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Author Topic: New Muffler  (Read 4324 times)

r80rt

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New Muffler
« on: September 29, 2009, 11:53:44 PM »
Here is the Electra muffler on my C5, there is a noticeable increase in power and it sure does sound sweet! I used a Drag Speciality's heat shield to cover the joint and clean up the looks.  No changes were made to the air intake or anything else, It went on pretty easily. What do you think?
On the eighth day God created the C5, and it was better looking than anything on the planet.
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ace.cafe

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Re: New Muffler
« Reply #1 on: September 30, 2009, 12:20:09 AM »
Shweeeet!

I'll bet it's good for 4 hp.
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r80rt

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Re: New Muffler
« Reply #2 on: September 30, 2009, 12:29:35 AM »
The butt dyno says you're right ;D
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Cabo Cruz

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Re: New Muffler
« Reply #3 on: September 30, 2009, 12:48:19 AM »
"... What do you think?" r80rt

WOWZAA, BABY; WOWZAA; AND WOWZAA!!!
Long live the Bullets and those who ride them!

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Papa Juan

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r80rt

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Re: New Muffler
« Reply #4 on: September 30, 2009, 12:53:16 AM »
Three red Wowzaah's ? Man it doesn't get any better than that! Thanks Cabo :D
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Cabo Cruz

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Re: New Muffler
« Reply #5 on: September 30, 2009, 12:58:45 AM »
 :D :D :D
Long live the Bullets and those who ride them!

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Papa Juan

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Spitting Bull

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Re: New Muffler
« Reply #6 on: October 01, 2009, 09:57:46 AM »
Wow - that looks excellent!

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csbdr

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Re: New Muffler
« Reply #7 on: October 01, 2009, 01:34:52 PM »
You put it on the original header? What's your guess on how much weight you lost by getting rid of the original muffler?  I gotta do this....

1Blackwolf1

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Re: New Muffler
« Reply #8 on: October 01, 2009, 01:49:11 PM »
The butt dyno says you're right ;D
   The only Dyno that matters!  Will.
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JamesC5

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Re: New Muffler
« Reply #9 on: October 01, 2009, 02:03:12 PM »
Nice work mate! Looks and performance, can't complain eh!

So performance wise, is using an Electra muffler better than say the C5 upsweep silencer? 4hp is a pretty nice boost, what does the upswept give?

J
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t120rbullet

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Re: New Muffler
« Reply #10 on: October 01, 2009, 04:25:23 PM »
The butt dyno says you're right ;D

Sooooooooo, when you go to Starbucks to compare dyno charts with all your Harley buds how do you work the butt dyno in to the conversation?

Muffler looked (looks) good. Thanks for the idea!
CJ
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ScooterBob

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Re: New Muffler
« Reply #11 on: October 01, 2009, 05:39:45 PM »
This is about the rig that I used on the Stripey C5 ..... Tossing the original silencer on it probably takes about 40 pounds of dump truck ugly off the bike! The little silencer sounds best in the world and probably DOES free up at LEAST four or five HP's ..... it makes that little C5 QUITE perky when you twist the happy handle!  ;D
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Cabo Cruz

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Re: New Muffler
« Reply #12 on: October 01, 2009, 06:11:26 PM »
"This is about the rig that I used on the Stripey C5 ..... Tossing the original silencer on it probably takes about 40 pounds of dump truck ugly off the bike! The little silencer sounds best in the world and probably DOES free up at LEAST four or five HP's ..... it makes that little C5 QUITE perky when you twist the happy handle!"  ;D  ScooterBob

So, Br. Scoot, you also installed the Electra muffler on Sr. ScooterBob's Stripey and, because of EFI Magic Dust, I would say that you left the header pipe undisturbed!  The remaining questions are: Did you by chance also mess with a) the air filter/box or b) the PAV?  Along with all our colleagues, I look forward to receiving your answers!
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ScooterBob

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Re: New Muffler
« Reply #13 on: October 01, 2009, 09:46:42 PM »
Papa Juan - There IS no PAV on the C5! It runs plenty clean enough not to need that extra complexity. The airbox was left the same so as not to disturb the smooth air flow over the manifold absolute pressure sensor. As I explained in an earlier post - the volume of the stock airbox is huge to allow non-turbulent air to flow through the throttle body. This enables the MAP to "see" the most accurate air flow in the intake without reversion or other pressure pounding that a small volume airbox would create. I believe that changing the airbox and ignoring the MAP's sensitivity would lead to worse, not better performance. Opening up the "go outer", however, seems to be what the little engine REALLY likes!
Spare the pig iron - spoil the part!

Cabo Cruz

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Re: New Muffler
« Reply #14 on: October 01, 2009, 09:51:53 PM »
Thank you, brother, for a clear and concise response!!!
Long live the Bullets and those who ride them!

