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View Full Version : I want more throaty sound.



gjtcodered
04-20-2006, 01:48 PM
Can someone tell me a good thing to do to get a rougher sound to my Maurder? Thanks, GJTcodered

Breadfan
04-20-2006, 01:56 PM
The tips from the factory have resonators in them. You can buy the tips "resonator delete". Wes (Innovative Interceptors, site sponsor) sells these - they are production units that were swiped prior to having the resonators installed.

Also, a muffler change - Flowmaster 40's are more old school sounding and possibly more "throaty", others typically use Magnaflows of the Ford Racing "dual-mode" mufflers. You can search on all 3 on this site to see everyone's opinions.

Also, headers and a full exhaust will give you more sound, but that's getting up there in the price context.

Blackened300a
04-20-2006, 02:11 PM
Go with the Res-Delete Tips like was Said, They are a great price and made a big difference in the sound of my mufflers

MarauderMark
04-20-2006, 02:15 PM
Go with the Res-Delete Tips like was Said, They are a great price and made a big difference in the sound of my mufflers

The tips from the factory have resonators in them. You can buy the tips "resonator delete". Wes (Innovative Interceptors, site sponsor) sells these - they are production units that were swiped prior to having the resonators installed..
Just like they said.You can check em out here....http://innovativeinterceptors.com/exdress.html

SergntMac
04-20-2006, 02:26 PM
Remember now, tone is affected by CID, and the Marauder engine is only a 281. Tone will get no deeper than any 4V Mustang.

Joe Walsh
04-20-2006, 02:31 PM
Remember now, tone is affected by CID, and the Marauder engine is only a 281. Tone will get no deeper than any 4V Mustang.


Mine does!....heh heh heh......:D

natedog1284
04-20-2006, 02:32 PM
Mine does!....heh heh heh......:D

Hmmmm..... another reason for a stroker kit!

Rider90
04-20-2006, 02:35 PM
I would have thought the resonators made it DEEPER but the delete tips made it LOUDER? Any thoughts on that...

Breadfan
04-20-2006, 02:36 PM
Remember now, tone is affected by CID, and the Marauder engine is only a 281. Tone will get no deeper than any 4V Mustang.

Yup, this is a correct statement. Looks can be deceiving, everyone who sees my engine and doens't know it's specs says the same thing "WOW that's a huge V8!"

It's actually a very small V8.

Certainly muffler styles will give you deeper tone, typically your chambered variety. If you search you'll see the opinions seem to state that the Flowmasters give a deeper tone than say the Magnaflows. I'd say res-delete is a great place to start though.

SergntMac
04-20-2006, 02:37 PM
Like I said...Size matters.

Smokie
04-20-2006, 02:50 PM
We have a member here in Florida that removed the mufflers and replaced with just straight pipes, I never expected that this would be possible with a smooth 32V DOHC little engine......it sounds like a freaking 350 cu in push rod Chevy engine.....on steroids.:D

SergntMac
04-20-2006, 02:57 PM
I would have thought the resonators made it DEEPER but the delete tips made it LOUDER? Any thoughts on that... Easy answer, Jason.

Ever watch a WW-II movie where Naval Captains crusing side by side in battle ships at sea shout at each other over a megaphone?

Looks like a traffic control cone without the flat base. A megaphone increases volume by manipulating vibration, but the speaker's voice doesn't get any deeper. Just louder, and able to travel greater distances with increased clarity. Removing the resonated OEM tips is like adding a megaphone to the exhaust. Volume goes up, but the tone doesn't change very much.

This same NHV principle is true throughout the entire exhaust system. Increase ID of the pipes and you increase the surface vibrations bounce in. Increase vibration and you increase volume. The principle continues to reveal why aftermarket mufflers seem to lower the tone, and it's the same principle that applies to audio systems. Just think of your aftermarket mufflers as sub-woofers that let exhaust gasses bounch more and glean out more vibration into the audible spectrum. However, there is a limit, no 281 will create the illusion of a big block, without an amp.

SergntMac
04-20-2006, 03:01 PM
it sounds like a freaking 350 cu in push rod Chevy engine.....on steroids.:D Just an indication of how restrictive the OEM exhaust can be, on any car.

Smokie
04-20-2006, 03:06 PM
Just an indication of how restrictive the OEM exhaust can be, on any car.

Yeap, that's why our engines respond so well to the full exhaust treatment, the deeper sound it's just icing on the cake.:D

Marauder_Santa
04-20-2006, 04:13 PM
I added the flowmaster 40's to my stock exaust system over a year ago - love the sound and increased the gas milage frrom about 19 to 23ish a gallon.

RR|Suki
04-20-2006, 04:27 PM
Hmmmm..... another reason for a stroker kit!

or go bore + stroke :D ;)

Redster
04-20-2006, 04:39 PM
To my ear the Mustang GT's seem to have a much louder and deeper sound. Maybe that's just because of I'm standing around watching one drive by rather than driving it. Can the MM's be modified to have the same sound?

