Non-official dyno specs 919 - Wrist Twisters
 
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post #1 of 17 Old 04-23-2012, 04:02 PM Thread Starter
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Non-official dyno specs 919

had the 9er dyno-ed saturday;
heres the conditions: 71.71 degrees humidity 31% SAE 1.01

max power=92.42
max torque=58.63


ok, now the rub....... 900RR header, with a scorpion 4 into 1 pipe, no baffle, running stock map, fuel to AIR RATIO WAS ALMOST PERFECT ACCORDING THE GUY RUNNING THE DYNO. oops, didnt mean to cap all that.


i was a lil disappointed, but happy that i know what it has.

Bill





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post #2 of 17 Old 04-23-2012, 04:07 PM
NWTB Non Stinky 919
 
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919 isn't a ground breaking bike in the power department. It has just the right amount for a great all around bike. I have zero desire for more.

That's what my GSX-R is for -_-
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post #3 of 17 Old 04-23-2012, 05:02 PM
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Many dyno's can get many results. How many runs did you do?

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post #4 of 17 Old 04-23-2012, 05:11 PM
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forget those numbers, let's see some power/torque curves.

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post #5 of 17 Old 04-23-2012, 05:42 PM
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Quote:
Originally Posted by zaq123 View Post
forget those numbers, let's see some power/torque curves.
exactly.

I could do two dyno runs and make 10hp difference on a stock 919 easily. Those numbers are a little low. But if the curves are nice and smooth along with A/F then your good to go.

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post #6 of 17 Old 04-24-2012, 05:22 AM Thread Starter
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the dude did 3 runs on it, they all netted the same, as for curves, it peaked hp wise at 9000 rpm, and torque was 6800-ish
also, i would have to either take a pic of spec sheet, or scan it, im fucking lazy, you'll have to take my word for it





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post #7 of 17 Old 04-24-2012, 05:43 AM
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the reason one would want to see curves:
what rpm range your bike spends most of the time? top end, low end, middle?
How much power/torque is available to you there?

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post #8 of 17 Old 04-24-2012, 06:34 AM
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Take a picture of it. Nice to see you around again.

Spoiler:

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post #9 of 17 Old 04-24-2012, 09:17 AM
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Quote:
Originally Posted by speedprotege View Post
Many dyno's can get many results.
Exactly! Your numbers seem a little low and mine seemed a little high. I bet if we both went to a third dyno, we'd get even different numbers...

https://www.wristtwisters.com/forums/...ght-25046.html

It's still a TON of fun, no matter what the numbers say!

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post #10 of 17 Old 04-25-2012, 05:31 AM Thread Starter
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post #11 of 17 Old 04-25-2012, 05:33 AM Thread Starter
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there ya go boys





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post #12 of 17 Old 04-25-2012, 09:41 AM
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Quote:
Originally Posted by REDROKR View Post
there ya go boys
wow no offense but... that's not a very good tune you have 3 dips in your curves (all within the useable rpm range to boot), and your a/f ratio is not consistent.

if it was me i wouldn't be happy with that and would insist they do it again! however, i expect very specific things from my bike that you may not so what you're looking for could very well be different.

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post #13 of 17 Old 04-25-2012, 03:36 PM
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Not sure if the axis are the same, but I think it should look more like this. This is two runs, 4 lines total (the top ones are kinda faded). Mine has some dips in it, too, but I don't feel them during acceleration:
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File Type: jpg Dyno_Results_10-6-10.jpg (126.7 KB, 27 views)

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post #14 of 17 Old 04-25-2012, 03:52 PM
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Quote:
Originally Posted by g00gl3it View Post
Not sure if the axis are the same, but I think it should look more like this. This is two runs, 4 lines total (the top ones are kinda faded). Mine has some dips in it, too, but I don't feel them during acceleration:
that one doesnt show the torque chart, nor the a/f ratio.

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post #15 of 17 Old 04-25-2012, 04:02 PM
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Quote:
Originally Posted by Pvster View Post
that one doesnt show the torque chart, nor the a/f ratio.
Torque chart is on the right axis. Very two lines way at the top (again, they are faded, may have to look at your monitor on a different angle). See where they cross at 9k RPM's?

Either that, or I'm an idiot and just don't know how to read these things. That is very possible.

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post #16 of 17 Old 04-25-2012, 04:16 PM Thread Starter
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i am the same Goog, dont sweat it, our bikes sound bitchin, fuck em if they cant see that, LOL!!!





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post #17 of 17 Old 04-25-2012, 05:41 PM
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Quote:
Originally Posted by g00gl3it View Post
Torque chart is on the right axis. Very two lines way at the top (again, they are faded, may have to look at your monitor on a different angle). See where they cross at 9k RPM's?
ah ok, i see it now thanks for pointing it out. wow, 6 dips in the torque curve how do you not notice anything lol.

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