Calibration
Once I go through the calibration routine, it gives me no choice to move onto a test-only a “back” button that takes me back to the “calibration” button, forcing me to start over, in a circle. What may I be doing wrong?
PerfExpert
Car Onboard Dyno & Timer
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Description
Embark the efficiency of a true dyno inside your car!
Measure your real engine power and torque within a 2% margin by performing a simple acceleration with your car!
Make sure your tunings are effective using a completely objective and independent way, without any excessive expense!
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PerfExpert - Car Onboard Dyno & Timer is an application allowing you to measure the performances of your car, such as its real power, torque, and acceleration times. It doesn’t require any connection to your car. Results are provided as detailed reports featuring interactive charts.
How does PerfExpert dyno works ? It's simple :
1. Create your car profile => Describe your car to PerfExpert by providing information such as curb weight, tire sizes or engine displacement. If you don't know how to find your car's specifications, we help you to do so.
2. Mount your phone in your car => No need to connect your phone to your car. With your phone firmly mounted inside your car, PerfExpert can rely on its internal sensors to measure the real acceleration of your car.
3. Accelerate through the entire engine rev range => On a flat, straight and horizontal road, perform an acceleration from low rev to the maximum rev, keeping the same gear : that's it!
IMPORTANT : dyno test is not compatible with automatic gearboxes that doesn't have a manual mode.
With such a tool, you can check the efficiency of your various tunings, ECU mapping, chiptuning, and even your chassis settings.
Using the specification of the tested car and your device’s accelerometer, the application runs our algorithms and dynamic power loss calculations to provide the performances of your car with high accuracy.
Skeptical? Here is a selection of comparison tests between “PerfExpert - Car Onboard Dyno” and real chassis dynos, performed by some of our users : http://bit.ly/perfexpert_vs_chassis_dyno
For further information, you can find our FAQ at https://www.perfexpert-app.com/faq
Here are sample dyno and timed run reports created using the application :
https://network.perfexpert-app.com/results/featured
Join now the growing PerfExpert community:
- Facebook: https://www.facebook.com/PerfExpert
- Support : https://www.facebook.com/groups/perfexpert/
Features:
- Dyno test : measure the power and torque of your engine with advanced loss calculation model. Detection of the engine rev limiter. Detailed reports featuring interactive charts of wheel and engine horsepower and torque / engine speed, just like a regular chassis dynamometer.
- Compute corrected power and torque using the correction norm of your choice (atmospheric pressure, ambient temperature and air humidity are taken into account). Available standards: DIN (Europe), SAE (America), JIS (Japan), CEE (Europe) and ISO (International).
- Timed Run test to measure your 0-60mph, 0-60ft, 0-1/8mi, 0-1/4mi, 0-100km/h, 0-20m, 0-200m, 0-400m, and much more.
- Use of your phone accelerometer at its maximum frequency and advanced signal processing for smoothed curves.
- Custom choice of units from a large choice: Hp, Ch, Cv, Kw, Nm, Ft.Lb, mKg, Mph, Km/h, m, ft, G, m/s², psi, inHg, mBar, °C, °F
- Export reports in Tab Separated Value format and PNG
Hide..
Show more..
Measure your real engine power and torque within a 2% margin by performing a simple acceleration with your car!
Make sure your tunings are effective using a completely objective and independent way, without any excessive expense!
------------
PerfExpert - Car Onboard Dyno & Timer is an application allowing you to measure the performances of your car, such as its real power, torque, and acceleration times. It doesn’t require any connection to your car. Results are provided as detailed reports featuring interactive charts.
How does PerfExpert dyno works ? It's simple :
1. Create your car profile => Describe your car to PerfExpert by providing information such as curb weight, tire sizes or engine displacement. If you don't know how to find your car's specifications, we help you to do so.
2. Mount your phone in your car => No need to connect your phone to your car. With your phone firmly mounted inside your car, PerfExpert can rely on its internal sensors to measure the real acceleration of your car.
3. Accelerate through the entire engine rev range => On a flat, straight and horizontal road, perform an acceleration from low rev to the maximum rev, keeping the same gear : that's it!
IMPORTANT : dyno test is not compatible with automatic gearboxes that doesn't have a manual mode.
With such a tool, you can check the efficiency of your various tunings, ECU mapping, chiptuning, and even your chassis settings.
Using the specification of the tested car and your device’s accelerometer, the application runs our algorithms and dynamic power loss calculations to provide the performances of your car with high accuracy.
