Which exhaust for my 82SC 3.0L?

[svb]

wow I dont know about any of this hocus pocus but I just slapped on a Dansk premuffler and an M&K 1 in 1 out on my 3.2 and it sounds INSANE Car feels wicked fast too in conjunction with SW chip. Thanks Ben.

[mb911]

Originally Posted by trentwat

The design of the Trapp (not familiar with triad) allows for modifying the flow (tuning it of sorts) without the addit'l pipe and chambers you would find on a std. muffler. If configured properly (not sure how / maybe with a Dyno), couldn't the resistance of the Trapp be similar in "performance" to that of a muffler (or better), when you consider the extra distance/resistance created be a trditional muffler system? Is there any potential for harm?

I guess ?????? But brick wall vs flow through think play doah factory (if you have kids)

I once was told by one of the BIG guys in this industry that the super trapp was the best marketed item since sliced bread..

In all honesty though I hope it works out for those trying them out

[trentwat]

Thanks Ben...just noted your email address...

One other reason for the ST is a quiet hour issue at Road Atlanta. I was going to just go with the bypass pipe. From what I've heard, the PCA DEs for beginners is on Sunday mornings and if a car is too loud, they can't run. I would really hate to get yanked from the track over a noise issue.

I should have the vehicle back from the shop soon enough; I'll report back how it works, and even try to take a video/sound clip. I might be in the market for something different soon enough.

[mb911]

Originally Posted by trentwat

Thanks Ben...just noted your email address...

One other reason for the ST is a quiet hour issue at Road Atlanta. I was going to just go with the bypass pipe. From what I've heard, the PCA DEs for beginners is on Sunday mornings and if a car is too loud, they can't run. I would really hate to get yanked from the track over a noise issue.

I should have the vehicle back from the shop soon enough; I'll report back how it works, and even try to take a video/sound clip. I might be in the market for something different soon enough.

It should be noted in no way was I pushing my product by rather my personal dislike of the ST design thats all

[TexasPete2720]

Originally Posted by Carrera3.5L

The Monty appears to be a good muffler (relative to other available options), and it is also an expensive muffler. It is, however, not a perfect muffler.

The build quality does leave a bit to be desired for a muffler that costs $700-$800. While the body, inlet flanges and tips are all T304 stainless, most of the body is MIG welded rather than TIG welded. Not a performance difference I suppose, but certainly an aesthetic one! MIG welds are ugly and look like they are done by a high school autoshop class just learning the trade. Nice TIG welding is a work of art and is what many, many other muffler manufacturers for other makes employ in their systems.

My Monty had plenty of splatter and extra muffler body material where the inlet flange and muffler body were welded, I had to "modify" (i.e. grind) in order for it to be a nice straight through area free of splatter and material. Mine at least should have been stopped in QC and fixed. Below is a pic before:



I'm also convinced my 2-inlet, 2-outlet Monty must have been assembled on a Friday afternoon after a liquid lunch of Foster's, as my right side tailpipe was 1" longer than the left. Had to cut it down to match the left. How does that happen?

The Monty inlet flanges were also too short to work with George Narbel's headers/adaptor units and the muffler body was hitting the engine mount carrier when I tried to install it. My prior Dansk fit perfectly and visually had longer inlet flanges. I had to get some new 2" tubing and flanges, and than my colleague TIG welded them together at the correct length so the Monty fit properly. Don't know (but I have a guess) whose fault that was: the Monty, George's headers or my car.

Here is a pic of the muffler installed on a Carrera (which won't look too different on an SC):



The Monty muffler is slightly louder (i.e. deeper) on my application than the Dansk. The Dansk did not drone at all inside the car at any rpm and load, the Monty drones a little at lower rpms with some load on the motor. It is, however, not objectionable in my opinion. I have driven/sat in many other 911's with aftermarket exhausts that were completely unbearable for any period of time. I wouldn't hesitate to drive this car on a long road trip.

Ralph

Sweet lic Plate goes with the big tail

[TexasPete2720]

Im stock, with a Dansk single and it sounds ok.
I hear that Tubi Style is the way to go for sound and performance if you care to spend that kinda cash.
Anyone gone that route?

[trentwat]

Originally Posted by mb911

It should be noted in no way was I pushing my product by rather my personal dislike of the ST design thats all

I took it that you didn't like the ST product, and you are making an informed opinion...

[911mnypt]

M&K, single in - single out...and loving it. I don't get any droning sound just sure sweat music!

Cheers,

Richard

[davec]

I have a set of Pete Weber's phase 9's and phase 10's on my 3 liter. We spent a good day on the dyno and compared them to a few of the other systems, including megaphones. To my surprise, Pete's system gained 10HP over the megaphones. Muffler voodoo I am told.... At Lime Rock, with some of the most stringent sound levels of any of the tracks I frequent, I have not been black flagged for noise since putting them on.

One of the aforementioned systems in particular robbed 100hp of power from my car! 100HP!! I have the dyno sheets to prove it. If I could scan them in here I would.

This system's cost is measured in cubic dollars, but well worth it. And they are pretty. Yes, they are on a race car, but they are actually quiet at idle, and sing when opened up, and flow very well.

DaveC

[javadog]

Originally Posted by davec

One of the aforementioned systems in particular robbed 100hp of power from my car! 100HP!! I have the dyno sheets to prove it. If I could scan them in here I would.

This would be worth knowing. Do tell. I bet I know which one it is....

I'm also a big fan of the exhaust you have on your car. i think it's the best one out there, for a large flat six. Not really a street exhaust, though I suppose it's been done.

JR

[davec]

With the phase 10 it's really much quieter than the dansk that I re-piped.