2017 Ninja 650 - Page 2 - Kawasaki Ninja 300 Forum
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post #11 of 40 (permalink) Old 11-12-2016, 01:49 AM Thread Starter
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This Akrapovic exhaust must be an option from Kawasaki.. the stock KRT does not come with it.

Kawasaki has Akra option for H2 as well.

H2 Kawasaki Factory Akrapovic


H2 Aftermarket Akrapovic
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post #12 of 40 (permalink) Old 11-12-2016, 01:59 AM Thread Starter
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Originally Posted by Zaph View Post
The lowered redline is what sucks the most on these new Euro 4 versions. It's just too sad that these choking strangled versions of new bikes will make their way over to the states because the makers are too cheap to give us free breathing versions.

Also, if you hate vibration, bars are better than cast clip-ons. The bars look just like what's on my Ninja 1000, and they transfer engine vibrations strongly while the Z1000 with the bars has no problem.

If they fixed anything on the 650, I hope it was that horrible direct-link rear shock. My old 09 650 was probably the worst handling bike I rode since the 80's.

The style looks nice, I'll give it that.
For 2013-2016 model, the Two Brothers exhaust for Ninja 650 weighed 11.5 lbs lighter than stock.
It also gained 7.5hp and 4lb-ft..
So I think you can get similar result for 2017 Ninja 650.

http://www.twobros.com/sku/005-31801...R-FULL-12.html

In addition to exhaust, if you get K&N pod intake, Power Commander V, and 38mm(or larger) throttle body and you should be able to get a pretty good result.. I don't know about 10,000rpm redline though...how do you raise it.
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post #13 of 40 (permalink) Old 11-12-2016, 06:40 PM
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Timpo,
With a flash tune, they can unleash the revs limitation.
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post #14 of 40 (permalink) Old 11-12-2016, 09:00 PM
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Quote:
Originally Posted by Timpo View Post
This Akrapovic exhaust must be an option from Kawasaki.. the stock KRT does not come with it.
http://www.youtube.com/watch?v=7hQl7cF5s4M

Kawasaki has Akra option for H2 as well.

H2 Kawasaki Factory Akrapovic


H2 Aftermarket Akrapovic
They made it seem like it came in stock. But that's nice
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post #15 of 40 (permalink) Old 11-14-2016, 12:38 PM
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So being new to bikes, how much hp change can you estimate based on weight gain/loss? For this bike dropping 48 pounds would that basically negate the 3hp loss from the butterfly valve change?

2015 Ninja 300 SE
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post #16 of 40 (permalink) Old 11-14-2016, 12:45 PM
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So being new to bikes, how much hp change can you estimate based on weight gain/loss? For this bike dropping 48 pounds would that basically negate the 3hp loss from the butterfly valve change?
ABSOLUTELY! Especially if the weight is higher up on the bike. On a sport bike, I'd trade 40-something pounds for 3 hp every day of the week.
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post #17 of 40 (permalink) Old 11-14-2016, 01:02 PM
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ABSOLUTELY! Especially if the weight is higher up on the bike. On a sport bike, I'd trade 40-something pounds for 3 hp every day of the week.
Yeah that's what I was thinking. I've done a lot of work on my truck (Nissan Titan) and all of my thought process for my bike stems from that. For the truck we roughly estimate that 10 pounds weight reduction is about 1hp gain so losing that much weight off the bike seems like a great trade for a 3hp loss that is easily recouped from other mods.

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post #18 of 40 (permalink) Old 11-14-2016, 02:43 PM
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How long has it been in production outside of the USA, or should one wait a model year for the bugs to shake out? This bike already sells in Europe configured slightly differently, right?
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post #19 of 40 (permalink) Old 11-14-2016, 04:22 PM Thread Starter
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Originally Posted by LaxDfns15 View Post
Yeah that's what I was thinking. I've done a lot of work on my truck (Nissan Titan) and all of my thought process for my bike stems from that. For the truck we roughly estimate that 10 pounds weight reduction is about 1hp gain so losing that much weight off the bike seems like a great trade for a 3hp loss that is easily recouped from other mods.
I'm not an engineer but I have spoken to some engineers...weight reduction isn't that simple.

The best part to remove the weight is moving components. Wheels, tires, brake rotors, drive shaft, differential, etc.
Some engineers say removing 1 lb off wheel could equal to 15 lb weight saving, although it is case by case.

If you don't understand, think about you carrying a 10 lb backpack and start walking. Not much of difference isn't it?
But think about walking with 10 lb shoes. Which is your moving component, I bet you would take a lot of effort and even slows you down quite a bit.

This is why people get drastically bad result when they get 22 inch rim on their Mustang and stuff because they're so heavy.

I've read an article written by BMW engineer as well.
As you may know BMW uses V6 for modern 3 series, not Inline-6. When they switched to V6, a lot of BMW fans rant about it.
But BMW engineer said going from Inline-6 to V6 gave them instant 20%(or something?) more horsepower because of significant weight saving on crank shaft.
V6 configuration will allowed lightweight and short crankshaft, where as Inline-6 needed much longer and heavier crankshaft.
They kept piston, rod, valve, etc...everything the same and made it V6, the power difference was so drastic that they simply had to ditch their Inline-6 tradition.
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post #20 of 40 (permalink) Old 11-14-2016, 04:25 PM Thread Starter
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How long has it been in production outside of the USA, or should one wait a model year for the bugs to shake out? This bike already sells in Europe configured slightly differently, right?
http://www.kawasaki.eu/en/products/s...V1dClFaDF4KXgw
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