RR|Suki
04-20-2006, 05:12 PM
To my ear the Mustang GT's seem to have a much louder and deeper sound. Maybe that's just because of I'm standing around watching one drive by rather than driving it. Can the MM's be modified to have the same sound?

http://www.mercurymarauder.net/showcase/misc.php?do=downloadfile&i=1341

that's with the res tips...

natedog1284
04-20-2006, 05:32 PM
or go bore + stroke :D ;)

Even better yet..... as soon as I get the $$$!

Rider90
04-20-2006, 05:37 PM
http://www.mercurymarauder.net/showcase/misc.php?do=downloadfile&i=1341

that's with the res tips...
I'm sold on it, thanks guys. What mufflers are those Suki?

RR|Suki
04-20-2006, 05:44 PM
I'm sold on it, thanks guys. What mufflers are those Suki?

That's my CID talking... I HAVE res tips not res delete, I want delete, but I'm afraid of how loud it'll end up. They are Magnaflow 18" cans.
Most of that sound is due to the bore and stroke.

DirtyDog
04-20-2006, 06:27 PM
To my ear the Mustang GT's seem to have a much louder and deeper sound. Maybe that's just because of I'm standing around watching one drive by rather than driving it. Can the MM's be modified to have the same sound?


Shorten the tail pipes will make it deeper. Take the hump out that goes over the differential.

KillJoy
04-20-2006, 06:30 PM
One local member removed his mufflers. He says there is wayyyyy tooo much cabin drone.

Add the Res-Delete Tips (extended 2" past the bumper). See what you think!

KillJoy

fastblackmerc
04-20-2006, 06:52 PM
Yup, this is a correct statement. Looks can be deceiving, everyone who sees my engine and doens't know it's specs says the same thing "WOW that's a huge V8!"

It's actually a very small V8.
Was at a cruise-in this past weekend. Parked next to a new-style Mustang Cobra. Same engine but the MM's bigger engine compartment made the engine appear bigger. Most people didn't believe it was the same engine.

ctrlraven
04-20-2006, 09:16 PM
One local member removed his mufflers. He says there is wayyyyy tooo much cabin drone.

Add the Res-Delete Tips (extended 2" past the bumper). See what you think!

KillJoy I don't know if your talking about me or not lol but I went a step further, did a rear exhaust section delete and had 60 degree angle side pipes off the h-pipe exiting right underneth the corner of the rear doors. i never heard it from outside the car but ask Joe Walsh since he has heard them but at cruising the drone was outragous but it was such a head tuner especially if i in-line shifted at redline. about a month later went back to my exhaust shop and got 2.5" piping from the h-pipe back and put my 40 series flows back on and res delete tips and had them extended out 1.5" past the rear bumper and it def got rid of the cruising drone but its still plenty loud to make someone rubber neck to see where the hell that sound is coming from. cant wait till i get either the DR cobra manifolds or kooks long tube headers.

bigslim
04-20-2006, 10:03 PM
Remember now, tone is affected by CID, and the Marauder engine is only a 281. Tone will get no deeper than any 4V Mustang.
I get a deep tone with the Flowmaster Delta 40's and the Delete Tips.

magindat
04-21-2006, 06:00 AM
Easy answer, Jason.

Ever watch a WW-II movie where Naval Captains crusing side by side in battle ships at sea shout at each other over a megaphone?

Looks like a traffic control cone without the flat base. A megaphone increases volume by manipulating vibration, but the speaker's voice doesn't get any deeper. Just louder, and able to travel greater distances with increased clarity. Removing the resonated OEM tips is like adding a megaphone to the exhaust. Volume goes up, but the tone doesn't change very much.

This same NHV principle is true throughout the entire exhaust system. Increase ID of the pipes and you increase the surface vibrations bounce in. Increase vibration and you increase volume. The principle continues to reveal why aftermarket mufflers seem to lower the tone, and it's the same principle that applies to audio systems. Just think of your aftermarket mufflers as sub-woofers that let exhaust gasses bounch more and glean out more vibration into the audible spectrum. However, there is a limit, no 281 will create the illusion of a big block, without an amp.

Mac, you knew I'd jump in when you mentioned audio systems. :beer:

The frequency of any sound can be lowered by slowing the wave. It is this principle that makes the 'folded horn' enclosure work at concerts. It is the same principle the make the 'transmission line' enclosure possible. It's also the same principle that makes a 2.4L with a tuned, scavenging exhaust sound as deep as ours. The deceleration of the the air and thus the wave travelling in it can be controlled. It's not easy on our cars, cuz the exhaust is so long. However, on shorter exhausts like 4-stroke atv's and ricers, it's easier. As the size of the pipe increases vs. the same amount of air (this is where displacement comes in) the air decelerates. As the size of the pipe increases, the resonant wave length also increases because of the longer trip from pipe wall to the opposite pipe wall. The net result is the human ear's PERCEPTION of a lower frequency. Of course, we can only go so far with pipe sizes and lengths under a car, so there IS a limit. To sound as deep as many would want vs. our pipe length, we'd have like 4-5" tails and 8" tips!

