ram air numbers - Wrist Twisters
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post #1 of 87 Old 03-05-2009, 08:47 PM Thread Starter
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ram air numbers

i started a new thread cause i know people are gonna nut up about this.......... so i took it off tk's thread and gave yall one to argue about......


the program was called "dynolicious" and it is sweet...

ok here is my bike setup...

17t front sprocket stock rear..
pc3 running the 003 map
k&n airfilter
tk919 designed and built ram air


downloaded and installed program.. calibrated it.. and then took a ride.. had iphone between legs on seat kinda sorta sittin on the back so it didnt fall off..

figured approx weight for bike and me.. 700ish which in reality the bike is 485ish.. i am 232ish... that is 717ish... if set it heavier it would have read higher horsepower..lol... (no cheating)

i had time to make 1 run.. here it is by the gps function... if you dont believe these numbers please feel free to pound sand up your butt...

0-60 3.72sec
0-100 7.73sec

60' 2.57
330' 5.43
1/8 7.85
1000 9.97
1/4 11.39

max speed 118.7
max accel 1.09g's
peak horsepower 122






now argue.... and that was with a 17t front sprocket...



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post #2 of 87 Old 03-05-2009, 08:49 PM
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Thats a good #, now get Nesty or someone else without the Ram air to make a run and compare. Or, even better, Plug your ram air and make a run so we can get a measure of the effectiveness of the intake.

"He was a wise man who invented Beer"--Plato
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post #3 of 87 Old 03-05-2009, 08:52 PM Thread Starter
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Quote:
Originally Posted by justintyme73 View Post
Thats a good #, now get Nesty or someone else without the Ram air to make a run and compare. Or, even better, Plug your ram air and make a run so we can get a measure of the effectiveness of the intake.
lol.... the ram air is soo well fitted..(scott did a awesome job) that i can kill the motor by putting my hand over the end of the ram air......... sweet....

i will see if i can get nesty to let me beat his bike for a run.....

if i still had the stock air cover i would swap them for a run... but i don't it was sacraficed so that all 919's should not perish but have.. ... ohhh wait wrong story...

it was cut up...lol



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post #4 of 87 Old 03-05-2009, 08:55 PM
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Can you Plug it(Take that potato out of the front of your swim trunks) and make draw air like stock for a run??

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post #5 of 87 Old 03-05-2009, 08:57 PM
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I believe all of those numbers except the 0-60 time.
Is that the maximum calculated 0-60 or is that what you did during your ride?
Because apparently the 919 is below 3.0 stock.

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post #6 of 87 Old 03-05-2009, 08:58 PM Thread Starter
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Quote:
Originally Posted by justintyme73 View Post
Can you Plug it(Take that potato out of the front of your swim trunks) and make draw air like stock for a run??
i could remove it.... but then i would be running a open airfilter....



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post #7 of 87 Old 03-05-2009, 09:06 PM
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I'm a little buzzed on wine, which is weird cuz I usually just drink beer, at the moment but I think the best comparison would be back to back runs usint the same measuring device, on the same bike, one with and one without the ram air.

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post #8 of 87 Old 03-05-2009, 09:15 PM
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Looks cool! I think this could be an excellent tool for determining before and after results on your bike Barton. Too bad the stock box got sacrificed. I don't know how hard it is to install tk's intake but it would be nice to see the two different results.

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post #9 of 87 Old 03-05-2009, 09:16 PM Thread Starter
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Quote:
Originally Posted by knorwj View Post
Looks cool! I think this could be an excellent tool for determining before and after results on your bike Barton. Too bad the stock box got sacrificed. I don't know how hard it is to install tk's intake but it would be nice to see the two different results.
and a big gigantic thank you to you for tipping me off on that program... that prog is the shizznit... you are tha man!!



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post #10 of 87 Old 03-05-2009, 09:20 PM
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Quote:
Originally Posted by barton664 View Post
and a big gigantic thank you to you for tipping me off on that program... that prog is the shizznit... you are tha man!!

I like the looks of it, I may have to download it as well. I have another version on mine that was free. I just haven't used it yet as there is still snow on the roads here and I don't think my blazer is up to the task of making a run haha.

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post #11 of 87 Old 03-05-2009, 09:30 PM
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Now that's a useful program. I think you'd need to do several runs back to back, stock and ram air, before you could pronounce any verdict. But very cool program, I may have to check it out.

