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Tech Area => General Buick Tech => Topic started by: Scoobum on June 28 2015, 07:27:47 PM

Title: Muffler Comparison Chart
Post by: Scoobum on June 28 2015, 07:27:47 PM
 :)
Title: Re: Muffler Comparison Chart
Post by: good2win22 on June 28 2015, 09:37:32 PM
I would like to have been there for the testing.  Got a link for 3inch?
Title: Re: Muffler Comparison Chart
Post by: Scoobum on June 28 2015, 10:00:17 PM
No, I've been posting stuff I've had bookmarked for awhile. I've got the ATR 3" dual SS with Pitbulls...so I think I'm okay. :)
Title: Re: Muffler Comparison Chart
Post by: earlbrown on June 28 2015, 10:14:58 PM
If I'm reading that right, Flowmaster owns the shitty muffler market.


Kinda cool how Dynomax surpassed the laws of physics too.
Title: Re: Muffler Comparison Chart
Post by: Steve Wood on June 28 2015, 11:06:22 PM
Yep, they have a monopoly on that

Now, we sit back and wait for someone to tell us that backpressure is necessary to keep from burning the valves
Title: Re: Muffler Comparison Chart
Post by: earlbrown on June 29 2015, 02:08:04 AM
I cringe everytime I hear the word "backpressure".
Title: Re: Muffler Comparison Chart
Post by: motorhead on June 29 2015, 11:14:45 PM
Unfortunately this is old data; there are so many new mufflers on the market that work as well or better for the money.

There is always a trade off in flow vs. power vs. sound.
Title: Re: Muffler Comparison Chart
Post by: earlbrown on June 30 2015, 01:51:43 AM
That's the cool things about turbos....       


...dump that shit into a straight pipe and let it fly.
Title: Re: Muffler Comparison Chart
Post by: daveismissing on June 30 2015, 02:38:07 PM
Hey, they didn't test my stock Walker for a baseline
Title: Re: Muffler Comparison Chart
Post by: TexasT on June 30 2015, 08:14:11 PM
I used to sell some Chinese flowmaster knock offs called flowsound. I thought the worked at least as well as the flowmaster. I'm still running the stock crossflow. I do have a dump. It is worth a tenth or two when you open it. And the sound is real cool too according to my son. I hope for a stainless system One of these days.   

Www.buickgn.com/CatBack.htm (http://Www.buickgn.com/CatBack.htm)
Title: Re: Muffler Comparison Chart
Post by: Scoobum on June 30 2015, 08:27:24 PM
Too nice an exhaust system for my old POS. :)
Title: Re: Muffler Comparison Chart
Post by: good2win22 on June 30 2015, 08:35:38 PM
Saving my nickels for this setup. I believe Gary runs it and I had it on the white T.  Single to dual crossover. http://rjcracing.com/product/exhaust-systems-2/ (http://rjcracing.com/product/exhaust-systems-2/)
Title: Re: Muffler Comparison Chart
Post by: Scoobum on June 30 2015, 08:58:13 PM
Saving my nickels for this setup. I believe Gary runs it and I had it on the white T.  Single to dual crossover. http://rjcracing.com/product/exhaust-systems-2/ (http://rjcracing.com/product/exhaust-systems-2/)

I was just about to order that exhaust from Jason when the ATR setup came available from a friend in Montreal. :)
Title: Re: Muffler Comparison Chart
Post by: GavinHunyady on July 01 2015, 09:09:55 AM
I've been trying to order the RJC setup for months, they havent been able to get someone to bend the tubes I guess.


now that you mention it, its about time I call and see how they are coming with that.


I'm really close to fabbing my own with a dynomax vt 3" feeding into a stock location crossover. Since the crossover muffler is long gone on my car, can someone show pics of the mounting used by the stock muffler? I've searched all over and found nothing.


So far I have my "test pipe" which is a ATR pitbull with a catalyst flange welded to it, and I have a piece of an ATR 3" single shot that I'll run to the dynomax VT, then I need to fab mounts for the stock location, and pipes to get over the axle.
Title: Re: Muffler Comparison Chart
Post by: motorhead on July 01 2015, 09:36:58 AM
The custom 4" system on my car with a huge Magnaflow sounds about as good as you can get for such a large tube; like boat idling in the water.
Title: Re: Muffler Comparison Chart
Post by: motorhead on July 01 2015, 09:41:07 AM
I'm really close to fabbing my own with a dynomax vt 3" feeding into a stock location crossover. Since the crossover muffler is long gone on my car, can someone show pics of the mounting used by the stock muffler? I've searched all over and found nothing.

