Playing with my pipe...........
Thread Starter
Burning Brakes
Joined: Oct 2009
Posts: 954
Likes: 56
From: oswego ny
Playing with my pipe...........
I just added a axle back on my base o6 about 150 mile ago and getting a loud ear piercing Shrill as you approach up shift...
So i decided for the price $130.00 im gonna add a X pipe in place of the stock H and see what the result may be..
Just thought i post in case anyone may be interested in the brand of axle back i installed.. Here is a link to both..
https://www.holley.com/products/exha.../70401312-RHKR
https://www.summitracing.com/parts/w...make/chevrolet
So i decided for the price $130.00 im gonna add a X pipe in place of the stock H and see what the result may be..
Just thought i post in case anyone may be interested in the brand of axle back i installed.. Here is a link to both..
https://www.holley.com/products/exha.../70401312-RHKR
https://www.summitracing.com/parts/w...make/chevrolet
Race Director
Joined: Dec 2013
Posts: 12,500
Likes: 3,625
Depending on the mufflers, may be pissing in the wind with the new cross over pipe trying to solve the problem with the mufflers.
Corsa and the new Borla muffler do not have any drone or shrill, and may end up have to change to one of these to solve the problem isntead.
And yes, a lot of guys go through the same problem with some strange muffler system they think they are saving money on picking it up the first place, hence ripping it off the car in less than a month, and take a loss on selling it to the next newbie/clueless that will have the same problem with the system as well.
Corsa and the new Borla muffler do not have any drone or shrill, and may end up have to change to one of these to solve the problem isntead.
And yes, a lot of guys go through the same problem with some strange muffler system they think they are saving money on picking it up the first place, hence ripping it off the car in less than a month, and take a loss on selling it to the next newbie/clueless that will have the same problem with the system as well.
Racer
Joined: Sep 2011
Posts: 409
Likes: 91
Several members have posted reviews of the Hooker Blackheart axle-back mufflers on this forum, and all of the ones I've seen have been positive. Can you be more specific about the loud shrill sound you are describing? When I hear that description, I think of a high pitch screaming type of sound. Are you just trying to say that they are too loud for your taste?
On the X-pipe - I think you may disappointed if you install that. Most have described X pipes as making their cars even louder.
On the X-pipe - I think you may disappointed if you install that. Most have described X pipes as making their cars even louder.
Thread Starter
Burning Brakes
Joined: Oct 2009
Posts: 954
Likes: 56
From: oswego ny
Depending on the mufflers, may be pissing in the wind with the new cross over pipe trying to solve the problem with the mufflers.
Corsa and the new Borla muffler do not have any drone or shrill, and may end up have to change to one of these to solve the problem isntead.
And yes, a lot of guys go through the same problem with some strange muffler system they think they are saving money on picking it up the first place, hence ripping it off the car in less than a month, and take a loss on selling it to the next newbie/clueless that will have the same problem with the system as well.
Corsa and the new Borla muffler do not have any drone or shrill, and may end up have to change to one of these to solve the problem isntead.
And yes, a lot of guys go through the same problem with some strange muffler system they think they are saving money on picking it up the first place, hence ripping it off the car in less than a month, and take a loss on selling it to the next newbie/clueless that will have the same problem with the system as well.
.So i guess im not so clueless..
Last edited by carls2004; Jun 12, 2017 at 01:10 PM.
Thread Starter
Burning Brakes
Joined: Oct 2009
Posts: 954
Likes: 56
From: oswego ny
Several members have posted reviews of the Hooker Blackheart axle-back mufflers on this forum, and all of the ones I've seen have been positive. Can you be more specific about the loud shrill sound you are describing? When I hear that description, I think of a high pitch screaming type of sound. Are you just trying to say that they are too loud for your taste?
On the X-pipe - I think you may disappointed if you install that. Most have described X pipes as making their cars even louder.
On the X-pipe - I think you may disappointed if you install that. Most have described X pipes as making their cars even louder.
It's high pitched and almost like running a test tone disc to set up a car amp's gain and making your ear's ring..
So hard to describe...
Racer
Joined: Sep 2011
Posts: 409
Likes: 91
Thanks for asking... The shrill as i described is just as you approach your next up shift when im into the pedal and ear starts ringing.It shifts up and it is gone.
It's high pitched and almost like running a test tone disc to set up a car amp's gain and making your ear's ring..
So hard to describe...
It's high pitched and almost like running a test tone disc to set up a car amp's gain and making your ear's ring..
