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New Products!
Started by wwlknsn at 05-02-2006 3:11 PM. Topic has 9 replies.
  
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 05-02-2006, 3:11 PM
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wwlknsn
Joined on 04-09-2006
Memphis, Tn
Posts 154
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has anyone out there purchased a two brothers exhaust for their rhino?
Roostin' Rhino RAIS Power Tube
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05-02-2006, 3:28 PM
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admin
 
Joined on 03-07-2006
Yuma Arizona
Posts 163
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05-02-2006, 4:16 PM
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wwlknsn
Joined on 04-09-2006
Memphis, Tn
Posts 154
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Thats the correct link to the Two Brothers site. I'm a bit surprised that I haven't seen a bit more about it in the forums. I'm down to 2 choices...its either going to be a Two Brothers exhaust or an Alba exhaust. pondering...
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06-16-2006, 7:17 PM
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wwlknsn
Joined on 04-09-2006
Memphis, Tn
Posts 154
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I went with the Alba/Hushmaster system. I'm exceptionally pleased with the result. ww
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06-19-2006, 12:10 PM
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admin
Joined on 03-07-2006
Yuma Arizona
Posts 163
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Are you going to give any evaluation? I am thinking about a different exhaust myself.
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06-20-2006, 4:22 PM
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wwlknsn
Joined on 04-09-2006
Memphis, Tn
Posts 154
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for what it's worth, i'm extremely pleased with the setup. the installation was against a near stock setup (RAIS Power Tube, aftermarket filter, aftermarket jet kit, cdi). i pushed it around a bit this weekend and can say with confidence that....
1. exhaust tone is only moderately above stock and marginally above stock muffler with tip installed.
2. installation is straight forward and fits properly.
3. exhaust flow is noticeably improved through acceleration and time to speed.
4. if you open up the intake side as indicated above, the stock exhaust system becomes the limiting factor with respect to flow restriction on this motor.
The Alba/Hushmaster combination is a high quality setup that cannot be matched by modification of the stock exhaust system in any way, form or fashion. I can't speak for the KMS headpipe setup as I don't have any hands on with it but would think it would be safe to assume that the quality and flow characteristics are there as well. To attach either (or anything for that matter) to a stock muffler is going to seriously defeat the purpose of exhaust flow efficiency.
ww
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08-31-2006, 9:50 AM
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wwlknsn
Joined on 04-09-2006
Memphis, Tn
Posts 154
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it will set you back about 500, but its a worthwhile 500 in my book. in order to accomplish best performance, you'll really need to assess each jetting circuit. ww
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07-02-2007, 4:25 AM
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wwlknsn
Joined on 04-09-2006
Memphis, Tn
Posts 154
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I am currently running a 170 dynojet main (have been for awhile,... the equivalent of approx 160 mikuni main) with an RAIS Power Tube, cdi, grizzly sheave and alba exhaust. Installation of a 175 dynojet main results in a noticeable intermittant stumble on extended wfo runs. That said, I do not have any experience with a two brothers exhaust or any of the cold air intakes so my opinion is pure speculation.
If I were you, I would settle in on your a/f mixture setting initially, your pilot jet size and your needle setting before assessing main circuit for the simple fact that these circuits (specifically the pilot circuit) are cumulative and contributes to the fuel availability on all jet circuits. This is going to require minimum load as well as under load performance assessment. Minimum load would be on pavement and under load would be in mud for example.
Once settled on above, I feel the most effective way to get the main circuit 'on' is to get on a piece of pavement where you can do an extended wfo run. I would define that as an area giving you a good mile minimum. It will allow your Rhino to reach speed and most importantly reproduce a rich condition once achieved. It's not enough to have your foot on the floor. With a CV carb, the slide has to get to fully open as well. That will probably take 1/3 of a mile. The other 2/3 of a mile, will give you what you need to assess the main circuit.
Get some jets. They are only a few bucks each, so get a whole range of what you think you may need. Obviously, you want to establish an overly rich condition. Maybe it is a 195 or 200 or 205, I don't know but if I were you, I would find it. If you put n a 205 and it stumbles and sputters all over itself, you know you are to rich and then you start working down doing the runs I suggest above. You know you are close when you have 1 or 2 rich stumbles (instant stumble followed by recovery) during that 2/3 mile. In general, 1 jet size below this condition will have your main circuit spot on.
Hope this helps. ww
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YamahaRhinos.ne... » Administrators » New Products! » Re: Two Brothers Exhaust
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