[ST] RE: Aftermarket Cans

[Robert Riffel <Robert.Riffel@xxxxxxxxxxxxxx>]

	Eric,

	Quite a few people on the list have installed cans made by Two
Brothers.  Everyone seems to like them.  I have one on my '00 RS.  I had
tune number 10021 installed and the CO set to about 3%.  The bike actually
runs better now.  It seems that US spec bikes get their CO set to 1% from
the factory and they run so lean that they sometimes stall when
decelerating.  My bike hasn't done that since I got the new pipe and tune.
The bike feels like it has a little more power, but that could just all be
in my head.  I don't think that the design of the Triumph performance can is
that much different than most other cans, they are all more or less just
perforated steel pipes with stainless steel wool and fiberglass wrapped
around them.

	Rob

> Date: Fri, 27 Apr 2001 00:40:58 -0400
> From: "Eric Drayer" <ejdrayercpa@xxxxxxxxxxxxxxxx>
> Subject: [ST] Aftermarket Cans
> 
> I remember a while back, here on the list, that there was a thread going
> on
> about how non Triumph cans would actually decrease performance.  There was
> talk about how the tunes only supported the factory cans and use of other
> cans would result in either rich or lean running.
> 
> Recently there has been some very positive feedback about non factory
> cans.
> So what I want to know is what has changed? Have new models of aftermarket
> cans been introduced?  Is there a mod to the tunes that allow them to
> work?
> What is the deal and what should go into the decision making process in
> choosing the "right" can.
> 
> From an article I read regarding "tuned" exhausts (as opposed to EFI
> tunes)
> it seems that the most important factor was the length of the pipes.  This
> was because of the timing of the various cycles involved with a 4 stroke
> engine.  To minimize the negative effects of exhaust backflow interfering
> with the intake strokes (at least in horizontally opposed aircraft
> engines)
> the length of the pipes was the determining factor.
> 
> Has anyone tried both a Triumph race can as well as an aftermarket can and
> what was their experience?  Is anyone real happy with the performance
> aspect
> of non factory cans (as opposed to the sound)?
> 
> Thanks,
> 
> Eric
> 
> '00 ST Blue
> 

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