baffles in exhaust - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Engine / Exhaust / Cooling
\ From the radiator, through the case and out
the exhaust. If it has to do with the cooling,
engine or exhaust, discuss it here!

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 26 (permalink) Old 05-14-2012, 01:45 AM Thread Starter
n00b
 
'85vulcan700's Avatar
 
Join Date: May 2012
Location: St. Augustine, Fl.
Posts: 9
iTrader: (0)
 
baffles in exhaust

Just curious if the same mechanics i've learned on cars over the years are going to apply to my newly aquired project vulcan.

If i remove the baffles from the pipes, I'll not only increase the sound level, but potentially adda bit of mid range tourque over the stock configuration?

and for future reference, what's a great set of pipes to go with if i'm looking for the best bang for the buck?
'85vulcan700 is offline  
Sponsored Links
Advertisement
 
post #2 of 26 (permalink) Old 05-14-2012, 04:25 AM
ass hole extaordinaire
 
new rider 9984's Avatar
 
Join Date: May 2012
Location: Sulphur Springs TX
Posts: 3,780
iTrader: (7)
 
vance and hines makes a set of pipes for my 86 vulcan 750 that are only $384 with free shipping i forget the website
new rider 9984 is offline  
post #3 of 26 (permalink) Old 05-14-2012, 07:17 AM
Members who have donated towards server costs
 
JM2001's Avatar
 
Join Date: Mar 2011
Location: Rochester, New York
Posts: 1,803
iTrader: (1)
 
Quote:
Originally Posted by '85vulcan700 View Post
Just curious if the same mechanics i've learned on cars over the years are going to apply to my newly aquired project vulcan.

If i remove the baffles from the pipes, I'll not only increase the sound level, but potentially adda bit of mid range tourque over the stock configuration?

and for future reference, what's a great set of pipes to go with if i'm looking for the best bang for the buck?
No, just the opposite. Removing the baffles will reduce back pressure and will decrease low and mid range torque. The only benefit you have with no baffles is at high rpms at WOT. The pipes are going to be very loud.

JM2001

" Loud Pipes Risk Rights "

2001 Vulcan 750
marbled
TOC upgrade on ACCT
Air/fuel mixture set to 2 1/2 out
rectifier relocated
splines lubed
iridiums
decals removed
upgraded mirrors
Pic up coil mod done
degoated
All LED lighting
Upgraded Mosfet rectifier
JM2001 is offline  
 
post #4 of 26 (permalink) Old 05-14-2012, 07:57 AM
Patriot Guard Rider
 
The DEUCE's Avatar
 
Join Date: Jan 2011
Location: Torrance, CA
Posts: 825
iTrader: (20)
 
Quote:
Originally Posted by new rider 9984 View Post
vance and hines makes a set of pipes for my 86 vulcan 750 that are only $384 with free shipping i forget the website
eBay has a set for $355 shipped.

V&H Cruzers #31363

1986 Black Kawasaki Vulcan VN750 "Black KAWK"
VN750 #9300 & VROC #33453

EMGO Handlebar, V&H Exhaust, Drop Shocks, Raised/Painted Fork, MeanStreak Seat, Tank Bib, ME880 Oversize Tires, Engine Guard, Custom Mirrors, Chris Products Turn Signals, Ear Shave, 150/42 Jets, PINGEL Fuel Valve, MCCT, Volt Meter, Shendegen R/R, AGM Battery, Coastered, .020 Coils, Relo Gauges & Headlamp, SilverStar Ultra, LED Flashing Brake Light, Center Stand Delete, WOLO Airhorn.
The DEUCE is offline  
post #5 of 26 (permalink) Old 05-14-2012, 08:16 PM Thread Starter
n00b
 
'85vulcan700's Avatar
 
Join Date: May 2012
Location: St. Augustine, Fl.
Posts: 9
iTrader: (0)
 
Quote:
Originally Posted by JM2001 View Post
No, just the opposite. Removing the baffles will reduce back pressure and will decrease low and mid range torque. The only benefit you have with no baffles is at high rpms at WOT. The pipes are going to be very loud.
Aaahhh I see what you mean. I was thinking on the free flowing perspective. Thanks for the correction!

