Cold air intake and noise - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

67-LS1 · 11-21-2021, 08:24 PM

I’m probably not normal in this regard but has anyone figured out a way to quiet down a cold air intake? Mine is louder than my exhaust.
And don’t suggest a stock air box because my LFX is in a Chevelle and the Camaro air box won’t fit.
Intake attenuators, baffles, insulation, anything?
Thanks

ChibiBlackSheep · 11-22-2021, 08:15 AM

I know the stock box doesn't fit, but does the stock tube work for you? They had 2 large plastic protruders coming off of it that was used as a sound dampener.

67-LS1 · 11-22-2021, 09:50 AM

Interesting. I don’t know if the tube/elbow will fit. I’ve got some space from the throttle body to the radiator but I don’t have dimensions on that elbow. Does anyone have one they can measure for me or a cheap one for sale?

Edit: I just measured my car. If the stock elbow were standing upright on a table it would need to be less than 6” tall to clear in my car. Seems from the pics I’ve seen that the elbow might be taller than that.

ChibiBlackSheep · 11-22-2021, 03:02 PM

I don't own my LFX anymore, and returned it to stock before it was sold.

Hopefully someone can get you some measurements

ariZona28 · 11-24-2021, 09:54 AM

Snapped a couple photos. Looks like you need about 8" of clearance for the elbow. Entire unit is approx 32" wide. If you could find a used one cheap it might be worth picking up and attempting to modify.

67-LS1 · 11-24-2021, 06:09 PM

Quote:

Originally Posted by ariZona28

Snapped a couple photos. Looks like you need about 8" of clearance for the elbow. Entire unit is approx 32" wide. If you could find a used one cheap it might be worth picking up and attempting to modify.

Thanks for dimensions. It’s what I was afraid of. Can I get one more dimension from you? How long is the part that slips over the throttle body? I’m wondering if I could trim that down and get closer to where I need to be?
Thanks

ariZona28 · 11-25-2021, 10:45 AM

Looks like there's a little less than an inch. Still need to have enough material to secure the clamp. Not sure you want to go to wild in that area so you don't disrupt the airflow going into the T/B. I'm curious, you've got a fairly small engine in a huge A-body. What would you be making contact with? Fans, radiator? Any way to move a few things around?

67-LS1 · 11-25-2021, 12:26 PM

Quote:

Originally Posted by ariZona28

Looks like there's a little less than an inch. Still need to have enough material to secure the clamp. Not sure you want to go to wild in that area so you don't disrupt the airflow going into the T/B. I'm curious, you've got a fairly small engine in a huge A-body. What would you be making contact with? Fans, radiator? Any way to move a few things around?

The LFX is actually pretty large as V6 engine go. And the throttle body hangs off the front too.
You can see from the attached pics that the interference would be with the fan on the back of the radiator. The current silicon elbow is a tight radius 3”x3.5” and works well.
It’s just noisy as all hell. A very deep throated sucking noise. Louder than the exhaust at certain load levels.
I thought using the factory elbow with the resonators would help. It looks like I might be able to cut two inches off the stock elbow and use an external rubber boot to put it back together. Or maybe some plastic welding.
Otherwise I guess I’ll go to Pick and Pull and scrounge around for a similar sized resonator I can adapt in there somehow

11-21-2021, 08:24 PM	#1
67-LS1 Drives: 1966 Chevelle Join Date: Oct 2013 Location: Northern California Posts: 141	Cold air intake and noise I’m probably not normal in this regard but has anyone figured out a way to quiet down a cold air intake? Mine is louder than my exhaust. And don’t suggest a stock air box because my LFX is in a Chevelle and the Camaro air box won’t fit. Intake attenuators, baffles, insulation, anything? Thanks __________________ 66 Chevelle with 2013 LFX V6, 6 speed auto, full Hotchkis suspension, Wilwood 4 wheel discs.

11-22-2021, 08:15 AM	#2
ChibiBlackSheep Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012 Location: Southeast, PA Posts: 2,099	I know the stock box doesn't fit, but does the stock tube work for you? They had 2 large plastic protruders coming off of it that was used as a sound dampener. __________________ LS3 Crate Engine Swap \| CSP Custom Cam 232/240 .615/.615 113 +3 \| Stainless Power LT Headers \| Z28 Intake \| Borla S-Type Exhaust \| FTI Triple-Disc Billet 3200 Stall 2012 Camaro 2SS/RS \| 1968 Camaro SS \| 2020 Cadillac CT5 Premium Luxury \| 2021 Spark LS

11-22-2021, 09:50 AM	#3
67-LS1 Drives: 1966 Chevelle Join Date: Oct 2013 Location: Northern California Posts: 141	Interesting. I don’t know if the tube/elbow will fit. I’ve got some space from the throttle body to the radiator but I don’t have dimensions on that elbow. Does anyone have one they can measure for me or a cheap one for sale? Edit: I just measured my car. If the stock elbow were standing upright on a table it would need to be less than 6” tall to clear in my car. Seems from the pics I’ve seen that the elbow might be taller than that. __________________ 66 Chevelle with 2013 LFX V6, 6 speed auto, full Hotchkis suspension, Wilwood 4 wheel discs.

11-22-2021, 03:02 PM	#4
ChibiBlackSheep Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012 Location: Southeast, PA Posts: 2,099	I don't own my LFX anymore, and returned it to stock before it was sold. Hopefully someone can get you some measurements __________________ LS3 Crate Engine Swap \| CSP Custom Cam 232/240 .615/.615 113 +3 \| Stainless Power LT Headers \| Z28 Intake \| Borla S-Type Exhaust \| FTI Triple-Disc Billet 3200 Stall 2012 Camaro 2SS/RS \| 1968 Camaro SS \| 2020 Cadillac CT5 Premium Luxury \| 2021 Spark LS

11-24-2021, 09:54 AM	#5
ariZona28 Give speed a chance Drives: 2015 Camaro 2LS, 2015 Camaro Z/28 Join Date: Nov 2019 Location: Mesa, Az Posts: 2,279	Snapped a couple photos. Looks like you need about 8" of clearance for the elbow. Entire unit is approx 32" wide. If you could find a used one cheap it might be worth picking up and attempting to modify. Attached Images __________________ 2LS: a TREMENDOUS machine. Z/28: it's a BIT MORE POWERFUL, of course.

11-25-2021, 10:45 AM	#7
ariZona28 Give speed a chance Drives: 2015 Camaro 2LS, 2015 Camaro Z/28 Join Date: Nov 2019 Location: Mesa, Az Posts: 2,279	Looks like there's a little less than an inch. Still need to have enough material to secure the clamp. Not sure you want to go to wild in that area so you don't disrupt the airflow going into the T/B. I'm curious, you've got a fairly small engine in a huge A-body. What would you be making contact with? Fans, radiator? Any way to move a few things around? Attached Images __________________ 2LS: a TREMENDOUS machine. Z/28: it's a BIT MORE POWERFUL, of course.