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02-01-2013, 03:59 PM
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#16 |
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Vtwin madness
Joined: Sep 2008
Location: Not quite Tamworth, Aus
Oddometer: 279
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02-01-2013, 05:44 PM
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#17 | |
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Dans le doute...gaz!
Joined: Jun 2009
Location: Northern Cali
Oddometer: 1,720
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Quote:
I had them on my 990. But they vibrate out as they do not lock in properly. So beware and modify the locking aspect or your whole airbox will be loose......
__________________
The race is long and, in the end, it's only with yourself...
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02-02-2013, 10:42 AM
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#18 |
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Gnarly Adventurer
Joined: Feb 2010
Location: ESCONDIDO, CA
Oddometer: 274
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I thought that too, but was told the fuel injected stacks don't go into the carbed version. I didn't check it for myself, has anyone out there????
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02-02-2013, 11:02 AM
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#19 | |
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Gnarly Adventurer
Joined: Feb 2010
Location: ESCONDIDO, CA
Oddometer: 274
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Quote:
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02-02-2013, 01:40 PM
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#20 |
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Gnarly Infantry
Joined: Dec 2006
Location: Denmark - Jutland
Oddometer: 880
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By Sakurama´s thread i dare to say that
Longer stacks : More grunt Shorter stacks: More topend
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02-02-2013, 05:11 PM
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#21 |
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No neck tie, Ti neck
Joined: Feb 2009
Location: Morgan Hill Ca
Oddometer: 571
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02-02-2013, 05:24 PM
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#22 |
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Gnarly Adventurer
Joined: Feb 2010
Location: ESCONDIDO, CA
Oddometer: 274
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02-02-2013, 10:18 PM
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#23 |
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Gnarly Adventurer
Joined: Mar 2012
Location: Portland OR
Oddometer: 267
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Based on my working on sprints and midgets, the key thing is the stacks move the power band, long stacks make the power peak at lower RPM shorter ones at higher RPM.. Smaller diameter stacks raise torque, larger diameter stacks increase horse power at higher pm (To a point its not magic...) You have to balance runner length against diameter.
Typically you put the engine on the dyno and test say 4 sets of stacks ,, Map their performance, then you use the set that keep the motor on the power band at the RPM's the track demands of the car to keep it at speed. Dave |
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02-02-2013, 11:55 PM
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#24 |
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Gnarly Adventurer
Joined: Mar 2012
Location: Portland OR
Oddometer: 267
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Here is something that's close to the same idea..
this is a standard 32/36 Webber on a Nissan 1600. http://www.flickr.com/photos/3362913...in/photostream http://www.flickr.com/photos/3362913...in/photostream http://www.flickr.com/photos/3362913...in/photostream Fairly stock motor with headers, NISMO camshaft. The engine was only making consistent power between 4000 and 5000 with the webber alone. The velocity stacks lifted the whole power band and pumped the engine up nicely from 2500 to 4000, netting a really race-able power band from about 3000 to 5500 rpm. I included the filter pics for reference since its similar to the rottweiler. Cheers. Dave |
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02-04-2013, 02:17 AM
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#25 | |
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Alive
Joined: Apr 2008
Location: The Netherlands
Oddometer: 131
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Quote:
Long answer: Below a movie about my SE through the woods after heavy rain. My SE has the MotoHooligan airbox (and a very old and weak battery.) At 6:14 minutes the puddle is too deep and it killed the engine. https://www.youtube.com/watch?v=goJWXDOtRQc
__________________
< KTM 950 Super Enduro| Husaberg FE570 | Honda CBX 1000 Z > |
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02-04-2013, 06:39 AM
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#26 |
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Iron Man
Joined: Sep 2007
Location: Bilbao, close to the fu****ng Guggenheim
Oddometer: 2,002
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that frame looks too clean
seems never suffered too much mud , or you are just the number one cleaning itgood work anyway and agree about the amazing performance without air box, looks like the bike´s in a hurry all the time, but here where I ride, ain´t an option ata screwed with this post 02-04-2013 at 10:33 AM |
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