Skeptical? Here is a selection of comparison tests between “PerfExpert - Car Onboard Dyno” and real chassis dynos, performed by some of our users : http://bit.ly/perfexpert_vs_chassis_dyno
For further information, you can find our FAQ at https://www.perfexpert-app.com/faq
Here are sample dyno and timed run reports created using the application :
https://network.perfexpert-app.com/results/featured
Join now the growing PerfExpert community:
- Facebook: https://www.facebook.com/PerfExpert
- Support : https://www.facebook.com/groups/perfexpert/
Features:
- Dyno test : measure the power and torque of your engine with advanced loss calculation model. Detection of the engine rev limiter. Detailed reports featuring interactive charts of wheel and engine horsepower and torque / engine speed, just like a regular chassis dynamometer.
- Compute corrected power and torque using the correction norm of your choice (atmospheric pressure, ambient temperature and air humidity are taken into account). Available standards: DIN (Europe), SAE (America), JIS (Japan), CEE (Europe) and ISO (International).
- Timed Run test to measure your 0-60mph, 0-60ft, 0-1/8mi, 0-1/4mi, 0-100km/h, 0-20m, 0-200m, 0-400m, and much more.
- Use of your phone accelerometer at its maximum frequency and advanced signal processing for smoothed curves.
- Custom choice of units from a large choice: Hp, Ch, Cv, Kw, Nm, Ft.Lb, mKg, Mph, Km/h, m, ft, G, m/s², psi, inHg, mBar, °C, °F
- Export reports in Tab Separated Value format and PNG
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User Rating
3.67 out of 5
12 ratings in United States
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Ratings History
Reviews
Helped tune and see HP gains with a turbo
If you get all the parameters right, it’s accurate to +- 5 HP. This app worked so well for me and helped me visualize and tune power gains for my old 86 300ZX, recently turbocharged.
Don’t do it
Does not work at all
Very accurate, useful and stable
I have tested numerous apps which some where OBD2 connected and some like this one, independent of OBD2 being a stand alone one. I was surprised to find out how accurate this app in comparison to a standard dyno. In fact, I feel that this app gives me a more reliable reading in comparison to commercial dyno where parameters can be adjusted by the operators which may not be in line with the proper characteristic of my car. One improvement that I would suggest is: to allow the user to choose the 2 or 3 results that will show up as the “average “ and allow to present this “average “ in a graph. Great app.
Doesn't work
I put all the work in setting up my car but it A) can't retrieve weather data and B) apparently the GPS doesn't work either because it never detects my speed to start measuring.
Nice Accuracy
Key to this app! Key in Correct info. And this app is Great. Excellent tuning tool.
Need a little help
Trying to put all the numbers in properly to dunk the car but I have a 2017 civic lx hatch that is a CVT transmission. I have full bolt ons and running full e85. In the fuel option it only lets me choose between gasoline or diesel and the second problem I have is that I don’t really have any defined gear ratios besides my first gear final drive and reverse. Would the app still be accurate missing those parameters?
Pretty spot on
I have had 3 dynos on my car within the last month so I know what my graph should look like. My car was not listed in the pre selections so I had to input that data. The graphs were really close. It would be impossible to say they just used factory data since my data was not available and it didn’t ask for the horsepower at all. So two thumbs up for me.
Buy a Vbox
Ten bucks down the drain... seems like a cool app, only if you have a supported vehicle. Should just put that $10 towards a Vbox.
Great car performance information
I wasn't ready to go spend hundreds of dollars on a Dyno run. So I went looking for a Dyno for my iPhone and I came across a PerfExpert. PerfExpert was the first performance app I tried. Their website has the information that was not included in the app for how to set it up and make it work. It works so well for me that I didn't even go look for any other dynamometer apps. I recommend this app for anyone that's interested.
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App Info
- Category
- Sports
- Publisher
- Claude JOSEPH ANGELIQUE
- Languages
- German, Bulgarian, English, French, Italian, Norwegian Bokmål, Polish, Portuguese, Russian, Spanish
- Recent version
- 2.2.3 (2 years ago )
- Released on
- Aug 8, 2012 (11 years ago )
- Also available in
- France, United States, Germany, Italy, Romania, United Kingdom, Belgium, Austria, Canada, Portugal, Hungary, Brazil, Turkey, New Zealand, Malaysia, Peru, Norway, Netherlands, Nigeria, Kazakhstan, Mexico, Lebanon, India, Philippines, Pakistan, Poland, Russia, Saudi Arabia, Sweden, Singapore, Thailand, Taiwan, Ukraine, Vietnam, South Africa, Ecuador, Argentina, Australia, Azerbaijan, Belarus, Switzerland, Chile, China, Colombia, Czechia, Denmark, Dominican Republic, Algeria, Kuwait, Egypt, Spain, Finland, Greece, Hong Kong, Indonesia, Ireland, Israel, United Arab Emirates, Japan, South Korea
- Last updated
- 2 weeks ago