torque cones
Thread Starter
|
6th Gear
Joined: Oct 2006
Posts: 10
Likes: 0
torque cones
I have a 07 night train and getting ready to buy a set of streetwalker pipes. they have no baffles in them. I am welding in a kit so that I can put O2 on them. I am wanting to know I I should get torque cones while I do this. I dont want to lose all my low end torque and hp. I will then be Having my bike dyno tuned after instal with the race tuner. Any help would be valued.
Extreme HDF Member
Joined: Sep 2006
Posts: 10,033
Likes: 29
RE: torque cones
I doubt that torque cones work. They are in the wrong end of the pipe to do any good. You would be better off using a baffle of some type in the other end. I made lollipop baffles for a set of pipes on one of my bikes. They are crudely "tuneable." My butt dyno tells me they make a difference.
[IMG]local://upfiles/17633/DC0614AAEFD34372BB14D78E66DD616C.jpg[/IMG]
Here's a good read on how to make drag pipes work...
http://www.nightrider.com/biketech/exhaust.htm
[IMG]local://upfiles/17633/DC0614AAEFD34372BB14D78E66DD616C.jpg[/IMG]
Here's a good read on how to make drag pipes work...
http://www.nightrider.com/biketech/exhaust.htm
Banned
Joined: Mar 2006
Posts: 8,603
Likes: 10
RE: torque cones
they work...i've used em several times on several pipes...they work...mechs wanna tell you they are just a band aid, but most of them arent capable of tuning low end back into the bike....torque cones work, end of story
Outstanding HDF Member
Joined: Aug 2005
Posts: 2,141
Likes: 4
From:
RE: torque cones
They worked for me when I ran no baffles with the Rinehart true duals. No before and after dyno to show just the seat of the pants power for sure. They also helped get rid of the bad dip in the curv that the Rineharts are known for.
Tourer
Joined: May 2006
Posts: 319
Likes: 0
From: Cape Coral, FL
RE: torque cones
Torque cones work on drag exhaust by helping prevent reversion, the cones help prevent the exhaust gases from re-entering the chamber at low rpm's during the over lap period of the cam, (when the intake and exhaust valves are open at the same time). It dilutes the air/fuel mixture and you lose power at low end. When the rpm's are higher, then the exhaust is moving through at higher velocity and besides preventing reversion, it is evacuating the chamber better, helping bring in the fresh charge of air/fuel. That is why drag pipes have the rep for only being good at high rpm's and losing power at low rpm's.
Thread
Thread Starter
Forum
Replies
Last Post
