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December 20th, 2014, 01:49 PM
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#1 |
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Participant
Name: Dave
Location: South of Seattle
Join Date: Oct 2012 Motorcycle(s): '94 K75 std Posts: Too much.
MOTM - Aug '15
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Dynamometer / Tuning / Jetting / Performance / Cost Question
Lots of talk about changing exhaust systems, shimming the carb needles, modifying the air box, and installing different air filters (and enhancing the fuel injection systems on fuel injected bikes). But so little data…
Has anyone on this forum done any of the above modifications using a dynamometer to maximize (and document) the performance (power and torque) increases? Or know someone who has? How many hours of dynamometer (and shop) time did it take? How much was gained? (Before and after power and torque versus RPM curves, if you've got 'em). How much did it cost? I’m especially interested how this has worked out for the Ninjettes, but please share experiences with other bikes as well. |
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December 20th, 2014, 04:44 PM
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#2 | |
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in your machine
Name: Scott
Location: Summer Shade, Ky.
Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot.
Blog Entries: 25
MOTM - Jun '17, May '16, Mar '15
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Quote:
I have not, but somethings are tried and true. I myself have done the needle shims, modifying the OEM mufflers, and a K&N filter, but I did it for throttle response, not HP gains. Like the bigger brother Ninja 500, Kawasaki has squeezed all the HP out of the little twins. All other modifications, jet kits, aftermarket exhaust, etc only net minimal gains in the power category, aftermarket market exhaust save weight mostly, there modifications do more for throttle response, but then again so does going on a diet and dropping 20 or 30 pound. IMHO it's not worth the dyno time to see 5 HP. So with that said, if you wanting to know will these things give you insane HP gains, my experience says no. But don't let that stop you, just know this before your disappointed. SIDENOTE: I'm talking about pre 2008 models, I have no experience with the 2008 & up
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violente et ignorantia ZX-2R BLOG Twitter and Instagram = Ghostt_Scott I'm not here to change your mind, just to inform. 
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December 20th, 2014, 05:22 PM
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#3 | |
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Daily Ninjette rider
Name: Hernan
Location: Florida
Join Date: Mar 2011 Motorcycle(s): 2007 Ninja 250 Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
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Quote:
https://www.ninjette.org/forums/showthread.php?t=114186 https://www.ninjette.org/forums/showthread.php?t=116101 https://www.ninjette.org/forums/showthread.php?t=113158 https://www.ninjette.org/forums/showthread.php?t=102408
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Motofool  .................................Never ride faster than your guardian angel can fly "Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí |
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