R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road

Reply
 
Thread Tools Search this Thread
Old 08-09-2002, 08:52 PM   #1
Regional Moderator
 
racer rich's Avatar
 
Join Date: Jun 2002
Location: Pahrump, Nevada
Posts: 487
What effect does "Chambers" have on the performance of a Tuned Pipe?

I have a question about what role and purpose does "Chambers" serve in a tuned pipe. I see some manufacturers advertise their tuned pipes as being "Dual-Chambered" or having "Three Chambers", but what effect do "Chambers" have on the performance of tuned pipes? I will be using this tuned pipe for a Rossi Pixi-Black .12 engine in my Reflex NT on a large track with long straightaways and big sweeping turns.

Are "Chambers" designed into a tuned pipe to give the pipe itself better top-end or high-RPM performance, or do "Chambers" give the pipe better "bottom-end" or "low-end" performance? Does a "Chambered" tuned pipe offer better performance than a "non-Chambered" tuned pipe? I am looking for a tuned pipe designed for optimum top-end performance. Will a "Chambered" tuned pipe give better top-end performance than a "non-Chambered" tuned pipe?

I saw this G70319 CEN 3 Chamber .12 tuned pipe at CEN's website. They say it has 3 Chambers to "unleash a good top-end power." Here is a picture of it:



Does more "Chambers" in a tuned pipe mean that the pipe itself will have better top-end power? In other words does a 3-Chambered tuned pipe give better top-end performance than a 2-Chambered tuned pipe?

Also, can anyone tell me if the CEN 3-Chambered tuned pipe pictured above is ROAR legal?

Thanks in advance!

Last edited by racer rich; 08-09-2002 at 09:41 PM.
racer rich is offline   Reply With Quote
Old 08-09-2002, 09:21 PM   #2
Tech Elite
 
Join Date: Aug 2001
Posts: 2,583
Default Re: What effect does "Chambers" have on the performance of a Tuned Pipe?

Quote:
Originally posted by racer rich
I have a question about what role and purpose does "Chambers" serve in a tuned pipe. I see some manufacturers advertise their tuned pipes as being "Dual-Chambered" or having "Three Chambers", but what effect do "Chambers" have on the performance of tuned pipes? I will be using this tuned pipe for a Rossi Pixi-Black .12 engine in my Reflex NT.

Are "Chambers" designed into a tuned pipe to give the pipe itself better top-end or high-RPM performance, or do "Chambers" give the pipe better "bottom-end" or "low-end" performance? Does a "Chambered" tuned pipe offer better performance than a "non-Chambered" tuned pipe? I am looking for a tuned pipe designed for optimum top-end performance. Will a "Chambered" tuned pipe give better top-end performance than a "non-Chambered" tuned pipe?

I saw this G70319 CEN 3 Chamber .12 tuned pipe at CEN's website. They say it has 3 Chambers to "unleash a good top-end power." Here is a picture of it:



Does more "Chambers" in a tuned pipe mean that the pipe itself will have better top-end power? In other words does a 3-Chambered tuned pipe give better top-end performance than a 2-Chambered tuned pipe?

Also, can anyone tell me if the CEN 3-Chambered tuned pipe pictured above is ROAR legal?

Thanks in advance!
Chambers (2,3) were added to reduce the noise level of the exhaust. They hinder performance (topend) some depending on the shape. Some say they boost low end because of the increased back pressure.
If you look at good ones like Novarossi, RB you'll see that its basically a smaller cone inside a larger outside cone. The goal is to keep the shape of the pipe as close to the single pipes as possible. The reason is with 2 strokes, the shape, angles and size of the parts (divergent, convergent cones and body) of the pipe are important to getting good performance.
If you look at poorly designed 2 and 3 chambered cones, they have vertical walls with a hole somewhere separating the pipe into 2 or 3 segments.

Sorry not sure if the CEN is legal or not.
Sydewynder is offline   Reply With Quote
Old 08-10-2002, 01:50 AM   #3
Tech Regular
 
Brett's Avatar
 
Join Date: Jun 2002
Location: Shellharbour NSW Australia
Posts: 348
Default

there is a simple rule for pipes and their uses

small pipe volume= better top end
large pipe volume= better bottom end

so racer rich u r looking for a short skinny pipe
Brett is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
"""NEW""" Collari .21 3 port buggy motor lc21-b3 goneRVing R/C Items: For Sale/Trade 7 12-20-2006 06:25 PM
The "Brushless + Lipo" Effect... PeteB Electric On-Road 7 12-11-2006 07:01 PM
OFNA HYPER 8 POLISHED TUNED PIPE "NEW" PAPAMAC R/C Items: For Sale/Trade 2 08-28-2006 08:40 AM
""" XRAY FK05 """ excellent cond/super clean/stock evostyle R/C Items: For Sale/Trade 9 06-29-2006 10:04 PM
the "Ghoul" effect and others: how they do that? AQuionIV Painting, Designs, Graphics and Photography 12 08-03-2004 05:11 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 05:04 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net