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Technical Discussion Forum For the discussion of technical questions about Professional Cars and their repair and maintenance. Posting in this forum is limited to PCS Members and / or Site Supporters. We encourage all website users to become members of the Professional Car Society and / or become Site Supporter.

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  #11  
Old 10-05-2018, 09:11 AM
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Kurt Arends Kurt Arends is offline
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Quote:
Originally Posted by Paul Steinberg View Post
My 1962 has 2 1/2" pipes and glass pack mufflers, no resonators. It isn't obnoxious, but it grates on you when you are driving it. I am going to be replacing both glass packs with mufflers, and putting the resonators back on.
On my 1969, the exhaust was done by a previous owner, and they didn't reinstall the resonator. I had the shop install the resonator, and it doesn't make it any quieter. As I said on the phone, you can always add them later, if the car isn't as quiet as you would like.
What did the previous owner install for a muffler on your '69? If the resonator didn't make any difference, you must have issues ahead of the resonator.
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Old 10-05-2018, 11:26 AM
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That 69 was vary quite when i drove it. None of the 3, 72 i have owned have had the resonators on them all are guite cars. My thoughts on them are just one more thing to rust out. There were a number of small things different between the 88 and 98 in these years. None of which make any difference after CB cut them up and made something else out of it. Pick a good muffler not on of the threw ones and the larger pipe so it doesn't have to squeeze the gasses out. If you only drive the car short runs most of the time the resonator will rust out once a year. You just get tired of replacing it.
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Old 10-06-2018, 11:59 AM
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we moved the 72 combo to clear out the drive way and decided to put some miles on it while it was out from under the cover. made the mistake if checking the oil change sticker. according to the millage it not due yet. but we really need to drive this one a little more. this is why there is not resonator on it.
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Old 10-06-2018, 12:00 PM
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Old 10-06-2018, 06:29 PM
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Some random observations:

Resonators help to remove the deceleration rumble at least from my experience with manual transmission cars more than automatic transmissions.

The longer the tailpipe. the less boom or rumble when you let off the accelerator. Quite a difference when you run a car with or without a tailpipe in noise level.

Full size early 60's Ford and Mercury cars at least 352/390 CID had forward mounted resonators under the front seating area. They were short and square, the true muffler was mounted aft of the rear wheels outboard of the rear frame and inboard of the rear quarter panel. I ran a'64 Mercury convertible during my teen years through the resonators only, well until I got stopped for defective mufflers.

Also, when blocked heat riser intake gaskets are used in a car the exhaust note will also change. More harsh/raspy IMO. Not unpleasant, just different.
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