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Board index » Our legendary Kawasaki Triples » Not Triple Related (NTR) chat

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battleax
 Post subject: E-Tec Snowmobile Motor
PostPosted: Wed May 22, 2013 10:36 am 
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Joined: Thu Jun 09, 2011 3:35 pm
Posts: 562
Location: Cedar Rapids, Iowa
http://www.ski-doo.com/technologies/engine-technologies/2-strokes

Quite an advanced 2 stroke, why the reed valves? If it is pulling plain air into the bottom end, what's a little reversion between friends?

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Ja-Moo
PostPosted: Wed May 22, 2013 10:46 am 
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Joined: Tue Jun 07, 2011 6:37 am
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Location: Rio Rancho, New Mexico
battleax wrote:
http://www.ski-doo.com/technologies/engine-technologies/2-strokes

Quite an advanced 2 stroke, why the reed valves? If it is pulling plain air into the bottom end, what's a little reversion between friends?


Because a piston port is a primitive design. With or without fuel, charge blown out of the crankcase still reduces power, and causes the same bad turbulence in the intake system.

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Twist the throttle, tilt the horizon, and have a great time. What triples are all about...........
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husson73
PostPosted: Wed May 22, 2013 11:57 am 
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Location: PARIS FRANCE
which maker will dare to built a new road bike two stroke?
169 HP for 800cc twin is impressive :clap: :clap: :clap:
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Ja-Moo
PostPosted: Wed May 22, 2013 12:05 pm 
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I would love to see a torque curve..............

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007monkey
PostPosted: Sat Jun 01, 2013 4:28 pm 
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Joined: Sat Jun 11, 2011 7:33 am
Posts: 54
Was interested about this so I searched out the Ski Doo dyno results from 2010. Been a long time since I owned a sled, was curious just how narrow the powerband is:

http://cs.amsnow.com/sno/b/news/archive/2010/03/30/ski-doo-releases-e-tec-800r-dyno-test-results.aspx
Image

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