybe an early 912 style. |
poorsche914 |
Apr 24 2017, 07:05 PM
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#4
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T4 Supercharged Group: Members Posts: 3,087 Joined: 28-May 09 From: Smoky Mountains Member No.: 10,419 Region Association: South East States |
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Dave_Darling |
Apr 24 2017, 08:13 PM
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#5
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914 Idiot Group: Members Posts: 14,980 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Insulation on the firewall, insulation on the engine lid, put the rain tray in, fab up an airbox and maybe put insulation on that....
--DD |
r_towle |
Apr 24 2017, 08:24 PM
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#6
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Custom Member Group: Members Posts: 24,560 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
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Blue6 |
Apr 24 2017, 09:12 PM
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#7
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Senior Member Group: Members Posts: 1,032 Joined: 3-October 13 From: SoCal Member No.: 16,470 Region Association: Southern California |
Mike, send a pm to Keith914. At the last G&R swap meet, he was showing us his air cleaner boxes from I believe a Honda motorcycle. He said it really tamed the noise... dave
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Elliot Cannon |
Apr 24 2017, 09:26 PM
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#8
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None |
I actually like the noise my 44 idf's make. Especially at WOT. I wear foam earplugs because of the noise all the other cars and trucks make, especially on the highway.
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michael7810 |
Apr 25 2017, 06:48 AM
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#9
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Senior Member Group: Members Posts: 1,078 Joined: 6-June 11 From: Scottsdale, AZ Member No.: 13,164 Region Association: Southwest Region |
Thanks for the ideas. I'll check the seal on the rear glass but I believe it's OK. The CSP filter box looks great but I'm looking for a csob solution at least for now. It looks like the motorcycle filter boxes are worth a try and I will talk to Keith914 to see how he did it on the engine he just sold. My goal is to have it done by WCR...my WCR punch list is getting long.
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rgolia |
Apr 25 2017, 08:06 AM
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#10
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GeoJoe Group: Members Posts: 703 Joined: 5-February 10 From: PA Member No.: 11,329 Region Association: North East States |
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struckn |
Apr 25 2017, 08:48 AM
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#11
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Senior Member Group: Members Posts: 1,069 Joined: 9-November 11 From: South Central York Pennsyvania Member No.: 13,764 Region Association: MidAtlantic Region |
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7TPorsh |
Apr 25 2017, 09:07 AM
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#12
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7T Porsh Group: Members Posts: 2,691 Joined: 27-March 06 From: Glendale Ca Member No.: 5,782 Region Association: Southern California |
My solution cost me under $40 total and cut the sound at least 80%, I am not fudging; honestly 80%. Really quiets up the intake noise but you can still hear the carbs suck....just much lower volume and pitch. i can head my exhaust now. i meet a fellow from Laguna Beach at Bruce's swap meet and he had done the conversion too. i highly recommend this. There was no change in performance. The other alternative I considered were 912 air cleaner housings but those are $$$$. This way I keep my velocity stacks too! |
Dave_Darling |
Apr 25 2017, 09:28 AM
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#13
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914 Idiot Group: Members Posts: 14,980 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
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Mark Henry |
Apr 25 2017, 09:59 AM
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#14
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Just remember the engine cooling flow of air goes out the engine grill so don't block it. No, it comes in the grille. It goes out the bottom of the car! --DD (IMG:style_emoticons/default/agree.gif) but correct on the part about not blocking it. |
Mark Henry |
Apr 25 2017, 10:06 AM
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#15
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I'm going to be in the same boat with my weber /6 conversion
I know many don't like the stock pad because of rust and it's heavy, but I'm thinking of putting it back in. Maybe securing it better. I have zero rust issues behind the pad. Make sure your rear window has a good seal on the bottom edge. (IMG:style_emoticons/default/agree.gif) I can see the bottom of my window is loose. |
struckn |
Apr 25 2017, 05:19 PM
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#16
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Senior Member Group: Members Posts: 1,069 Joined: 9-November 11 From: South Central York Pennsyvania Member No.: 13,764 Region Association: MidAtlantic Region |
Just remember the engine cooling flow of air goes out the engine grill so don't block it. No, it comes in the grille. It goes out the bottom of the car! --DD (IMG:style_emoticons/default/agree.gif) but correct on the part about not blocking it. (IMG:style_emoticons/default/sad.gif) No it comes out the grill top when the engines off and the cars not moving. (IMG:style_emoticons/default/av-943.gif) (IMG:style_emoticons/default/tongue.gif) |
drem914 |
Apr 25 2017, 06:13 PM
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#17
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Senior Member Group: Members Posts: 1,025 Joined: 16-May 08 From: Trabuco Canyon, CA Member No.: 9,062 Region Association: Southern California |
My solution cost me under $40 total and cut the sound at least 80%, I am not fudging; honestly 80%. Really quits up the intake noise but you can still hear the carbs suck....just much lower volume and pitch. i can head my exhaust now. i meet a fellow from Laguna Beach at Bruce's swap meet and he had done the conversion too. i highly recommend this. There was no change in performance. The other alternative I considered were 912 air cleaner housings but those are $$$$. This way I keep my velocity stacks too! Did the Honda enclosures conflict with linkage support brackets on the lower plates? |
McMark |
Apr 26 2017, 07:46 AM
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#18
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Did the Honda enclosures conflict with linkage support brackets on the lower plates? Sounds like you have a cross bar linkage. You need to throw that in the trash and order a CSP Bellcrank Linkage. |
michael7810 |
Apr 26 2017, 08:47 AM
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#19
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Senior Member Group: Members Posts: 1,078 Joined: 6-June 11 From: Scottsdale, AZ Member No.: 13,164 Region Association: Southwest Region |
I ordered Honda filter boxes from eBay. I'll report back on e I get them installed. I have the Tangerine cable linkage.
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drem914 |
Apr 26 2017, 10:33 AM
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#20
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Senior Member Group: Members Posts: 1,025 Joined: 16-May 08 From: Trabuco Canyon, CA Member No.: 9,062 Region Association: Southern California |
Did the Honda enclosures conflict with linkage support brackets on the lower plates? Sounds like you have a cross bar linkage. You need to throw that in the trash and order a CSP Bellcrank Linkage. I have the bell crank linkage installed. I am using the support brackets as a mount point for a cross bar to install the oil catch can and my fuel pressure regulator. |
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