Headers hitting after CAM install - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Rmkuper · 05-22-2021, 09:03 AM

Looking for some advice here. Since the the CAM upgrade car is shaking a lot and so is the motor. Not complaining I think it's awesome!!! Wife not so much

. The only problem is now I am getting some drone and rattle from the headers, gets worse on a turn. I'm thinking it's the motor shaking causing that. I'm still finalizing the tune so I am thinking some of the shaking will calm down after that. The question is I think I can get my hand son a set of BMR mounts at a good price. Do you think this might resolve the issue, What are the pros and cons? Thinking I might just do it anyway...

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morepowerjoe · 05-22-2021, 09:54 AM

I can't remember did you change your torque converter and what size is your your headers? I think your shaking is normal because you know I have the SS1 and it shakes all over the place. It also jurks in gear a lot. And I know what you mean about the wife. All mine says this damn car it's stupid now. lol

Rmkuper · 05-22-2021, 10:29 AM

It's actually SS2 VVT. Torque converter will come this winter with gears and mabe flywheel on the fence. Headers 1 7/8 3in pipes. I had to fight with them and ding a little to fit right. But I got under and looked around yesterday nothing apparent is rubbing. Was thinking of putting it on my buddies lift and letting it run to see if it's moving when it's running.

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Chris49066SS · 05-22-2021, 10:59 AM

My 1 7/8 TSPs never hit the subframe but the 2" do. The 2" headers hit the passenger side subframe. I am finally about to take them off and dimple it, and I just got some 3 bolt flanges that I am going to weld onto the headers and a pair of custom 2' long dumps so I can ditch the exhaust altogether.

For the BMR motor mounts, I understand that the solid aluminum upgrade will result in the motor and thus the headers being 1/4 inch lower than normal, unless you add a washer to keep it at normal height. To my knowledge, thats just for the solid mount, not the poly.

morepowerjoe · 05-22-2021, 11:04 AM

Yeah that would be a good idea to look at it on the lift. I know after a while I developed a little exhaust rattle after my cam install I think it's touching some place because I have a 3" exhaust system as well and we had to dimple it in a couple places under the tranny crossmember. It was touching on the crossmember bolts. But I know you said it was coming from your headers. You could have your exhaust in a bind somewhere too and it could be twisted a little in the wrong direction. You might want to unbolt it and repetition it a little by twisting the pipes in one direction or another as long as yours isn't fully welded (I hope not)

Chris49066SS · 05-22-2021, 12:22 PM

Funny you say that, I had to grab the collector and muscle the hell out of it and pull it so it was off the subframe about 1/8 an inch but when its running and shaking and camming and under acceleration I still get rattling.

gunchamp · 05-22-2021, 04:12 PM

Quote:

Originally Posted by Rmkuper

Looking for some advice here. Since the the CAM upgrade car is shaking a lot and so is the motor. Not complaining I think it's awesome!!! Wife not so much

. The only problem is now I am getting some drone and rattle from the headers, gets worse on a turn. I'm thinking it's the motor shaking causing that. I'm still finalizing the tune so I am thinking some of the shaking will calm down after that. The question is I think I can get my hand son a set of BMR mounts at a good price. Do you think this might resolve the issue, What are the pros and cons? Thinking I might just do it anyway...

Sent from my SM-F916U using Tapatalk

As soon as i starter reading my first thought is shitty mounts. I have the bmr mounts. Great setup. Roll with them and i think your issue will be cured

morepowerjoe · 05-22-2021, 09:32 PM

Like I was saying my car shakes everywhere but not the engine. I originally thought the engine was shaking but I found out that by mistake that it was the suspension. The way I found out it was the suspension was by jacking up the front end by the frame and then started the car. To my amazement the shaking stopped that told me it was the suspension. I'm only telling you this in case you want to see if it's your engine mounts or maybe your suspension like mine was.

