Hi all!

iPhone owners rejoice! Dynolicious is an App that uses the iPhone's accelerometer to measure vehicle dynamics. For $12.99 that is.


Below is my quick review after ONE run (cuz it's late at night and I'm sleepy :P)


Calibration does not work (doesn't even register first vertical calibration)

However, doing an uncalibrated run still returned fairly close to magazine claimed times.

02 Acura TL-S
magazine claimed 0-60: 6s
magazine claimed 1/4 mi: 16s

Dynolicious 0-60 (w/out launch): 7.53s
Dynolicious 1/4 mi (w/out launch): 15.77s

Suggestions:
- Would be nice to be able to save the visual Dyno chart with results.
- A bit more clarification regarding "Peak Horsepower" and "Wheel Horsepower"
- Instructions regarding Rollout settings

Awaiting update!!



Is it worth $13 bucks? I figured I've bought dumber things for more... so why not :P

 

re: calibration

Thought I'd address this before someone else does :P


Granted the calibration doesn't work (yet), going into Skidpad mode reveals that my phone's current calibration returns a 'centered' reading of

Accel: 0.95g
Brake: 1.00g
Left: 1.05g
Right: 0.98g

Which isn't too bad.

 

This sounds interesting, but I wonder if there's any way to verify those numbers are correct. Does the app save the data it records? If so, is there any way to hook it up to a computer to view the data?

 

So far nope. First release, and only appeared on Apple App store 6/23/08. Seems to be generating quite a bit of talk amongst car forums... so hopefully the company'll further develop the app.

 

Is there a similar app available for the AT&T Tilt Windows Mobile phone?

 

Is the 2TG TL-S really a 15 second car? I've never taken mine to a track. 0-60 sucks too lol.

 

I just downloaded the app to my iphone... I'll give it a shot tonight. I hope it lives up to the hype!

 

14.8 second car. BUT If you dont know how to launch it, it can easily be a 15 second car.

 

typo on the first post.

claimed
0-60 in 6s
1/4 mi in 15s

In it's day (2001) those were impressive =)

and as said, I didn't launch, as I only wanted to see if the silly $13 app would even register vehicle dynamics.

Fun toy regardless =)

 

you kno what, i've actually had this app for awhile on my iTouch and im pretty impressed with this app.

i need to take it for more funs as i want to see an average whp and want to see the gains with the ATLP exhaust that i will have soon hopefully.

 

saw this on streetfire

I'll end up buying it on my dad's IPhone...

I'm too broke to get an iphone and buy an app.

 

How does it pick up HP?

 

i wasn't sure if it was just my phone that couldn't get the calibration or everyones. but it seems like a common problem so thats a bit of a relief. i also checked the dynolicious website they said there should be a update soon

 

through the sensors in the iphone/itouch

like how you can tilt your iphone/touch in certain games..
it feels the "g-force" when you accelerate and decelerate and such and such

you enter in your cars info.. such as weight. and drivetrain lost percentage.. 0 for calculate whp..

i don't kno much about itouch/iphone so somebody can probably chime in and explain better than i.

 

how can we know what our drivetrain lost % is?

 

^^^I think it's somewhere between 15%-20% for auto

someone correct me if I'm wrong.

 

thats exactly what it says on the dynolicious app.

haha. it says 15%-25%

 

I was always told 8-10 manual and 12-15% loss for Auto. Never heard for 25% loss on auto.

 

im guessing it says 15-25 only so that all the other people who uses it with their car sees it.

 

Super super optimistic numbers. 25% might be a little high but not by much. Drivetrain loss varies based on a million different factors - as does your engines HP output. I think you'd find that on a Dyno the 20% range would be pretty close.

8% loss I can't see ANY vehicle doing - unless you are calculating loss based on dyno numbers of an underrated car. For example the new GT-R dynos WAY over what Nissan rates it as. That doesn't mean it has less drivetrain loss.

HP #'s are a fickle game of "who knows". You change the weather, the dyno, the humidity, what you had for breakfast, etc - and you'll put down different numbers each time. It's where the term "Dyno Queen" comes from. So using a program like this isn't any different. It's a neat parlor trick and if you did several runs and averaged them you'd come pretty close. It's not worth it if you're going to do 1 run and then stop using it, but if you want to do before/after comparisons of mods it will give you a pretty reasonable comparison.

 

consider 25 to 30% drivetrain efficiency loss for FF AT.

Looking at my numbers from last nights run... My peak whp was 197.

197 x 1.3 = 256.1

Which is not only pretty darn close... But generous for my broken beauty of 147k miles.

(replying on iPhone sucks.... I'll write more later)