Help me get to the bottom of my weird header noise - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

bmorecam · 02-19-2012, 12:45 PM

The problem is this noise that I been noticing about a month after I installed my OBX long tube header. This is my 3rd time posting about this but it seems no one really know what I am talking about, so hopefully I can have better luck with a broader audience.

Just to clarify, I have no leaks since I know that is the first thing that will come to everyone's mind

.

Anyhow, there's this raspy noise, or imagine a very thin trace paper crumpling in your hand, and I don't mean my exhaust sounding raspy because of headers. The noise is coming from the engine area and the noise come through the dashboard, more towards the passenger side. I can't hear the noise when I have the windows down but it's definitely there when I have my windows up, and it's only audible when I accelerate. The more I push the pedal the louder it get, but once I WOT the noise get lost with the high engine and exhaust noise.

WTH is this!?

I been trying to figure this out for almost a year and I can't seem to find an answer. I searched on the internet frequently and I do come across alot of peoples talking about rasp after the header install but most are talking about their exhaust sounding raspy and it doesn't seem to fit with my issue. I am at the point where I am even thinking about getting rid of this long tube and try a different brand, but I need to know if this is because of the header or what?

Too much mods to take it to the dealer, and if this is really my header causing this then I wouldn't really want that to be the diagnose while at the dealer.

Anyone have any clue what it could be?

bigsquirrel · 02-19-2012, 01:12 PM

I don't know your mods, do you have a boost gauge? a leak in a boost line can do this.

RANGERGOD · 02-19-2012, 01:12 PM

Can you hear it by hitting the gas while parked? If so, see if you can get a video of it.

bigsquirrel · 02-19-2012, 01:14 PM

Sometimes things break that are completely unrelated to a mod you happened to be doing at that time. The raspy sound that increases as you drive makes me think of a vacuum/boost leak.

bmorecam · 02-19-2012, 01:25 PM

I have no idea why this got moved to v8 section

I purposely created this thread in the general section so I can get help from everyone.

Anyhow, I appreciate you guys trying to help. My car is not boosted. Can't hear it while parked and hitting the gas. I even doubt I can catch the noise while driving since it's not loud at all. Just enough to know it's there and very annoying.

The best way to describe the noise is rasp. It almost sound like someone crumpling a very thin trace paper in your hand while accelerating. It's really weird. I just want to find out WTH it is!

its a syn · 02-19-2012, 01:38 PM

Do you have the RX oil breather? Could be the check valve engaging.

bmorecam · 02-19-2012, 01:39 PM

no I don't.

bigsquirrel · 02-19-2012, 02:06 PM

The fact that it only happens under load makes me think even more it's a vacuum leak.

bmorecam · 02-19-2012, 06:20 PM

Could a vacuum leak create a sound that sound like trace paper crumpling or raspy? I don't think it's vacuum leak tho because my fuel trims look fine. No extra air going in unnoticed.

This is crazy LOL. it seems no one ever knows

I appreciate you helping tho either way

ss/rs-matt · 02-19-2012, 06:29 PM

Are you using the hardware that came with your OBX's to attach the header to the mid pipe? Its some springs and long bolts.

MarylandSpeed · 02-19-2012, 07:35 PM

Headers are thinner than the cast iron manifolds. Because of this, sometimes you get what sounds like a slight ticking from the front of the car because they do not insulate sound as well. It is normal.

goatslapper · 02-19-2012, 07:57 PM

If you have a cia intake or any other intake,check the stud on the fender that the intake is bolted to. Mine came loose and made a buzzing sound. Locktite and retightened and noise was gone. Good luck.

jcollins91106 · 02-19-2012, 08:27 PM

I had somethign similat it turned out to be the heat sheild above the cats/ x pipe starting location. I removed the sheild and it went away. Later on I re installed it with some hogh heat hard rubber peices and no more issues...This might be it but without a vid, it's hard to say.

jcollins91106 · 02-19-2012, 08:29 PM

and it got moved from general because thats not the right section... but you will get better answers here as members specifically read these threads to help solve mechanical,engine, powertrain etc issues