'02 Honda 919 - She's the only one for me!

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post #12 of 87 Old 03-05-2009, 09:39 PM Thread Starter
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Quote:
Originally Posted by sugs View Post
Now that's a useful program. I think you'd need to do several runs back to back, stock and ram air, before you could pronounce any verdict. But very cool program, I may have to check it out.
i only had time to make one run... hopefully sunday me and tk are going to what used to be moroso speedway and i probably can find a place to really get after it... even with the 17t front i am having hell keeping the front down in 1st... also i can't throw my weight forward cause the phone may come unlodged and then i have no phone...

maybe if i had a tank bag with the clear plastic front that may work... hmmmmmm.... see if i can find one cheap...


but ya gotta admit... even with the tall gearing this thing is wicked quick...



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post #13 of 87 Old 03-05-2009, 09:46 PM
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Hmmm. Maybe some blue painters tape to hold it down to the seat or tank during runs?

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post #14 of 87 Old 03-05-2009, 09:53 PM
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Wow those iphones are almost as useful as the Imac was.

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post #15 of 87 Old 03-05-2009, 10:03 PM Thread Starter
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Quote:
Originally Posted by Basspiece919 View Post
I believe all of those numbers except the 0-60 time.
Is that the maximum calculated 0-60 or is that what you did during your ride?
Because apparently the 919 is below 3.0 stock.

That is actually what I ran... Real number... Bad launch couldn't keep the front down... Like I said couldn't throw my weight forward enough without loosing my phone....and remember 17t front t sprocket



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post #16 of 87 Old 03-05-2009, 10:08 PM
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great numbers brian. You need to do it on Nesty's for a comparisson. Also get a tank bag or wedge it under the seat with tape so you dont loose it. Doesn't the 17t increase HP but lower TQ? I have a 15t I will let you borrow if you would like. I just took it off for a 4 day trip to Florida, and wont need the 15t until I get back. I think the 15t on your bike would be wicked.

'04 919---40k----6/18/10 SOLD

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post #17 of 87 Old 03-05-2009, 10:14 PM Thread Starter
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Quote:
Originally Posted by zookmor View Post
great numbers brian. You need to do it on Nesty's for a comparisson. Also get a tank bag or wedge it under the seat with tape so you dont loose it. Doesn't the 17t increase HP but lower TQ? I have a 15t I will let you borrow if you would like. I just took it off for a 4 day trip to Florida, and wont need the 15t until I get back. I think the 15t on your bike would be wicked.

Dude thanx but I put the 17 back on because it was ridiculous trying to ride this thing in town... I cannot imagine trying it with a 15....

I don't think I could launch it with a 15... Without going over backwards



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post #18 of 87 Old 03-05-2009, 10:36 PM
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took a little while to learn to launch on the 15t. I put the 16t back on today and it was a lot easier to ride, and didn't require babying the throttle so much.

'04 919---40k----6/18/10 SOLD

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post #19 of 87 Old 03-05-2009, 10:53 PM
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Quote:
Originally Posted by barton664 View Post
Dude thanx but I put the 17 back on because it was ridiculous trying to ride this thing in town... I cannot imagine trying it with a 15....

I don't think I could launch it with a 15... Without going over backwards
I really, really want to give you some crap, solely for a little bit of fun, but instead will say good job. It has been a tough week, so I don't even have the energy left, maybe next week.

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post #20 of 87 Old 03-05-2009, 11:29 PM
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Thanks Barton for costing me $13! That ap is way too cool! If someone offers a nice vent, I'll sample some data!

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post #21 of 87 Old 03-06-2009, 03:09 AM
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122 hp out of a 919..... I don't think so.

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post #22 of 87 Old 03-06-2009, 03:44 AM
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Quote:
Originally Posted by Sniper View Post
122 hp out of a 919..... I don't think so.
It's not a real dyno...it's an Iphones EWAG of HP

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post #23 of 87 Old 03-06-2009, 04:27 AM
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Thats pretty cool.Think i'll try it when I ride later.

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post #24 of 87 Old 03-06-2009, 04:29 AM
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Quote:
Originally Posted by beefsalad View Post
It's not a real dyno...it's an Iphones EWAG of HP
Brian-can you set aside a some time next weekend? My job can go suck it--this is really important!

