KryZak Member 91 Member For: 18y 28d Gender: Male Location: Perth, WA Posted 30/12/08 10:37 AM Share Posted 30/12/08 10:37 AM The program doesnt use the iPhone's GPS, only the in built accelerometer, so inaccuracies due to GPS are not relevant. The program is fairly accurate if setup properly. If you give it the correct weight it will calculate the 0-100kph and 1/4mile times based on the G forces that its accelerometer senses. Based on the 0-100kph time relative to the weight of the car, it will calculate the fwkw power of your car given that you have entered the driveline loss % correctly. Assuming the OP has put in roughly 20% driveline loss, then if it spat out ~270kw, then that pretty damn close! As far as the 4.82 goes, the OP probably under estimated the weight of the car that he put in. Link to comment https://www.fordxr6turbo.com/forum/topic/52848-iphone-dyno/page/3/#findComment-793693 Share on other sites More sharing options...
XRSics Donating Members 325 Member For: 16y 6m 24d Gender: Male Location: Melbourne Posted 30/12/08 11:33 AM Share Posted 30/12/08 11:33 AM yer that.. or its just a toy on an iphone/pod Link to comment https://www.fordxr6turbo.com/forum/topic/52848-iphone-dyno/page/3/#findComment-793736 Share on other sites More sharing options...
smicky Go Pies!!! Donating Members 2,852 Member For: 17y 2m 14d Gender: Male Location: Vic Somewhere - Sometimes NSW Posted 30/12/08 11:36 AM Share Posted 30/12/08 11:36 AM (edited) hhhmmm maybe it works, but I would still question a 500$ MP3 player with some free software on a device that was not designed to test such machinery... accurate? hhhmmmIll pay the 80-100$ for a dyno run every time!ipod v's a purpose built testing device - dyno...I rest my case...If someone wants to pm me the link to the software I am more then happy to test it on our ipod touch and compare with the dyno sheet results from late October this year...Please prove me wrong!!! Edited 30/12/08 11:37 AM by smicky Link to comment https://www.fordxr6turbo.com/forum/topic/52848-iphone-dyno/page/3/#findComment-793739 Share on other sites More sharing options...
ms700 Moderating Team 10,170 Member For: 22y 3m Gender: Male Location: Sydney Posted 30/12/08 09:43 PM Share Posted 30/12/08 09:43 PM ummmm, I think this app is for iPhone's only, not iPod's........ Link to comment https://www.fordxr6turbo.com/forum/topic/52848-iphone-dyno/page/3/#findComment-793838 Share on other sites More sharing options...
smicky Go Pies!!! Donating Members 2,852 Member For: 17y 2m 14d Gender: Male Location: Vic Somewhere - Sometimes NSW Posted 30/12/08 11:40 PM Share Posted 30/12/08 11:40 PM Sorry that's what I meant...We have both the Ipod touch, and iphone to test this with... Link to comment https://www.fordxr6turbo.com/forum/topic/52848-iphone-dyno/page/3/#findComment-793870 Share on other sites More sharing options...
KryZak Member 91 Member For: 18y 28d Gender: Male Location: Perth, WA Posted 31/12/08 06:07 AM Share Posted 31/12/08 06:07 AM ummmm, I think this app is for iPhone's only, not iPod's........Nope, iPod touch and iPhone. Link to comment https://www.fordxr6turbo.com/forum/topic/52848-iphone-dyno/page/3/#findComment-794016 Share on other sites More sharing options...
Tim Member 142 Member For: 16y 9m 18d Posted 16/11/10 09:02 AM Share Posted 16/11/10 09:02 AM You can now get a free version that only does the 0-100 and 1/4 mile. I havent had a chance to use it yet.It does have a function to calibrate the sensor in the phone so I think it has a chance to be fairly accurate. Link to comment https://www.fordxr6turbo.com/forum/topic/52848-iphone-dyno/page/3/#findComment-1056268 Share on other sites More sharing options...
Panda Eyes flame magnet Gold Donating Members 5,674 Member For: 16y 11m 14d Gender: Male Location: adelaide hills- 'race air' central Posted 16/11/10 10:27 AM Share Posted 16/11/10 10:27 AM theres also one called M power. done by bmw that does g's and accel etc. tis free too! Link to comment https://www.fordxr6turbo.com/forum/topic/52848-iphone-dyno/page/3/#findComment-1056342 Share on other sites More sharing options...
SuckSqueezeBangBlow ʎǝʞuoɯ ɹoıuǝs Donating Members 1,808 Member For: 16y 4m 15d Gender: Male Posted 16/11/10 10:47 AM Share Posted 16/11/10 10:47 AM there is a free one called Pocket Dyno too, and Logworks also (which can also connect to obd port) Link to comment https://www.fordxr6turbo.com/forum/topic/52848-iphone-dyno/page/3/#findComment-1056348 Share on other sites More sharing options...
MexicanBatman G666E Turbo!!! Member 1,008 Member For: 15y 3m 14d Gender: Male Posted 16/11/10 02:18 PM Share Posted 16/11/10 02:18 PM To those who don't believe it, go and try it, I have been using dynolicious since it was released, if your accelerometer is accurate and you correctly calibrate the phone it's very consistent and accurateI ran some passes at heathcote while using it and it was 2km off the trap speed almost as accurate as the race logic box. But remember it's measuriing speed at the 402m mark so it will be different to the track timers, and it was 0.01 off the time slip et!If you know how to correctly set up and use it it's a great tool, it has rendered my g tech pro useless Link to comment https://www.fordxr6turbo.com/forum/topic/52848-iphone-dyno/page/3/#findComment-1056396 Share on other sites More sharing options...
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