Straight pipes or not? - Page 3 - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
VN750 General Discussion

 4Likes
Reply
 
LinkBack Thread Tools Display Modes
post #21 of 42 (permalink) Old 07-18-2012, 11:55 PM
Chucklehead
 
dragon159's Avatar
 
Join Date: Dec 2007
Location: Poynette WI
Posts: 1,050
iTrader: (3)
 
When I designed my system I wanted to give it a little more "growl" but not obnoxious, even though I will be the first to admit I am a bit of an a$$#ole, but recovering. I made the "muffler" out of 24" of 3 inch pipe and made an 18" baffle to fit in it. Gives a little growl but doesn't make babies cry when I go by.
my $.023

87 vn750at least that is what the frame #'s say
"Squirrel Bike" aka Jersey

Rat bike with a good PR agent

shaved and coastered
2 into 1 exhaust
rear 170 and front 110
Relocated R/R
custom dash with voltmeter
Spitfire windscreen
Plutonium plugs
Recovered seat without "butt hammers"
More to come
Praise to the Parts Goddess Crobins for needed things

When someone tells me "Great minds think alike" all I can think is "You Pervert"
dragon159 is offline  
Sponsored Links
Advertisement
 
post #22 of 42 (permalink) Old 07-19-2012, 12:08 AM
Registered User
 
Join Date: Aug 2011
Location: GreenwoodFrickinLakeNY
Posts: 10,354
iTrader: (8)
   
Check my Paughco link in the other thread...besides, any used springer that fits a newer Sporty, will fit ours...gotta talk to my buddy tomorrow....he may have one...



Wolfie is offline  
post #23 of 42 (permalink) Old 07-19-2012, 02:33 AM Thread Starter
Senior Member
 
Join Date: Jul 2012
Posts: 384
iTrader: (-3)
 
I'm not sure if the centers in my Dyna mufflers are catalytic converters or not. They have a center in them that looks like the honeycomb center of a converter.
You can't see through them, and they come off of an injected bike.
It appears there is some sort of a catalyst in there, but not sure what it is. so I'm going to knock the centers out of them, and see how they sound.
I was at one time leaning towards a set of super Trapp mufflers, but they are so damned expensive. So I will experiment with these mufflers, and see what they sound like in the end. If I ruin them I will just throw them in the trash, and start over.
I have a neighbor who has an older Harley and he has straight pipes with fishtail ends. They are true duals and the pipes go all the way to the end of the rear wheel, and they sound pretty loud, but he rarely ever gets on it in town or in the neighborhood.
When I was younger, I used to own a 72 Ford F150 with a built 390 with headers, 3 inch pipes with 5 inch stacks running through the bed right behind the cab with no mufflers. She was loud, but she sure sounded good.
I guess as I get older I want it somewhat quieter. My hearing isn't the best, but all the loud noises over the span of my life hasn't hurt my hearing too awful bad. I worked at a 1/4 mile racetrack, and I never wore hearing protection. Now I deal with the eternal burnout syndrome. Sucks.
TSmith68 is offline  
 
post #24 of 42 (permalink) Old 07-19-2012, 03:04 AM
FREEBIRDS MC CENTRAL NY
 
OleDirtyDoc's Avatar
 
Join Date: May 2011
Location: Norwich,NY
Posts: 16,040
iTrader: (0)
     
Garage
Send a message via Yahoo to OleDirtyDoc
Quote:
Originally Posted by TSmith68 View Post
I'm not sure if the centers in my Dyna mufflers are catalytic converters or not. They have a center in them that looks like the honeycomb center of a converter.
You can't see through them, and they come off of an injected bike.
It appears there is some sort of a catalyst in there, but not sure what it is. so I'm going to knock the centers out of them, and see how they sound.
I was at one time leaning towards a set of super Trapp mufflers, but they are so damned expensive. So I will experiment with these mufflers, and see what they sound like in the end. If I ruin them I will just throw them in the trash, and start over.
I have a neighbor who has an older Harley and he has straight pipes with fishtail ends. They are true duals and the pipes go all the way to the end of the rear wheel, and they sound pretty loud, but he rarely ever gets on it in town or in the neighborhood.
When I was younger, I used to own a 72 Ford F150 with a built 390 with headers, 3 inch pipes with 5 inch stacks running through the bed right behind the cab with no mufflers. She was loud, but she sure sounded good.
I guess as I get older I want it somewhat quieter. My hearing isn't the best, but all the loud noises over the span of my life hasn't hurt my hearing too awful bad. I worked at a 1/4 mile racetrack, and I never wore hearing protection. Now I deal with the eternal burnout syndrome. Sucks.
degoated mine and have dyna mufflers with a few holes drilled in the baffle.sounds pretty good

ONE RATS ASS GIVEN PER POST
Support your local FREEBIRDS MC
1986/5 Vn700/750 Frankenfook cross eyed bitch "Mellisa Fayhe"
I am a BIKER and i'm proud.FREEBIRDS MC CENTRAL NY

lowered with progessive 412 10" shocks
rejetted for K/N Pods part#rc 2340
sportster seat

