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Author
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Topic: Dynomax super turbo mufflers?
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SundanceKid
Gearhead Posts: 1001
From: UT
Registered: Feb 2001
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posted 02-28-2003 04:26 PM
   
I am looking for some mufflers that have the same side inlet/outlet (like C5 Corvettes) The only ones I have found are made by Dynomax and they are of the Super Turbo type. I usualy like to get fully welded mufflers, but I cant find any with this type of setup.Any of you guys use these mufflers? Will they last long?
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fordfan
Gearhead Posts: 2871
From: Walla Walla, Wa, USA
Registered: Jun 99
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posted 02-28-2003 04:40 PM
they are really quiet.
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MrXerox
Gearhead Posts: 326
From: Oklahoma City, Oklahoma
Registered: Nov 2000
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posted 02-28-2003 04:47 PM
I have a set on my 71 Mach with a hot 351C and it is far from quiet. I picked these over the flowmasters because I wanted to be able to at least talk to a person in the car with me while driving on the street  IMO they are just loud when driving and REALLY loud when your foots in it and I personally like them.
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65hoss
Gearhead Posts: 283
From: Memphis, TN
Registered: Feb 2000
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posted 02-28-2003 07:48 PM
I ran Dynomax mufflers when my car was a street car. It was never about the sound. Power only. If I just wanted to sound fast I would have used flowmasters, but I wanted performance. They are quieter just driving, but they come to life when you drop the hammer.
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itlbrnmoff
Gearhead Posts: 746
From: Indianapolis,IN.USA
Registered: Nov 2002
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posted 03-01-2003 04:00 AM
Hmmm...I thought Flowmaster does offer performance? Isn't a Super Turbo just packed with fiberglass and gets louder when it burns out? In that case, why not just run straight pipes and save some money?
I remember reading an article in a car mag about muffler flow cfm that featured all of the popular brands of mufflers...I don't recall the actual numbers of the individual brands, but, the only Dynomax that outflowed a Flowmaster was the Race Dynomax muffler, pretty much a straight through design, so why even buy one?  ------------------
Low Dollar 1983 Mustang GT W/T-tops...
306 4bbl. T-5 3.45 trac-loc...it'll burn 'em off
1988 Lincoln LSC
5.0 auto full power
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Mpcoluv
Gearhead Posts: 945
From: Charlotte NC usa
Registered: Apr 2001
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posted 03-01-2003 09:14 AM
quote:
Originally posted by itlbrnmoff:
Hmmm...I thought Flowmaster does offer performance? Isn't a Super Turbo just packed with fiberglass and gets louder when it burns out? In that case, why not just run straight pipes and save some money?
I remember reading an article in a car mag about muffler flow cfm that featured all of the popular brands of mufflers...I don't recall the actual numbers of the individual brands, but, the only Dynomax that outflowed a Flowmaster was the Race Dynomax muffler, pretty much a straight through design, so why even buy one?
A flow bench does not simulate the actual operating conditions of an exhaust system.
A muffler is subjected to a series of high speed pressure pulses that form the exhaust flow. Conventional mufflers like dynomax absorb/dampen some of the pulses and make the engine sound quieter. The flowmaster design has a series of reflectors that cause sound cancellation due to the reflected wave being "out of phase" with the incoming pulse.
A friend that has done tons of muffler tests says that any of the "Hot Rod" type of articles that praise the flowmasters install them right at the header collector. If you move the muffler back 3 to 4 feet like a "real" exhaust system, you get much worse results.
Dynomax is the best bang for the buck, or Borla if you want to spend a ton of money.
BTW I was dumb enough to buy flowmasters several years ago. I like the sound outside of the car, but there is an annoying drone while in the car driving.....
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itlbrnmoff
Gearhead Posts: 746
From: Indianapolis,IN.USA
Registered: Nov 2002
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posted 03-01-2003 11:43 AM
Ditto on the annoying drone MP...but the article I was referring to did have the mufflers mounted to 4ft. sections of 2 1/2" straight pipe? At first, I was using 2 $14.99 Cherry Bomb? turbo mufflers, and they were nice and quiet with smooth power but I kinda went for the sound of the Flowmasters...talk about a drone, I had turndowns at the rearend, you couldn't hear yourself think.
But then I bought some tailpipes and it cured it somewhat...
I'm sure Dynomax is a good muffler, for a street car with a booming stereo, I'd just rather hear the engine some. ------------------
Low Dollar 1983 Mustang GT W/T-tops...
306 4bbl. T-5 3.45 trac-loc...it'll burn 'em off
1988 Lincoln LSC
5.0 auto full power
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Daniel Jones
Gearhead Posts: 495
From: St. Louis, MO
Registered: Aug 99
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posted 03-01-2003 07:25 PM
> Dynomax is the best bang for the buck, or Borla if you want to spend a
> ton of money. BTW An alternative to the Borla mufflers are the stainless steel Magnaflows.
They are a similar design straight through muffler and much cheaper.
I recently purchased a cat-back for my '87 Mustang GT. The Magnaflows
were only slightly more expensive than the aluminized steel Dynomax
offering. > I was dumb enough to buy flowmasters several years ago. I like the
> sound outside of the car, but there is an annoying drone while in
> the car driving..... Jim, what did you think of Sean's Pantera exhaust? I think those
quad glasspacks are a bit past their prime. Sounded great but I
doubt Officer Friendly would approve. Dan Jones
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