07-SRT · 05-23-2021, 06:00 AM

Quote:

Originally Posted by Rmkuper

Looking for some advice here. Since the the CAM upgrade car is shaking a lot and so is the motor. Not complaining I think it's awesome!!! Wife not so much

. The only problem is now I am getting some drone and rattle from the headers, gets worse on a turn. I'm thinking it's the motor shaking causing that. I'm still finalizing the tune so I am thinking some of the shaking will calm down after that. The question is I think I can get my hand son a set of BMR mounts at a good price. Do you think this might resolve the issue, What are the pros and cons? Thinking I might just do it anyway...

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The BMR poly mounts will cut down on the engine shaking, but the car will vibrate, especially at idle and low speeds. My poly mounts did come with washer for the option to install at OEM height

Modernmusclecar · 05-23-2021, 08:59 AM

New Cammed Camaro owner here. My headers didnt rub before or after the install. Take it back to the shop and tell them your concerns.They should help you.

eLeSthree · 05-24-2021, 06:07 AM

Quote:

Originally Posted by 07-SRT

The BMR poly mounts will cut down on the engine shaking, but the car will vibrate, especially at idle and low speeds. My poly mounts did come with washer for the option to install at OEM height

I installed a new set of BMR motor mounts in November. They did not come with spacers. My 2inch tsp headers hit the subframe. i called BMR and they said their MM's no longer come with spacers, so I had to make my own.

It would be unfair to say the BMR mounts lowered my engine, since they were installed on an aftermarket block with aftermarket heads, but just know, they do not come with the spacers anymore.

CamaroCracka · 05-24-2021, 07:28 AM

I have the Prothane mounts, and the engine sat a bit over a quarter inch lower after the install. Aftermarket mounts will increase NVH a fair amount, so keep that in mind.

Rmkuper · 05-24-2021, 08:30 AM

Quote:

Originally Posted by Modernmusclecar

New Cammed Camaro owner here. My headers didnt rub before or after the install. Take it back to the shop and tell them your concerns.They should help you.

I am the shop

that why I'm reaching out here for suggestions.

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Rmkuper · 05-24-2021, 08:33 AM

Quote:

Originally Posted by eLeSthree

I installed a new set of BMR motor mounts in November. They did not come with spacers. My 2inch tsp headers hit the subframe. i called BMR and they said their MM's no longer come with spacers, so I had to make my own.

It would be unfair to say the BMR mounts lowered my engine, since they were installed on an aftermarket block with aftermarket heads, but just know, they do not come with the spacers anymore.

That is what I have heard also. I have a buddy with a machine shop he might be able to fashion up a set of those for me. How long have you had them on and any issues?

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05-22-2021, 09:03 AM	#1
Rmkuper Drives: 2010 Camaro SS Join Date: Oct 2020 Location: Newburgh Posts: 164	Headers hitting after CAM install Looking for some advice here. Since the the CAM upgrade car is shaking a lot and so is the motor. Not complaining I think it's awesome!!! Wife not so much . The only problem is now I am getting some drone and rattle from the headers, gets worse on a turn. I'm thinking it's the motor shaking causing that. I'm still finalizing the tune so I am thinking some of the shaking will calm down after that. The question is I think I can get my hand son a set of BMR mounts at a good price. Do you think this might resolve the issue, What are the pros and cons? Thinking I might just do it anyway... Sent from my SM-F916U using Tapatalk

05-22-2021, 09:54 AM	#2
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,103	I can't remember did you change your torque converter and what size is your your headers? I think your shaking is normal because you know I have the SS1 and it shakes all over the place. It also jurks in gear a lot. And I know what you mean about the wife. All mine says this damn car it's stupid now. lol __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817

05-22-2021, 10:59 AM	#4
Chris49066SS Drives: 2010 SS L99 Join Date: Sep 2018 Location: Missouri Posts: 1,634	My 1 7/8 TSPs never hit the subframe but the 2" do. The 2" headers hit the passenger side subframe. I am finally about to take them off and dimple it, and I just got some 3 bolt flanges that I am going to weld onto the headers and a pair of custom 2' long dumps so I can ditch the exhaust altogether. For the BMR motor mounts, I understand that the solid aluminum upgrade will result in the motor and thus the headers being 1/4 inch lower than normal, unless you add a washer to keep it at normal height. To my knowledge, thats just for the solid mount, not the poly. __________________ Previous PB:11.079 @ 122.99mph.. New setup time: TBD The 11.079 pass: https://youtu.be/pz27Zq54t_E Build thread - www.camaro5.com/forums/showthread.php?t=555371