Does this help?

http://www.gardnerexhaust.com/1987-buick-grand-national-exhaust-system.html (http://www.gardnerexhaust.com/1987-buick-grand-national-exhaust-system.html)
Title: Re: Muffler Comparison Chart
Post by: Steve Wood on July 01 2015, 11:00:11 AM
this is what I have on the challenger  http://www.jegs.com/i/Dynomax/289/24222/10002/-1 (http://www.jegs.com/i/Dynomax/289/24222/10002/-1)
Title: Re: Muffler Comparison Chart
Post by: Scoobum on July 01 2015, 11:10:29 AM
this is what I have on the challenger  http://www.jegs.com/i/Dynomax/289/24222/10002/-1 (http://www.jegs.com/i/Dynomax/289/24222/10002/-1)

Two words. Straight through.
Title: Re: Muffler Comparison Chart
Post by: Steve Wood on July 01 2015, 11:23:19 AM
I don't feel the need for conversation to fill the silence :D
Title: Re: Muffler Comparison Chart
Post by: Scoobum on July 01 2015, 02:15:00 PM
I don't feel the need for conversation to fill the silence :D

That's why I have no radio in my GN. The Pitbulls barking at WOT are music to my ears. :rock:
Title: Re: Muffler Comparison Chart
Post by: motorhead on July 01 2015, 02:48:42 PM
this is what I have on the challenger  http://www.jegs.com/i/Dynomax/289/24222/10002/-1 (http://www.jegs.com/i/Dynomax/289/24222/10002/-1)

Same on my Monte.  Loudest mufflers ever... 133dB IIRC.
Title: Re: Muffler Comparison Chart
Post by: earlbrown on July 01 2015, 03:31:09 PM
this is what I have on the challenger  http://www.jegs.com/i/Dynomax/289/24222/10002/-1 (http://www.jegs.com/i/Dynomax/289/24222/10002/-1)

That's what I have on my ATR single shot, except it was called a Race Magnum back then.

    Bad part is that it killed off some whistle but didn't make the car quieter.

If it's ever off, I'll put putting a piece of stainless and a couple band clamps in its place.
Title: Re: Muffler Comparison Chart
Post by: GavinHunyady on July 01 2015, 08:57:03 PM
I thought about going the 4" route, but I want it to be quiet so we can drive the car for more than an hour without being sick of it. That is really the main thing that I miss from when the car was stock.
Title: Re: Muffler Comparison Chart
Post by: GavinHunyady on July 01 2015, 10:24:59 PM
I'm really close to fabbing my own with a dynomax vt 3" feeding into a stock location crossover. Since the crossover muffler is long gone on my car, can someone show pics of the mounting used by the stock muffler? I've searched all over and found nothing.

Does this help?

http://www.gardnerexhaust.com/1987-buick-grand-national-exhaust-system.html (http://www.gardnerexhaust.com/1987-buick-grand-national-exhaust-system.html)




Yes it does... sort of. I can't picture how those mount to the factory mounts that are still on my car, though I can very confident that I could fab those up.
Title: Re: Muffler Comparison Chart
Post by: good2win22 on July 01 2015, 11:15:03 PM
I thought about going the 4" route, but I want it to be quiet so we can drive the car for more than an hour without being sick of it. That is really the main thing that I miss from when the car was stock.
I think you'll be happy with the RJC setup.  I was surprised at how quiet it was after looking thru the muffler and then installing it
Title: Re: Muffler Comparison Chart
Post by: earlbrown on July 02 2015, 02:36:36 AM


Does this help?

http://www.gardnerexhaust.com/1987-buick-grand-national-exhaust-system.html (http://www.gardnerexhaust.com/1987-buick-grand-national-exhaust-system.html)

Those are for metric cars from Canadia where the downpipe is on the drivers si...   errrr....   port side.
Title: Re: Muffler Comparison Chart
Post by: GavinHunyady on July 02 2015, 08:38:43 AM
I thought about going the 4" route, but I want it to be quiet so we can drive the car for more than an hour without being sick of it. That is really the main thing that I miss from when the car was stock.
I think you'll be happy with the RJC setup.  I was surprised at how quiet it was after looking thru the muffler and then installing it


wait! you have one already? When did you get it?
Title: Re: Muffler Comparison Chart
Post by: good2win22 on July 02 2015, 09:00:02 AM
I thought about going the 4" route, but I want it to be quiet so we can drive the car for more than an hour without being sick of it. That is really the main thing that I miss from when the car was stock.
I think you'll be happy with the RJC setup.  I was surprised at how quiet it was after looking thru the muffler and then installing it


wait! you have one already? When did you get it?
I had it on my white T.  Wish I had it on the limited
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