Delayed Exhaust Noise
Jan 13, 2014 | 12:52 PM
Thread Starter
Drifting
Joined: Feb 2005
Posts: 1,583
Likes: 5
From: Richardson Tx.
Delayed Exhaust Noise
'78 model with headers , 2.5 duals and about 300hp.
Whenever I gun it I get a roar from the engine and then about 1 second later I get another roar out of the mufflers. it doesn't sound right.
Jan 13, 2014 | 01:09 PM
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
Maybe you're travelling at the speed of sound?
Jan 13, 2014 | 01:23 PM
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
What mufflers do you have?
Scott
Jan 13, 2014 | 01:31 PM
Thread Starter
Drifting
Joined: Feb 2005
Posts: 1,583
Likes: 5
From: Richardson Tx.
Quote:
Originally Posted by
Mike Ward
Maybe you're travelling at the speed of sound?
Every public forum has its jacka**
These are generic mufflers from the 2.5 exhaust package that I got.
Jan 13, 2014 | 02:41 PM
Burning Brakes
Joined: Apr 2010
Posts: 1,018
Likes: 9
From: Winston Ga.
thats weird, I cant imagine. got a video? I want to hear that.
Jan 13, 2014 | 03:02 PM
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
I wonder if you're just hearing the intake noise from the carb...
Jan 13, 2014 | 03:14 PM
Team Owner
Joined: Jun 2000
Posts: 38,923
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From: Southbound
Cruise-In II Veteran
Why does it not sound "right"? What were you expecting to hear?
Jan 13, 2014 | 04:46 PM
Melting Slicks
Joined: Jul 2010
Posts: 2,503
Likes: 33
From: McGrady NC
St. Jude Donor '15-'16
I'd agree that it is probably the secondaries opening up on the carb instead of exhaust noise. It would be hard to tell where all the racket is coming from when you really romp it.
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Jan 13, 2014 | 06:06 PM
Le Mans Master
Joined: May 2008
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2022 C3 of the Year Finalist - Modified
Speed of SOund
Quote:
Originally Posted by
Mike Ward
Maybe you're travelling at the speed of sound?
Thats a good one, made me laugh!!
Jan 13, 2014 | 06:30 PM
Melting Slicks
Joined: Mar 2005
Posts: 2,095
Likes: 299
From: Midlothian VA
Quote:
Originally Posted by
iwasmenowhesgone
Thats a good one, made me laugh!!
Perhaps your CAT is plugged.
Jan 13, 2014 | 06:32 PM
Race Director
Joined: Dec 1999
Posts: 19,610
Likes: 778
From: Forked River NJ
Quote:
Originally Posted by
Mike Ward
Maybe you're travelling at the speed of sound?
I laughed at this also. Mike has certainly stirred the pot a lot more than this. You got off easy with him
A little laughter is good. I agree with the other guys it may be carb noise
Jan 13, 2014 | 06:33 PM
Le Mans Master
Joined: Oct 2010
Posts: 6,938
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From: melbourne florida
2023 C3 of the Year Finalist - Modified
Jan 13, 2014 | 06:56 PM
Le Mans Master
Joined: Apr 2011
Posts: 6,284
Likes: 1,171
From: Hermosa
Quote:
Originally Posted by
Mike Ward
Maybe you're travelling at the speed of sound?
Now technically, if he were traveling at the speed of sound how would he hear the exhaust out the tail pipe at all.
Jan 13, 2014 | 07:12 PM
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
Quote:
Originally Posted by
REELAV8R
Now technically, if he were traveling at the speed of sound how would he hear the exhaust out the tail pipe at all.
We all know that qjet carbs are junk so the car would never quite reach Mach 1, just close..
Jan 13, 2014 | 09:03 PM
Le Mans Master
Joined: Apr 2011
Posts: 6,284
Likes: 1,171
From: Hermosa
Quote:
Originally Posted by
Mike Ward
We all know that qjet carbs are junk so the car would never quite reach Mach 1, just close..
You're right. I think F-16's run Holleys.
Jan 14, 2014 | 10:32 AM
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
Quote:
Originally Posted by
goliath1
Every public forum has its jacka**
These are generic mufflers from the 2.5 exhaust package that I got.
Yep, and every public forum also has its stuck-up prig who can't take a joke. Lighten up, Francis.
Scott
Jan 14, 2014 | 10:37 AM
Racer
Joined: Nov 2012
Posts: 340
Likes: 2
From: Port Washington WI
Quote:
Originally Posted by
Hammerhead Fred
Always make sure to have your cat pointed in a safe direction before unplugging him. It makes clean up easier.
Jan 14, 2014 | 07:30 PM
Melting Slicks
Joined: Mar 2005
Posts: 2,095
Likes: 299
From: Midlothian VA
Quote:
Originally Posted by
wisoutlaw
Always make sure to have your cat pointed in a safe direction before unplugging him. It makes clean up easier.
Funny and...
A plugged catalytic converter will cause a "roaring" sound.