Keep the shiny side up, the boots on the pegs and best REgards,

Papa Juan

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r80rt

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Re: New Muffler
« Reply #15 on: October 01, 2009, 09:56:26 PM »
Nice work mate! Looks and performance, can't complain eh!

So performance wise, is using an Electra muffler better than say the C5 upsweep silencer? 4hp is a pretty nice boost, what does the upswept give?

J
I'm still waiting on the upswept exhaust, I've ordered and paid for one, if it ever arrives I'll let you know how it compares
On the eighth day God created the C5, and it was better looking than anything on the planet.
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r80rt

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Re: New Muffler
« Reply #16 on: October 01, 2009, 10:33:43 PM »
Sooooooooo, when you go to Starbucks to compare dyno charts with all your Harley buds how do you work the butt dyno in to the conversation?

Muffler looked (looks) good. Thanks for the idea!
CJ
Didn't you tell me that  you rode a Harley??  :D
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t120rbullet

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Re: New Muffler
« Reply #17 on: October 01, 2009, 10:53:12 PM »
Didn't you tell me that  you rode a Harley??  :D

Yup,
35 yrs worth of em. Always had something British around if I felt like riding though.
Even got a dyno chart around someplace.
Never been in a Starbucks though.
Never thought too highly of dyno charts or Starbucks.
My last HD convinced me that I'll never have another one, at least a Evo or a Twinkie.
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r80rt

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Re: New Muffler
« Reply #18 on: October 01, 2009, 11:02:38 PM »
Yeah, I gave up on HD's 20 years ago, Britt stuff was always more fun to ride. I've never seen a Starbucks or a dyno machine!
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t120rbullet

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Re: New Muffler
« Reply #19 on: October 02, 2009, 02:26:36 AM »
Not to change the subject but how did the seat on the C5 feel after 300 miles or so?
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r80rt

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Re: New Muffler
« Reply #20 on: October 02, 2009, 02:38:08 AM »
I really don't have any complaints with the seat, 300 miles wasn't bad at all. I've done several 2 to 3 hundred mile days on it comfortably.
« Last Edit: October 02, 2009, 02:41:41 AM by r80rt »
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ScooterBob

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Re: New Muffler
« Reply #21 on: October 02, 2009, 12:41:53 PM »
Didn't you tell me that  you rode a Harley??  :D

About ALL of us have tripped and fallen into the Harley trap at ONE time or another .... I still have a soft spot in my head for a generator Shovel model - with the "Full Floteing" saddle ..... talk about your big old COMFY seat! Hahaha!!
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csbdr

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Re: New Muffler
« Reply #22 on: October 02, 2009, 12:44:25 PM »
So where did you source just the muffler.  I looked at the online shop and only found full exhaust systems (unless I misread something, which is possible...)

t120rbullet

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Re: New Muffler
« Reply #23 on: October 02, 2009, 01:47:06 PM »
About ALL of us have tripped and fallen into the Harley trap at ONE time or another .... I still have a soft spot in my head for a generator Shovel model - with the "Full Floteing" saddle ..... talk about your big old COMFY seat! Hahaha!!

Ha, my favorite HD was a 68 FLH.
Had about 190 K on it at the end of my 18 yrs of riding it all over the country.
1 top to bottom overhaul and a few top end jobs. Only left me stranded once.
I wish I could put that saddle on my G5.
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ScooterBob

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Re: New Muffler
« Reply #24 on: October 02, 2009, 01:56:18 PM »
CJ - As I recall - you could use that Full Floteing saddle as a GARAGE for a G5! Hahaha! I think it's quite interesting that we BOTH have a soft spot in our head for the same bike .... I loved the tractor torque of that heep - and the fact that it was well tuned with its "primitive" points and Zenith carb - and would start with one mighty swat right off the bottom of the kicker - EVERY time. An Enfield is all that, for sure .... and maybe even a little more because you CAN get one through a standard doorway and into your living room ....  ;D
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ScooterBob

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Re: New Muffler
« Reply #25 on: October 02, 2009, 01:59:40 PM »
So where did you source just the muffler.  I looked at the online shop and only found full exhaust systems (unless I misread something, which is possible...)