I"ll be looking into the Vance and Hines stuff. As long as they aren't ground shakingly loud.. haha
'85vulcan700 is offline  
post #6 of 26 (permalink) Old 05-20-2012, 09:50 PM
Senior Member
 
Join Date: Apr 2012
Location: Central Illinois
Posts: 114
iTrader: (0)
 
Wouldn't pulling the mufflers off the stock pipes give you an idea if it would be to loud? I suppose the belly might make it a little more quiet than straight pipes though.

4/12/12 1st bike ever! 95 VN 750 13k
New plug wires
Iridiums
Coil relay mod
MCCT mod
Marbled
EPA stuff removed
Rear signals shaved
Shinko 170-110 oversized tourmaster tires
Splines lubed
Front signals relocated.
skyboxer is offline  
post #7 of 26 (permalink) Old 05-21-2012, 05:07 PM
Registered User
 
Join Date: Aug 2011
Location: GreenwoodFrickinLakeNY
Posts: 10,354
iTrader: (8)
   
okay...Ive read a number of "workable" options on this subject here at the forum. Again, all depends on the sound and performance you want, and if ya wanna mess with jetting or not. Results will also vary depending on intake (stock vs pods). I was able to change the sound (albeit quieter) with pods, no belly, and full Sport muffs.

1) Leave goats belly and debaffle stocks
2) Remove goats belly and use baffled stock muffs
3) Remove belly AND baffles from stock muffs
(debaffled stock muffs actually ARE straightpipes, body kept more for JoeLaw methinks)
4)Leave belly and add debaffled Sportster muffs
5)remove belly and add baffled stock sportster muffs (what I have)
6)buy aftermarket made for the VN
7) run straightpipes with aftermarket baffles



Wolfie is offline  
post #8 of 26 (permalink) Old 05-21-2012, 06:54 PM
Senior Member
 
kc2dgq's Avatar
 
Join Date: May 2010
Location: New Jersey
Posts: 3,350
iTrader: (13)
 
Garage
Quote:
Originally Posted by Wolfie View Post
okay...Ive read a number of "workable" options on this subject here at the forum. Again, all depends on the sound and performance you want, and if ya wanna mess with jetting or not. Results will also vary depending on intake (stock vs pods). I was able to change the sound (albeit quieter) with pods, no belly, and full Sport muffs.

1) Leave goats belly and debaffle stocks
2) Remove goats belly and use baffled stock muffs
3) Remove belly AND baffles from stock muffs
(debaffled stock muffs actually ARE straightpipes, body kept more for JoeLaw methinks)
4)Leave belly and add debaffled Sportster muffs
5)remove belly and add baffled stock sportster muffs (what I have)
6)buy aftermarket made for the VN
7) run straightpipes with aftermarket baffles
OR...for sound only, you can leave it all stock and drill the stock baffles. if you want it louder, you can even remove the inner screen of the stock mufflers (not quite a total debaffle since the outlet is still restricted).

I just drilled 4 holes on the back plate to get some rumble and the back pressure from the Goats belly and inner screens on the stock mufflers seem to give it all the back pressure it needs. Runs and sounds (to me) great!
kc2dgq is offline  
post #9 of 26 (permalink) Old 05-21-2012, 08:04 PM
Registered User
 
Join Date: Aug 2011
Location: GreenwoodFrickinLakeNY
Posts: 10,354
iTrader: (8)
   
Option 8...thanks for adding, KC !



Wolfie is offline  
post #10 of 26 (permalink) Old 05-21-2012, 08:05 PM
Senior Member
 
pittdave's Avatar
 
Join Date: Mar 2012
Posts: 441
iTrader: (3)
 
V&H Cruzers on DennisKirk.com for $324.. I actually got my local Kaw dealer to match it and had them the next day

Pittsburgh Dave
2001 VN750...old ride
2003 VN1600.. new ride
pittdave 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