11-21-2021, 08:24 PM | #1 |
Drives: 1966 Chevelle Join Date: Oct 2013
Location: Northern California
Posts: 141
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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
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66 Chevelle with 2013 LFX V6, 6 speed auto, full Hotchkis suspension, Wilwood 4 wheel discs.
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11-22-2021, 08:15 AM | #2 |
Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012
Location: Southeast, PA
Posts: 2,106
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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.
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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 |
Drives: 1966 Chevelle Join Date: Oct 2013
Location: Northern California
Posts: 141
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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.
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66 Chevelle with 2013 LFX V6, 6 speed auto, full Hotchkis suspension, Wilwood 4 wheel discs.
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11-22-2021, 03:02 PM | #4 |
Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012
Location: Southeast, PA
Posts: 2,106
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I don't own my LFX anymore, and returned it to stock before it was sold.
Hopefully someone can get you some measurements
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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 |
Give speed a chance
Drives: 2015 Camaro 2LS, 2015 Camaro Z/28 Join Date: Nov 2019
Location: Mesa, Az
Posts: 2,380
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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.
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2LS: a TREMENDOUS machine. Z/28: it's a BIT MORE POWERFUL, of course.
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11-24-2021, 06:09 PM | #6 | |
Drives: 1966 Chevelle Join Date: Oct 2013
Location: Northern California
Posts: 141
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Quote:
Thanks
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66 Chevelle with 2013 LFX V6, 6 speed auto, full Hotchkis suspension, Wilwood 4 wheel discs.
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11-25-2021, 10:45 AM | #7 |
Give speed a chance
Drives: 2015 Camaro 2LS, 2015 Camaro Z/28 Join Date: Nov 2019
Location: Mesa, Az
Posts: 2,380
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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?
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2LS: a TREMENDOUS machine. Z/28: it's a BIT MORE POWERFUL, of course.
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11-25-2021, 12:26 PM | #8 | |
Drives: 1966 Chevelle Join Date: Oct 2013
Location: Northern California
Posts: 141
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Quote:
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
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66 Chevelle with 2013 LFX V6, 6 speed auto, full Hotchkis suspension, Wilwood 4 wheel discs.
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