• Jul 29th 2008 at 11:57AM
  • 41
The world has gone iPhone crazy since Apple released v2.0 of its sleek mobile device, and while GPS and 3G have been big draws, the multitude of available software apps in the new App Store has been the real wild card. One app that has us really psyched is a new automotive performance meter called Dynolicious from BunsenTech. It uses the accelerometer inside the iPhone to let you record 0-10 through 0-100 times, quarter mile and trap speed, Lateral Gs, horsepower and more. Results are also displayed in real-time on the phone itself with graphs and a speedometer. You can also configure the tool with updates to your car, weight, before and after performance measurements, and keep a complete history of all your runs. The kicker is that you don't even have to plug in your iPhone anywhere, just set it in the cup holder and drive. The folks at Dynolicious promise 0-60 accuracy to within .08 seconds and a quarter mile speed to within 1.5 mph. The performance meter software should also work with the iPod Touch.
The Dynolicious performance meter is now available on iTunes for $12.99 despite its own website saying that it's coming soon. The app has an average rating of four stars out of five so far with 11 user reviews and counting. We're going to purchase the software ASAP and take it for a spin, so we'll let you know soon if it delivers on its lofty promises. Check out more screen shots of Dynolicious in the gallery below. Thanks for the tip, Fooman!

[Source: Dynolicious, iTunes]

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    • 1 Second Ago
      • 7 Years Ago
      Downloaded it and have done two runs in my 08 R32.
      1st: non WOT in the rain. 0-60 in 7.28, slow but wanted to test it before WOT.
      2nd: Launch control, TC off, damp. get ready: 0-60 in 2.75! HA! Though the car did feel a lot faster than the first, it was not 2.75 seconds fast! Oh 0-100 in 4.72 max of 154.2 in 8 flat!

      I wish...

      I will fiddle around to see what I/or it did wrong.
      • 7 Years Ago
      Anyone try this on an airplane, yet? What's the 1/4 mile time? :)
        • 7 Years Ago
        How could someone try that on an airplane? You have to have your electronic devices stowed safely before take off.

        Although I might have accidentally forgot but it got all confused and crapped out at 84.4mph. 0-60 time was about 14 seconds.
      • 7 Years Ago
      Well my rented 2008 Hyundai Azera Limited posted an average 0-60 of 7.35 seconds with a peak horsepower of 198hp at the wheels. That seems pretty accurate to me.
      • 7 Years Ago
      Just saw on the RSS feed for new iPhone apps another one that does the same thing called G-Tac for $4.99

      Can you guys compare them for us?
      • 7 Years Ago
      I'm a little skeptical...

      On the last page... they ran a 16.73 @ 100.9? With that kind of trap speed, he should be in the mid-13s to low 14s. 16.73 is typically in the high 80s for trap speeds.
        • 7 Years Ago

        None of those cars in his list has the performance to hit a 100 with a bad launch.

        Focus SVT? Cooper S? Mustang V6?

        But even if it was a different car not listed in the screen caps... 100+ MPH trap speed with "229hp" on a botched launch? 100 MPH trap speed sounds about right for a car with 229 WHP on a good launch... but on a bad launch its just not happening.

        I WANT this product to work as advertised, I'd love to see some benchmarks for my vehicle on the fly, even if it was remotely accurate. I'm just skeptical based on the screens I see above. I'll wait for the review, if its good, I'll buy it and test it out my Suzuki Verona rental car.
        • 7 Years Ago
        And if you looked at the other figures, you would see a 3.47 60', which means a very rapid rest of the quarter to finish the other 1260' in 13 seconds. Botched launch would be my guess or very slow first sixty feet before punching it.
        • 7 Years Ago
        I noticed that too.

        But if this wasn't an actual screen and just a mock-up and the thing works...well...can't beat $12.99 (plus iPhone or iPod Touch), with a stick. It may not be 100% accurate, but it'll get you a decent ballpark estimate.
      • 7 Years Ago
      Genius! Love it!
      • 7 Years Ago
      I downloaded the app and tested it out. To the people who are nitpicking about trap speeds and 60' times, they are just examples. It's easy to spoof the phone into thinking it's being used by tilting it.

      It's similar a G-analyst. It's reasonably accurate, but provides not much more than just peak numbers. Maybe you could use it for rough tuning, but the program doesn't give you dyno charts. Perhaps that would be a good idea for a revision in the future.

      It definitely uses just the accelerometers, no GPS as far as I could tell. GPS would likely not be accurate enough.