Displacement, if comparing to audio, is like the woofer size. An 18" woofer is cabaple of creating a larger air pressure front, and a longer wave (lower frequency) then say an 8". However, an enclosure can be built to make the 8" play LOWER than the 18". Of course, complication is the limiting factor. Therefore, given the parameters in which we must work exhaust, there's a limit to 'how low you can go'.

Oh yeah, there's only so much air moving to begin with (displacement), so as the sound gets lower in frequency, loudness decreases.

As for the megaphone, it 'amplifies' by directing all sound that would have normally radiated in a sphere down to a directional 'tube'. There's actually no real amplification, just a directionalization of sound that would normally be lost to other directions.

Resonators and flow thru (magnaflow) type mufflers work OPPOSITE of a megaphone. They ABSORB the spherically radiated sound and only allow the directional (with the air flow) sound to pass.

So, less absorbtion = louder.
Gradually increasing pipe size = lower.

Delete tips = louder and a tiny, tiny bit lower dur to pipe size increase in the last 2 ft. The amount lower is very small due to the small increase for a relatively short distance compared to the rest of the pipes.

Whew! That was fun!

As Mac sez, 'Carry on, Gents.'

SergntMac
04-21-2006, 06:14 AM
And I thought you were just another pretty face...

RR|Suki
04-21-2006, 06:40 AM
And I thought you were just another pretty face...

LOL thread winner!!!!

gjtcodered
04-23-2006, 01:40 PM
How much did the flowmaster 40's cost? Can they do it at the dealership? Gjtcodered.

Rider90
04-23-2006, 01:45 PM
I'm sold on it, thanks guys. What mufflers are those Suki?
Alright I changed my mind due to all the posts mentioning drone. Spintech Pro Streets in the mail...

TechHeavy
04-23-2006, 01:50 PM
Jason, Flowmaster 40's and delete tips as others have mentioned. I have it, and love it! Sounds great without too much noise on highway. Just right.

Rider90
04-23-2006, 01:53 PM
Jason, Flowmaster 40's and delete tips as others have mentioned. I have it, and love it! Sounds great without too much noise on highway. Just right.
I had 40's on my Crown Vic. We are indeed talking about a different beast, but I did not like the drone at 40 MPH nor the highway drone. Not saying you have any of the mentioned, but I agree the idle sound is very nice with Flowmaster 40's but I noticed the sound decreases at WOT. The Spintech Sportsman Streets I currently have give great sound all around with zero drone at any speed believe it or not. I can hardly wait to see what the Pro-Streets sound like, its supposed to be the next step up and their most popular muffler. I'll post clips but I figured since I have a new [whining] noise under the hood I should advertise a little more :)

Great to see you Back, Dave.

TechHeavy
04-23-2006, 02:14 PM
Good to be back Jason, and hear from you! I'm getting excited already with all the big tire posts and cool after-market spoilers.... lol. It's gonna be a fun summer.
Uh, back on topic, I had my delete tips extended about an inch and a half past the rear bumper. Maybe that helps reduce the cabin drone?? Anyway, it's all good.

STLR FN
04-23-2006, 02:58 PM
...snip... The Spintech Sportsman Streets I currently have give great sound all around with zero drone at any speed believe it or not. I can hardly wait to see what the Pro-Streets sound like, its supposed to be the next step up and their most popular muffler. I'll post clips but I figured since I have a new [whining] noise under the hood I should advertise a little more :)

Great to see you Back, Dave.Jason what are you doing with your Sportsman Streets? I might be interested in them.

johnfain
04-23-2006, 03:17 PM
Flowmaster Original 40's

Rider90
04-23-2006, 06:19 PM
Jason what are you doing with your Sportsman Streets? I might be interested in them.
I'll tell the muffler shop to keep them in good shape when they cut them off. I'll take some pictures for you and you can make me an offer. If you have not already, find my thread about the Spintech mufflers and check out the videos. I would go and snap a better video for you but the blower whine might cover some of the sound up :rolleyes:

Thanks

Bluerauder
04-23-2006, 06:21 PM
Can someone tell me a good thing to do to get a rougher sound to my Maurder?
What's a "Maurder" ?? :rofl:

Rider90
04-23-2006, 06:45 PM
Good to be back Jason, and hear from you! I'm getting excited already with all the big tire posts and cool after-market spoilers.... lol. It's gonna be a fun summer.
Uh, back on topic, I had my delete tips extended about an inch and a half past the rear bumper. Maybe that helps reduce the cabin drone?? Anyway, it's all good.
I have my resonated tips extended, but I still think delete tips will be in my future...

:coolman:

hdwrench
04-23-2006, 08:22 PM
i have had the 40's resonater delete setup since new basically... i like it, could always be louder. then again i listen to harleys all day INDOORS...

http://img519.imageshack.us/img519/1905/dsc0019934gn.jpg (http://imageshack.us)

http://img223.imageshack.us/img223/2164/dsc0021535on.jpg (http://imageshack.us)