Test-Drive: Drag car 0-60 mph vs Harry's Dyno Usage & Stats

Do you want to know exactly how quickly your car accelerates to 60 mph? It's no secret that manufacturer data is approximate and applies only to ideal conditions. To determine your current speed and make measurements from 0 to 60 mph, 60 to 120 mph, or the time it takes to cover a quarter-mile (¼ mile), the Test Drive app will help. No additional devices will be required since your smartphone already has the same accelerometer and GPS sensors. Thanks to these highly sensitive sensors in your iPhone and a unique algorithm, we have the ability to measure the car's acceleration time to the desired speed with high precision. App features include: * Acceleration to 60 mph * Acceleration from 60 to 120 mph * Acceleration to 50 mph * Acceleration from 50 to 70 mph * Time to cover ¼ mile * User-friendly interface * Regular updates and expanding functionality * Race results are automatically saved and can be shared with friends!

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Harry's Dyno

Harry's Dyno is a high precision performance measuring app. It utilizes GPS and OBD sensor input to recognize arbitrary speed ranges like 0-60 mph or 100-200 km/h. Both acceleration and deceleration testing is supported. Results can be compared and analyzed in details. Using two-cursor mode, one can inspect subranges of data recorded (e.g. 80 to 120 km/h for a 0 to 200 km/h). Data is stored locally and can be filtered by speed range and vehicle used. It can be exported to various data formats too. Provided the smartphone is mounted in a position with good GPS accuracy, the internal GPS can be used for measurements. For short speed ranges, high powered vehicles, and highest precision, either external GPS or OBD sensors can be connected. OBD adapters are actually preferable as speed changes are available instantly. We have an always up to date list of compatible accessories available here: www.gps-laptimer.de/compatibility/ios For distance based performance testing (quarter mile etc), please use Harry's LapTimer currently. This mode will be added to Harry's Dyno as a free upgrade shortly. For Harry's LapTimer users! Harry's LapTimer GrandPrix has received a free feature upgrade and includes Harry's Dyno functionality now: please follow LapTimer ‣ Race ‣ Performance to use the dyno mode. In case you have used Harry's LapTimer Petrolhead so far, you may either upgrade it to GrandPrix (LapTimer ‣ Administration ‣ Add-ons), or go for Harry's Dyno as a separate app. Enjoy and let us know what you think! For questions, tipps & tricks, and support, please use our forum www.gps-laptimer-forum.de