      It's a really neat program. I haven't had a chance to actually do a run in the car yet, but the skidpad feature seems to be pretty good. Unfortunately it doesn't register anything more than 1G, so it's not very helpful for anyone using race rubber on an autocross course.
        • 7 Years Ago
        ...actually I was playing around with it and simulated a 1/4 mile run where acceleration was pegged at 1g. The 60' time was 2.04 seconds. I'm not a 1/4 mile expert, but isn't that a realistic number for a reasonably quick car?

        Also the minimum 1/4 mile time was 9.22 seconds at 194.1. I suspect that it won't be very accurate when you get below 14 seconds or so... That's around what my car can do... I'll try it out tonight. :)
      • 7 Years Ago
      how can it know your cars hp?
        • 7 Years Ago
        extrapolated from weight and acceleration, factoring out a drivetrain drag factor.

        A dyno does the same thing (more accurately, directly from the wheels) by measuring the acceleration of a known-weight over Time. If the time variable decreases, or weight or speed variables increase, it signifies more power being applied.

        This app just asks you to input vehicle weight, and measures time and acceleration.

        The question about the app... does it use the accelerometer for the speed reading, or does it use the GPS receiver (perhaps whichever it can find)

        I wish someone had a dock-connector dongle to plug into a Gen 1 iphone, to substitute for the 3G's GPS chip. I don't have 3G in my area, and I don't want to replace my whole iPhone for GPS, especially if I could just plug a little dock plug in for that feature, and have the software work just like a GPS enabled newer phone.

        I have a vent mount for my iPhone in my turbocharged stage II Legacy... I might have to download this software and give it a try... I wonder if anyone is going to bring out a live OBDII or CanBus reader to plug into an iPhone, for live data display of ECU data.
        • 7 Years Ago
        Quote from mk: - " wonder if anyone is going to bring out a live OBDII or CanBus reader to plug into an iPhone, for live data display of ECU data." -

        Well, it's not for the iPhone but I purchased a Scangauge II a few months back and it does exactly that. http://www.scangauge.com

        In addition to displaying some ECU data(varies depending on the vehicle), it also works as a trip computer which keeps track of numerous items(distance travelled, gallons used, hours driven on that tank of fuel, cost per mile, miles to empty, time to empty, avg speed, highest speed, highest water temp etc.). It also reads trouble codes and can reset them.

        It's very accurate too. While I'm still calibrating it, it was only off 1/10th of a gallon of fuel on my last fill-up and the speed reading was dead-on to the GPS system I used this past weekend. Those settings can be adjusted though if necessary.

        I've been quite happy with it and only have one minor complaint. I wish it had a way to store data. There's no way to log the data to a laptop that I'm aware of and no way to save to the device. It only saves info for the trip computer, not ECU data. There's only a CAT-5 input from the OBD-II cable, no output to another device. It is quite small though and easy to mount in the vehicle. I have mine sitting on top of the steering column for easy access.

        Considering that it costs about half what a VAG-COM(VW/Audi specific ECU reader) system would be for my car, not to mention needing a laptop for that as well as well, I think it was a pretty good deal. It doesn't do everything a VAG-COM would do(including data-logging), but it's still been very useful for me.
        • 7 Years Ago
        it can't "know" the hp but it can estimated it based on the weight of the car (which you enter) and the acceleration.
      • 7 Years Ago
      Paid for and installed. Now add some modes for location tracking and data gathering at road courses or autocross and we're set. I'll pay for that upgrade, since this drag strip stuff is useless to me.
        • 7 Years Ago
        most new apps will give you any updates for free.
        • 7 Years Ago
        I know Mike, but I'm saying those features would be worth enough (actually collecting "real" data) that I'd pay for the added features. This is neat, but its just a pretty toy showing skidpad (a worthless measure of performance) and 1/4 using only the accelerometer. It needs to tie into the GPS to actually track a real 1/4 mile, or do things like real dataloggers do like plotting a course (road/autox). There's no real reason it couldn't simulate a lap timer -- get back to the pits after a track day and compare with your other buddies how you did... Just some ideas for "upgrades" in the future. Or maybe I should get to coding... ;)
      • 7 Years Ago
      Haha, awesome. The screenshots are for a Mini just like mine.

      At least I know it will be compatible with my car!

      /feigning stupidity.
      • 7 Years Ago
      I bought this immediately. I'l let you know how it works.
      • 7 Years Ago
      I think I need to add this to my iPhone 3G. :)
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