Ducati Monster Forum

http://www.dynolicious.com

Dynolicious is the first automotive performance meter available for the iPhone and iPod Touch. Dynolicious uses the hardware built-in to your iPhone to measure the performance characteristics of your vehicle. No external wires or equipment is necessary, simply slip the iPhone into a cradle or cupholder and go!

Some of the performance metrics Dynolicious can measure:

0-60 Acceleration
1/4 Mile Elapsed Time
Lateral G's
Horsepower

Unlike other accelerometer-based performance meters, Dynolicious uses the advanced data-handling and display capabilities of the iPhone to make the most of your performance testing. Dynolicious maintains a history of test runs, showing you averages and trends in your results. Dynolicious also allows you to enter modifications performed to your vehicle, and will instantly show before-and-after results to easily identify gains or losses.

Sounds cool!

Are you running it?

Cost?

(I am too lazy too look)

no, not yet. I'm going to use a buddys iPhone and try it out. I believe that it's $12.99. Pretty effin cheap if you ask me.

The above post was actually NOT Duck-Stew but I......


Truth in advertising and all

Goddamn employees using my computer ;)

This is a gag app, right?
Without physical hardware componentry, how can it possibly render meaningful data?

nope, no gag here amigo. My coworker got it and said it's pretty accurate (granted he was testing on a Honda Element) but it was in line with what you'd think the results would be.

When it comes to the technology, I can't say definitively what technology makes something meaningful or not, but according the the website, it's within a small margin of error.

similar to the way this works:  http://www.gtechpro.com/

the iphone has multiple accelerometers in it. same principle.

ok I have to chime in here. I haven't looked at the link but the first thing that came to mind was that the iPhone could be a simplified gtech. It doesn't seem like it could do a very good job though since it only has x and y plane acceleramators which are not too sensitive. Plus it has no way to read the rpms and therefore could not give you horse power. I am sure it is a fun toy but I wouldn't put too much stock in it.

I did read a while back about somebody using a wii mote hooked up to a laptop for a similar device which is probably more accurate than the iPhone thanks to more sensitive accelerameters.   8)

It also has GPS-A.  That's prolly a big part of it.

I considered that too. Not sure about the 3g but the 1st gen skyhook gps is certainly not sufficient for use in an app like this.

I think it is cool and probably fun to play with but I would laugh at any body claiming hp gains on mods or in general based on the results of this app.  ;D

It's easy to be skeptical about this product (I am), but FWIW the iphone's got accelerometers on all three axes.

I looked into the page and a little more of what the iPhone might be able to do and maybe it can do an ok job. HP is calculated using wieght so that is only going to be as accurate as the data you input. Don't forget driver and fuel at about 6lbs per gallon.

Garmin & TomTom would be wise to add some accelerometers to their gps devices with similar software as an added feature. Stand alone gps is going to have to do something to compete with the phones these days and that seems like it might make a better platform. Basically gps and gtech combined with massive amounts of storage to provide real world performance logs. They could even go a step further adding omdbII to utilize car data for the ultimate driving utility. Precise navigation and performance information in one package.

Do it! Quit your day job. Or, don't and just write them a letter.  [beer]

Word on the street is that the next edition of the iPhone will come with a built-in Flux Capacitor!  [thumbsup]

Seems odd that it has 3 accelerometers... perhaps that's default for the chips.

Don't see why it would need three, but I don't have one, so no idea what other apps could possibly use three.
Does it have games that would use  accelerometers or a pedometer function?

so the phone can determine it's orientation. among other things, this is how it does the automatic switch from portrait to landscape.

here (http://www.st.com/stonline/products/literature/ds/12726.pdf) is the datasheet for the chip being used.

and here is the tip of the iceberg as to what you can do with them:

http://www.youtube.com/watch?v=Wtcys_XFnRA

Yup, that is just the way the chips come. The iPhone being basically a computer there are now just about any apps you can imagine. Games, pedometers, dynamometers and others which make use of the phones features. It is nice to have a phone that is such an open platform even if Apple does get in the way of third party apps and mods more often than not.

wow, i am so out of the iphone loop...

Don't feel bad, if the topic hadn't come around to accelerometers, I woulda had nothing.

nick, i would think it has 3 to be able to follow all 3 axes...

...so apparently it works :

http://www.youtube.com/watch?v=0-DFbJQbeSY&eurl=http://gizmodo.com/

You have to have 3 axles ??[roll]



All my vehicles only have two











 ;D

I think he meant, axe you 3 questions...

Nah, I think he was talking about that body spray for guys that read Maxim.


Honestly, I can't tell you how shocked I am that Luca spelled the plural form of axis correctly.  Bravo sir  [clap]

 ;D

what a fantastically warm and IZ_ feeling knowing i have a gaggle of nerds at my disposal!  ;)

Speaking of nerds - i noticed something. A little detail that Garage 419 failed to note - reaction time. This really effs up a key point they were making about the 1/4 miles times. Overlooking reaction time causes a discrepancy between the ACTUAL time it takes when you begin moving and ultimately cross the finish line vs. how long it takes from the time the light turns green to then crossing the finish line. See where I'm going with this?

When they showed the drag time slip, the R/T on was .926, that means the car left the line .426 seconds after the green (if you don't understand that, read up on R/Ts). The clock (that ultimately timed them at 15.614) starts ticking at the green. Ruh roh...problems.

Homie threw the gtech pro on the ground and stomped on it because it was almost a half second off the slip time...however he was way quick to do that. The gtech read 15.16. When you add the .426 seconds sitting at the line (while the clock is ticking)...the time is TADA...pretty fuggin accurate (15.58).   The iPhone reported 15.64 --- which as they played it was OMG!!! .01 off of the slip time --- however, when you add .426, the iPhone is the one a 1/2 second off and the gtech pro becomes the winner of 1/4 mile drag time.

Needless to say, the $13 app is cool, and a great measure of relative performance (when comparing to another dynolicious result). And from what they say about the functionality of the gtech and the $150 price tag, I'm in even more support of the dynolicious. But, Garage 419 went way out of their way to prove the point, the wrong way.

Nuff said.

[clap]

"Two Separate performances are monitored for each run: elapsed time and speed. Upon leaving the staging beams, each vehicle activates an elapsed-time clock, which is stopped when that vehicle reaches the finish line. The start-to-finish clocking is the vehicle's elapsed time (e.t.), which serves to measure performance. Speed is measured in a 66-foot "speed trap" that ends at the finish line. Each lane is timed independently."
http://www.nhra.com/basics/basics.html


Your ET has nothing to do with your RT. The clock starts when you leave the staging beams. It only matters when race heads up (the first to the finish line wins).

And how would the gtech know when the light turned green?

Good points. I would say the answer is in between but closer to the longer times Matt has stated. Because the iPhone and G-Tech both start the clock as soon as the accelerometers detect a g-load (i.e. as soon as the car starts to roll). The et doesn't start untilt the staging beam (of which there are usually 2) is broken . I haven't watched the video closely enough to see if 419 deepstages but assuming he does not that means the car starts rolling a bit before the time starts.

Thecar tire has to clear the second beam before time starts. Assuming a 12" width (I think that is the standard used) of tire where it crosses beam the car will already have traveled 12" before the et clock starts. So the accelerometers should have a slightly longer total time than the et of the track.

I came across this detail after posting and y'all beat me to my correction. So, I stand corrected.

my horse-like pistol still shoots...

I own a pistol and rode a horse a couple of months ago ;D

No prob madmatt I hate when the math is perfect, but not [drink]