Go Back   Two Wheel Fix > In the Garage or Shop > Aftermarket Modding

Reply
 
Thread Tools Display Modes
Old 06-20-2009, 07:23 PM   #11
Tmall
Aspiring Rapper
 
Tmall's Avatar
 
Join Date: Nov 2008
Location: Halifax, NS
Moto: '12 CB1000R
Posts: 3,569
Default

Quote:
Originally Posted by TIGGER View Post
That's what I thought too. Heck, even the GSXR750 was beating them... Anyway, I thought that the length of the muffler could alter the hp and tq characteristics of an engine... I guess I was wrong. Sorry if I stepped on your toes Bro, I was giving honest advice based on what I thought was right.
It would and does effect the performance.

Buell uses a long path for low rpm in the xbs and short for higher revs.

When I rigged it so I was using the short path, I lost low end power.
Tmall is offline   Reply With Quote
Old 06-20-2009, 08:30 PM   #12
Amber Lamps
Moto GP Star
 
Join Date: Mar 2008
Posts: 14,556
Default

Quote:
Originally Posted by Tmall View Post
It would and does effect the performance.

Buell uses a long path for low rpm in the xbs and short for higher revs.

When I rigged it so I was using the short path, I lost low end power.
That's what would think too...
Amber Lamps is offline   Reply With Quote
Old 06-21-2009, 01:38 AM   #13
Rangerscott
Viff6N Mutated Warrior
 
Rangerscott's Avatar
 
Join Date: Mar 2009
Location: Texas
Moto: '01 Honda VFR 800 & '09 ER-6N
Posts: 8,704
Default

Now my bike felt sluggish when I took off the muff and mid pipe. Even though it has a cat it felt slower getting up to speed. But between the shorty I have and the long scorpion (dont know what its really meant for), I couldnt tell.
Rangerscott is offline   Reply With Quote
Old 06-21-2009, 08:31 AM   #14
Tmall
Aspiring Rapper
 
Tmall's Avatar
 
Join Date: Nov 2008
Location: Halifax, NS
Moto: '12 CB1000R
Posts: 3,569
Default

Its simple really. Any kind of pipe or hose has an internal resistance to flow.

The longer it is, the higher the resistance.

A shorter path would produce less back pressure unless you throw some bends to compensate, or as some people do throw an adjustable baffle in the exhaust path. Then you can adjust the flow restriction accordingly. (this is usually a washer on the end of a bolt threaded into the headed or midpipe)
Tmall is offline   Reply With Quote
Old 06-23-2009, 04:37 PM   #15
marko138
DefenderOfTheBuelliverse
 
marko138's Avatar
 
Join Date: Feb 2008
Location: Parts Unknown
Moto: Buell XB12R
Posts: 18,585
Default

Quote:
Originally Posted by Tmall View Post
Its simple really. Any kind of pipe or hose has an internal resistance to flow.

The longer it is, the higher the resistance.

A shorter path would produce less back pressure unless you throw some bends to compensate, or as some people do throw an adjustable baffle in the exhaust path. Then you can adjust the flow restriction accordingly. (this is usually a washer on the end of a bolt threaded into the headed or midpipe)
You a smart motherfucker.

__________________


Quote:
Grandma said she doesn't want you here when she gets back because you've been ruining everybody's lives and eating all our steak.
marko138 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 07:50 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.