RaceDroid Pro GPS OBD2 Dyno
Features:-Measure car performance for flat road runs (based on accelerometer, GPS and other)-Acceleration (none) to .. in km/h (kph) mph , user defined speed ranges-Travel time for 60ft, 330ft, 1/8 mile 1/4 quarter mile (mobile dragstrip)-Very accurate for accelerometer : ~1-2% off car speed sensor-No need to press buttons
- just drive , measure and review the results when you want to -Dyno with dynamic power graph and torque graph over RPM-Store best results and compare it with others
Category : Tools
Reviews (27)
Great app but can't save runs on android 9 (galaxy a20). If you view immediately it's fantastic data though.
Very nice app for checking data after trying new stuff on the car
Great app and a super useful tool. It takes a little bit to get the hang of it and dial it in but will give accurate results
Any vibration wont let the app start.. Needs a manual option stop/start.. Waste of time
Pretty accurate computation..Try a smooth rolling start use a gear tall enough so that the system will have enough time to analyze it. A gear that can run up too 100-120kph before revv limit. Don't revv your 1st gear hard, just settle for that tall gear in a low 1500-2000rpm and just puch till revv limit. But before you run. You just have to know how to input the right frontal area, drag coefficient and other stuff. Make sure there is little or no wind when you run it.
If (1) you are able to obtain every value possible for your vehicle, such as frontal area, drag coefficient, accurate weight, and (2) you understand EXACTLY how to operate the program, you can get a decently accurate wheel horsepower (WHP) reading compared to a real dyno pull. The only drawback is that Racedroid currently can't save multiple profiles for different vehicles.
App works well. Dyno seems very accurate if you put the vehicle's full weight in. Only problem I'm having is the dyno graph seems to stop measuring before redline. I had my foot to the floor until bounced off the limiter but the graph looks like the throttle was let go 1000rpm sooner. So I can't see my actual peak whp.
Last year on a Professional Mustang Dyno in Joliet, IL my car pulled 402 HP and 357 ft-lbs of torque. This app after calibrating had my car at 398 HP and 354 ft-lbs of torque. 1% gap between this free app and very, very, very expensive dyno time! I love it! Wish it could do landscape mode.
Saving and deleting runs very unintuitive, almost impossible. Back button exits app instead of going back in app. Also freezes a lot.
Locked up and froze while accessing the menus on first use, could not be restarted without restarting the entire phone
Accuracy was great when setup correctly. Mph splits really help in tuning Polaris RZR CVT.
Fairly simple, great selection of settings, very intuitive and no bugs!
Crashed never to open again on S7
Latest version of the app works great! Thanks!
Nice app very detailed information
The best app!!! If you know what you are doing... Lol
Will this app really tell me how much hp my car is pushing? ?
Attempted to get this to work multiple times. Got the timer working once but no results.
I have a 91 crx si. Entered car specs. App shows times consistent with manufacturers specs. However, 370+hp reading is WAY off. Found that even when switching units to standard, drag coefficient and frontal area still require metric entries. Be sure to convert for accurate readings. After correcting my mistake I get accurate whp readings. 80hp at the wheels. Love this app !
Very confusing interface before you get used to it. NEEDS an audio que to alert driver when it's ready so you're not staring at your phone puzzled. Please clarify how to find your results after a run with a larger/highlighted/something results section.
My only issue is that all dyno graphs plotted against rpm should have the intersection point at 5252 rpm. Horsepower is torque x rpm / 5252. That means the torque and horsepower curves mathematically have to cross at that rpm if the engine can spin that fast. I am getting erroneous crossovers from time to time but the app is solid otherwise.
app doesnt work properly. did everything it asked and it would not log any data at all. i can get it to go to yellow if i turn my car off, turn it on and vibration makes it go green then i go and bang through the gears then it just resets to black lights and gives me no data. NEED START AND STOP BUTTON TO ENSURE A GOOD READING! DELETING THIS FAIL.
really needs a 'ready' and 'reset' button. the auto method doesnt work very well at all. after adding these it would be at least 4 stars. Exporting results would make it 5 stars
For the people who say it doesn't work either you drive a little civic rice burner or has an old phone or both.
As others have noted, no data gets logged. Said it was ready but then wouldn't show me any data after I stopped. Not sure what's up but this is really not functional at all.
It's amazing how accurate this app is once set up correctly. It took me a while to figure it all out but this app is brilliant. Amazing that a phone can produce hp results like this. Tested on a mini cooper with 115bhp results showed in third gear 115.5bhp.😀
Are the developers going to add any new features to this app? Would be really great if the app has an overlay function where 2 results could be displayed one on top of another. Or, give us an export function so that we generate our own graphs on Excel😁