So hard to describe...
I'm curious if the resonators on these mufflers are causing what you are describing. Do the resonators help with in-cabin drone?
Thread Starter
Burning Brakes
Joined: Oct 2009
Posts: 954
Likes: 56
From: oswego ny
Interesting. Couple more questions if you don't mind. Is this an auto or manual tranny car? What rpm range are you in when the sound is most evident?
I'm curious if the resonators on these mufflers are causing what you are describing. Do the resonators help with in-cabin drone?
I'm curious if the resonators on these mufflers are causing what you are describing. Do the resonators help with in-cabin drone?
And my car is a auto and it has a tune and trans tune.
The rpm, duh me as i havent paid to much attention to that. but if memory is correct it is def at or above 2000 rpm.. I'll check tonight or tomorrow when i drive it...
Also i should get more mile's on it to as to see if noise go's away or gets worse...
It is funny you mentioned the resonators as i was thinking possible them.. I saw a older post of a C6 owner running these and he sounded like he had same noise... not sure if his ever stopped or got worse.
Oh just a note this system has a pretty deep tone to them if anyone interested.
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Thread Starter
Burning Brakes
Joined: Oct 2009
Posts: 954
Likes: 56
From: oswego ny
Thread Starter
Burning Brakes
Joined: Oct 2009
Posts: 954
Likes: 56
From: oswego ny
As per the drone i have not noticed any..
And my car is a auto and it has a tune and trans tune.
The rpm, duh me as i havent paid to much attention to that. but if memory is correct it is def at or above 2000 rpm.. I'll check tonight or tomorrow when i drive it...
Also i should get more mile's on it to as to see if noise go's away or gets worse...
It is funny you mentioned the resonators as i was thinking possible them.. I saw a older post of a C6 owner running these and he sounded like he had same noise... not sure if his ever stopped or got worse.
Oh just a note this system has a pretty deep tone to them if anyone interested.
And my car is a auto and it has a tune and trans tune.
The rpm, duh me as i havent paid to much attention to that. but if memory is correct it is def at or above 2000 rpm.. I'll check tonight or tomorrow when i drive it...
Also i should get more mile's on it to as to see if noise go's away or gets worse...
It is funny you mentioned the resonators as i was thinking possible them.. I saw a older post of a C6 owner running these and he sounded like he had same noise... not sure if his ever stopped or got worse.
Oh just a note this system has a pretty deep tone to them if anyone interested.
Burning Brakes
Joined: Jan 2017
Posts: 1,122
Likes: 199
From: TX
It almost sounds to me that it could be a loose clamp connection and the pipe is acting like a tuning fork when it hits a certain resonance. While you're under the car with the new x-pipe I would double check all the axle-back connections as well.
Thread Starter
Burning Brakes
Joined: Oct 2009
Posts: 954
Likes: 56
From: oswego ny
Here is a link of a guy that sound's like he has same issue.. maybe.
https://www.corvetteforum.com/forums...exhaust-3.html
Last edited by carls2004; Jun 22, 2017 at 12:55 PM.
Thread Starter
Burning Brakes
Joined: Oct 2009
Posts: 954
Likes: 56
From: oswego ny
Be careful if you order these as HOLLY who is maker of these are always out of stock... As THEY actually dont make them completely..
Far as i know they may just attach the tip's... lol...And as i write this they are out of stock ..So if you ordered today you may receive them by Aug 1st... Their terrible about getting this system made and shipped..
HOLLY crap.. I just looked and their NPP in this set up shows in stock..... wow. took them months to get them ready
Last edited by carls2004; Jun 22, 2017 at 12:27 PM.
Thread Starter
Burning Brakes
Joined: Oct 2009
Posts: 954
Likes: 56
From: oswego ny
Not yet... Been busy... Other member mentioned tuning fork sound and that is better description of my noise.. I was able to visually check system and seems fine. And the band clamps that came with system are as tight as they can go..
Local exhaust shop may be on to something tho.. They said get all new band clamps and also undo the tack welded factory one's from the H pipe.. Then undo pipes and add grease and slip back together.. And more important , Apply plenty of oil onto pipe where band clamp tighten's . As they said dry tightening is a issue... Maybe...
Local exhaust shop may be on to something tho.. They said get all new band clamps and also undo the tack welded factory one's from the H pipe.. Then undo pipes and add grease and slip back together.. And more important , Apply plenty of oil onto pipe where band clamp tighten's . As they said dry tightening is a issue... Maybe...