Willy-za

REV App Turns iPhone Into Performance Driving and OBDII Diagnostics Tool Oh and i forgot to mention, that it doesn't always give you current torque, you accually have to do a full power from standstill run to a preset distance for this to calculate your power and torque. much like you would on a normal dyno.

REV App Turns iPhone Into Performance Driving and OBDII Diagnostics Tool Bristol it is hard to change anyones mind, but this does work, i personally used dynoliscios, also a ipod app. it gives power figuger within 3% of the cars qouted power. the cars weight can be 99% accurately measured with a scale or just read off the registration papers. and a roling road is just as inaccurate as you also estimate the drive train losses, and the cooling on a roling road is not nearly as effective for a car as on the open road meanint Inter coolers and radiators and cold air induction don't work as good. and not to mention that a dyno also have to be calibrated regularly. most of the ways of trying to get a cars power figures are inaccurate in some ways. the best way is to just stick to one way and see possable improvements. this is just alot cheaper than to go to the local tune shop to have your car dynoed every time you think you added 3 bhp. You don't have to beleive me and i don't have to sell this to you, i can just tell you that i tested similar app with an ipod and they work. as for radmeister it works for manual cars aswell. it doesn't read torque from the OBDII, it calculates it using user input drivetrain losses and weight and acceleration from the very accurate accelerometers from the ipod touch or iphone. It is possable.

REV App Turns iPhone Into Performance Driving and OBDII Diagnostics Tool BHP can be estimated by using the cars weight that you read into the app, the accelartion and driveline losses. Instant MPG it gets from OBDII which all good car calculates themselfs.