Home Built Muffler? - JeepForum.com

Reply
 
LinkBack Thread Tools
post #1 of 43 Old 12-23-2013, 03:28 PM Thread Starter
underpowered
Bouncin' on a Budget
 
underpowered's Avatar
1998 ZJ 
 
Join Date: Nov 2005
Location: northern kentucky
Posts: 3,037
Home Built Muffler?

anyone ever built their own muffler?

yes i do realize the cost effectiveness of this is terrible considering the numerous muffler options and relatively low cost of many of them. i want it more the the novelty than anything else really. That, and i am building the entire rest of the exhaust myself including the headers, so why not the mufflers as well.

thoughts, opinions, any input at all?


1998 ZJ-- lowered a touch

2005 GMC 2500HD 496 C.I.

Fat Amy-1989 K5 blazer. Linked, lifted, 38.5's on won tons. Big Girls can play in the woods too.
underpowered is offline  
Sponsored Links
Advertisement
 
post #2 of 43 Old 12-23-2013, 05:06 PM
AtTheHelm
Registered User
 
Join Date: Nov 2012
Location: South Lake Tahoe
Posts: 864
Sounds like a fun project to me. Getting the chambers right might be hit or miss.
AtTheHelm is offline  
post #3 of 43 Old 12-23-2013, 05:56 PM
BESRK
GROUND POUNDER
 
BESRK's Avatar
1980 CJ5 
 
Join Date: Nov 2002
Location: Newport News, VA
Posts: 12,285
I would look for a dissected Flowmaster (or something similar) and basically copy the design. If you can scale the drawing, you should be able to get pretty close on the dimensions.

It would actually be pretty simple to do if you have CNC Plasma/Laser/Waterjet capability. You can cut the top/bottom halves with all the little "slots" for the baffles to lock into. Just cut the baffles with "tabs" to fit into the upper/lower slots. Drop it all together and weld the slots closed.. locking the baffles in place. Would be a fun project.. especially in polished 304 Stainless

'80 CJ5 w/AMC360, T176, D44 w/Detroit 4.56, RE 4" YJ lift and 35s..



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
BESRK is offline  
post #4 of 43 Old 12-23-2013, 08:44 PM Thread Starter
underpowered
Bouncin' on a Budget
 
underpowered's Avatar
1998 ZJ 
 
Join Date: Nov 2005
Location: northern kentucky
Posts: 3,037
i just happen to have a few piece of polished stainless laying around and and old flow master to cut up as well. but i want to modify the design a bit to possibly get a different sound out of them. possibly try an arc instead of the wedge flowmaster uses. who knows what i will end up with, but it will sure be unique.

1998 ZJ-- lowered a touch

2005 GMC 2500HD 496 C.I.

Fat Amy-1989 K5 blazer. Linked, lifted, 38.5's on won tons. Big Girls can play in the woods too.
underpowered is offline  
post #5 of 43 Old 12-24-2013, 07:41 AM
andrewmacc
Registered User
1998 XJ Cherokee 
 
Join Date: May 2010
Location: BC Canada
Posts: 608
http://www.expeditionportal.com/foru...r-own-mufflers

"Chilton's and Haynes are for brake jobs, oil changes and starting campfires." - CJ7-Tim
'98 2dr/5spd Cherokee rockin' on tons, 5.9L V8 Magnum, HP60/14b, 5.13:1, locked, 14" coilovers, Dana 300 4:1 twin stick... oink oink!
andrewmacc is offline  
post #6 of 43 Old 12-24-2013, 08:51 AM Thread Starter
underpowered
Bouncin' on a Budget
 
underpowered's Avatar
1998 ZJ 
 
Join Date: Nov 2005
Location: northern kentucky
Posts: 3,037
Quote:
Originally Posted by andrewmacc View Post
thats pretty cool, thanks.


his is built much thinner than mine will be. 18ga simply won't cut it IMO but with all his internal baffles it will strengthen the inside considerably but i plan on building mine more like a flowmaster, which his in no way resembles any flowmaster i have ever seen.

1998 ZJ-- lowered a touch

2005 GMC 2500HD 496 C.I.

Fat Amy-1989 K5 blazer. Linked, lifted, 38.5's on won tons. Big Girls can play in the woods too.
underpowered is offline  
post #7 of 43 Old 12-24-2013, 11:11 AM
Zeppelin
Registered User
1996 ZJ 
 
Join Date: May 2012
Location: Mission Viejo
Posts: 31
You could also use a off the shelf muffler and build a custom shell around it and then say you built it yourself
Zeppelin is offline  
post #8 of 43 Old 12-24-2013, 01:02 PM Thread Starter
underpowered
Bouncin' on a Budget
 
underpowered's Avatar
1998 ZJ 
 
Join Date: Nov 2005
Location: northern kentucky
Posts: 3,037
Quote:
Originally Posted by Zeppelin View Post
You could also use a off the shelf muffler and build a custom shell around it and then say you built it yourself
and what fun would that be?

