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C3 Fuel, Emission Control, and Exhaust Systems

Side Exhaust Loudness Issues (1/8)
 6/1/17 9:27am
billt75
Former Member

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Vette(s):
75 Coupe 4-Speed


Joined: 1/4/2016
Posts: 1

Does anyone have any experience with Classic Chambered Exhaust Inc.'s Vette-Pack side exhaust?  I am currently running 2-1/4" C2 chambered mufflers behind the '69 C3 covers and the car is just too loud.  Like they say. "If its too loud, your too old".

The engine is a 383 Stroker putting out approximately 510 HP.  Testing my current system with a db meter in a parking lot, I am getting 88 db at idle and 96 db at 2500 RPM.  I'd like to take some of the volume out without choking down the engine.

Classic Chambered offers a 2-1/4" diameter baffle inside a 3" outer body which is the largest diameter that will fit behind the '69 C3 cover.  It is made up of a 20" chambered muffler and a 20" resonator.  I've heard the sound bites off of their website, but I'd like to hear from some one that has heard the Vette-Packs in person.

I look forward to your response.

Bill Thomas


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Re: Side Exhaust Loudness Issues (2/8)
 6/1/17 12:13pm
manchestersharkLifetime Member
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Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.


Joined: 10/31/2007
Posts: 1981

I spoke to a representative at the Corvettes at Carlisle last year about that same system. He said it WILL DEFINITELY be loud. I was told to get the Hooker system with headers and 4 inch collectors and mufflers. Back pressure will not be diminished and sound will be more acceptable.
Re: Side Exhaust Loudness Issues (3/8)
 6/1/17 10:41pm
73shark
Standard Member
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.


Joined: 7/9/2003
Posts: 550

Haven't heard yours but I do know that the '69 side exhaust is quieter than the mid-year is.

______________

1973 L-82 4 spd

Re: Side Exhaust Loudness Issues (4/8)
 11/12/17 2:12pm
VETTERBOBLifetime Member
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DUNEDIN, FL - USA

Vette(s):
1969 COUPE CORTEZ SILVER, BRIGHT BLUE INTERIOR 383 cu. in. 512 HP. Hooker headers w/ side pipes PS PS AC AM FM STEREO. 68,000.MILES C5 5oth Anniversary Coupe , auto.350hp


Joined: 10/22/2004
Posts: 832

dont know about the ones your talking about but o have Hookers WITH 4 in pipes. I startwf wich s reverse flow mufflets and it was quieter thsn the free flow mufflers i have now. however , i wanted it louder. The 383 is the music for me. good luck
Re: Side Exhaust Loudness Issues (5/8)
 11/13/17 10:06am
73shark
Standard Member
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.


Joined: 7/9/2003
Posts: 550

You can always take the muffler inserts out. ;)

______________

1973 L-82 4 spd

Re: Side Exhaust Loudness Issues (6/8)
 11/26/17 3:45pm
VETTERBOBLifetime Member
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DUNEDIN, FL - USA

Vette(s):
1969 COUPE CORTEZ SILVER, BRIGHT BLUE INTERIOR 383 cu. in. 512 HP. Hooker headers w/ side pipes PS PS AC AM FM STEREO. 68,000.MILES C5 5oth Anniversary Coupe , auto.350hp


Joined: 10/22/2004
Posts: 832

tried to post a video of my car with sidepiped driving on highway, but couldnt figure it out.☹
Re: Side Exhaust Loudness Issues (7/8)
 11/26/17 4:03pm
73shark
Standard Member
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.


Joined: 7/9/2003
Posts: 550

From personal experience I can tell you that a 66 big block with chambered side exhaust was a lot louder than my small block with the 69 style reverse flow side pipes.

______________

1973 L-82 4 spd

Re: Side Exhaust Loudness Issues (8/8)
 11/27/17 12:44pm
VETTERBOBLifetime Member
Lifetime Member
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DUNEDIN, FL - USA

Vette(s):
1969 COUPE CORTEZ SILVER, BRIGHT BLUE INTERIOR 383 cu. in. 512 HP. Hooker headers w/ side pipes PS PS AC AM FM STEREO. 68,000.MILES C5 5oth Anniversary Coupe , auto.350hp


Joined: 10/22/2004
Posts: 832

i posted a short video on youtube crusing at About 50mph. give you an idea of what mine sounds like search 69 383 stroker w/Hooker side exhuast