Dyno Chart difference between Pre-2010 and 2010 V - Kawasaki Versys Forum
 
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Old 03-04-2012, 10:43 PM Thread Starter
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Dyno Chart difference between Pre-2010 and 2010 V

I was checking out Leo Vince for the Versys and came across 2 of their models that have dyno charts. GP-8242 model appears to have a consistent stronger response throughout the RPM range versus GP-7918. After having concluding that the 8242 is a better product for the V, I noticed the stock exhaust curves were different. Further close up reading 'between the lines', noticed that the curves were done on different Versys, one is a standard 650 which I assume is the 2006 to 2009 model and the other one is a 2010 model.

I plot those out in Excel, capturing data at every 500 RPM from 4500 to 8500.


The 2010 model has better and stronger power and torque response, perhaps due to better F.I tuning with the O2 sensor. Unknown factors such as ambient temp, fuel type, etc that influences power response would probably not have generated such significant difference. Anyway, just for thoughts on the dynos difference between the 2010 and pre-2010 based on Leo Vince data.

LeoVince Reference:
GP-8242 underbody compact exhaust, done on a 650 V
http://www.leovince.com/files/F31603...OTA_VERSYS.pdf

GP-7918 exhaust done on a 2010 V
http://www.leovince.com/files/F9485/GP-7918_NOTA.pdf

Update: Don't take this data too seriously. How do we know if the Dyno machine has been updated, tweaked etc...?

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Last edited by 2daMax; 03-05-2012 at 03:00 AM.
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Old 03-05-2012, 02:55 AM
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Interesting! Happy to learn that the 2010 is more powerful. The development is going in the right direction, so to speak... :-)
Not much value for money in changing the can, except for the difference in sound...

Last edited by anders55; 03-05-2012 at 03:02 AM.
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Old 03-05-2012, 03:18 AM
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I definitely wouldn't take it too seriously. These companies are trying to sell something, never forget what that could result in.

my feeling is, if yer happy with how your model year runs, accelerates, looks, handles... than ignore this type of stuff.
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Old 03-05-2012, 04:41 AM
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I definitely wouldn't take it too seriously. These companies are trying to sell something, never forget what that could result in.

my feeling is, if yer happy with how your model year runs, accelerates, looks, handles... than ignore this type of stuff.
You're d-mn right. I would never consider replacing the stock muffler. If I want headache I'd rather drink too many beers....
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Old 03-05-2012, 07:41 AM
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That's just a discrepency error by Leo Vince. There is no engine or mapping difference from 2007 to current model year, and there certainly isn't an 8~9 HP difference from 4500 to 6000 rpm. Also, performance is unchanged.

Last edited by invader; 03-05-2012 at 06:51 PM.
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Old 03-05-2012, 10:26 AM
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Yep, same motor.

I do have a 8242 though and think it's the best one out there for the Versys. Fits the bike, tucks in nice, and works really well. Nice sound, no more honda lawn mower for me.


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2009 V - custom black-on-black - SOLD
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Old 03-05-2012, 11:00 AM
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Originally Posted by CJBROWN View Post
Yep, same motor.

I do have a 8242 though and think it's the best one out there for the Versys. Fits the bike, tucks in nice, and works really well. Nice sound, no more honda lawn mower for me.

Hey CB, what kind of bash plate is that? looks to be able to be mounted with little effort? do tell please
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Old 03-05-2012, 11:29 AM
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That's my handy work.
It really just a gravel guard for the filter and oil pressure sender.

Linky here: http://www.kawasakiversys.com/forums...ad.php?t=13413

Looks like I need to fix the photo links.


EDIT: fixed the photo links. I also see that I had actually posted a pattern for the guard. I hadn't remembered that. Post with PDF file here:
http://www.kawasakiversys.com/forums...7&postcount=15

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Last edited by CJBROWN; 03-05-2012 at 11:36 AM.
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Old 03-05-2012, 12:47 PM
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Originally Posted by invader View Post
That's just an discrepency error by Leo Vince. There is no engine or mapping difference from 2007 to current model year, and there certainly isn't an 8~9 HP difference from 4500 to 6000 rpm. Also, performance is unchanged.
+1 Kawasaki did not make any changes to the engine or tuning.
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Old 03-05-2012, 03:17 PM
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My '08 had been a trade-in and the previous owner put many new things on it. I liked them all, except I had the dealer remove the after morket fuel management system and exhaust. I wanted stock. If I wanted noise, I would have bought a Harley. Oh wait, I already have a Harley. It's personal preference -- for all of us.

Bama Dan

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Old 03-05-2012, 03:47 PM
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If I wanted noise, I would have bought a Harley. Oh wait, I already have a Harley. It's personal preference -- for all of us.
See what you mean and agree with you - personal preferences that's what it's all about. Off course, everybody is entitled to choose their own sound.
If I wanted to make some noise I could take a spin on my other parallel twin, 1970 Norton Commando (also yellow - like an easter chicken). That sound my V never can get near whatever exhaust I put on, better leave it stock.

Last edited by anders55; 03-05-2012 at 04:34 PM.
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Old 03-05-2012, 08:22 PM Thread Starter
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Quote:
Originally Posted by CJBROWN View Post
Yep, same motor.

I do have a 8242 though and think it's the best one out there for the Versys. Fits the bike, tucks in nice, and works really well. Nice sound, no more honda lawn mower for me.

Nice muffler and it looks good on the V. Doesn't stick out like a Akra of which is my dream muffler. Does it performed like what the Leo Vince dyno showed, no loss in low end, good response in the mid range all the way to the high revs?