1998 ZJ-- lowered a touch

2005 GMC 2500HD 496 C.I.

Fat Amy-1989 K5 blazer. Linked, lifted, 38.5's on won tons. Big Girls can play in the woods too.
underpowered is offline  
post #9 of 43 Old 12-24-2013, 04:45 PM
Diamond-x
Registered User
1991 XJ Cherokee 
 
Join Date: Aug 2008
Location: Socal
Posts: 1,216
Here's a video of Rick Bacon from Power Block TV building a muffler:

http://www.powerblocktv.com/two-minu...make-a-muffler


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Diamond-x is offline  
post #10 of 43 Old 12-24-2013, 05:32 PM
BESRK
GROUND POUNDER
 
BESRK's Avatar
1980 CJ5 
 
Join Date: Nov 2002
Location: Newport News, VA
Posts: 12,285
Yeah.. if there's a chance the muffler is gonna be dragged over obstacles (like rocks), I'd probably lean more toward something like 14ga.. maybe even skin the underside with 1/8" or 3/16".

I had an old Flowmaster that had been dragged over the rocks to the point where you could see the baffle "outlines" in the mangled lower skin.

'80 CJ5 w/AMC360, T176, D44 w/Detroit 4.56, RE 4" YJ lift and 35s..



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
BESRK is offline  
post #11 of 43 Old 12-26-2013, 12:09 PM
Lifted96ZJ
Registered User
1973 CJ5 
 
Join Date: Mar 2010
Location: Livermore, CA
Posts: 207
You could also take a straight tube, drill it a bunch of times then build a box around it and even pack it with fiberglass to keep it quiet. This is how Dynomax builds some of theirs and I believe a few other brands are similar.

I've thought about this multiple times. I've got a few designs in my head but never put it on paper

Build Thread
http://www.jeepforum.com/forum/f8/1973-cj5-trail-rig-hunting-rig-build-1403107/
Lifted96ZJ is offline  
post #12 of 43 Old 12-26-2013, 03:08 PM
BESRK
GROUND POUNDER
 
BESRK's Avatar
1980 CJ5 
 
Join Date: Nov 2002
Location: Newport News, VA
Posts: 12,285
You can pick up high temp insulation (Roxul) from McMaster Carr. I bought a bunch of it a couple years back for my powder coating oven project (still waiting in the wings.. )

'80 CJ5 w/AMC360, T176, D44 w/Detroit 4.56, RE 4" YJ lift and 35s..



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
BESRK is offline  
post #13 of 43 Old 12-26-2013, 05:15 PM Thread Starter
underpowered
Bouncin' on a Budget
 
underpowered's Avatar
1998 ZJ 
 
Join Date: Nov 2005
Location: northern kentucky
Posts: 3,037
Quote:
Originally Posted by Lifted96ZJ View Post
You could also take a straight tube, drill it a bunch of times then build a box around it and even pack it with fiberglass to keep it quiet. This is how Dynomax builds some of theirs and I believe a few other brands are similar.

I've thought about this multiple times. I've got a few designs in my head but never put it on paper
a glasspack is a simple design and would be easy to execute. i am thinking of a chambered (flowmaster) style with a unique internal baffle system. something truly my own.

1998 ZJ-- lowered a touch

2005 GMC 2500HD 496 C.I.

Fat Amy-1989 K5 blazer. Linked, lifted, 38.5's on won tons. Big Girls can play in the woods too.
underpowered is offline  
post #14 of 43 Old 12-26-2013, 05:41 PM
BESRK
GROUND POUNDER
 
BESRK's Avatar
1980 CJ5 
 
Join Date: Nov 2002
Location: Newport News, VA
Posts: 12,285
I think the way to attach this, is by copying a successful (in desired sound) design, and then modifying it from there. Otherwise, it might take several revisions to get what you're looking for. That could eat up quite a bit of time/money.

'80 CJ5 w/AMC360, T176, D44 w/Detroit 4.56, RE 4" YJ lift and 35s..



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
BESRK is offline  
post #15 of 43 Old 12-26-2013, 06:02 PM Thread Starter
underpowered
Bouncin' on a Budget
 
underpowered's Avatar
1998 ZJ 
 
Join Date: Nov 2005
Location: northern kentucky
Posts: 3,037
Quote:
Originally Posted by BESRK View Post
I think the way to attach this, is by copying a successful (in desired sound) design, and then modifying it from there. Otherwise, it might take several revisions to get what you're looking for. That could eat up quite a bit of time/money.
that is basically the plan. i know what the insides of both a flowmaster 10 series and a 40 series looks like. i plan on essentially mocking their design but with my own style baffle. maybe look at others (spintec, hooker aero chamber, thrust, Cherry bomb) and kind of see what makes each one different while all still being a chambered muffler. then use one base idea but with my own twist.

current thinking is use a flowmaster 10 series design, but possibly use a curved baffle instead of the angle baffle flowmaster uses.

1998 ZJ-- lowered a touch

2005 GMC 2500HD 496 C.I.

Fat Amy-1989 K5 blazer. Linked, lifted, 38.5's on won tons. Big Girls can play in the woods too.
underpowered is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome