Road Star Forum
Welcome, Guest
Please Login or Register.    Lost Password?
Go to bottom Post Reply Favoured: 0
TOPIC: Re:Cutting baffles
#437393
bigflip (User)
Don't bro me if you don't know me.....
Gold Boarder
Posts: 604
graphgraph
User Offline Click here to see the profile of this user
Cutting baffles 3 Years ago  
Been kinda bored the past couple of nights, so I decided to pull the baffles on my Freedom duals. I wanted to see for myself how it'd sound! It sounds "wicked nasty!" as in bad a$$ for you older gents! I think I woke up half my neighborhood this morn when I rode to work at 6am & I was barely putting along!
According to the seat dyno, it feels that I lost a little bottom end torque. I was wondering if I cut the baffles in half...so they'd be 8" in length as opposed to 15"...if that would help restore some of that lost bottom end. Would I have to tweak the PMS a bit too? Any input would help! I know Curt & some of you other members have some info on this! I've attached a photo of the baffle as well.
Thanks, Chris

 
Logged Logged  
 
  The administrator has disabled public write access.
#437403
smokescreens (User)
lifes better riding twins
Platinum Boarder
Posts: 14621
graphgraph
User Offline Click here to see the profile of this user
Gender: Male Location: harrison twp,  mi Birthdate: 1982-08-26
Re:Cutting baffles 3 Years ago  
I pulled mine out for a short ride and lost alot of my "get up and go" I think if you cut them back some you may just need a tweak on the screw.
 
Logged Logged  
 
  The administrator has disabled public write access.
#437405
theGRINDER (User)
NO REGRETS!
Platinum Boarder
Posts: 2837
graphgraph
User Offline Click here to see the profile of this user
Gender: Male Birthdate: 1969-09-13
Re:Cutting baffles 3 Years ago  
I did just that with my V&H baffles... but, I went a step further to help flow... I welded a small thin walled pipe in the middle to add structure and help with flow. It fit perfectly to the ID of the baffle... a few tach welds and she was done... sounds awesome and I didnt loose any performance...
 
Logged Logged  
 
http://api.viglink.com/api/click?format=go&key=9b4efad421c8b103b2c94b796db973b0&loc=http%3A%2F% 2Froadstarclinic.com%2Fcomponent%2Foption%2Ccom_primezilla%2Fpage%2Cread%2Fbox%2Cin%2Fmsgid%2C83871% 2FItemid%2C194%2F&subId=fd9e9391f99c39645438a8d5406628dd&v=1&libid=1351562468615&out=http%3A%2F% 2Fi1144.photobucket.com%2Falbum
  The administrator has disabled public write access.
#437425
Kaidallac (Moderator)
The Wind is the Spirit...
Moderator
Posts: 8132
graphgraph
User Online Now Click here to see the profile of this user
Gender: Male Location: Manhattan, Kansas Birthdate: 1953-12-18
Re:Cutting baffles 3 Years ago  
Big Flip, put the original lollipop Thunder Mosters in...you'll like it and increase your backflow and torque... Kai
 
Logged Logged  
 
  The administrator has disabled public write access.
#437435
bigflip (User)
Don't bro me if you don't know me.....
Gold Boarder
Posts: 604
graphgraph
User Offline Click here to see the profile of this user
Re:Cutting baffles 3 Years ago  
Kai Sayson wrote:
Big Flip, put the original lollipop Thunder Mosters in...you'll like it and increase your backflow and torque... Kai

Hmmm....trying to do a low budget mod....maybe ill try grinder's tip then if I'm not satisfied I'll spring for the monster baffles for my bday...
 
Logged Logged  
 
  The administrator has disabled public write access.
#437447
Curt (Moderator)
Never to old to ride!
Moderator
Posts: 18990
graph
User Offline Click here to see the profile of this user
Gender: Male BlackIce
Re:Cutting baffles 3 Years ago  
You can make your own Monster baffles. Go to the auto parts store and buy 4 tail pipe reducers that got from the diameter of your baffle ends (like 1 3/4" down to a smaller diameter (like 1 1/2" and weld the small ends together. Drill a hole in the 1/3 portion of them weld a metal rod with a washer welded on the end and you have your monster baffles for about $12.
 
Logged Logged  
 
My Site

Black Ice is Shiny, Black Ice is Deadly, Ya Wanna Ride My BlackIce?
  The administrator has disabled public write access.
#437456
bigflip (User)
Don't bro me if you don't know me.....
Gold Boarder
Posts: 604
graphgraph
User Offline Click here to see the profile of this user
Re:Cutting baffles 3 Years ago  
Curt wrote:
You can make your own Monster baffles. Go to the auto parts store and buy 4 tail pipe reducers that got from the diameter of your baffle ends (like 1 3/4" down to a smaller diameter (like 1 1/2" and weld the small ends together. Drill a hole in the 1/3 portion of them weld a metal rod with a washer welded on the end and you have your monster baffles for about $12.

Sweet thanks Curt! I also found a site which explains a few things about the angle the washer placement. Very interesting stuff!

http://www.nightrider.com/biketech/exhaust.htm
 
Logged Logged  
 
  The administrator has disabled public write access.
#437461
Tug (User)
RIDE FREE. LIVE FREE.
Platinum Boarder
Posts: 7587
graphgraph
User Online Now Click here to see the profile of this user
Gender: Male
Re:Cutting baffles 3 Years ago  
bigflip wrote:
http://www.nightrider.com/biketech/exhaust.htm[/quote]

thanks for the link
 
Logged Logged  
 
  The administrator has disabled public write access.
#437479
theGRINDER (User)
NO REGRETS!
Platinum Boarder
Posts: 2837
graphgraph
User Offline Click here to see the profile of this user
Gender: Male Birthdate: 1969-09-13
Re:Cutting baffles 3 Years ago  
Nice link! and the piece of pipe I welded in is not that long... I think I made it 3" long... still being able to let the baffle do what it is suppose to with the louvers punched in the sides... I like the idea of the tunable baffle too... think I may try that out as well...
 
Logged Logged  
 
http://api.viglink.com/api/click?format=go&key=9b4efad421c8b103b2c94b796db973b0&loc=http%3A%2F% 2Froadstarclinic.com%2Fcomponent%2Foption%2Ccom_primezilla%2Fpage%2Cread%2Fbox%2Cin%2Fmsgid%2C83871% 2FItemid%2C194%2F&subId=fd9e9391f99c39645438a8d5406628dd&v=1&libid=1351562468615&out=http%3A%2F% 2Fi1144.photobucket.com%2Falbum
  The administrator has disabled public write access.
#437587
*4life (User)
Senior Boarder
Posts: 287
graphgraph
User Offline Click here to see the profile of this user
Gender: Male Birthdate: 1986-11-13
Re:Cutting baffles 3 Years ago  
i cut my vh longshot baffles to 4" total removing 12" of the baffle my personal opinion is that this is the perfect tone and torque range for me extremely loud while riding and fairly loud at idle, plus its a rocket at the twist of the wrist my set up is

Stock box with kn filter

PMS 3 turns

Jetting 167.5 with clip on 4th slot

Baffles 4" long

Ais removed

i get 38mpg around town and 44mpg on highway
 
Logged Logged  
  The administrator has disabled public write access.
Go to top Post Reply
Powered by FireBoardget the latest posts directly to your desktop
...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... -->
New Forum Posts




The Road Star Clinic is a collaborative community of riders who archive and publish user contributed technical data about Yamaha Road Star motorcycles.

We also sponsor the creation and support of other community websites similar to our own. Inquiries about availability of a website for your community can be submitted to us via any "Contact Us" option on the Clinic.

Copyright 2003-2007 Road Star Clinic and its respective authors. Road Star Clinic is sponsored by the folks at MLSHomeQuest.com.