I wonder why LeoVince has 3 different mufflers for the V?

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Old 03-05-2012, 09:02 PM
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Quote:
Originally Posted by invader View Post
That's just a discrepency error by Leo Vince. There is no engine or mapping difference from 2007 to current model year, and there certainly isn't an 8~9 HP difference from 4500 to 6000 rpm. Also, performance is unchanged.
Invader has a good point here but, it is proven that the Black 2010 V's are the fastest of the all the V's. I called Kawi and they cann't believe it. It is just one of those things we must all accept!





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Old 03-05-2012, 09:51 PM Thread Starter
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MTS...you mean like this?

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Old 03-05-2012, 11:56 PM
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MTS...you mean like this?
Looks pretty accurate but can you add in the one for the burnt orange line as according to my expert mechanical engineers the orange curve is slightly on top, remember it was a Kiwi who split the atom so we do know our stuff.
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Old 03-06-2012, 12:17 AM Thread Starter
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OK Phil, did the virtual dyno on the Orange. Those sheep in NZ is adding power to the Orange.


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Old 07-27-2014, 10:14 AM
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Performance

Quote:
Originally Posted by invader View Post
There is no engine or mapping difference from 2007 to current model year, and there certainly isn't an 8~9 HP difference from 4500 to 6000 rpm. Also, performance is unchanged.

I owned a 2009 Versys that would pull the front wheel: easily in first gear, pretty easy in second gear, and moderately willing in third- over a bump or small rise. It was PEPPY (from 3K rpm & up)....one of the sweetest motors I've had the pleasure of riding over the past 25+ years of street riding and ~50 bikes owned. The above performance was experienced without clutching and on relatively flat ground-- using technique and power.

I rode a 2011 Versys. It felt detuned, in comparison! No way would it pull the front wheel in 2nd/3rd, like my '09 (same conditions). This inquiry isn't about wheelies, but rather power (& torque). What changed from 2009 to 2011, to cause the bike to lose the "hit and pull" that it had in the 2009 bikes? Granted I've only ridden one 2011 bike, so I assume that it runs as it was engineered to perform. It (the 2011) ran smoothly and didn't miss...it just didn't have that feeling of raw horsepower/torque, like the last one.

Anyone know of anything that changed or why the '11 felt down on power (more specifically= torque)? It's a ~2,000 mile bike, not ragged out, stock.

Thoughts?

On a side note, the first Hayabusas were touted as the fastest, before they were "restricted" to limit topspeed.

Has there been a performance restriction engineered into the later model (USA) bikes? I could easily see Uncle Sam imposing regs to shift emphasis towards EPA & fuel economy. Could it be a California bike (I'll check), and do they have emission/operation requirements which impede performance ?

Thanks in advance. I was surprised! IF the bike was carbuerated, it felt as IF the needle needed to be lowered a notch or two (add fuel to mid range) and a high-flow air filter needed to be added, in order for it to breath/pull like I know it should. Hopefully, that helps summarize the experience a little better.

Last edited by bwwoodard; 07-27-2014 at 10:18 AM.
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Old 07-27-2014, 11:31 AM
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I got one I copied from MotoUSA.com for '13, looks quite a bit different but peak hp63.71 @ 8,800 max torque 43.21 @ 7,100.
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Old 07-27-2014, 11:35 AM
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Quote:
Originally Posted by bwwoodard View Post
I owned a 2009 Versys that would pull the front wheel: easily in first gear, pretty easy in second gear, and moderately willing in third- over a bump or small rise. It was PEPPY (from 3K rpm & up)....one of the sweetest motors I've had the pleasure of riding over the past 25+ years of street riding and ~50 bikes owned. The above performance was experienced without clutching and on relatively flat ground-- using technique and power.

I rode a 2011 Versys. It felt detuned, in comparison! No way would it pull the front wheel in 2nd/3rd, like my '09 (same conditions). This inquiry isn't about wheelies, but rather power (& torque). What changed from 2009 to 2011, to cause the bike to lose the "hit and pull" that it had in the 2009 bikes? Granted I've only ridden one 2011 bike, so I assume that it runs as it was engineered to perform. It (the 2011) ran smoothly and didn't miss...it just didn't have that feeling of raw horsepower/torque, like the last one.

Anyone know of anything that changed or why the '11 felt down on power (more specifically= torque)? It's a ~2,000 mile bike, not ragged out, stock.

Thoughts?

On a side note, the first Hayabusas were touted as the fastest, before they were "restricted" to limit topspeed.

Has there been a performance restriction engineered into the later model (USA) bikes? I could easily see Uncle Sam imposing regs to shift emphasis towards EPA & fuel economy. Could it be a California bike (I'll check), and do they have emission/operation requirements which impede performance ?

Thanks in advance. I was surprised! IF the bike was carbuerated, it felt as IF the needle needed to be lowered a notch or two (add fuel to mid range) and a high-flow air filter needed to be added, in order for it to breath/pull like I know it should. Hopefully, that helps summarize the experience a little better.
Hayabusas weren't restricted just a lot of BS flying around. I know a guy who has a 200 mph ZX-14 that he actually rides on the street. Takes about 400 hp to get there which comes from turbo and nitrous. I have a ZX-10R that will do 185 by GPS, speedo stops going up at 189 indicated but bike keeps going. Speedo is way optimistic.
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Old 07-27-2014, 11:48 AM
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I believe the second gen added the crossover in the headers.
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