Author Topic: Sound Deading in the Engine Compartment  (Read 915 times)

Offline money pit

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Sound Deading in the Engine Compartment
« on: January 22, 2020 - 10:43:32 PM »
I have a 70 Barracuda with a 360, stock exhaust manifolds, dual exhaust with TTI mufflers. I insulated/sound deadened the interior/firewall and trunk. I now notice noise from the engine compartment.  What can I use to sound deaden the engine compartment?  I've seen the hood insulation pads. Is the molded or die cut mats better? Is there something similar to Dynamat I can use?  Thanks.




Offline 70chall440

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Re: Sound Deading in the Engine Compartment
« Reply #1 on: January 23, 2020 - 12:19:14 PM »
What do you mean "noise from the engine compartment"? Its a muscle car, you are supposed to hear the engine..

I don't think putting sound deadener on your hood it going to help all that much, I would try and find the stock mat and see if that gets you were you want to be, you could also double up the material on the firewall (inside).
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline Mopar Mitch

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Re: Sound Deading in the Engine Compartment
« Reply #2 on: January 23, 2020 - 02:43:59 PM »
The sound of the engine is music to my ears... I don't have a radio, either, as I want to hear the engine.. as I'm cruising or racing.

 :cheers:
Autocross/road racers go in deeper... and come out harder!

See  MOPAR ACTION MAGAZINE, AUGUST 2006 ISSUE for featured article and details on my autocross T/A.

Offline 70chall440

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Re: Sound Deading in the Engine Compartment
« Reply #3 on: January 23, 2020 - 07:45:11 PM »
I would agree  :2thumbs:
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline money pit

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Re: Sound Deading in the Engine Compartment
« Reply #4 on: January 24, 2020 - 12:01:26 PM »
With the stock exhaust manifold and the mufflers near the rear of the car, you don't hear the "muscle car" unless you are outside of the car. The engine noises I hear are the pulleys and the air cleaner.  I agree, the muscle car sound is what you want to hear. Eventually I will get headers, after I replace the steering box.  Thanks

Offline 70chall440

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Re: Sound Deading in the Engine Compartment
« Reply #5 on: January 24, 2020 - 12:11:26 PM »
I would look at getting and installing the hood insulator pad then. You could put sound deadener there but I think it would look crappy and a real pain to remove should you ever want to.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)