ninerrider01
Novice Class
Posts: 70
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posted August 07, 2006 08:48 AM
Top Speed Restriction on ZX14
Hey folks,
It's been interesting reading all your discoveries on this new bike. I enjoyed reading here and Brock's site about he secondary butterfly plates.
Then I read an artical in Cycle World (I think) comparing the zx14 to the busa and they made a comment that the secondary butterfly valves were held closed under 6000 rpms in the first four gears and ALSO AT UPPER RPMS IN 6TH GEAR TO LIMIT BIKE TO 186mph.
I haven't seen this mentioned and know some of you will be doing top speed runs and that Ivan's TRE wouldn't remove this restriction if all it does is fool the ECU into thinking it's in 6th so I thought I'd share.
  
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fastestbusaaround
Needs a life
I eat Fish...
Posts: 7889
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posted August 07, 2006 09:21 AM
Not aware that they close in 6th above a certain RPM...where'd you see that? That makes no sense at all...in any case, once they are removed, end of story...
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FYYFF!!!
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swft
Needs a life
Full throttle!
Posts: One MEEEEEELLION
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posted August 07, 2006 10:27 AM
I don't recall reading that in the article. Will have to go back and read it again!
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cls
Expert Class
Posts: 410
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posted August 07, 2006 02:59 PM
Yeh, I don't recall that either.
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ninerrider01
Novice Class
Posts: 70
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posted August 07, 2006 05:26 PM
Whoops, my bad, it doesn't use the butterfly valves, instead the "...engine management computer ...not only limits peak revs in top gear to restrict maximum velocity to the industry's self-imposed 186-mph speed treaty...".
Sorry. I guess all I really picked out was that the computer is following a different program for 6th gear in which it restricts top speed.
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bayou boy
Expert Class
Posts: 147
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posted August 09, 2006 02:21 PM
i have one on my bike , i get a lil more not much, but i will see what it does when i akrapovic comes out with a pipe, that's the only pipe i use,hoprful adding pc, tre will do it
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