It really has to be Brian on his bike and then on my bike. Since dynos are plots of corrected hp/torque against RPM, there is no rider factor. But this is all calculated off of time-ALL rider factor. With my novice ass on them, my bike, Brian's, an RC51, a CBR1000RR are all going to have about the same estimated hp.

To prove this, anybody locally who has the RC51 or CBR1000RR please join Brian and I next weekend. This has NOTHING to do with me just wanting to ride these bikes-I am all about the science.

I can't wait to compare Brian on my bike and me on his and then watch you all howl when it shows the ram air actually removed hp!

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post #25 of 87 Old 03-06-2009, 04:41 AM
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Quote:
Originally Posted by Nesty View Post
Brian-can you set aside a some time next weekend? My job can go suck it--this is really important!

It really has to be Brian on his bike and then on my bike. Since dynos are plots of corrected hp/torque against RPM, there is no rider factor. But this is all calculated off of time-ALL rider factor. With my novice ass on them, my bike, Brian's, an RC51, a CBR1000RR are all going to have about the same estimated hp.

To prove this, anybody locally who has the RC51 or CBR1000RR please join Brian and I next weekend. This has NOTHING to do with me just wanting to ride these bikes-I am all about the science.

I can't wait to compare Brian on my bike and me on his and then watch you all howl when it shows the ram air actually removed hp!

This should be an episode of MythBusters!

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post #26 of 87 Old 03-06-2009, 05:43 AM
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That's some impressive power!

Me thinks a ram air + turbo would work out even nicer!

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post #27 of 87 Old 03-06-2009, 05:48 AM
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Damn, finally you've trumped my Bold with your iPhone! Cool as hell program, look forward to some comparison tests.

Now, how about that dyno run?

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post #28 of 87 Old 03-06-2009, 06:37 AM
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Can you stabilize the IP in the map slot of a small tank bag?
Curious about IP's accelerometer error percentage...
Someone online must have done a dyno comparison (save your $).

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post #29 of 87 Old 03-06-2009, 06:54 AM
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Quote:
Originally Posted by dream View Post
Can you stabilize the IP in the map slot of a small tank bag?
Curious about IP's accelerometer error percentage...
Someone online must have done a dyno comparison (save your $).
Ask and you shall receive

Quote:
Replacing A Drag Strip & Dyno With An Iphone?

The Question:
Does it really work? And by "work", we mean, "is it at all accurate?" Late model iPhones and iPods use accelerometers to communicate the device's orientation to its display, so that if you turn your device on its side, the screen switches its display from vertical to horizontal, and vise versa. Dynolicious claims that its software can use either device's built-in accelerometers to track a vehicle's acceleration, and by plotting these movements over time and adjusting for vehicle weight, wheel horsepower and acceleration can be inferred.

The Test:
Dynolicious' assumption is logical, but based entirely upon the accuracy of the iPod or iPhone's accelerometers, and the ability of the user to follow simple instructions. To put their product to the test, we procured a supercharged '08 xB test car, an iPhone loaded with Dynolicious' $13 software, and visited the local dyno and dragstrip.

Our fist order of business was to calibrate our iPhone. We followed Dynolicious' on-screen calibration instructions precisely, and input our vehicle's 3,355-pound weight, taken by G-Dimension's Intercomp corner weights.

Next, we visited the Dynojet dynamometer of MD Automotive, and rolled out three baseline runs of our xB, for ending average figures of 210.3 whp and 186.6 lb-ft of torque.

Finally, we visited the 1/8 mile drag strip at Irwindale, Calif.'s Toyota Motor Speedway, where we secured our iPhone in the xB's cup holder (also, as per Dynolicious instructions), performed a hellacious 2nd gear burnout (click importtuner.com for the vid), and powered down the 1/8 mile to a [email protected]


After the smoke had cleared, and we began down the return lane back to the staging area, we glanced down at our Dynolicious-loaded iPhone: 10.45 sec @ 73.1 MPH, and a peak horsepower number of 175 - nearly three tenths of a seconds and three mph off our official time, and 35.3 whp away from actual dyno numbers.

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post #30 of 87 Old 03-06-2009, 07:01 AM
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That is a really cool program and an interesting test.