02-19-2012, 12:45 PM	#1
bmorecam Account Suspended Drives: jealous vendors mad!! HAHA!! Join Date: Jan 2011 Location: CYBERGMONSTER@GMAIL.COM Posts: 3,658 View My Garage	Help me get to the bottom of my weird header noise The problem is this noise that I been noticing about a month after I installed my OBX long tube header. This is my 3rd time posting about this but it seems no one really know what I am talking about, so hopefully I can have better luck with a broader audience. Just to clarify, I have no leaks since I know that is the first thing that will come to everyone's mind. Anyhow, there's this raspy noise, or imagine a very thin trace paper crumpling in your hand, and I don't mean my exhaust sounding raspy because of headers. The noise is coming from the engine area and the noise come through the dashboard, more towards the passenger side. I can't hear the noise when I have the windows down but it's definitely there when I have my windows up, and it's only audible when I accelerate. The more I push the pedal the louder it get, but once I WOT the noise get lost with the high engine and exhaust noise. WTH is this!? I been trying to figure this out for almost a year and I can't seem to find an answer. I searched on the internet frequently and I do come across alot of peoples talking about rasp after the header install but most are talking about their exhaust sounding raspy and it doesn't seem to fit with my issue. I am at the point where I am even thinking about getting rid of this long tube and try a different brand, but I need to know if this is because of the header or what? Too much mods to take it to the dealer, and if this is really my header causing this then I wouldn't really want that to be the diagnose while at the dealer. Anyone have any clue what it could be?

02-19-2012, 01:12 PM	#2
bigsquirrel My car runs on acorns.... Drives: 2010 SS RS Inferno Orange Join Date: Feb 2010 Location: Albuquerque Posts: 1,351 View My Garage	I don't know your mods, do you have a boost gauge? a leak in a boost line can do this. __________________ My car runs on acorns, the tears of ricers and these other slightly less important things... 2.9 Polished Whipple, Kooks LT 1 7/8 headers, HiFlow Cats, Kooks Sleeper catback, Cooling Mist Methanol Injection, PFADT Sport Sways, PFADT Springs, PFADT rear trailing arms, ADM intake, JDP stainless brake lines, Jegs Catch can, Stock SS wheels widened to 10 3/4, Hawks HPS Pads, Pedders Rear Subframe Bushing Inserts, BMR Center Brace, MSD BAP, AAC side markers, Emblem Pro's Custom Lighted Door Sills, Dash-Floor-Cupholder ABL lighting and other stuff....

02-19-2012, 01:12 PM	#3
RANGERGOD IDBZ M.C. Drives: 12' IOM, 2SS, LS3 Join Date: Feb 2012 Location: Columbus, Ga. Posts: 562	Can you hear it by hitting the gas while parked? If so, see if you can get a video of it. __________________

02-19-2012, 01:14 PM	#4
bigsquirrel My car runs on acorns.... Drives: 2010 SS RS Inferno Orange Join Date: Feb 2010 Location: Albuquerque Posts: 1,351 View My Garage	Sometimes things break that are completely unrelated to a mod you happened to be doing at that time. The raspy sound that increases as you drive makes me think of a vacuum/boost leak. __________________ My car runs on acorns, the tears of ricers and these other slightly less important things... 2.9 Polished Whipple, Kooks LT 1 7/8 headers, HiFlow Cats, Kooks Sleeper catback, Cooling Mist Methanol Injection, PFADT Sport Sways, PFADT Springs, PFADT rear trailing arms, ADM intake, JDP stainless brake lines, Jegs Catch can, Stock SS wheels widened to 10 3/4, Hawks HPS Pads, Pedders Rear Subframe Bushing Inserts, BMR Center Brace, MSD BAP, AAC side markers, Emblem Pro's Custom Lighted Door Sills, Dash-Floor-Cupholder ABL lighting and other stuff....

02-19-2012, 01:38 PM	#6
its a syn B.O.D. 02/16/10 Drives: 2010 SGM Sp. Edition 2017 RS Conver Join Date: Jun 2010 Location: Albia,Iowa Posts: 3,959 View My Garage	Do you have the RX oil breather? Could be the check valve engaging. __________________

02-19-2012, 01:25 PM	#5
bmorecam Account Suspended Drives: jealous vendors mad!! HAHA!! Join Date: Jan 2011 Location: CYBERGMONSTER@GMAIL.COM Posts: 3,658 View My Garage	I have no idea why this got moved to v8 section I purposely created this thread in the general section so I can get help from everyone. Anyhow, I appreciate you guys trying to help. My car is not boosted. Can't hear it while parked and hitting the gas. I even doubt I can catch the noise while driving since it's not loud at all. Just enough to know it's there and very annoying. The best way to describe the noise is rasp. It almost sound like someone crumpling a very thin trace paper in your hand while accelerating. It's really weird. I just want to find out WTH it is!

02-19-2012, 01:39 PM	#7
bmorecam Account Suspended Drives: jealous vendors mad!! HAHA!! Join Date: Jan 2011 Location: CYBERGMONSTER@GMAIL.COM Posts: 3,658 View My Garage	no I don't.