'I didn't lose my mind.i gave it away

BRING BACK WOLFIE."Peace and Carrots"RIP
"And I'm free...as a bird"John Lennon Free as a Bird
"I only carry when I have my pants on"Joe Robinson RIP aka Old Dog
OleDirtyDoc is offline  
post #25 of 42 (permalink) Old 07-19-2012, 03:05 AM
FREEBIRDS MC CENTRAL NY
 
OleDirtyDoc's Avatar
 
Join Date: May 2011
Location: Norwich,NY
Posts: 16,040
iTrader: (0)
     
Garage
Send a message via Yahoo to OleDirtyDoc
Quote:
Originally Posted by dragon159 View Post
When I designed my system I wanted to give it a little more "growl" but not obnoxious, even though I will be the first to admit I am a bit of an a$$#ole, but recovering. I made the "muffler" out of 24" of 3 inch pipe and made an 18" baffle to fit in it. Gives a little growl but doesn't make babies cry when I go by.
my $.023
is there a support group for that?i would like to send my manager there.lol.cool. politically correct baby freindly mufflers.lol

ONE RATS ASS GIVEN PER POST
Support your local FREEBIRDS MC
1986/5 Vn700/750 Frankenfook cross eyed bitch "Mellisa Fayhe"
I am a BIKER and i'm proud.FREEBIRDS MC CENTRAL NY

lowered with progessive 412 10" shocks
rejetted for K/N Pods part#rc 2340
sportster seat

'I didn't lose my mind.i gave it away

BRING BACK WOLFIE."Peace and Carrots"RIP
"And I'm free...as a bird"John Lennon Free as a Bird
"I only carry when I have my pants on"Joe Robinson RIP aka Old Dog
OleDirtyDoc is offline  
post #26 of 42 (permalink) Old 07-20-2012, 06:50 PM
Registered User
 
Join Date: Aug 2011
Location: GreenwoodFrickinLakeNY
Posts: 10,354
iTrader: (8)
   
There aint no catalytic converters on Vulcans or Harleys (mebbe newer bikes, dunno)...ya got the goats belly, which is basically fixing an engineering screwup (making a crossover and expansion area because they screwed up the design)...other than that, anything you see are just baffles...

And you can put aftermarket baffles into straight pipes, then add the fishtail ends (still need the length though)...I know MANY who have done this, with great results....Triumphs, Harleys, Jappers, etc...



Wolfie is offline  
post #27 of 42 (permalink) Old 07-20-2012, 10:48 PM Thread Starter
Senior Member
 
Join Date: Jul 2012
Posts: 384
iTrader: (-3)
 
I know the stock pipes on our bikes don't have anything in them other than the baffles.
As soon as I get one of these Dyna mufflers off, I will attempt to get some pics of the insides of them. They did come off of an injected bike. I know most of the older Harley mufflers you could see through them. These you can't.
TSmith68 is offline  
post #28 of 42 (permalink) Old 07-20-2012, 11:05 PM
Senior Member
 
Join Date: Mar 2012
Posts: 450
iTrader: (0)
 
Garage
There might be a cat in the goat, not certian. I never opened it up. I would expect one in there though. I directly tossed mine in the trash when when I took it off. On the mean streak I had, I cut the goat and there was a small cat in it! Quit comparing foriegn with harleys! They are not the same! Foriegn have been keeping up with the times and technology, while harely is stuck in the stone age.
Rebel13 is offline  
post #29 of 42 (permalink) Old 07-21-2012, 11:07 AM
Registered User
 
Join Date: Aug 2011
Location: GreenwoodFrickinLakeNY
Posts: 10,354
iTrader: (8)
   
Quote:
I know most of the older Harley mufflers you could see through them. These you can't.
Thats because most of the POs debaffled em...stock Harley muffs have baffles...took me awhile to get used Sporties with the baffles still in...

And nope, no cat in goat...one of the members here cut it apart (with pics, forgot who), and no pellets.

Quote:
Quit comparing foriegn with harleys! They are not the same! Foriegn have been keeping up with the times and technology, while harely is stuck in the stone age.
Then why do newer Sportsters have the same Showei forks we do ?...
Went down like this : the Japs coppied the Harley design to get that market, but improved on it. Then Harley (since they lost all their good engineers) began to use/copy Jap parts. So in effect yer contradicting yerself. There are so many Jap parts on a Harley now, it aint funny. AND...the aftermarket companies saw this, improved on both (usually),and started offering that fer options. My old Harley ran same points (yep, points) as a Chevy 6 cyl...nowadays Harley uses Nippon-Denso in many bikes...so why not compare, unless youre comparing with an older Harley. Same stuff.



Wolfie is offline  
post #30 of 42 (permalink) Old 07-22-2012, 01:53 PM Thread Starter
Senior Member
 
Join Date: Jul 2012
Posts: 384
iTrader: (-3)
 
These Harley mufflers have a center that looks like the center of a cat. Small tight woven honeycomb design from the inlet side. I haven't looked at the outlet side. They are not your typical baffles if you can even call them that.
I have never seen a center like that in any muffler, even the older sporty's.
TSmith68 is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Once registered, your User Name"cannot be changed". We can make exceptions within 7 days, but after that, it is set in stone.

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 email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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 On
Pingbacks are On
Refbacks are On

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