I am going to question the weight you put in. You really need to find a way to measure the bike weight. 485 is the stock wet weight some magazine measured. Your bike is not stock. Switching to 900rr exhaust saved a bunch of weight. (I think somebody here measured the stock exhaust and his 900rr and it was about 20 lb different) Ideally, you should weigh yourself (with gear) and the bike. You probably got pretty close by rounding down to 700 but I bet you still guessed a little heavy. Also, how much gas did you have in the bike? 1 gallon of gas = about 6 lb. 4.5 gallons = about 27 lb. I'm not positive but I would guess the wet weight of 485 includes a full tank of gas.

The other thing I'm not sure about is the accuracy of the GPS. Does the iphone give you an accuracy on the location? The best way to correct for that is to do several runs and figure the average is about right. It would be acceptable to throw out a run if you know you messed up as a rider but not if you thought it was good run and the numbers didn't show it.

Comparing your bike to Nesty's is a great idea. I would be very interested to see the results. What kind of exhaust does Nesty have? Make sure you compensate for the weight difference in exhaust and have about the same amount of gas in the bikes. Keep up the good work, it makes for interesting reading.

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post #31 of 87 Old 03-06-2009, 07:02 AM
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post #32 of 87 Old 03-06-2009, 07:09 AM
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Thanks Ridge! So 17% low ehhh, much better lower than higher! For a slower 4x mass car it will be more accurate than a fast bike...

Found this amazing head's up ap for pilots and note:
http://www.i-hud.com/iHUD_suite.html
The accelerometer used in the iPhone and iPod touch typically has ± 0.06g of offset per axis from the factory. This can be corrected out by using the "Advanced Calibration" option in iHUD settings.

What killer aps!

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post #33 of 87 Old 03-06-2009, 07:11 AM
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Oops, I missed ridge's post while typing. Evidently it uses accelerometer and not GPS.

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post #34 of 87 Old 03-06-2009, 07:12 AM
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That's why it should be tested on the same bike, back to back only changing the airbox, even if the Numbers Themselves are high, the difference is what we really want to see.

"He was a wise man who invented Beer"--Plato
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post #35 of 87 Old 03-06-2009, 07:25 AM
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Quote:
Originally Posted by timbo813 View Post
What kind of exhaust does Nesty have? Make sure you compensate for the weight difference in exhaust and have about the same amount of gas in the bikes. Keep up the good work, it makes for interesting reading.
I have a stock 2003. The only potential weight/aero differences will be the fairing and Renthals.

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post #36 of 87 Old 03-06-2009, 07:26 AM
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Quote:
Originally Posted by justintyme73 View Post
That's why it should be tested on the same bike, back to back only changing the airbox, even if the Numbers Themselves are high, the difference is what we really want to see.
exactly...
course I just posted the same thought in the other thread...oops

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post #37 of 87 Old 03-06-2009, 07:43 AM
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All of the Dynolicious numbers are pure conjecture until compared to actual dynomometer numbers and done under controlled, verifiable conditions. Anyone can download this app. use it and post the numbers, but those numbers can not be physically verified by anyone but the person that took the readings. Just like statistics, the numbers can be fudged too easily.

Your comparisons have to be exactly identical in nearly every way. The accelerometer has to be fixed to the bike so that it cannot move at all. If there is any shift of the accelerometer, it will give false readings. Stuffing it between your legs (eww!) is not a good way to ensure it is fixed in place. Using a RAM mount made for the Iphone would be an ideal solution, as it is designed to keep the phone in place. Recording the runs on video with the conditions set, would be another good start.

Until then, all of this is hearsay.

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post #38 of 87 Old 03-06-2009, 07:55 AM
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How about INDUSTRIAL velcro on the IP's cover to the tank? You gotta give Barton extra dexterity credit for shifting fast with IP inside his knees! Where's the video?

I wonder how many kids will be watching their IP at speed when they rear end someone and die.

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post #39 of 87 Old 03-06-2009, 08:00 AM
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All these whiners are just jealous because Barton is cool and they are not.


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post #40 of 87 Old 03-06-2009, 08:17 AM
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Quote:
Originally Posted by Super Sneaky Steve View Post
All these whiners are just jealous because Barton has cool man boobs and they do not.

Ewwwwwwwwwwww! I'm not jealous ...

It's better to have loved and lost than live with the psycho for life!
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