That'd be CMW part number Z90373 .....
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csbdr

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Re: New Muffler
« Reply #26 on: October 04, 2009, 01:08:19 PM »
Thankks for the part number.  I put that into the online store and got 0 results.  I'll check the good  ol' paper catalog

The Garbone

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Re: New Muffler
« Reply #27 on: October 04, 2009, 01:17:34 PM »
You probably will have better luck just calling CMW..   Kinda retro ordering....
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Chris-G5

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Re: New Muffler
« Reply #28 on: October 16, 2009, 12:04:08 AM »
Just got done installing my new silencer on my G5, the same one Dannie put on his C5. Thanks for the inspiration Dannie! Also thanks to Dannie and ScooterBob for the tips in customizing the installation to make it fit. Looks, and sounds good!!! You can also feel the extra power in the butt dyno.  :D Still waiting on a heat shield to cover the seam between the head pipe and the silencer. Here is a couple pics of it and one of a few of my toys (to make you all jealous) ;D

r80rt

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Re: New Muffler
« Reply #29 on: October 16, 2009, 12:46:35 AM »
Chris, that muffler looks great on your bike! They do sound and perform great don't they? You made your good looking bike even better looking.
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JamesC5

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Re: New Muffler
« Reply #30 on: October 26, 2009, 09:44:22 AM »
My silencer is starting to get that ugly discolouration now, so I'm thinking I'll replace it.

The upswept one is now available, but I'm wondering if it has the same sort of problem as the standard one, if so I'd get a different one like the ones you've installed.
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Lmundy

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Re: New Muffler
« Reply #31 on: January 22, 2010, 10:09:55 PM »
Couldn't wait for the upswept muffler, and like the straight look better anyway, so I put a shorty muffler on my new C5 this weekend, just like the one in the photo at the first of this thread.  Thought I’d pass on some experiences in case this makes it go more easily for the next guy.  It was actually pretty easy for this non-mechanic and the look and sound is well worth it in my opinion.

First step, at least for those of you in the U.S., call Classic Motorworks.  You want CMW Item #Z90373, “RE Classis Silencer Short 500 #4”.   And while I know r80rt used a Drag Specialties heat shield to hide the joint between the head pipe and muffler, I’d stay on the phone long enough to order Item #Z91403, “Exhaust Heat Shield, Woodsman.”  It’s the right size, you get one-stop shopping, and it comes with a couple very handy clamps as noted below.

I had two challenges during the install.  One is that the hanger bracket supplied with the muffler doesn’t hang it straight on the C5.  Luckily it is made of fairly soft metal.  If you loosely install the frontmost bolt on the muffler and the nut on the footpeg that serves as the top hanger bolt, and straighten the muffler by hand, you will see that the rearmost bolt on the muffler really needs a hole about ½” above the one cut into the bracket.  I marked that position with a Sharpie, drilled a small pilot hole in the bracket, then enlarged it with a larger bit to about 5/16” to 3/8” (precision not needed, it’s not visible when installed), and the muffler came into perfect alignment with the headpipe.

Second challenge: the inner diameter of the muffler is slightly larger than the outer diameter of the headpipe, so you don’t get a snug fit, and the cinch bolt on the muffler won’t compensate for this.  At the same time, the exterior diameter of the muffler is too large for the clamps that come with the heat shield to hold it in place (but they are  just the right size for the headpipe).  I found an easy fix.  First, get about a 2” conventional clamp from a hardware or auto parts store or a neighbor’s car radiator to hold the heat shield on the muffler end.  Then cut one of the fancy Enfield heat-shield brackets right at the point it’s connected to the worm screw apparatus (I used the “squeeze with diagonal cutters, grunt, and then bend back and forth at the unsuccessful cut-line” approach).  You now have a shim pretty much exactly the size and diameter you need to seal between the header and muffler.  Place the Enfield shim you didn’t cut apart, around the header pipe just behind the standoff mount that was used for the old muffler’s heat shield and secure it, that gives you something to push against.  Then place the new shim around the headpipe, work it into the opening of the muffler, and smoosh the two together.  Should end up tight enough that even without the bracket, the pipe is tight and the muffler supports itself.

Remove the “good” Enfield bracket from the headpipe and place it in front of the old standoff mount, where it will then serve its intended purpose of holding the new heat shield in proper position.  Insert all nuts/bolts in the hanger bracket you drilled out in step #1 and tighten.  Tighten the clamp that’s incorporated into the front of the muffler.  Install the new heat shield using the Enfield clamp in front, and the larger hardware-store clamp in back, and clip off the extra part of the hardware-store clamp.  Admire your work.  Start the bike and grin.  Slightly louder, much throatier, much more attractive and classic-looking.  Stow the old muffler against the possibility you have to pass some emissions test and need the catalyst feature to do that, because this installation is easily reversible.

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Re: New Muffler
« Reply #32 on: February 03, 2010, 05:41:45 AM »
Can you please post pics . Thanks.

JamesC5

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Re: New Muffler
« Reply #33 on: February 22, 2010, 01:44:42 PM »
Anyone know if a Sixty 5 stock silencer would work? I'm trying to get hold of an upswept but have a friend with a spare Sixty 5 and am wondering if it'd be a worthwhile stop-gap

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r80rt

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Re: New Muffler
« Reply #34 on: February 24, 2010, 12:29:41 AM »
The Electra muffler went on my C5 easy enough, It should work for you.
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