05-22-2021, 11:04 AM	#5
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,103	Yeah that would be a good idea to look at it on the lift. I know after a while I developed a little exhaust rattle after my cam install I think it's touching some place because I have a 3" exhaust system as well and we had to dimple it in a couple places under the tranny crossmember. It was touching on the crossmember bolts. But I know you said it was coming from your headers. You could have your exhaust in a bind somewhere too and it could be twisted a little in the wrong direction. You might want to unbolt it and repetition it a little by twisting the pipes in one direction or another as long as yours isn't fully welded (I hope not) __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817

05-22-2021, 12:22 PM	#6
Chris49066SS Drives: 2010 SS L99 Join Date: Sep 2018 Location: Missouri Posts: 1,634	Funny you say that, I had to grab the collector and muscle the hell out of it and pull it so it was off the subframe about 1/8 an inch but when its running and shaking and camming and under acceleration I still get rattling. __________________ Previous PB:11.079 @ 122.99mph.. New setup time: TBD The 11.079 pass: https://youtu.be/pz27Zq54t_E Build thread - www.camaro5.com/forums/showthread.php?t=555371

05-22-2021, 10:29 AM	#3
Rmkuper Drives: 2010 Camaro SS Join Date: Oct 2020 Location: Newburgh Posts: 164	It's actually SS2 VVT. Torque converter will come this winter with gears and mabe flywheel on the fence. Headers 1 7/8 3in pipes. I had to fight with them and ding a little to fit right. But I got under and looked around yesterday nothing apparent is rubbing. Was thinking of putting it on my buddies lift and letting it run to see if it's moving when it's running. Sent from my SM-F916U using Tapatalk

05-22-2021, 09:32 PM	#8
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,103	Like I was saying my car shakes everywhere but not the engine. I originally thought the engine was shaking but I found out that by mistake that it was the suspension. The way I found out it was the suspension was by jacking up the front end by the frame and then started the car. To my amazement the shaking stopped that told me it was the suspension. I'm only telling you this in case you want to see if it's your engine mounts or maybe your suspension like mine was. __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817

05-23-2021, 08:59 AM	#10
Modernmusclecar Drives: 2011 Camaro SS Join Date: Jul 2019 Location: Parts unknown Posts: 820	New Cammed Camaro owner here. My headers didnt rub before or after the install. Take it back to the shop and tell them your concerns.They should help you. __________________ EPS CUSTOM GRIND CAM....K@N CAI....VMAX PTB.....FRANKENSTEIN STAGE 2 HEADS ...1 7/8 STAINLESS POWER CATTED LONGTUBE HEADERS...CORSA XTREME 3 INCH CATBACK.....CIRCLE D 3800 Pro Series stall...391 gears.....Ported/modded GPI intake .Forgestar drag pack with Mickey Thompson ET street drag radials AGP PERFORMANCE DYNO TUNED. 463 WHP 428 FTLBS TORQUE.

05-24-2021, 07:28 AM	#12
CamaroCracka Drives: 2010 Turbo LS3 Join Date: Dec 2009 Location: Palm Bay, FL Posts: 2,734	I have the Prothane mounts, and the engine sat a bit over a quarter inch lower after the install. Aftermarket mounts will increase NVH a fair amount, so keep that in mind. __________________ 2010 SS - On3 kit with downpipe cutout, CTR 78/80, CompCam 239/251 620/632 122+4, E85, Z28 suspension and ZL1 diff with Outlaw axles. Gen6 ZL1/1LE brakes. 2011 Vert - 416/w 230/236 .612/.602 115lsa, 1LE suspension w/32mm rear bar. Z28 diff. ZL1 brakes.