02-19-2012, 02:06 PM	#8
bigsquirrel My car runs on acorns.... Drives: 2010 SS RS Inferno Orange Join Date: Feb 2010 Location: Albuquerque Posts: 1,351 View My Garage	The fact that it only happens under load makes me think even more it's a vacuum leak. __________________ My car runs on acorns, the tears of ricers and these other slightly less important things... 2.9 Polished Whipple, Kooks LT 1 7/8 headers, HiFlow Cats, Kooks Sleeper catback, Cooling Mist Methanol Injection, PFADT Sport Sways, PFADT Springs, PFADT rear trailing arms, ADM intake, JDP stainless brake lines, Jegs Catch can, Stock SS wheels widened to 10 3/4, Hawks HPS Pads, Pedders Rear Subframe Bushing Inserts, BMR Center Brace, MSD BAP, AAC side markers, Emblem Pro's Custom Lighted Door Sills, Dash-Floor-Cupholder ABL lighting and other stuff....

02-19-2012, 06:20 PM	#9
bmorecam Account Suspended Drives: jealous vendors mad!! HAHA!! Join Date: Jan 2011 Location: CYBERGMONSTER@GMAIL.COM Posts: 3,658 View My Garage	Could a vacuum leak create a sound that sound like trace paper crumpling or raspy? I don't think it's vacuum leak tho because my fuel trims look fine. No extra air going in unnoticed. This is crazy LOL. it seems no one ever knows I appreciate you helping tho either way

02-19-2012, 06:29 PM	#10
ss/rs-matt Drives: 2015 ZL1 Join Date: Aug 2011 Location: California Posts: 1,731	Are you using the hardware that came with your OBX's to attach the header to the mid pipe? Its some springs and long bolts.

02-19-2012, 07:35 PM	#11
MarylandSpeed Account Suspended Drives: 2012 ZL1 & 2010 2SS/RS Join Date: Jul 2009 Location: Maryland Posts: 3,378	Headers are thinner than the cast iron manifolds. Because of this, sometimes you get what sounds like a slight ticking from the front of the car because they do not insulate sound as well. It is normal.

02-19-2012, 07:57 PM	#12
goatslapper 12.527@112.33 MPH Drives: 2010 black ss/rs cgm stripes Join Date: Mar 2010 Location: milltown,nj Posts: 1,317	If you have a cia intake or any other intake,check the stud on the fender that the intake is bolted to. Mine came loose and made a buzzing sound. Locktite and retightened and noise was gone. Good luck. Last edited by goatslapper; 02-19-2012 at 08:36 PM.

02-19-2012, 08:27 PM	#13
jcollins91106 Drives: 2010 2ss m6 Join Date: Aug 2011 Location: staten island, ny Posts: 511	I had somethign similat it turned out to be the heat sheild above the cats/ x pipe starting location. I removed the sheild and it went away. Later on I re installed it with some hogh heat hard rubber peices and no more issues...This might be it but without a vid, it's hard to say. __________________ 2010 2ss M6, TSP 1 7/8 Long Tube headers,dual electric cutouts, 3" pipes all the way back to magnaflows. elite engineering catch can, custom painted engine cover,CAI cold air intake, apex cold air racescoop, jannety racing 470 hp kit, custom JRE hot rough idle blower cam, jannety racing dyno tuned. pfadt lowering springs, lsr short throw shifter, custom sub setup,sony 7" indash nav, interior stiching dye, 20% tint all around, HAVOC spoiler, tail light black out, chevy emblem black out, seibon BBII carbon fiber hood,Front and rear bowtie blackouts. 461 rwhp and not done yet!

02-19-2012, 08:29 PM	#14
jcollins91106 Drives: 2010 2ss m6 Join Date: Aug 2011 Location: staten island, ny Posts: 511	and it got moved from general because thats not the right section... but you will get better answers here as members specifically read these threads to help solve mechanical,engine, powertrain etc issues __________________ 2010 2ss M6, TSP 1 7/8 Long Tube headers,dual electric cutouts, 3" pipes all the way back to magnaflows. elite engineering catch can, custom painted engine cover,CAI cold air intake, apex cold air racescoop, jannety racing 470 hp kit, custom JRE hot rough idle blower cam, jannety racing dyno tuned. pfadt lowering springs, lsr short throw shifter, custom sub setup,sony 7" indash nav, interior stiching dye, 20% tint all around, HAVOC spoiler, tail light black out, chevy emblem black out, seibon BBII carbon fiber hood,Front and rear bowtie blackouts. 461 rwhp and not done yet!

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